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1. Fast and low power SiPM amplifier operating in a wide temperature range

Author: Carniti, Paolo, Gotti, Claudio, Pessina, Gianluigi Ezio, and Trotta, Davide
Published: 2024
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2. Electronic Instrumentations for High Energy Particle Physics and Neutrino Physics

Author: Carniti, P, PESSINA, GIANLUIGI EZIO, CARNITI, PAOLO, Carniti, P, PESSINA, GIANLUIGI EZIO, and CARNITI, PAOLO
Abstract: La presente dissertazione descrive il design, la caratterizzazione e il funzionamento di sistemi elettronici per esperimenti di Fisica delle particelle (LHCb) e Fisica del neutrino (CUORE e CUPID). A partire dal 2019, l'esperimento LHCb presso l'acceleratore LHC sarà aggiornato per lavorare a luminosità più elevata e molti dei suoi rivelatori dovranno essere riprogettati. Il rivelatore RICH, in particolare, dovrà adottare un sistema optoelettronico totalmente nuovo. Lo sviluppo di questo sistema ha già raggiunto una fase avanzata e diversi test eseguiti su fascio hanno permesso di verificare le prestazioni dell'intero sistema. Per migliorare la stabilità, il filtraggio e la regolazione delle tensioni di alimentazione del circuito di front-end, è stato sviluppato un regolatore lineare a basso dropout e resistente alla radiazione, denominato ALDO. Sono qui presentate le strategie di progetto, la misurazione delle prestazioni e i risultati delle campagne di irraggiamento di questo dispositivo. Nel campo della fisica del neutrino, grandi array di macrobolometri, come quelli adottati dall'esperimento CUORE e dal suo futuro aggiornamento CUPID, offrono delle caratteristiche uniche per lo studio del doppio decadimento beta senza neutrini. Il loro funzionamento richiede particolari strategie progettuali nel sistema elettronico di lettura, che è qui descritto nella sua interezza. Sono anche presentate nel dettaglio le misure di qualifica e ottimizzazione dei parametri di funzionamento di tutto il sistema, oltre che l'integrazione all'interno dell'area sperimentale. Infine sono presentati gli aggiornamenti di alcuni sottosistemi elettronici in vista della fase finale di CUPID., The present dissertation describes design, qualification and operation of several electronic instrumentations for High Energy Particle Physics experiments (LHCb) and Neutrino Physics experiments (CUORE and CUPID). Starting from 2019, the LHCb experiment at the LHC accelerator will be upgraded to operate at higher luminosity and several of its detectors will be redesigned. The RICH detector will require a completely new optoelectronic readout system. The development of such system has already reached an advanced phase, and several tests at particle beam facilities allowed to qualify the performance of the entire system. In order to achieve a higher stability and a better power supply regulation for the front-end chip, a rad-hard low dropout linear regulator, named ALDO, has been developed. Design strategies, performance tests and results from the irradiation campaign are presented. In the Neutrino Physics field, large-scale bolometric detectors, like those adopted by CUORE and its future upgrade CUPID, offer unique opportunities for the study of neutrinoless double beta decay. Their operation requires particular strategies in the readout instrumentation, which is described here in its entirety. The qualification and optimization of the working parameters as well as the integration of the system in the experimental area are also thoroughly discussed, together with the latest upgrades of two electronic subsystems for the future CUPID experiment.
Published: 2018

3. The projected background for the CUORE experiment

Author: Alduino, C, Alfonso, K, Artusa, D, Avignone, F, Azzolini, O, Banks, T, Bari, G, Beeman, J, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, X, Capelli, S, Cappelli, L, Carbone, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, R, Cushman, J, Dâ€™addabbo, A, Dafinei, I, Davis, C, Dellâ€™oro, S, Deninno, M, Di Domizio, S, Di Vacri, M, Drobizhev, A, Fang, D, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Hansen, E, Heeger, K, Hennings Yeomans, R, Hickerson, K, Huang, H, Kadel, R, Keppel, G, Kolomensky, Y, Leder, A, Ligi, C, Lim, K, Ma, Y, Maino, M, Marini, L, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Mosteiro, P, Napolitano, T, Nastasi, M, Nones, C, Norman, E, Novati, V, Nucciotti, A, Oâ€™donnell, T, Ouellet, J, Pagliarone, C, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, Schmidt, J, Scielzo, N, Singh, V, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tomei, C, Trentalange, S, Vignati, M, Wagaarachchi, S, Wang, B, Wang, H, Welliver, B, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zhang, G, Zhu, B, Zimmermann, S, Zucchelli, S, Laubenstein, M, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CARNITI, PAOLO, CASSINA, LORENZO, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, CREMONESI, OLIVIERO, FAVERZANI, MARCO, FERRI, ELENA, FIORINI, ETTORE, GIACHERO, ANDREA, GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, NASTASI, MASSIMILIANO CORRADO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, POZZI, STEFANO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, ZANOTTI, LUIGI ERNESTO, Laubenstein, M., Alduino, C, Alfonso, K, Artusa, D, Avignone, F, Azzolini, O, Banks, T, Bari, G, Beeman, J, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, X, Capelli, S, Cappelli, L, Carbone, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, R, Cushman, J, Dâ€™addabbo, A, Dafinei, I, Davis, C, Dellâ€™oro, S, Deninno, M, Di Domizio, S, Di Vacri, M, Drobizhev, A, Fang, D, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Hansen, E, Heeger, K, Hennings Yeomans, R, Hickerson, K, Huang, H, Kadel, R, Keppel, G, Kolomensky, Y, Leder, A, Ligi, C, Lim, K, Ma, Y, Maino, M, Marini, L, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Mosteiro, P, Napolitano, T, Nastasi, M, Nones, C, Norman, E, Novati, V, Nucciotti, A, Oâ€™donnell, T, Ouellet, J, Pagliarone, C, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, Schmidt, J, Scielzo, N, Singh, V, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tomei, C, Trentalange, S, Vignati, M, Wagaarachchi, S, Wang, B, Wang, H, Welliver, B, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zhang, G, Zhu, B, Zimmermann, S, Zucchelli, S, Laubenstein, M, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CARNITI, PAOLO, CASSINA, LORENZO, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, CREMONESI, OLIVIERO, FAVERZANI, MARCO, FERRI, ELENA, FIORINI, ETTORE, GIACHERO, ANDREA, GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, NASTASI, MASSIMILIANO CORRADO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, POZZI, STEFANO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, ZANOTTI, LUIGI ERNESTO, and Laubenstein, M.
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is designed to search for neutrinoless double beta decay of 130Te with an array of 988 TeO2Â bolometers operating at temperatures around 10 mK. The experiment is currently being commissioned in Hall A of Laboratori Nazionali del Gran Sasso, Italy. The goal of CUORE is to reach a 90% C.L. exclusion sensitivity on the 130Te decay half-life of 9 Ã 1025 years after 5Â years of data taking. The main issue to be addressed to accomplish this aim is the rate of background events in the region of interest, which must not be higher than 10- 2Â counts/keV/kg/year. We developed a detailed Monte Carlo simulation, based on results from a campaign of material screening, radioassays, and bolometric measurements, to evaluate the expected background. This was used over the years to guide the construction strategies of the experiment and we use it here to project a background model for CUORE. In this paper we report the results of our study and our expectations for the background rate in the energy region where the peak signature of neutrinoless double beta decay of 130Te is expected.
Published: 2017

4. Detectors and equipment for Neutrino and High Energy Physics

Author: CALVI, MARTA, Cassina, L, PESSINA, GIANLUIGI EZIO, CASSINA, LORENZO, CALVI, MARTA, Cassina, L, PESSINA, GIANLUIGI EZIO, and CASSINA, LORENZO
Abstract: During my PhD I have been involved in two experiments, LHCb (at CERN) and CUORE (at LNGS). The former is devoted to search of physics beyond the Standard Model. I collaborated to characterize MaPMTs and develop the read-out electronic system. Such equipment will be used for the upgrade of the RICH detector, responsible for the particle identification. CUORE is an experiment searching the neutrinoless double beta decay in tellurium 130. I collaborated to develop and mount the electronic apparatus. The studies on the linear power supply, the slow control communication system and the ultra-precise and ultra-stable pulser board for the bolometer response stabilization, will be described., During my PhD I have been involved in two experiments, LHCb (at CERN) and CUORE (at LNGS). The former is devoted to search of physics beyond the Standard Model. I collaborated to characterize MaPMTs and develop the read-out electronic system. Such equipment will be used for the upgrade of the RICH detector, responsible for the particle identification. CUORE is an experiment searching the neutrinoless double beta decay in tellurium 130. I collaborated to develop and mount the electronic apparatus. The studies on the linear power supply, the slow control communication system and the ultra-precise and ultra-stable pulser board for the bolometer response stabilization, will be described.
Published: 2017

5. Measuring the electron neutrino mass with improved sensitivity: the HOLMES experiment

Author: Giachero, A, Alpert, B, Becker, D, Bennett, D, Biasotti, M, Brofferio, C, Ceriale, V, Ceruti, G, Corsini, D, Day, P, Gerone, M, Dressler, R, Faverzani, M, Ferri, E, Fowler, J, Fumagalli, E, Gallucci, G, Gard, J, Gatti, F, Hays Wehle, J, Heinitz, S, Hilton, G, Köster, U, Lusignoli, M, Mates, J, Nisi, S, Nucciotti, A, Orlando, A, Parodi, L, Pessina, G, Pizzigoni, G, Puiu, P, Ragazzi, S, Reintsema, C, Gomes, M, Schmidt, D, Schumann, D, Siccardi, F, Sisti, M, Swetz, D, Terranova, F, Ullom, J, Vale, L, GIACHERO, ANDREA, BROFFERIO, CHIARA, DAY, PETER KENNETH, FAVERZANI, MARCO, FERRI, ELENA, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, PUIU, PAUL ANDREI, RAGAZZI, STEFANO, SISTI, MONICA, TERRANOVA, FRANCESCO, Vale, L., Giachero, A, Alpert, B, Becker, D, Bennett, D, Biasotti, M, Brofferio, C, Ceriale, V, Ceruti, G, Corsini, D, Day, P, Gerone, M, Dressler, R, Faverzani, M, Ferri, E, Fowler, J, Fumagalli, E, Gallucci, G, Gard, J, Gatti, F, Hays Wehle, J, Heinitz, S, Hilton, G, Köster, U, Lusignoli, M, Mates, J, Nisi, S, Nucciotti, A, Orlando, A, Parodi, L, Pessina, G, Pizzigoni, G, Puiu, P, Ragazzi, S, Reintsema, C, Gomes, M, Schmidt, D, Schumann, D, Siccardi, F, Sisti, M, Swetz, D, Terranova, F, Ullom, J, Vale, L, GIACHERO, ANDREA, BROFFERIO, CHIARA, DAY, PETER KENNETH, FAVERZANI, MARCO, FERRI, ELENA, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, PUIU, PAUL ANDREI, RAGAZZI, STEFANO, SISTI, MONICA, TERRANOVA, FRANCESCO, and Vale, L.
Abstract: HOLMES is a new experiment aiming at directly measuring the neutrino mass with a sensitivity below 2 eV . HOLMES will perform a calorimetric measurement of the energy released in the decay of 163Ho. The calorimetric measurement eliminates systematic uncertainties arising from the use of external beta sources, as in experiments with spectrometers. This measurement was proposed in 1982 by A. De Rujula and M. Lusignoli, but only recently the detector technological progress has allowed to design a sensitive experiment. HOLMES will deploy a 1000 pixels array of low temperature microcalorimeters with implanted 163Ho nuclei. HOLMES, besides being an important step forward in the direct neutrino mass measurement with a calorimetric approach, will also establish the potential of this approach to extend the sensitivity down to 0.1 eV and lower. The detectors used for the HOLMES experiment will be Mo/Cu bilayers TESs (Transition Edge Sensors) on SiNx membrane with gold absorbers. Microwave multiplexed rf-SQUIDs are the best available technique to read out large array of such detectors. An extensive R&D activity is in progress in order to maximize the multiplexing factor while preserving the performances of the individual detectors. To embed the 163Ho into the gold absorbers a custom mass separator ion implanter is being developed. The current activities are focused on the the single detector performances optimization and on the 163Ho isotope production and embedding. A preliminary measurement of a sub-array of 4× 16 detectors is planned late in 2017. In this contribution we present the HOLMES project with its technical challenges, its status and perspectives.
Published: 2017

6. Test of the photon detection system for the LHCb RICH Upgrade in a charged particle beam

Author: Baszczyk, M, Benettoni, M, Calabrese, R, Cardinale, R, Carniti, P, Cassina, L, Cavallero, G, Cojocariu, L, Ramusino, A, D'Ambrosio, C, Dorosz, P, Easo, S, Eisenhardt, S, Fiorini, M, Frei, C, Gambetta, S, Gibson, V, Gotti, C, Harnew, N, He, J, Keizer, F, Kucewicz, W, Maciuc, F, Maino, M, Malaguti, R, Matteuzzi, C, Mccann, M, Morris, A, Muheim, F, Papanestis, A, Pessina, G, Petrolini, A, Piedigrossi, D, Pistone, A, Placinta, V, Sigurdsson, S, Simi, G, Smith, J, Spradlin, P, Tomassetti, L, Wotton, S, Wotton, S., CARNITI, PAOLO, CASSINA, LORENZO, GOTTI, CLAUDIO, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, Baszczyk, M, Benettoni, M, Calabrese, R, Cardinale, R, Carniti, P, Cassina, L, Cavallero, G, Cojocariu, L, Ramusino, A, D'Ambrosio, C, Dorosz, P, Easo, S, Eisenhardt, S, Fiorini, M, Frei, C, Gambetta, S, Gibson, V, Gotti, C, Harnew, N, He, J, Keizer, F, Kucewicz, W, Maciuc, F, Maino, M, Malaguti, R, Matteuzzi, C, Mccann, M, Morris, A, Muheim, F, Papanestis, A, Pessina, G, Petrolini, A, Piedigrossi, D, Pistone, A, Placinta, V, Sigurdsson, S, Simi, G, Smith, J, Spradlin, P, Tomassetti, L, Wotton, S, Wotton, S., CARNITI, PAOLO, CASSINA, LORENZO, GOTTI, CLAUDIO, MAINO, MATTEO, and PESSINA, GIANLUIGI EZIO
Abstract: The LHCb detector will be upgraded to make more efficient use of the available luminosity at the LHC in Run III and extend its potential for discovery. The Ring Imaging Cherenkov detectors are key components of the LHCb detector for particle identification. In this paper we describe the setup and the results of tests in a charged particle beam, carried out to assess prototypes of the upgraded opto-electronic chain from the Multi-Anode PMT photosensor to the readout and data acquisition system.
Published: 2017

7. Measurement of the ratio of prompt χ c to J/ψ production in pp collisions at √s=7 TeV

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Arrabito, L, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, de Bruyn, K, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Capua, S, De Cian, M, De Lorenzi, F, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicks, E, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, McGregor, G, McNulty, R, Meissner, M, Merk, M, Merkel, J, Miglioranzi, S, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, K, Palacios, J, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Plackett, R, Playfer, S, Plo Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Raven, G, Redford, S, Reid, M, dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Urquijo, P, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Voss, H, Waldi, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Arrabito, L, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, de Bruyn, K, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Capua, S, De Cian, M, De Lorenzi, F, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicks, E, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, Mcgregor, G, Mcnulty, R, Meissner, M, Merk, M, Merkel, J, Miglioranzi, S, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, K, Palacios, J, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Plackett, R, Playfer, S, Plo Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Raven, G, Redford, S, Reid, M, dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Urquijo, P, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Voss, H, Waldi, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zvyagin, A, (Astro)-Particles Physics, and Theoretical Physics
Subjects: Nuclear and High Energy Physics, FIS/01 - FISICA SPERIMENTALE, High Energy Physics::Experiment, SDG 7 - Affordable and Clean Energy, Nuclear Experiment, Nuclear and High Energy Physics, Heavy Flavour Physics, LHC Collider, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
Abstract: The prompt production of charmonium χ c and J/ψ states is studied in proton-proton collisions at a centre-of-mass energy of s=7 TeV at the Large Hadron Collider. The χ c and J/ψ mesons are identified through their decays χ c→J/ψγ and J/ψ→μ +μ - using 36 pb -1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J/ψ, σ(χ c→J/ψγ)/σ(J/ψ), is determined as a function of the J/ψ transverse momentum in the range 2
Published: 2012

8. The COSINUS project: perspectives of a NaI scintillating calorimeter for dark matter search

Author: Angloher, G, Carniti, P, Cassina, L, Gironi, L, Gotti, C, Gütlein, A, Hauff, D, Maino, M, Nagorny, S, Pagnanini, L, Pessina, G, Petricca, F, Pirro, S, Pröbst, F, Reindl, F, Schäffner, K, Schieck, J, Seidel, W, Seidel, W., CARNITI, PAOLO, CASSINA, LORENZO, GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, Angloher, G, Carniti, P, Cassina, L, Gironi, L, Gotti, C, Gütlein, A, Hauff, D, Maino, M, Nagorny, S, Pagnanini, L, Pessina, G, Petricca, F, Pirro, S, Pröbst, F, Reindl, F, Schäffner, K, Schieck, J, Seidel, W, Seidel, W., CARNITI, PAOLO, CASSINA, LORENZO, GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, and PESSINA, GIANLUIGI EZIO
Abstract: The R&D project COSINUS (Cryogenic Observatory for SIgnatures seen in Next-generation Underground Searches) aims to develop a cryogenic scintillating calorimeter using an undoped NaI-crystal as target for direct dark matter search. Dark matter particles interacting with the detector material generate both a phonon signal and scintillation light. While the phonon signal provides a precise determination of the deposited energy, the simultaneously measured scintillation light allows for particle identification on an event-by-event basis, a powerful tool to study material-dependent interactions, and to suppress backgrounds. Using the same target material as the DAMA/LIBRA collaboration, the COSINUS technique may offer a unique possibility to investigate and contribute information to the presently controversial situation in the dark matter sector. We report on the dedicated design planned for the NaI proof-of-principle detector and the objectives of using this detection technique in the light of direct dark matter detection.
Published: 2016

9. Status of CUORE Experiment and latest results from CUORE-0

Author: Pagliarone, C, Alduino, C, Alfonso, K, Artusa, D, Avignone, F, Azzolini, O, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, X, Capelli, S, Cappelli, L, Carbone, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, R, Cushman, J, Dafinei, I, Davis, C, Dell'Oro, S, Deninno, M, Di Domizio, S, Di Vacri, M, Drobizhev, A, Fang, D, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Hansen, E, Heeger, K, Hennings Yeomans, R, Hickerson, K, Huang, H, Kadel, R, Keppel, G, Kolomensky, Y, Leder, A, Ligi, C, Lim, K, Liu, X, Ma, Y, Maino, M, Marini, L, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Mosteiro, P, Napolitano, T, Nones, C, Norman, E, Nucciotti, A, O'Donnell, T, Orio, F, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Santone, D, Scielzo, N, Singh, V, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wagaarachchi, S, Wang, B, Wang, H, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zhang, G, Zhu, B, Zimmermann, S, Zucchelli, S, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CARNITI, PAOLO, CASSINA, LORENZO, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, CREMONESI, OLIVIERO, FAVERZANI, MARCO, FERRI, ELENA, FIORINI, ETTORE, GIACHERO, ANDREA, GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, POZZI, STEFANO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, ZANOTTI, LUIGI ERNESTO, Zucchelli, S., Pagliarone, C, Alduino, C, Alfonso, K, Artusa, D, Avignone, F, Azzolini, O, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, X, Capelli, S, Cappelli, L, Carbone, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, R, Cushman, J, Dafinei, I, Davis, C, Dell'Oro, S, Deninno, M, Di Domizio, S, Di Vacri, M, Drobizhev, A, Fang, D, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Hansen, E, Heeger, K, Hennings Yeomans, R, Hickerson, K, Huang, H, Kadel, R, Keppel, G, Kolomensky, Y, Leder, A, Ligi, C, Lim, K, Liu, X, Ma, Y, Maino, M, Marini, L, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Mosteiro, P, Napolitano, T, Nones, C, Norman, E, Nucciotti, A, O'Donnell, T, Orio, F, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Santone, D, Scielzo, N, Singh, V, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wagaarachchi, S, Wang, B, Wang, H, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zhang, G, Zhu, B, Zimmermann, S, Zucchelli, S, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CARNITI, PAOLO, CASSINA, LORENZO, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, CREMONESI, OLIVIERO, FAVERZANI, MARCO, FERRI, ELENA, FIORINI, ETTORE, GIACHERO, ANDREA, GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, POZZI, STEFANO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, ZANOTTI, LUIGI ERNESTO, and Zucchelli, S.
Abstract: Neutrinoless Double Beta Decay (0 nu beta beta) is a rare nuclear transition that if it occurs at all it will be very important for the exploration of the inverted hierarchy region of the neutrino mass pattern. The Cryogenic Underground Observatory for Rare Events (CUORE) is an experiment that aims to search for such a transition in 130 Te together with other rare processes. In the present paper we will describe the basic features of CUORE Experiment, the status of the experiment as well as the latest results obtained from CUORE-0 detector, a smaller scale experiment constructed to test and demonstrate the expected performances of CUORE.
Published: 2016

10. A CsI low-temperature detector for dark matter search

Author: Angloher, G, Dafinei, I, Gektin, A, Gironi, L, Gotti, C, Gütlein, A, Hauff, D, Maino, M, Nagorny, S, Nisi, S, Pagnanini, L, Pattavina, L, Pessina, G, Petricca, F, Pirro, S, Pröbst, F, Reindl, F, Schäffner, K, Schieck, J, Seidel, W, Vasyukov, S, Vasyukov, S., GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, Angloher, G, Dafinei, I, Gektin, A, Gironi, L, Gotti, C, Gütlein, A, Hauff, D, Maino, M, Nagorny, S, Nisi, S, Pagnanini, L, Pattavina, L, Pessina, G, Petricca, F, Pirro, S, Pröbst, F, Reindl, F, Schäffner, K, Schieck, J, Seidel, W, Vasyukov, S, Vasyukov, S., GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, and PESSINA, GIANLUIGI EZIO
Abstract: Cryogenic detectors have a long history of success in the field of rare event searches. In particular scintillating calorimeters are very suitable detectors for this task since two signals are induced by a particle interaction in a scintillating crystal. The thermal signal provides a precise measurement of the deposited energy while the simultaneously measured scintillation light signal yields particle discrimination as the amount of produced scintillation light depends on the nature of the interacting particle. We investigate the calorimetric properties and background rejection capabilities of two large CsI (undoped) crystals (∼122 g each) operated as scintillating calorimeters at milli-Kelvin temperatures. Furthermore, we discuss the feasibility of this detection approach towards a future background-free dark matter experiment based on alkali halide crystals, with active particle discrimination via the two-channel detection.
Published: 2016

11. The supply voltage apparatus of the CUORE experiment

Author: Arnaboldi, C, Bau', A, Carniti, P, Cassina, L, Giachero, A, Gotti, C, Maino, M, Passerini, A, Pessina, G, ARNABOLDI, CLAUDIO, BAU', ALESSANDRO, CARNITI, PAOLO, CASSINA, LORENZO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, PASSERINI, ANDREA, PESSINA, GIANLUIGI EZIO, Arnaboldi, C, Bau', A, Carniti, P, Cassina, L, Giachero, A, Gotti, C, Maino, M, Passerini, A, Pessina, G, ARNABOLDI, CLAUDIO, BAU', ALESSANDRO, CARNITI, PAOLO, CASSINA, LORENZO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, PASSERINI, ANDREA, and PESSINA, GIANLUIGI EZIO
Abstract: The Electronics system of experiments for the study of rare decays, such as the neutrino-less double beta decay, must be very stable over very long expected runs. We introduce our solution for the power supply of such an experiment, CUORE. In this case the power supply chain consists of a series of ACDCs, followed by DCDCs and then Linear Regulators. We emphasize here our approach to the DCDC regulation system that was designed with a complete rejection of the switching noise, across 100 MHz bandwidth. In the experimental layout the DCDC will be located far from the very front-end, with long connecting cables (10 m). We introduced our very simple and safe solution to prevent huge over-voltages, due to the energy stored in the inductance of the cables, generated after the release of accidental short circuits, so avoiding destructive effects. Some micro-controllers are present on every board and take care of the DCDC operation. These micro-controllers are managed from the control room, via CAN BUS protocol coupled via optical fibres. CUORE is an array of 1000 cryogenic detectors that will need 30 of our DCDCs.
Published: 2016

12. The HOLMES Experiment

Author: Faverzani, M, Alpert, B, Backer, D, Bennet, D, Biasotti, M, Brofferio, C, Ceriale, V, Ceruti, G, Corsini, D, Day, P, De Gerone, M, Dressler, R, Ferri, E, Fowler, J, Fumagalli, E, Gard, J, Gatti, F, Giachero, A, Hays Wehle, J, Heinitz, S, Hilton, G, Köster, U, Lusignoli, M, Maino, M, Mates, J, Nisi, S, Nizzolo, R, Nucciotti, A, Orlando, A, Parodi, L, Pessina, G, Pizzigoni, G, Puiu, P, Ragazzi, S, Reintsema, C, Ribeiro Gomez, M, Schmidt, D, Schuman, D, Siccardi, F, Sisti, M, Swetz, D, Terranova, F, Ullom, J, Vale, L, FAVERZANI, MARCO, BROFFERIO, CHIARA, DAY, PETER KENNETH, FERRI, ELENA, GIACHERO, ANDREA, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, PUIU, PAUL ANDREI, RAGAZZI, STEFANO, SISTI, MONICA, TERRANOVA, FRANCESCO, Vale, L., Faverzani, M, Alpert, B, Backer, D, Bennet, D, Biasotti, M, Brofferio, C, Ceriale, V, Ceruti, G, Corsini, D, Day, P, De Gerone, M, Dressler, R, Ferri, E, Fowler, J, Fumagalli, E, Gard, J, Gatti, F, Giachero, A, Hays Wehle, J, Heinitz, S, Hilton, G, Köster, U, Lusignoli, M, Maino, M, Mates, J, Nisi, S, Nizzolo, R, Nucciotti, A, Orlando, A, Parodi, L, Pessina, G, Pizzigoni, G, Puiu, P, Ragazzi, S, Reintsema, C, Ribeiro Gomez, M, Schmidt, D, Schuman, D, Siccardi, F, Sisti, M, Swetz, D, Terranova, F, Ullom, J, Vale, L, FAVERZANI, MARCO, BROFFERIO, CHIARA, DAY, PETER KENNETH, FERRI, ELENA, GIACHERO, ANDREA, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, PUIU, PAUL ANDREI, RAGAZZI, STEFANO, SISTI, MONICA, TERRANOVA, FRANCESCO, and Vale, L.
Abstract: The determination of the neutrino mass is an open issue in modern particle physics and astrophysics. The direct mass measurement is the only theory-unrelated experimental tool capable to probe such quantity. The HOLMES experiment will measure the end-point energy of the electron capture decay of 163Ho, aiming at a statistical sensitivity on the neutrino mass around 1 eV/c2. In order to acquire the large needed statistics by keeping the pile-up contribution as low as possible, 1000 transition edge sensors will be readout simultaneously with the frequency domain readout, a multiplexing technique where the multiplex factor is only limited by the bandwidth of the available commercial fast digitizers. We outline here the HOLMES project with its technical challenges, and its status and perspectives.
Published: 2016

13. Measurement of the B ̄s0 → D s- Ds+ and ̄ Bs 0 → D-Ds+ effective lifetimes

Author: Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves Jr, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J, Badalov, A, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Borsato, M, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Calabrese, R, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Campora Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Castillo Garcia, L, Cattaneo, M, Cauet, C, Cenci, R, Charles, M, Charpentier, P, Cheung, S, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cruz Torres, M, Cunliffe, S, Currie, R, D'Ambrosio, C, Dalseno, J, David, P, Davis, A, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Déléage, N, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Donleavy, S, Dordei, F, Dorosz, P, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Durante, P, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Falabella, A, Färber, C, Farinelli, C, Farry, S, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fiore, M, Fiorini, M, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gianelle, A, Gibson, V, Giubega, L, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Griffith, P, Grillo, L, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Hafkenscheid, T, Haines, S, Hall, S, Hamilton, B, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Head, T, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Heß, M, Hicheur, A, Hill, D, Hoballah, M, Hombach, C, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jawahery, A, Jing, F, John, M, Johnson, D, Jones, C, Joram, C, Jost, B, Jurik, N, Kaballo, M, Kandybei, S, Kanso, W, Karacson, M, Karbach, T, Kenyon, I, Ketel, T, Klaver, S, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kudryavtsev, V, Kurek, K, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Liles, M, Lindner, R, Linn, C, Lionetto, F, Liu, B, Liu, G, Lohn, S, Longstaff, I, Lopes, J, Lopez March, N, Lowdon, P, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Luppi, E, Lupton, O, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Maratas, J, Marconi, U, Marino, P, Märki, R, Marks, J, Martellotti, G, Martens, A, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martins Tostes, D, Martynov, A, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Mazurov, A, McCann, M, McCarthy, J, McNab, A, McNulty, R, McSkelly, B, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morandin, M, Morawski, P, Mordà, A, Morello, M, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neubert, S, Neufeld, N, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Onderwater, G, Orlandea, M, Otalora Goicochea, J, Owen, P, Oyanguren, A, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Pappalardo, L, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pearce, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, Perret, P, Perrin Terrin, M, Pescatore, L, Pesen, E, Petridis, K, Petrolini, A, Picatoste Olloqui, E, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, A, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pritchard, A, Prouve, C, Pugatch, V, Puig Navarro, A, Punzi, G, Qian, W, Rachwal, B, Rademacker, J, Rakotomiaramanana, B, Rama, M, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reichert, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Rives Molina, V, Roa Romero, D, Robbe, P, Roberts, D, Rodrigues, A, Rodrigues, E, Rodriguez Perez, P, Roiser, S, Romanovsky, V, Romero Vidal, A, Rotondo, M, Rouvinet, J, Ruf, T, Ruffini, F, Ruiz, H, Ruiz Valls, P, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salustino Guimaraes, V, Sanmartin Sedes, B, Santacesaria, R, Santamarina Rios, C, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Simi, G, Sirendi, M, Skidmore, N, Skwarnicki, T, Smith, N, Smith, E, Smith, J, Smith, M, Snoek, H, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stevenson, S, Stoica, S, Stone, S, Storaci, B, Stracka, S, Straticiuc, M, Straumann, U, Stroili, R, Subbiah, V, Sun, L, Sutcliffe, W, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szilard, D, Szumlak, T, T'Jampens, S, Teklishyn, M, Tellarini, G, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubeda Garcia, M, Ukleja, A, Ustyuzhanin, A, Uwer, U, Vagnoni, V, Valenti, G, Vallier, A, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, De Vries, J, Waldi, R, Wallace, C, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Warrington, N, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wimberley, J, Wishahi, J, Wislicki, W, Witek, M, Wormser, G, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, Z, Yang, Z, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, KHANJI, BASEM, KUCHARCZYK, MARCIN, PESSINA, GIANLUIGI EZIO, Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves Jr, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J, Badalov, A, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Borsato, M, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Calabrese, R, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Campora Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Castillo Garcia, L, Cattaneo, M, Cauet, C, Cenci, R, Charles, M, Charpentier, P, Cheung, S, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cruz Torres, M, Cunliffe, S, Currie, R, D'Ambrosio, C, Dalseno, J, David, P, Davis, A, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Déléage, N, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Donleavy, S, Dordei, F, Dorosz, P, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Durante, P, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Falabella, A, Färber, C, Farinelli, C, Farry, S, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fiore, M, Fiorini, M, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gianelle, A, Gibson, V, Giubega, L, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Griffith, P, Grillo, L, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Hafkenscheid, T, Haines, S, Hall, S, Hamilton, B, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Head, T, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Heß, M, Hicheur, A, Hill, D, Hoballah, M, Hombach, C, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jawahery, A, Jing, F, John, M, Johnson, D, Jones, C, Joram, C, Jost, B, Jurik, N, Kaballo, M, Kandybei, S, Kanso, W, Karacson, M, Karbach, T, Kenyon, I, Ketel, T, Khanji, B, Klaver, S, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kudryavtsev, V, Kurek, K, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Liles, M, Lindner, R, Linn, C, Lionetto, F, Liu, B, Liu, G, Lohn, S, Longstaff, I, Lopes, J, Lopez March, N, Lowdon, P, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Luppi, E, Lupton, O, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Maratas, J, Marconi, U, Marino, P, Märki, R, Marks, J, Martellotti, G, Martens, A, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martins Tostes, D, Martynov, A, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Mazurov, A, Mccann, M, Mccarthy, J, Mcnab, A, Mcnulty, R, Mcskelly, B, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morandin, M, Morawski, P, Mordà, A, Morello, M, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neubert, S, Neufeld, N, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Onderwater, G, Orlandea, M, Otalora Goicochea, J, Owen, P, Oyanguren, A, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Pappalardo, L, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pearce, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, Perret, P, Perrin Terrin, M, 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H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Simi, G, Sirendi, M, Skidmore, N, Skwarnicki, T, Smith, N, Smith, E, Smith, J, Smith, M, Snoek, H, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stevenson, S, Stoica, S, Stone, S, Storaci, B, Stracka, S, Straticiuc, M, Straumann, U, Stroili, R, Subbiah, V, Sun, L, Sutcliffe, W, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szilard, D, Szumlak, T, T'Jampens, S, Teklishyn, M, Tellarini, G, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, 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Subjects: Physics and Astronomy (all)
Abstract: The first measurement of the effective lifetime of the B̄s0 meson in the decay B̄s0→Ds-Ds+ is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb-1, collected by the LHCb experiment. The measured value of the B̄s0→Ds-Ds+ effective lifetime is 1.379±0.026±0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B̄s0 mass eigenstate of ΓL=0.725±0. 014±0.009 ps-1. The B̄s0 lifetime is also measured using the flavor-specific B̄s0→D-Ds+ decay to be 1.52±0.15±0.01 ps. © 2014 CERN, for the LHCb Collaboration.
Published: 2014

14. LHCb detector performance

Author: Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J, Badalov, A, Baesso, C, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Borsato, M, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brodzicka, J, Brook, N, Brown, H, Bursche, A, Buytaert, J, Cadeddu, S, Calabrese, R, Calvi, M, Calvo Gomez, M, Campana, P, Campora Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cassina, L, Castillo Garcia, L, Cattaneo, M, Cauet, C, Cenci, R, Charles, M, Charpentier, P, Chefdeville, M, Chen, S, Cheung, S, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coco, V, Cogan, J, Cogneras, E, Cogoni, V, Cojocariu, L, Collazuol, G, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Corvo, M, Counts, I, Couturier, B, Cowan, G, Craik, D, Crocombe, A, Cruz Torres, M, Cunliffe, S, Currie, R, D'Ambrosio, C, Dalseno, J, David, P, Davis, A, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Déĺeage, N, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Donleavy, S, Dordei, F, Dorigo, M, Dosil Súarez, A, Dossett, D, Dovbnya, A, Dreimanis, K, Dujany, G, Dupertuis, F, Durante, P, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Ely, S, Esen, S, Evans, H, Evans, T, Falabella, A, Färber, C, Farinelli, C, Farley, N, Farry, S, Fay, R, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fiore, M, Fiorini, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, Fol, P, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Fu, J, Furfaro, E, Gallas Torreira, A, Galli, D, Gallorini, S, Gambetta, S, Gandelman, M, Gandini, P, Gao, Y, Garćia Pardiñas, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gavardi, L, Geraci, A, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gianelle, A, Giani, S, Gibson, V, Giubega, L, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gotti, C, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graverini, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Griffith, P, Grillo, L, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hamilton, B, Hampson, T, Han, X, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, He, J, Head, T, Heijne, V, Hennessy, K, Henrard, P, Henry, L, Hernando Morata, J, Van Herwijnen, E, Heß, M, Hicheur, A, Hill, D, Hoballah, M, Hombach, C, Hulsbergen, W, Hunt, P, Hussain, N, Hutchcroft, D, Hynds, D, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jalocha, J, Jans, E, Jaton, P, Jawahery, A, Jing, F, John, M, Johnson, D, Jones, C, Joram, C, Jost, B, Jurik, N, Kandybei, S, Kanso, W, Karacson, M, Karbach, T, Karodia, S, Kelsey, M, Kenyon, I, Ketel, T, Khanji, B, Khurewathanakul, C, Klaver, S, Klimaszewski, K, Kochebina, O, Kolpin, M, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, 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Mcnab, A, Mcnulty, R, Mcskelly, B, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Moggi, N, Molina Rodriguez, J, Monteil, S, Morandin, M, Morawski, P, Mordà, A, Morello, M, Moron, J, Morris, A, Mountain, R, Muheim, F, Müller, K, Mussini, M, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neuner, M, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Novoselov, A, O'Hanlon, D, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Onderwater, C, Orlandea, M, Otalora Goicochea, J, Owen, P, Oyanguren, A, Pal, B, Palano, A, Palombo, F, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Pappalardo, L, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perret, P, Perrin Terrin, M, Pescatore, L, Pesen, E, Pessina, G, Petridis, K, Petrolini, A, Picatoste Olloqui, E, Pietrzyk, B, Pilar, T, Pinci, D, Pistone, A, Playfer, S, Plo Casasus, M, Polci, F, Poluektov, A, Polyakov, I, Polycarpo, E, Popov, A, Popov, D, Popovici, B, Potterat, C, Price, E, Price, J, Prisciandaro, J, Pritchard, A, Prouve, C, Pugatch, V, Puig Navarro, A, Punzi, G, Qian, W, Rachwal, B, Rademacker, J, Rakotomiaramanana, B, Rama, M, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redi, F, Reichert, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, S, Rihl, M, Rinnert, K, Rives Molina, V, Robbe, P, Rodrigues, A, Rodrigues, E, Rodriguez Perez, P, Roiser, S, Romanovsky, V, Romero Vidal, A, Rotondo, M, Rouvinet, J, Ruf, T, Ruiz, H, Ruiz Valls, P, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salustino Guimaraes, V, Sanchez Mayordomo, C, Sanmartin Sedes, B, Santacesaria, R, Santamarina Rios, C, Santovetti, E, Sarti, A, Satriano, C, Satta, A, Saunders, D, Savrina, D, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Semennikov, A, Sepp, I, Serra, N, Serrano, J, Sestini, L, Seyfert, P, Shapkin, M, Shapoval, I, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, V, Shires, A, Silva Coutinho, R, Simi, G, Sirendi, M, Skidmore, N, Skillicorn, I, Skwarnicki, T, Smith, N, Smith, E, Smith, J, Smith, M, Snoek, H, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Sridharan, S, Stagni, F, Stahl, M, Stahl, S, Steinkamp, O, Stenyakin, O, Stevenson, S, Stoica, S, Stone, S, Storaci, B, Stracka, S, Straticiuc, M, Straumann, U, Stroili, R, Subbiah, V, Sun, L, Sutcliffe, W, Swientek, K, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Tellarini, G, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubeda Garcia, M, Ukleja, A, Ustyuzhanin, A, Uwer, U, Vacca, C, Vagnoni, V, Valenti, G, Vallier, A, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vieites Diaz, M, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, De Vries, J, Waldi, R, Wallace, C, Wallace, R, Walsh, J, Wandernoth, S, Wang, J, Ward, D, Watson, N, Websdale, D, Whitehead, M, Wicht, J, Wiedner, D, Wilkinson, G, Williams, M, Wilschut, H, Wilson, F, Wimberley, J, Wishahi, J, Wislicki, W, Witek, M, Wormser, G, Wotton, S, Wright, S, Wyllie, K, Xie, Y, Xing, Z, Xu, Z, Yang, Z, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A, Zvyagin, A., CALVI, MARTA, CASSINA, LORENZO, GOTTI, CLAUDIO, GRILLO, LUCIA, KHANJI, BASEM, KUCHARCZYK, MARCIN, MATTEUZZI, CLARA, PESSINA, GIANLUIGI EZIO, Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J, Badalov, A, Baesso, C, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Borsato, M, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brodzicka, J, Brook, N, Brown, H, Bursche, A, Buytaert, J, Cadeddu, S, Calabrese, R, Calvi, M, Calvo Gomez, M, Campana, P, Campora Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cassina, L, Castillo Garcia, L, Cattaneo, M, Cauet, C, Cenci, R, Charles, M, Charpentier, P, Chefdeville, M, Chen, S, Cheung, S, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coco, V, Cogan, J, Cogneras, E, Cogoni, V, Cojocariu, L, Collazuol, G, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Corvo, M, Counts, I, Couturier, B, Cowan, G, Craik, D, Crocombe, A, Cruz Torres, M, Cunliffe, S, Currie, R, D'Ambrosio, C, Dalseno, J, David, P, Davis, A, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Déĺeage, N, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Donleavy, S, Dordei, F, Dorigo, M, Dosil Súarez, A, Dossett, D, Dovbnya, A, Dreimanis, K, Dujany, G, Dupertuis, F, Durante, P, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Ely, S, Esen, S, Evans, H, Evans, T, Falabella, A, Färber, C, Farinelli, C, Farley, N, Farry, S, Fay, R, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fiore, M, Fiorini, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, Fol, P, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Fu, J, Furfaro, E, Gallas Torreira, A, Galli, D, Gallorini, S, Gambetta, S, Gandelman, M, Gandini, P, Gao, Y, Garćia Pardiñas, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gavardi, L, Geraci, A, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gianelle, A, Giani, S, Gibson, V, Giubega, L, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gotti, C, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graverini, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Griffith, P, Grillo, L, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hamilton, B, Hampson, T, Han, X, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, He, J, Head, T, Heijne, V, Hennessy, K, Henrard, P, Henry, L, Hernando Morata, J, Van Herwijnen, E, Heß, M, Hicheur, A, Hill, D, Hoballah, M, Hombach, C, Hulsbergen, W, Hunt, P, Hussain, N, Hutchcroft, D, Hynds, D, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jalocha, J, Jans, E, Jaton, P, Jawahery, A, Jing, F, John, M, Johnson, D, Jones, C, Joram, C, Jost, B, Jurik, N, Kandybei, S, Kanso, W, Karacson, M, Karbach, T, Karodia, S, Kelsey, M, Kenyon, I, Ketel, T, Khanji, B, Khurewathanakul, C, Klaver, S, Klimaszewski, K, Kochebina, O, Kolpin, M, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kurek, K, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanfranchi, G, Langenbruch, C, Langhans, B, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefraņcois, J, Leo, S, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Likhomanenko, T, Liles, M, Lindner, R, Linn, C, Lionetto, F, Liu, B, Lohn, S, Longstaff, I, Lopes, J, Lopez March, N, Lowdon, P, Lucchesi, D, Luo, H, Lupato, A, Luppi, E, Lupton, O, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Malinin, A, Manca, G, Mancinelli, G, Mapelli, A, Maratas, J, Marchand, J, Marconi, U, Marin Benito, C, Marino, P, Märki, R, Marks, J, Martellotti, G, Martens, A, Martín ͆anchez, A, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Martins Tostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Mazurov, A, Mccann, M, Mccarthy, J, Mcnab, A, Mcnulty, R, Mcskelly, B, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Moggi, N, Molina Rodriguez, J, Monteil, S, Morandin, M, Morawski, P, Mordà, A, Morello, M, Moron, J, Morris, A, Mountain, R, Muheim, F, Müller, K, Mussini, M, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neuner, M, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Novoselov, A, O'Hanlon, D, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Onderwater, C, Orlandea, M, Otalora Goicochea, J, Owen, P, Oyanguren, A, Pal, B, Palano, A, Palombo, F, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Pappalardo, L, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perret, P, Perrin Terrin, M, Pescatore, L, Pesen, E, Pessina, G, Petridis, K, Petrolini, A, Picatoste Olloqui, E, Pietrzyk, B, Pilar, T, Pinci, D, Pistone, A, Playfer, S, Plo Casasus, M, Polci, F, Poluektov, A, Polyakov, I, Polycarpo, E, Popov, A, Popov, D, Popovici, B, Potterat, C, Price, E, Price, J, Prisciandaro, J, Pritchard, A, Prouve, C, Pugatch, V, Puig Navarro, A, Punzi, G, Qian, W, Rachwal, B, Rademacker, J, Rakotomiaramanana, B, Rama, M, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redi, F, Reichert, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, S, Rihl, M, Rinnert, K, Rives Molina, V, Robbe, P, Rodrigues, A, Rodrigues, E, Rodriguez Perez, P, Roiser, S, Romanovsky, V, Romero Vidal, A, Rotondo, M, Rouvinet, J, Ruf, T, Ruiz, H, Ruiz Valls, P, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salustino Guimaraes, V, Sanchez Mayordomo, C, Sanmartin Sedes, B, Santacesaria, R, Santamarina Rios, C, Santovetti, E, Sarti, A, Satriano, C, Satta, A, Saunders, D, Savrina, D, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Semennikov, A, Sepp, I, Serra, N, Serrano, J, Sestini, L, Seyfert, P, Shapkin, M, Shapoval, I, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, V, Shires, A, Silva Coutinho, R, Simi, G, Sirendi, M, Skidmore, N, Skillicorn, I, Skwarnicki, T, Smith, N, Smith, E, Smith, J, Smith, M, Snoek, H, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Sridharan, S, Stagni, F, Stahl, M, Stahl, S, Steinkamp, O, Stenyakin, O, Stevenson, S, Stoica, S, Stone, S, Storaci, B, Stracka, S, Straticiuc, M, Straumann, U, Stroili, R, Subbiah, V, Sun, L, Sutcliffe, W, Swientek, K, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Tellarini, G, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubeda Garcia, M, Ukleja, A, Ustyuzhanin, A, Uwer, U, Vacca, C, Vagnoni, V, Valenti, G, Vallier, A, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vieites Diaz, M, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, De Vries, J, Waldi, R, Wallace, C, Wallace, R, Walsh, J, Wandernoth, S, Wang, J, Ward, D, Watson, N, Websdale, D, Whitehead, M, Wicht, J, Wiedner, D, Wilkinson, G, Williams, M, Wilschut, H, Wilson, F, Wimberley, J, Wishahi, J, Wislicki, W, Witek, M, Wormser, G, Wotton, S, Wright, S, Wyllie, K, Xie, Y, Xing, Z, Xu, Z, Yang, Z, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A, Zvyagin, A., CALVI, MARTA, CASSINA, LORENZO, GOTTI, CLAUDIO, GRILLO, LUCIA, KHANJI, BASEM, KUCHARCZYK, MARCIN, MATTEUZZI, CLARA, and PESSINA, GIANLUIGI EZIO
Abstract: The LHCb detector is a forward spectrometer at the Large Hadron Collider (LHC) at CERN. The experiment is designed for precision measurements of CP violation and rare decays of beauty and charm hadrons. In this paper the performance of the various LHCb sub-detectors and the trigger system are described, using data taken from 2010 to 2012. It is shown that the design criteria of the experiment have been met. The excellent performance of the detector has allowed the LHCb collaboration to publish a wide range of physics results, demonstrating LHCb's unique role, both as a heavy flavour experiment and as a general purpose detector in the forward region.
Published: 2015

15. HOLMES: The electron capture decay of 163Ho to measure the electron neutrino mass with sub-eV sensitivity

Author: Alpert, B, Balata, M, Bennett, D, Biasotti, M, Boragno, C, Brofferio, C, Ceriale, V, Corsini, D, Day, P, De Gerone, M, Dressler, R, Faverzani, M, Ferri, E, Fowler, J, Gatti, F, Giachero, A, Hays Wehle, J, Heinitz, S, Hilton, G, Köster, U, Lusignoli, M, Maino, M, Mates, J, Nisi, S, Nizzolo, R, Nucciotti, A, Pessina, G, Pizzigoni, G, Puiu, P, Ragazzi, S, Reintsema, C, Gomes, M, Schmidt, D, Schumann, D, Sisti, M, Swetz, D, Terranova, F, Ullom, J, BROFFERIO, CHIARA, DAY, PETER KENNETH, FAVERZANI, MARCO, FERRI, ELENA, GIACHERO, ANDREA, MAINO, MATTEO, NIZZOLO, RICCARDO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, PUIU, PAUL ANDREI, RAGAZZI, STEFANO, SISTI, MONICA, TERRANOVA, FRANCESCO, Ullom, J., Alpert, B, Balata, M, Bennett, D, Biasotti, M, Boragno, C, Brofferio, C, Ceriale, V, Corsini, D, Day, P, De Gerone, M, Dressler, R, Faverzani, M, Ferri, E, Fowler, J, Gatti, F, Giachero, A, Hays Wehle, J, Heinitz, S, Hilton, G, Köster, U, Lusignoli, M, Maino, M, Mates, J, Nisi, S, Nizzolo, R, Nucciotti, A, Pessina, G, Pizzigoni, G, Puiu, P, Ragazzi, S, Reintsema, C, Gomes, M, Schmidt, D, Schumann, D, Sisti, M, Swetz, D, Terranova, F, Ullom, J, BROFFERIO, CHIARA, DAY, PETER KENNETH, FAVERZANI, MARCO, FERRI, ELENA, GIACHERO, ANDREA, MAINO, MATTEO, NIZZOLO, RICCARDO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, PUIU, PAUL ANDREI, RAGAZZI, STEFANO, SISTI, MONICA, TERRANOVA, FRANCESCO, and Ullom, J.
Abstract: The European Research Council has recently funded HOLMES, a new experiment to directly measure the neutrino mass. HOLMES will perform a calorimetric measurement of the energy released in the decay of 163Ho. The calorimetric measurement eliminates systematic uncertainties arising from the use of external beta sources, as in experiments with beta spectrometers. This measurement was proposed in 1982 by A. De Rujula and M. Lusignoli, but only recently the detector technological progress allowed to design a sensitive experiment. HOLMES will deploy a large array of low temperature microcalorimeters with implanted 163Ho nuclei. The resulting mass sensitivity will be as low as 0.4 eV. HOLMES will be an important step forward in the direct neutrino mass measurement with a calorimetric approach as an alternative to spectrometry. It will also establish the potential of this approach to extend the sensitivity down to 0.1 eV. We outline here the project with its technical challenges and perspectives.
Published: 2015

16. Large area Si low-temperature light detectors with Neganov–Luke effect

Author: Biassoni, M, Brofferio, C, Capelli, S, Cassina, L, Clemenza, M, Cremonesi, O, Faverzani, M, Ferri, E, Giachero, A, Gironi, L, Giordano, C, Gotti, C, Maino, M, Margesin, B, Nucciotti, A, Pavan, M, Pessina, G, Previtali, E, Puiu, P, Sisti, M, Terranova, F, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CASSINA, LORENZO, CLEMENZA, MASSIMILIANO, CREMONESI, OLIVIERO, FAVERZANI, MARCO, FERRI, ELENA, GIACHERO, ANDREA, GIRONI, LUCA, GIORDANO, CLAUDIA, GOTTI, CLAUDIO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, PREVITALI, EZIO, PUIU, PAUL ANDREI, SISTI, MONICA, TERRANOVA, FRANCESCO, Biassoni, M, Brofferio, C, Capelli, S, Cassina, L, Clemenza, M, Cremonesi, O, Faverzani, M, Ferri, E, Giachero, A, Gironi, L, Giordano, C, Gotti, C, Maino, M, Margesin, B, Nucciotti, A, Pavan, M, Pessina, G, Previtali, E, Puiu, P, Sisti, M, Terranova, F, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CASSINA, LORENZO, CLEMENZA, MASSIMILIANO, CREMONESI, OLIVIERO, FAVERZANI, MARCO, FERRI, ELENA, GIACHERO, ANDREA, GIRONI, LUCA, GIORDANO, CLAUDIA, GOTTI, CLAUDIO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, PREVITALI, EZIO, PUIU, PAUL ANDREI, SISTI, MONICA, and TERRANOVA, FRANCESCO
Abstract: Next generation calorimetric experiments for the search of rare events rely on the detection of tiny amounts of light (of the order of 20 optical photons) to discriminate and reduce background sources and improve sensitivity. Calorimetric detectors are the simplest solution for photon detection at cryogenic (mK) temperatures. The development of silicon based light detectors with enhanced performance thanks to the use of the Neganov–Luke effect is described. The aim of this research line is the production of high performance detectors with industrial-grade reproducibility and reliability.
Published: 2015

17. A technique for noise measurement optimization with spectrum analyzers

Author: Carniti, P, Cassina, L, Gotti, C, Maino, M, Pessina, G, CARNITI, PAOLO, CASSINA, LORENZO, GOTTI, CLAUDIO, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, Carniti, P, Cassina, L, Gotti, C, Maino, M, Pessina, G, CARNITI, PAOLO, CASSINA, LORENZO, GOTTI, CLAUDIO, MAINO, MATTEO, and PESSINA, GIANLUIGI EZIO
Abstract: Measuring low noise of electronic devices with a spectrum analyzer requires particular care as the instrument could add significant contributions. A Low Noise Amplifier, LNA, is therefore necessary to be connected between the source to be measured and the instrument, to mitigate its effect at the LNA input. In the present work we suggest a technique for the implementation of the LNA that allows to optimize both low frequency noise and white noise, obtaining outstanding performance in a very broad frequency range.
Published: 2015

18. Neutrinoless double-beta decay search with CUORE and CUORE-0 experiments

Author: Fabbri, F, Giacomelli, P, Moggi, N, Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Cai, X, Camacho, A, Caminata, A, Canonica, L, Cao, X, Capelli, S, Cappelli, L, Carbone, L, Cardani, L, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, R, Cushman, J, Dafinei, I, Dally, A, Datskov, V, Dell'Oro, S, Deninno, M, Di Domizio, S, Di Vacri, M, Drobizhev, A, Ejzak, L, Fang, D, Farach, H, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Heeger, K, Hennings Yeomans, R, Hickerson, K, Huang, H, Kadel, R, Keppel, G, Kolomensky, Y, Li, Y, Ligi, C, Lim, K, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Morganti, S, Napolitano, T, Nisi, S, Nones, C, Norman, E, Nucciotti, A, O'Donnell, T, Orio, F, Orlandi, D, Ouellet, J, Pagliarone, C, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Santone, D, Scielzo, N, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Wielgus, L, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhang, G, Zhu, B, Zucchelli, S, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CASSINA, LORENZO, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, FAVERZANI, MARCO, FERRI, ELENA, FIORINI, ETTORE, GIACHERO, ANDREA, GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, POZZI, STEFANO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, ZANOTTI, LUIGI ERNESTO, Zucchelli, S., Fabbri, F, Giacomelli, P, Moggi, N, Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Cai, X, Camacho, A, Caminata, A, Canonica, L, Cao, X, Capelli, S, Cappelli, L, Carbone, L, Cardani, L, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, R, Cushman, J, Dafinei, I, Dally, A, Datskov, V, Dell'Oro, S, Deninno, M, Di Domizio, S, Di Vacri, M, Drobizhev, A, Ejzak, L, Fang, D, Farach, H, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Heeger, K, Hennings Yeomans, R, Hickerson, K, Huang, H, Kadel, R, Keppel, G, Kolomensky, Y, Li, Y, Ligi, C, Lim, K, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Morganti, S, Napolitano, T, Nisi, S, Nones, C, Norman, E, Nucciotti, A, O'Donnell, T, Orio, F, Orlandi, D, Ouellet, J, Pagliarone, C, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Santone, D, Scielzo, N, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Wielgus, L, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhang, G, Zhu, B, Zucchelli, S, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CASSINA, LORENZO, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, FAVERZANI, MARCO, FERRI, ELENA, FIORINI, ETTORE, GIACHERO, ANDREA, GIRONI, LUCA, GOTTI, CLAUDIO, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, POZZI, STEFANO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, ZANOTTI, LUIGI ERNESTO, and Zucchelli, S.
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is an upcoming experiment designed to search for the neutrinoless double-beta decays. Observation of the process would unambiguously establish that neutrinos are Majorana particles and provide information on their absolute mass scale hierarchy. CUORE is now under construction and will consist of an array of 988 TeO2crystal bolometers operated at 10 mK, but the first tower (CUORE-0) is already taking data. The experimental techniques used will be presented as well as the preliminary CUORE-0 results. The current status of the full-mass experiment and its expected sensitivity will then be discussed.
Published: 2015

19. HOLMES, an experiment for a direct measurement of neutrino mass

Author: Puiu, P, Alpert, B, Balata, M, Bennett, D, Biasotti, M, Boragno, C, Brofferio, C, Ceriale, V, Corsini, D, Day, P, De Gerone, M, Dressler, R, Faverzani, M, Ferri, E, Fowler, J, Gatti, F, Giachero, A, Hays Wehle, J, Heinitz, S, Hilton, G, Köster, U, Lusignoli, M, Maino, M, Mates, J, Nisi, S, Nizzolo, R, Nucciotti, A, Pessina, G, Pizzigoni, G, Ragazzi, S, Reintsema, C, Gomez, M, Schmidt, D, Schumann, D, Sisti, M, Swetz, D, Terranova, F, Ullom, J, PUIU, PAUL ANDREI, BROFFERIO, CHIARA, FAVERZANI, MARCO, FERRI, ELENA, GIACHERO, ANDREA, MAINO, MATTEO, NIZZOLO, RICCARDO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, RAGAZZI, STEFANO, SISTI, MONICA, TERRANOVA, FRANCESCO, Ullom, J., Puiu, P, Alpert, B, Balata, M, Bennett, D, Biasotti, M, Boragno, C, Brofferio, C, Ceriale, V, Corsini, D, Day, P, De Gerone, M, Dressler, R, Faverzani, M, Ferri, E, Fowler, J, Gatti, F, Giachero, A, Hays Wehle, J, Heinitz, S, Hilton, G, Köster, U, Lusignoli, M, Maino, M, Mates, J, Nisi, S, Nizzolo, R, Nucciotti, A, Pessina, G, Pizzigoni, G, Ragazzi, S, Reintsema, C, Gomez, M, Schmidt, D, Schumann, D, Sisti, M, Swetz, D, Terranova, F, Ullom, J, PUIU, PAUL ANDREI, BROFFERIO, CHIARA, FAVERZANI, MARCO, FERRI, ELENA, GIACHERO, ANDREA, MAINO, MATTEO, NIZZOLO, RICCARDO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, RAGAZZI, STEFANO, SISTI, MONICA, TERRANOVA, FRANCESCO, and Ullom, J.
Abstract: The European Research Council has recently founded HOLMES, an experiment for a direct neutrino mass measurement with a sensitivity as low as 0.4 eV. HOLMES will perform a calorimetric measurement of the the energy released in the Electron Capture (EC) spectrum of 163Ho. The neutrino mass is assessed from the end point of the spectrum; the sensitivity on the mass is strongly dependent on the exact value of the end point, still not precisely known, and on background due to pile up in the region of interest. In the following lines we present an overview of the whole project and its major challenges.
Published: 2015

20. The Status of the MARE Experiment with 187Re and 163Ho Isotopes

Author: Ferri, E, Bagliani, D, Biasotti, M, Ceruti, G, Corsini, D, Faverzani, M, Gatti, F, Giachero, A, Gotti, C, Kilbourne, C, Kling, A, Maino, M, Manfrinetti, P, Nucciotti, A, Pessina, G, Pizzigoni, G, Gomes, M, Sisti, M, FERRI, ELENA, FAVERZANI, MARCO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, SISTI, MONICA, Ferri, E, Bagliani, D, Biasotti, M, Ceruti, G, Corsini, D, Faverzani, M, Gatti, F, Giachero, A, Gotti, C, Kilbourne, C, Kling, A, Maino, M, Manfrinetti, P, Nucciotti, A, Pessina, G, Pizzigoni, G, Gomes, M, Sisti, M, FERRI, ELENA, FAVERZANI, MARCO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, and SISTI, MONICA
Abstract: Neutrino oscillation experiments have proved that neutrinos are massive particles but the assessment of their absolute mass scale is still an outstanding challenge in today particle physics and cosmology. The laboratory experiments dedicated to effective electron-neutrino mass determination are the ones based on the study of single beta decay or electron capture (EC) decay. Exploiting only on energy-momentum conservation, this kinematic measurement is the only one which permits to estimate neutrino masses without theoretical assumptions on neutrino nature and it is truly model-independent. To date the most competitive isotopes for a calorimetric measurement of the neutrino mass are 187Re and 163Ho. While the first decays beta, the latter decays via electron capture, and both have a Q-value around 2.5 keV. The measurement of 163Ho EC is an appealing alternative to the 187Re beta decay measurement because few nuclei are needed and it is a self-calibrating measurement. In this context the MARE project, based on rhenium thermal detectors has been born. We report here the status of MARE in Milan with Rhenium and the activity concerning the production of radioactive 163Ho isotope in the framework of MARE.
Published: 2015

21. First neutrinoless double beta decay results from CUORE-0

Author: Civitarese, O, Stekl, I, Suhonen, J, Gironi, L, Alduino, C, Alfonso, K, Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, X, Capelli, S, Cappelli, L, Carbone, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, R, Cushman, J, Dafinei, I, Dally, A, Davis, C, Dell'Oro, S, Deninno, M, Di Domizio, S, Di Vacri, M, Drobizhev, A, Fang, D, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Hansen, E, Heeger, K, Hennings Yeomans, R, Hickerson, K, Huang, H, Kadel, R, Keppel, G, Kolomensky, Y, Ligi, C, Lim, K, Liu, X, Ma, Y, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nisi, S, Nones, C, Norman, E, Nucciotti, A, O'Donnell, T, Orio, F, Orlandi, D, Ouellet, J, Pagliarone, C, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Santone, D, Scielzo, N, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wagaarachchi, S, Wang, B, Wang, H, Wielgus, L, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhang, G, Zhu, B, Zimmermann, S, Zucchelli, S, GIRONI, LUCA, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CARNITI, PAOLO, CASSINA, LORENZO, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, CREMONESI, OLIVIERO, FAVERZANI, MARCO, FERRI, ELENA, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, POZZI, STEFANO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, Zucchelli, S., Civitarese, O, Stekl, I, Suhonen, J, Gironi, L, Alduino, C, Alfonso, K, Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, X, Capelli, S, Cappelli, L, Carbone, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, R, Cushman, J, Dafinei, I, Dally, A, Davis, C, Dell'Oro, S, Deninno, M, Di Domizio, S, Di Vacri, M, Drobizhev, A, Fang, D, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Hansen, E, Heeger, K, Hennings Yeomans, R, Hickerson, K, Huang, H, Kadel, R, Keppel, G, Kolomensky, Y, Ligi, C, Lim, K, Liu, X, Ma, Y, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nisi, S, Nones, C, Norman, E, Nucciotti, A, O'Donnell, T, Orio, F, Orlandi, D, Ouellet, J, Pagliarone, C, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Santone, D, Scielzo, N, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wagaarachchi, S, Wang, B, Wang, H, Wielgus, L, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhang, G, Zhu, B, Zimmermann, S, Zucchelli, S, GIRONI, LUCA, BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CARNITI, PAOLO, CASSINA, LORENZO, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, CREMONESI, OLIVIERO, FAVERZANI, MARCO, FERRI, ELENA, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, POZZI, STEFANO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, and Zucchelli, S.
Abstract: The CUORE-0 experiment, a 52 bolometer array searching for neutrinoless double beta decay from 130Te, has started taking data in spring 2013 underground at the Laboratori Nazionali del Gran Sasso (LNGS). The excellent results obtained in terms of energy resolution and background level allowed this experiment to reach the sensitivity of Cuoricino in approximately half the runtime. Combining CUORE-0 data (9.8 kg·yr exposure of 130Te) with the 19.75 kg·yr exposure of the Cuoricino experiment, we obtain the most stringent limit to date on the half-life of this isotope (T1/2 > 4.0 × 1024 yr). In this article, we review the results from CUORE-0 and discuss the status and the physics potential of CUORE, a 19 times larger bolometer array that plans to begin operations by end of this year.
Published: 2015

22. Characterization of the Hamamatsu H12700A-03 and R12699-03 multi-anode photomultiplier tubes

Author: Calvi, M, Carniti, P, Cassina, L, Gotti, C, Maino, M, Matteuzzi, C, Pessina, G, CALVI, MARTA, CARNITI, PAOLO, CASSINA, LORENZO, GOTTI, CLAUDIO, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, Calvi, M, Carniti, P, Cassina, L, Gotti, C, Maino, M, Matteuzzi, C, Pessina, G, CALVI, MARTA, CARNITI, PAOLO, CASSINA, LORENZO, GOTTI, CLAUDIO, MAINO, MATTEO, and PESSINA, GIANLUIGI EZIO
Abstract: The H12700 is a novel 64-channel 52 × 52 mm2 square Multi-Anode PhotoMultiplier Tube (MaPMT) produced by Hamamatsu. Its characteristics make this device suitable for high energy physics applications, such as in Ring Imaging Cherenkov (RICH) detectors. Hamamatsu provides the H12700 tube with an embedded socket connecting the anodes to the output pins and including an active voltage divider. A second device version, the R12699, is also available and differs from the former by the absence of the socket. This paper describes a complete characterization of both models, starting from the standard operating parameters (single photon spectra, average gain, anode uniformity and dark current value), investigating in detail the cross-talk effect among neighbouring pixels and considering the behaviour in critical environment conditions, such as in presence of a static magnetic field up to 100 Gauss, at different operating temperatures and after long exposure to intense light.
Published: 2015

23. First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV

Author: Aguilar, M, Alberti, G, Alpat, B, Alvino, A, Ambrosi, G, Andeen, K, Anderhub, H, Arruda, L, Azzarello, P, Bachlechner, A, Barao, F, Baret, B, Barrau, A, Barrin, L, Bartoloni, A, Basara, L, Basili, A, Batalha, L, Bates, J, Battiston, R, Bazo, J, Becker, R, Becker, U, Behlmann, M, Beischer, B, Berdugo, J, Berges, P, Bertucci, B, Bigongiari, G, Biland, A, Bindi, V, Bizzaglia, S, de Boer, W, Bollweg, K, Bolmont, J, Borgia, B. Borsini, S, Boschini, MJ, Boudoul, G, Bourquin, M, Brun, P, Buenerd, M, Burger, J, Burger, W, Cadoux, F, Cai, XD, Capell, M, Casadei, D, Casaus, J, Cascioli, V, Castellini, G, Cernuda, I, Cervelli, F, Chae, MJ, Chang, YH, Chen, AI, Chen, CR, Chen, H, Cheng, GM, Chen, HS, Cheng, L, Chernoplyiokov, N, Chikanian, A, Choumilov, E, Choutko, V, Chung, CH, Clark, C, Clavero, R, Coignet, G, Commichau, V, Consolandi, C, Contin, A, Corti, C, Dios, MT, Costado Coste, B, Crespo, D, Cui, Z, Dai, M, Delgado, C, Della Torre, S, Demirkoz, B, Dennett, P, Derome, L, Di Falco, S, Diao, XH, Diago, A, Djambazov, L, Diaz, C, von Doetinchem, P, Du, WJ, Dubois, JM, Duperay, R, Duranti, M, D'Urso, D, Egorov, A, Eline, A, Eppling, FJ, Eronen, T, van Es, J, Esser, H, Falvard, A, Fiandrini, E, Fiasson, A, Finch, E, Fisher, P, Flood, K, Foglio, R, Fohey, M, Fopp, S, Fouque, N, Galaktionov, Y, Gallilee, M, Gallin Martel, L, Gallucci, G, Garcia, B, Garcia, J, Garcia Lopez, R, Garcia Tabares, L, Gargiulo, C, Gast, H, Gebauer, I, Gentile, S, Gillard, W, Giovacchini, F, Girard, L, Goglov, P, Gong, J, Goy Henningsen, C, Grandi, D, Graziani, M, Grechko, A, Gross, A, Guerri, I, de la Guia, C, Guo, KH, Habiby, M, Haino, S, Hauler, F, He, ZH, Heil, M, Heilig, J, Hermel, R, Hofer, H, Huang, ZC, Hungerford, W, Incagli, M, Ionica, M, Jacholkowska, A, Jang, WY, Jinchi, H, Jongmanns, M, Journet, L, Jungermann, L, Karpinski, W, Kim, GN, Kim, KS, Kirn, Th, Kossakowski, R, Koulemzine, A, Kounina, O, Kounine, A, Koutsenko, V, Krafczyk, MS, Laudi, E, Laurenti, G, Lauritzen, C, Lebedev, A, Lee, MW, Lee, SC, Leluc, C, Vargas, HL, Lepareur, V, Li, JQ, Li, Q, Li, TX, Li, W, Li, ZH, Lipari, P, Lin, CH, Liu, D, Liu, H, Lomtadze, T, Lu, YS, Lucidi, S, Luebelsmeyer, K, Luo, JZ, Lustermann, W, Lv, S, Madsen, J, Majka, R, Malinin, A, Mana, C, Marin, J, Martin, T, Martinez, G, Masciocchi, F, Masi, N, Maurin, D, McInturff, A, McIntyre, P, Menchaca Rocha, A, Meng, Q, Menichelli, M, Mereu, I, Millinger, M, Mo, DC, Molina, M, Mott, P, Mujunen, A, Natale, S, Nemeth, P, Ni, JQ, Nikonov, N, Nozzoli, F, Nunes, P, Obermeier, A, Oh, S, Oliva, A, Palmonari, F, Palomares, C, Paniccia, M, Papi, A, Park, WH, Pauluzzi, M, Pauss, F, Pauw, A, Pedreschi, E, Pereira, R, Perrin, E, Pierschel, G, Pilo, F, Piluso, A, Pizzolotto, C, Plyaskin, V, Pochon, J, Pohl, M, Poireau, V, Porter, S, Pouxe, J, Putze, A, Quadrani, L, Qi, XN, Rancoita, PG, Rapin, D, Ren, ZL, Ricol, JS, Riihonen, E, Rodriguez, I, Roeser, U, Rosier Lees, S, Rossi, L, Rozhkov, A, ROZZA, DAVIDE, Sabellek, A, Sagdeev, R, Sandweiss, J, Santos, B, Saouter, P, Sarchioni, M, Schael, S, Schinzel, D, Schmanau, M, Schwering, G, von Dratzig, AS, Scolieri, G, Seo, ES, Shan, BS, Shi, JY, Shi, YM, Siedenburg, T, Siedling, R, Son, D, Spada, F, Spinella, F, Steuer, M, Stiff, K, Sun, W, Sun, WH, Sun, XH, Tang, CP, Tang, XW, Tang, ZC, Tao, L, Tassan Viol, J, Ting, Samuel CC, Ting, SM, Titus, C, Tomassetti, N, Toral, F, Torsti, J, Tsai, JR, Tutt, JC, Ulbricht, J, Urban, T, Vagelli, V, Valente, E, Vannini, C, Valtonen, E, Trevino, MV, Vaurynovich, S, Vecchi, M, Vergain, M, Verlaat, B, Vescovi, C, Vialle, JP, Viertel, G, Volpini, G, Wang, D, Wang, NH, Wang, QL, Wang, RS, Wang, X, Wang, ZX, Wallraff, W, Weng, ZL, Willenbrock, M, Wlochal, M, Wu, H, Wu, KY, Wu, ZS, Xiao, WJ, Xie, S, Xiong, RQ, Xin, GM, Xu, NS, Xu, W, Yan, Q, Yang, J, Yang, M, Ye, QH, Yi, H, Yu, YJ, Yu, ZQ, Zeissler, S, Zhang, JG, Zhang, Z, Zhang, MM, Zheng, ZM, Zhuang, HL, Zhukov, V, Zichichi, A, Zuccon, P, Zurbach, C., BOELLA, GIULIANO FILIPPO, GERVASI, MASSIMO, PENSOTTI, SIMONETTA, PESSINA, GIANLUIGI EZIO, TACCONI, MAURO, M. Aguilar, G. Alberti, B. Alpat, A. Alvino, G. Ambrosi, K. Andeen, H. Anderhub, L. Arruda, P. Azzarello, A. Bachlechner, F. Barao, B. Baret, A. Barrau, L. Barrin, A. Bartoloni, L. Basara, A. Basili, L. Batalha, J. Bate, R. Battiston, J. Bazo, R. Becker, U. Becker, M. Behlmann, B. Beischer, J. Berdugo, P. Berge, B. Bertucci, G. Bigongiari, A. Biland, V. Bindi, S. Bizzaglia, G. Boella, W. de Boer, K. Bollweg, J. Bolmont, B. Borgia, S. Borsini, M. J. Boschini, G. Boudoul, M. Bourquin, P. Brun, M. Buénerd, J. Burger, W. Burger, F. Cadoux, X. D. Cai, M. Capell, D. Casadei, J. Casau, V. Cascioli, G. Castellini, I. Cernuda, F. Cervelli, M. J. Chae, Y. H. Chang, A. I. Chen, C. R. Chen, H. Chen, G. M. Cheng, H. S. Chen, L. Cheng, N. Chernoplyiokov, A. Chikanian, E. Choumilov, V. Choutko, C. H. Chung, C. Clark, R. Clavero, G. Coignet, V. Commichau, C. Consolandi, A. Contin, C. Corti, M. T. Costado Dio, B. Coste, D. Crespo, Z. Cui, M. Dai, C. Delgado, S. Della Torre, B. Demirkoz, P. Dennett, L. Derome, S. Di Falco, X. H. Diao, A. Diago, L. Djambazov, C. Díaz, P. von Doetinchem, W. J. Du, J. M. Duboi, R. Duperay, M. Duranti, D. D’Urso, A. Egorov, A. Eline, F. J. Eppling, T. Eronen, J. van E, H. Esser, A. Falvard, E. Fiandrini, A. Fiasson, E. Finch, P. Fisher, K. Flood, R. Foglio, M. Fohey, S. Fopp, N. Fouque, Y. Galaktionov, M. Gallilee, L. Gallin-Martel, G. Gallucci, B. García, J. García, R. García-López, L. García-Tabare, C. Gargiulo, H. Gast, I. Gebauer, S. Gentile, M. Gervasi, W. Gillard, F. Giovacchini, L. Girard, P. Goglov, J. Gong, C. Goy-Henningsen, D. Grandi, M. Graziani, A. Grechko, A. Gro, I. Guerri, C. de la Guía, K. H. Guo, M. Habiby, S. Haino, F. Hauler, Z. H. He, M. Heil, J. Heilig, R. Hermel, H. Hofer, Z. C. Huang, W. Hungerford, M. Incagli, M. Ionica, A. Jacholkowska, W. Y. Jang, H. Jinchi, M. Jongmann, L. Journet, L. Jungermann, W. Karpinski, G. N. Kim, K. S. Kim, Th. Kirn, R. Kossakowski, A. Koulemzine, O. Kounina, A. Kounine, V. Koutsenko, M. S. Krafczyk, E. Laudi, G. Laurenti, C. Lauritzen, A. Lebedev, M. W. Lee, S. C. Lee, C. Leluc, H. León Varga, V. Lepareur, J. Q. Li, Q. Li, T. X. Li, W. Li, Z. H. Li, P. Lipari, C. H. Lin, D. Liu, H. Liu, T. Lomtadze, Y. S. Lu, S. Lucidi, K. Lübelsmeyer, J. Z. Luo, W. Lustermann, S. Lv, J. Madsen, R. Majka, A. Malinin, C. Mañá, J. Marín, T. Martin, G. Martínez, F. Masciocchi, N. Masi, D. Maurin, A. McInturff, P. McIntyre, A. Menchaca-Rocha, Q. Meng, M. Menichelli, I. Mereu, M. Millinger, D. C. Mo, M. Molina, P. Mott, A. Mujunen, S. Natale, P. Nemeth, J. Q. Ni, N. Nikonov, F. Nozzoli, P. Nune, A. Obermeier, S. Oh, A. Oliva, F. Palmonari, C. Palomare, M. Paniccia, A. Papi, W. H. Park, M. Pauluzzi, F. Pau, A. Pauw, E. Pedreschi, S. Pensotti, R. Pereira, E. Perrin, G. Pessina, G. Pierschel, F. Pilo, A. Piluso, C. Pizzolotto, V. Plyaskin, J. Pochon, M. Pohl, V. Poireau, S. Porter, J. Pouxe, A. Putze, L. Quadrani, X. N. Qi, P. G. Rancoita, D. Rapin, Z. L. Ren, J. S. Ricol, E. Riihonen, I. Rodríguez, U. Roeser, S. Rosier-Lee, L. Rossi, A. Rozhkov, D. Rozza, A. Sabellek, R. Sagdeev, J. Sandwei, B. Santo, P. Saouter, M. Sarchioni, S. Schael, D. Schinzel, M. Schmanau, G. Schwering, A. Schulz von Dratzig, G. Scolieri, E. S. Seo, B. S. Shan, J. Y. Shi, Y. M. Shi, T. Siedenburg, R. Siedling, D. Son, F. Spada, F. Spinella, M. Steuer, K. Stiff, W. Sun, W. H. Sun, X. H. Sun, M. Tacconi, C. P. Tang, X. W. Tang, Z. C. Tang, L. Tao, J. Tassan-Viol, Samuel C. C. Ting, S. M. Ting, C. Titu, N. Tomassetti, F. Toral, J. Torsti, J. R. Tsai, J. C. Tutt, J. Ulbricht, T. Urban, V. Vagelli, E. Valente, C. Vannini, E. Valtonen, M. Vargas Trevino, S. Vaurynovich, M. Vecchi, M. Vergain, B. Verlaat, C. Vescovi, J. P. Vialle, G. Viertel, G. Volpini, D. Wang, N. H. Wang, Q. L. Wang, R. S. Wang, X. Wang, Z. X. Wang, W. Wallraff, Z. L. Weng, M. Willenbrock, M. Wlochal, H. Wu, K. Y. Wu, Z. S. Wu, W. J. Xiao, S. Xie, R. Q. Xiong, G. M. Xin, N. S. Xu, W. Xu, Q. Yan, J. Yang, M. Yang, Q. H. Ye, H. Yi, Y. J. Yu, Z. Q. Yu, S. Zeissler, J. G. Zhang, Z. Zhang, M. M. Zhang, Z. M. Zheng, H. L. Zhuang, V. Zhukov, A. Zichichi, P. Zuccon, C. Zurbach, Azzarello, Philipp, Bourquin, Maurice, Cadoux, Franck, Habiby Alaoui, Marion, Leluc, Catherine, Masciocchi, Florian, Paniccia, Mercedes, Perrin, Eric, Pohl, Martin, Rapin, Divic Jean, Saouter, Pierre, Metsähovi Radio Observatory, Aalto-yliopisto, Aalto University, OpenMETU, CERN [Genève], Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (INFN, Sezione di Perugia), Istituto Nazionale di Fisica Nucleare (INFN), Karlsruhe Institute of Technology (KIT), Institute for Theoretical Physics [ETH Zürich] (ITP), Department of Physics [ETH Zürich] (D-PHYS), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich)- Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), RWTH Aachen University, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Massachusetts Institute of Technology (MIT), Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Département de Physique Nucléaire et Corpusculaire [Genève] (DPNC), Université de Genève (UNIGE), Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (INFN, Sezione di Bologna), Instituto de Astrofisica de Canarias (IAC), Instituto de Matematicas (UNAM), Universidad Nacional Autónoma de México (UNAM), Istituto Nazionale di Fisica Nucleare [Sezione di Roma 1] (INFN), Istituto Nazionale di Fisica Nucleare, INFN Sezione di Pisa (INFN Sezione di Pisa), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), AMS, Aguilar, M, Alberti, G, Alpat, B, Alvino, A, Ambrosi, G, Andeen, K, Anderhub, H, Arruda, L, Azzarello, P, Bachlechner, A, Barao, F, Baret, B, Barrau, A, Barrin, L, Bartoloni, A, Basara, L, Basili, A, Batalha, L, Bates, J, Battiston, R, Bazo, J, Becker, R, Becker, U, Behlmann, M, Beischer, B, Berdugo, J, Berges, P, Bertucci, B, Bigongiari, G, Biland, A, Bindi, V, Bizzaglia, S, Boella, G, de Boer, W, Bollweg, K, Bolmont, J, Borgia, B., B, S, Boschini, M, Boudoul, G, Bourquin, M, Brun, P, Buenerd, M, Burger, J, Burger, W, Cadoux, F, Cai, X, Capell, M, Casadei, D, Casaus, J, Cascioli, V, Castellini, G, Cernuda, I, Cervelli, F, Chae, M, Chang, Y, Chen, A, Chen, C, Chen, H, Cheng, G, Cheng, L, Chernoplyiokov, N, Chikanian, A, Choumilov, E, Choutko, V, Chung, C, Clark, C, Clavero, R, Coignet, G, Commichau, V, Consolandi, C, Contin, A, Corti, C, Dios, M, Costado Coste, B, Crespo, D, Cui, Z, Dai, M, Delgado, C, Della Torre, S, Demirkoz, B, Dennett, P, Derome, L, Di Falco, S, Diao, X, Diago, A, Djambazov, L, Diaz, C, von Doetinchem, P, Du, W, Dubois, J, Duperay, R, Duranti, M, D'Urso, D, Egorov, A, Eline, A, Eppling, F, Eronen, T, van Es, J, Esser, H, Falvard, A, Fiandrini, E, Fiasson, A, Finch, E, Fisher, P, Flood, K, Foglio, R, Fohey, M, Fopp, S, Fouque, N, Galaktionov, Y, Gallilee, M, Gallin Martel, L, Gallucci, G, Garcia, B, Garcia, J, Garcia Lopez, R, Garcia Tabares, L, Gargiulo, C, Gast, H, Gebauer, I, Gentile, S, Gervasi, M, Gillard, W, Giovacchini, F, Girard, L, Goglov, P, Gong, J, Goy Henningsen, C, Grandi, D, Graziani, M, Grechko, A, Gross, A, Guerri, I, de la Guia, C, Guo, K, Habiby, M, Haino, S, Hauler, F, He, Z, Heil, M, Heilig, J, Hermel, R, Hofer, H, Huang, Z, Hungerford, W, Incagli, M, Ionica, M, Jacholkowska, A, Jang, W, Jinchi, H, Jongmanns, M, Journet, L, Jungermann, L, Karpinski, W, Kim, G, Kim, K, Kirn, T, Kossakowski, R, Koulemzine, A, Kounina, O, Kounine, A, Koutsenko, V, Krafczyk, M, Laudi, E, Laurenti, G, Lauritzen, C, Lebedev, A, Lee, M, Lee, S, Leluc, C, Vargas, H, Lepareur, V, Li, J, Li, Q, Li, T, Li, W, Li, Z, Lipari, P, Lin, C, Liu, D, Liu, H, Lomtadze, T, Lu, Y, Lucidi, S, Luebelsmeyer, K, Luo, J, Lustermann, W, Lv, S, Madsen, J, Majka, R, Malinin, A, Mana, C, Marin, J, Martin, T, Martinez, G, Masciocchi, F, Masi, N, Maurin, D, Mcinturff, A, Mcintyre, P, Menchaca Rocha, A, Meng, Q, Menichelli, M, Mereu, I, Millinger, M, Mo, D, Molina, M, Mott, P, Mujunen, A, Natale, S, Nemeth, P, Ni, J, Nikonov, N, Nozzoli, F, Nunes, P, Obermeier, A, Oh, S, Oliva, A, Palmonari, F, Palomares, C, Paniccia, M, Papi, A, Park, W, Pauluzzi, M, Pauss, F, Pauw, A, Pedreschi, E, Pensotti, S, Pereira, R, Perrin, E, Pessina, G, Pierschel, G, Pilo, F, Piluso, A, Pizzolotto, C, Plyaskin, V, Pochon, J, Pohl, M, Poireau, V, Porter, S, Pouxe, J, Putze, A, Quadrani, L, Qi, X, Rancoita, P, Rapin, D, Ren, Z, Ricol, J, Riihonen, E, Rodriguez, I, Roeser, U, Rosier Lees, S, Rossi, L, Rozhkov, A, Rozza, D, Sabellek, A, Sagdeev, R, Sandweiss, J, Santos, B, Saouter, P, Sarchioni, M, Schael, S, Schinzel, D, Schmanau, M, Schwering, G, von Dratzig, A, Scolieri, G, Seo, E, Shan, B, Shi, J, Shi, Y, Siedenburg, T, Siedling, R, Son, D, Spada, F, Spinella, F, Steuer, M, Stiff, K, Sun, W, Sun, X, Tacconi, M, Tang, C, Tang, X, Tang, Z, Tao, L, Tassan Viol, J, Ting, S, Titus, C, Tomassetti, N, Toral, F, Torsti, J, Tsai, J, Tutt, J, Ulbricht, J, Urban, T, Vagelli, V, Valente, E, Vannini, C, Valtonen, E, Trevino, M, Vaurynovich, S, Vecchi, M, Vergain, M, Verlaat, B, Vescovi, C, Vialle, J, Viertel, G, Volpini, G, Wang, D, Wang, N, Wang, Q, Wang, R, Wang, X, Wang, Z, Wallraff, W, Weng, Z, Willenbrock, M, Wlochal, M, Wu, H, Wu, K, Wu, Z, Xiao, W, Xie, S, Xiong, R, Xin, G, Xu, N, Xu, W, Yan, Q, Yang, J, Yang, M, Ye, Q, Yi, H, Yu, Y, Yu, Z, Zeissler, S, Zhang, J, Zhang, Z, Zhang, M, Zheng, Z, Zhuang, H, Zhukov, V, Zichichi, A, Zuccon, P, and Zurbach, C
Subjects: [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::High Energy Astrophysical Phenomena, education, Dark matter, General Physics and Astronomy, Electrons, Cosmic ray, ddc:500.2, Electron, 01 natural sciences, and other elementary particle detectors, cosmic ray detectors, Nuclear physics, Physics and Astronomy (all), Positron, cosmic rays, muon, Neutrino, 0103 physical sciences, Alpha Magnetic Spectrometer, 010306 general physics, Anisotropy, Physics, Range (particle radiation), ta115, ta213, ta114, Cosmic rays, positron fraction, space experiments, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], pion, Observable, energy spectra and interactions, pion, and other elementary particle detectors, ELECTRONS, cosmic rays, dark matter, Physics::Accelerator Physics, High Energy Physics::Experiment, Composition
Abstract: A precision measurement by the Alpha Magnetic Spectrometer on the International Space Station of the positron fraction in primary cosmic rays in the energy range from 0.5 to 350 GeV based on 6.8 x 10(6) positron and electron events is presented. The very accurate data show that the positron fraction is steadily increasing from 10 to similar to 250 GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude. The positron fraction spectrum shows no fine structure, and the positron to electron ratio shows no observable anisotropy. Together, these features show the existence of new physical phenomena. DOI: 10.1103/PhysRevLett.110.141102
Published: 2013

24. Precision measurement of the Bs-0 Bs 0 oscillation frequency with the decay Bs- 0→ Dsπ-+

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves Jr, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjornstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Campora Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fiore, M, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Lohn, S, Longstaff, I, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martins Tostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Maurice, E, Mazurov, A, Mccarthy, J, Mcnab, A, Mcnulty, R, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Morello, M, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Oyanguren, A, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, 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Subjects: Flavour Physics, Hadron Collider
Abstract: A key ingredient to searches for physics beyond the Standard Model in Bs-0 mixing phenomena is the measurement of the B s-0 oscillation frequency, which is equivalent to the mass difference Δms of the Bs-0 mass eigenstates. Using the world's largest Bs-0 meson sample accumulated in a dataset, corresponding to an integrated luminosity of 1.0 fb-1, collected by the LHCb experiment at the CERN LHC in 2011, a measurement of Δms is presented. A total of about 34 000 B s-0 → Dsπ-+ signal decays are reconstructed, with an average decay time resolution of 44 fs. The oscillation frequency is measured to be Δms = 17.768 ± 0.023 (stat) ± 0.006 (syst) ps-1, which is the most precise measurement to date. © CERN 2013 for the benefit of the LHCb Collaboration, published under the terms of the Creative Commons Attribution 3.0 licence by IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Any further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation and DOI..
Published: 2013

25. Measurement of CP Violation in the Phase Space of B+/- ->K+/-pi(+)pi(-) and B-+/- ->K+/-(K+K-) Decays

Author: Aaij, R, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amaton, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Andrews, J, Appleby, R, Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjornstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Garcia, L, Cattaneo, M, Cauet, C, Cenci, R, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, Davis, A, De Bonis, I, Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Deleage, N, Derkach, D, Deschamps, O, Dettori, F, Canto, A, Ruscio, F, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suarez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van 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Subjects: Heavy Flavour Physics, LHC Collider
Abstract: The charmless decays B-+/- -> K-+/-pi(+)pi(-) and B-+/- -> (K+K-)-K-+/- are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb(-1), collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as A(CP)(B-+/- -> (K+K-)-K-+/-) =0.032 +/- 0.008(stat)+/- 0.004(syst)+/- 0.007(J/psi K-+/-), and A(CP)(B-+/- -> (K+K-)-K-+/-) = -0.043 +/- 0.009(stat)+/- 0.003 (syst) = 0.007(J/psi K-+/-), where the third uncertainty is due to the CP asymmetry of the B-+/- -> J/psi K-+/- reference mode. The significance of A(CP)(B-+/- -> (K+K-)-K-+/-) exceeds three standard deviations and is the first evidence of an inclusive CP asymmetry in charmless three- body B decays. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.
Published: 2013

26. Analysis of the resonant components in B̄0→J/ ψπ+π

Author: Aaij, R, Abellan Beteta, C, Adametz, A, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dickens, J, Dijkstra, H, Diniz Batista, P, Dogaru, M, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, 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Ukleja, A, Urner, D, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, KHANJI, BASEM, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adametz, A, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, 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D, Hynds, D, Iakovenko, V, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jansen, F, Jaton, P, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín 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Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, and Zvyagin, A
Subjects: Nuclear and High Energy Physics, FIS/01 - FISICA SPERIMENTALE
Abstract: Interpretation of CP violation measurements using charmonium decays, in both the B̄0 and B̄s0 systems, can be subject to changes due to "penguin" type diagrams. These effects can be investigated using measurements of the Cabibbo-suppressed B̄0→J/ ψπ+π- decays. The final state composition of this channel is investigated using a 1.0 fb-1 sample of data produced in 7 TeV pp collisions at the LHC and collected by the LHCb experiment. A modified Dalitz-plot analysis is performed using both the invariant mass spectra and the decay angular distributions. An improved measurement of the B ̄0→J/ψπ+π- branching fraction of (3.97±0.09±0.11±0.16)×10-5 is reported where the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty of the branching fraction of the decay B-→J/ψK- used as a normalization channel. Significant production of f0(500) and ρ(770) resonances is found in the substructure of the J/ψπ+π- final state, and this indicates that they are viable final states for CP violation studies. In contrast evidence for the f0(980) resonance is not found. This allows us to establish the first upper limit on the branching fraction product B(B̄0→J/ψf0(980))×B(f 0(980)→π+π-)
Published: 2013

27. Observation of the suppressed ADS modes B± →[π±K∓π+π-] D K± and B± →[π±K∓π+π-] Dπ±

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinol, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Aquines, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Vandenbrand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, Debonis, I, De Bruyn, K, Decapua, S, De Cian, M, De Miranda, J, De Oyanguren Campos, M, De Paula, L, Desilva, W, De Simone, P, Decamp, D, Deckenhoff, M, Delbuono, L, Derkach, D, Deschamps, O, Dettori, F, Dicanto, A, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Eidelman, S, Vaneijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, Elrifai, I, Elsasser, C, Elsby, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kvaratskheliya, T, Lathi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Legac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leat, A, Lefrançois, J, Leo, S, Leroy, O, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, von Loeben, J, Lohn, S, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Marconi, U, Märki, R, 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O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, M, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Vantilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tonelli, D, Topp Joergensen, S, Torr, N, Tourneer, E, Tourneur, S, Tran, M, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubedagarcia, M, Ukleja, A, Urner, D, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, KHANJI, BASEM, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adeva, B, Adinol, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Aquines, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Vandenbrand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, Debonis, I, De Bruyn, K, Decapua, S, De Cian, M, De Miranda, J, De Oyanguren Campos, M, De Paula, L, Desilva, W, De Simone, P, Decamp, D, Deckenhoff, M, Delbuono, L, Derkach, D, Deschamps, O, Dettori, F, Dicanto, A, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Eidelman, S, Vaneijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, Elrifai, I, Elsasser, C, Elsby, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kvaratskheliya, T, Lathi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Legac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leat, A, Lefrançois, J, Leo, S, Leroy, O, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, von Loeben, J, Lohn, S, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martinstostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Maurice, E, Mazurov, A, Mccarthy, J, Mcnulty, R, Mcnab, A, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Molina Rodriguez, J, Moran, D, Morawski, P, Morello, M, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazosalvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petridis, K, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, 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Coutinho, R, Skwarnicki, T, Smith, N, Smith, M, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Vantilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tonelli, D, Topp Joergensen, S, Torr, N, Tourneer, E, Tourneur, S, Tran, M, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubedagarcia, M, Ukleja, A, Urner, D, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, and Zvyagin, A
Subjects: Nuclear and High Energy Physics, FIS/01 - FISICA SPERIMENTALE
Abstract: An analysis of B± → DK± and B± → Dπ± decays is presented where the D meson is reconstructed in the four-body nal state K±π∓π+π-. Using LHCb data corresponding to an integrated luminosity of 1.0 fb-1, rst observations are made of the suppressed ADS modes B± →[π±K∓π+π-] D K± and B± → [π±K∓π+π-]Dπ± with a signicance of 5.1σ and greater than 10σ, respectively. Measurements of CP asymmetries and CP-conserving ratios of partial widths from this family of decays are also performed. The magnitude of the ratio between the suppressed and favoured B± → DK± amplitudes is determined to be rKB = 0.097±0.011. © CERN for the benet of the LHCb Collaboration.
Published: 2013

28. Search for the decay Bs0→D*-+π±

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Oyanguren Campos, M, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lohn, S, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martins Tostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Maurice, E, Mazurov, A, Mccarthy, J, Mcnulty, R, Mcnab, A, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Morello, M, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Petridis, K, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Punzi, G, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Rives Molina, V, Roa Romero, D, Robbe, P, Rodrigues, E, Rodriguez Perez, P, Roiser, S, Romanovsky, V, Romero Vidal, A, Rouvinet, J, Ruf, T, Ruffini, F, Ruiz, H, Ruiz Valls, P, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sanmartin Sedes, B, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tonelli, D, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubeda Garcia, M, Ukleja, A, Urner, D, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, KHANJI, BASEM, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Oyanguren Campos, M, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lohn, S, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martins Tostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Maurice, E, Mazurov, A, Mccarthy, J, Mcnulty, R, Mcnab, A, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Morello, M, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petridis, K, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Punzi, G, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Rives Molina, V, Roa Romero, D, Robbe, P, Rodrigues, E, Rodriguez Perez, P, Roiser, S, Romanovsky, V, Romero Vidal, A, Rouvinet, J, Ruf, T, Ruffini, F, Ruiz, H, Ruiz Valls, P, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sanmartin Sedes, B, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tonelli, D, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubeda Garcia, M, Ukleja, A, Urner, D, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, and Zvyagin, A
Subjects: Nuclear and High Energy Physics
Abstract: A search for the decay Bs0→D*-+ π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help us to understand the mechanism behind related decays such as Bs0→π+π - and Bs0→DD̄. Systematic uncertainties are minimized by using B0→D*-+π± as a normalization channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(Bs0→D*-+ π±)
Published: 2013

29. Observation of B0s ->χc1φ decay and study of: B0 -> χ c1,2 K*0 decays

Author: Aaij, R, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, J, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Andrews, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Campora Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Castillo Garcia, L, Cattaneo, M, Cauet, C, Cenci, R, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, Davis, A, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Déléage, N, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Di Ruscio, F, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fiore, M, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Giubega, L, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Griffith, P, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hamilton, B, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Head, T, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicheur, A, Hicks, E, Hill, D, Hoballah, M, Holtrop, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jawahery, A, Jing, F, John, M, Johnson, D, Jones, C, Joram, C, Jost, B, Kaballo, M, Kandybei, S, Kanso, W, Karacson, M, Karbach, T, Kenyon, I, Ketel, T, Keune, A, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Lohn, S, Longstaff, I, Lopes, J, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martins Tostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Maurice, E, Mazurov, A, Mcskelly, B, Mccarthy, J, Mcnab, A, Mcnulty, R, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mordà, A, Morello, M, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neubert, S, Neufeld, N, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora 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W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, KHANJI, BASEM, KUCHARCZYK, MARCIN, PESSINA, GIANLUIGI EZIO, Aaij, R, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, J, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Andrews, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, 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Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Lohn, S, Longstaff, I, Lopes, J, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martins Tostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Maurice, E, Mazurov, A, Mcskelly, B, Mccarthy, J, Mcnab, A, Mcnulty, R, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mordà, A, Morello, M, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neubert, S, Neufeld, N, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, 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Subjects: Nuclear and High Energy Physics, FIS/01 - FISICA SPERIMENTALE
Abstract: The first observation of the decay B0s → χc1φ and a study of B0 → χc1,2K*0 decays are presented. The analysis is performed using a dataset, corresponding to an integrated luminosity of 1.0 fb-1, collected by the LHCb experiment in pp collisions at a centre-of-mass energy of 7 TeV. The following ratios of branching fractions are measured: Where the third uncertainty is due to the limited knowledge of the branching fractions of χc → J/ψγ modes. © 2013 CERN. Published by Elsevier B.V.
Published: 2013

30. Observation of B0→D¯(0)K(+)K(-) and evidence for B(s)(0)→D¯(0)K(+)K(-)

Author: Aaij, R, Abellan Beteta, C, Adametz, A, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderlini, L, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Beddow, J, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li, Y, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, MacHefert, F, MacHikhiliyan, I, MacIuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Mazurov, A, McCarthy, J, McGregor, G, McNulty, R, Meissner, M, Merk, M, Merkel, J, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Romero Vidal, A, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sanmartin Sedes, B, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Uwer, U, Vagnoni, V, Valenti, G, Van Eijk, D, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adametz, A, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderlini, L, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Beddow, J, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li, Y, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Mazurov, A, Mccarthy, J, Mcgregor, G, Mcnulty, R, Meissner, M, Merk, M, Merkel, J, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Romero Vidal, A, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sanmartin Sedes, B, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Uwer, U, Vagnoni, V, Valenti, G, Van Eijk, D, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, and Zvyagin, A
Subjects: Heavy Flavour Physics, LHC Collider
Abstract: The first observation of the decay B0→D¯(0)K(+)K(-) is reported from an analysis of 0.62 fb(-1) of pp collision data collected with the LHCb detector. Its branching fraction is measured relative to that of the topologically similar decay B(0)→D ¯(0)π(+)π(-) to be (B(B(0)→D¯(0)K(+)K(-))/B(B(0)→D¯(0)π(+)π(-))=0.056±0.011±0.007,where the first uncertainty is statistical and the second is systematic. The significance of the signal is 5.8σ. Evidence, with 3.8σ significance, for B(s)(0)→D¯(0)K(+)K(-) decays is also presented. The relative branching fraction is measured to be B(B(s)(0)→D¯(0)K(+)K(-))/B(B(0)→D¯(0)K(+)K(-))=0.90±0.27±0.20. These channels are of interest to study the mechanisms behind hadronic B decays, and open new possibilities for CP violation analyses with larger data sets.
Published: 2012

31. Measurement of the Bs0 Effective Lifetime in the J/Psi f0(980) Final State

Author: Aaij, R, Abellan Beteta, C, Adametz, A, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderlini, L, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Beddow, J, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van 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B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, and Zvyagin, A
Subjects: Heavy Flavour Physics, LHC Collider, Bs mesons, B meson decays, lifetime, LHCb, Physics and Astronomy (all), FIS/01 - FISICA SPERIMENTALE, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
Abstract: The effective lifetime of the B ¯(s)(0) meson in the decay mode B¯(s)(0)→J/ψf(0)(980) is measured using 1.0 fb(-1) of data collected in pp collisions at √s=7 TeV with the LHCb detector. The result is 1.700±0.040±0.026 ps, where the first uncertainty is statistical and the second systematic. As the final state is CP-odd, and CP violation in this mode is measured to be small, the lifetime measurement can be translated into a measurement of the decay width of the heavy B¯(s)(0) mass eigenstate, Γ(H)=0.588±0.014±0.009 ps(-1).
Published: 2012

32. Measurements of the branching fractions of the decays B s0→ D s∓ K± and B s0→ D s- π +

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, A. A. , A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, CALVI, MARTA, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Cid Vidal, X, Ciezarek, G, Null, C, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, 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Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, and Zvyagin, A
Subjects: Nuclear and High Energy Physics, Hadron-hadron scattering
Abstract: The decay mode B s0 → D s∓ K ± allows for one of the theoretically cleanest measurements of the CKM angle γ through the study of time-dependent CP violation. This paper reports a measurement of its branching fraction relative to the Cabibbo-favoured mode B s0 → D s- π + based on a data sample corresponding to 0.37 fb -1 of proton-proton collisions at √s = 7TeV collected in 2011 with the LHCb detector. In addition, the ratio of B meson production fractions f s=f d, determined from semileptonic decays, together with the known branching fraction of the control channel B 0 → D -π +, is used to perform an absolute measurement of the branching fractions: B( B s0 → D s- π +) = (2.95 ± 0.05 ± 0.17 -0.22+0.18) × 10 -3 ; B( B s0 → D s∓ K ±) = (1.90 ± 0.12 ± 0.13 -0.14+0.12) × 10 -4 ; where the first uncertainty is statistical, the second the experimental systematic uncertainty, and the third the uncertainty due to f s=f d. Copyright CERN.
Published: 2012

33. Measurement of the Bs0→J/ψK ̄*0 branching fraction and angular amplitudes

Author: Aaij, R, Abellan Beteta, C, Adametz, A, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Beddow, J, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Craik, D, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gauvin, N, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Hoballah, M, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li, Y, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, MacHefert, F, MacHikhiliyan, I, MacIuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Mazurov, A, McCarthy, J, McGregor, G, McNulty, R, Meissner, M, Merk, M, Merkel, J, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Romero Vidal, A, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sanmartin Sedes, B, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adametz, A, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Beddow, J, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Craik, D, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gauvin, N, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Hoballah, M, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li, Y, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Mazurov, A, Mccarthy, J, Mcgregor, G, Mcnulty, R, Meissner, M, Merk, M, Merkel, J, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Romero Vidal, A, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sanmartin Sedes, B, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, and Zvyagin, A
Subjects: FIS/01 - FISICA SPERIMENTALE, Heavy Flavour Physic, Nuclear and High Energy Physic, LHC Collider
Abstract: A sample of 114±11 Bs0→J/ψK -π + signal events obtained with 0.37fb -1 of pp collisions at √s=7TeV collected by the LHCb experiment is used to measure the branching fraction and polarization amplitudes of the Bs0→J/ψK ̄*0 decay, with K ̄ *0→K -π +. The K -π + mass spectrum of the candidates in the Bs0 peak is dominated by the K ̄*0 contribution. Subtracting the nonresonant K -π + component, the branching fraction of Bs0→J/ψK ̄*0 is (4.4-0.4+0.5±0.8)×10 -5, where the first uncertainty is statistical and the second is systematic. A fit to the angular distribution of the decay products yields the K *0 polarization fractions f L=0.50±0.08±0.02 and f=0.19-0.08+0.10±0.02. © 2012 CERN.
Published: 2012

34. Measurement of the cross-section ratio σ(χ c2)/σ(χ c1) for prompt χ c production at s=7 TeV

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Arrabito, L, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Bailey, D, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Comerma Montells, A, Constantin, F, Conti, G, Contu, A, Cook, A, Coombes, M, Corti, G, Cowan, G, Currie, R, D'Almagne, B, D'Ambrosio, C, David, P, De Bonis, I, De Capua, S, De Cian, M, De Lorenzi, F, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Deissenroth, M, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, Elsby, D, Esperante Pereira, D, Estève, L, Falabella, A, Fanchini, E, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Gys, T, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicks, E, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koppenburg, P, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, McGregor, G, McNulty, R, Mclean, C, Meissner, M, Merk, M, Merkel, J, Messi, R, Miglioranzi, S, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Musy, M, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Nedos, M, Needham, M, Neufeld, N, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, K, Palacios, J, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Petrella, A, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Plackett, R, Playfer, S, Plo Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, du Pree, T, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Raven, G, Redford, S, Reid, M, dos Reis, A, Ricciardi, S, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shao, B, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, A, Smith, N, Smith, E, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Topp Joergensen, S, Torr, N, Tournefier, E, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Urquijo, P, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Viaud, B, Videau, I, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Voss, H, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yushchenko, O, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zverev, E, Zvyagin, A., CALVI, MARTA, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Arrabito, L, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Bailey, D, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Comerma Montells, A, Constantin, F, Conti, G, Contu, A, Cook, A, Coombes, M, Corti, G, Cowan, G, Currie, R, D'Almagne, B, D'Ambrosio, C, David, P, De Bonis, I, De Capua, S, De Cian, M, De Lorenzi, F, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Deissenroth, M, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, Elsby, D, Esperante Pereira, D, Estève, L, Falabella, A, Fanchini, E, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Gys, T, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicks, E, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koppenburg, P, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kucharczyk, M, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, Mcgregor, G, Mcnulty, R, Mclean, C, Meissner, M, Merk, M, Merkel, J, Messi, R, Miglioranzi, S, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Musy, M, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Nedos, M, Needham, M, Neufeld, N, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, K, Palacios, J, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petrella, A, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Plackett, R, Playfer, S, Plo Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, du Pree, T, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Raven, G, Redford, S, Reid, M, dos Reis, A, Ricciardi, S, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shao, B, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, A, Smith, N, Smith, E, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Topp Joergensen, S, Torr, N, Tournefier, E, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Urquijo, P, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Viaud, B, Videau, I, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Voss, H, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yushchenko, O, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zverev, E, and Zvyagin, A
Subjects: Heavy Flavour Physics, LHC Collider, FIS/05 - ASTRONOMIA E ASTROFISICA, Nuclear and High Energy Physics, FIS/01 - FISICA SPERIMENTALE, Nuclear and High Energy Physic
Abstract: The prompt production of the charmonium χ c1 and χ c2 mesons has been studied in proton-proton collisions at the Large Hadron Collider at a centre-of-mass energy of s=7 TeV. The χ c mesons are identified through their decays χ c→J/ψγ with J/ψ→μ +μ - using 36 pb -1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for the two χ c spin states, σ(χ c2)/σ(χ c1), has been determined as a function of the J/ψ transverse momentum, pTJ/ψ, in the range from 2 to 15 GeV/c. The results are in agreement with the next-to-leading order non-relativistic QCD model at high pTJ/ψ and lie consistently above the pure leading-order colour-singlet prediction. © 2012 CERN.
Published: 2012

35. Analysis of the resonant components in B̄s0→J/ψπ +π

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, MacHefert, F, MacHikhiliyan, I, MacIuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, McGregor, G, McNulty, R, Meissner, M, Merk, M, Merkel, J, Miglioranzi, S, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palacios, J, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Plackett, R, Playfer, S, Plo Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voss, H, Waldi, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, Mcgregor, G, Mcnulty, R, Meissner, M, Merk, M, Merkel, J, Miglioranzi, S, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palacios, J, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Plackett, R, Playfer, S, Plo Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voss, H, Waldi, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, and Zvyagin, A
Subjects: Nuclear and High Energy Physics, Nuclear and High Energy Physics, Heavy Flavour Physics, LHC Collider
Abstract: The decay Bso→J/ψπ +π - can be exploited to study CP violation. A detailed understanding of its structure is imperative in order to optimize its usefulness. An analysis of this three-body final state is performed using a 1.0fb -1 sample of data produced in 7TeV pp collisions at the LHC and collected by the LHCb experiment. A modified Dalitz plot analysis of the final state is performed using both the invariant mass spectra and the decay angular distributions. The π +π - system is shown to be dominantly in an S-wave state, and the CP-odd fraction in this B̄s0 decay is shown to be greater than 0.977 at 95%confidence level. In addition, we report the first measurement of the J/ψπ +π - branching fraction relative to J/ψ of (19.79±0.47±0.52)%. © 2012 CERN. Published by the American Physical Society under the terms of the.
Published: 2012

36. Observation of J/psi-pair production in pp collisions at root s=7 TeV

Author: Aaij, R, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Alkhazov, G, Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Gutierrez, O, Archilli, F, Arrabito, L, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Bailey, D, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bizzeti, A, Bjornstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Brisbane, S, Britsch, M, Britton, T, Brook, N, Brown, H, Buchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Carvajal, J, Callot, O, Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Akiba, K, Casse, G, Cattaneo, M, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Constantin, F, Conti, G, Contu, A, Cook, A, Coombes, M, Corti, G, Cowan, G, Currie, R, D'Almagne, B, D'Ambrosio, C, David, P, De Bonis, I, De Capua, S, De Cian, M, De Lorenzi, F, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Deissenroth, M, Del Buono, L, Deplano, C, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Batista, P, Donleavy, S, Suarez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Eames, C, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, d'Enterria, D, Pereira, D, Esteve, L, Falabella, A, Farber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Frank, M, Frei, C, Frosini, M, Furcas, S, Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Tico, J, Garrido, L, Gaspar, C, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Gobel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Gandara, M, Diaz, R, Cardoso, L, Grauges, E, Graziani, G, Grecu, A, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Gys, T, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P, He, J, Heijne, V, Hennessy, K, Henrard, P, Morata, J, van Herwijnen, E, Hicks, E, Hofmann, W, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koblitz, S, Koppenburg, P, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kucharczyk, M, Kukulak, S, Kumar, R, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Le Gac, R, van Leerdam, J, Lees, J, Lefevre, R, Leflat, A, Lefrancois, J, Leroy, O, Lesiak, T, Li, L, Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Lopes, J, Asamar, E, Lopez March, N, Luisier, J, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Marki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Sanchez, A, Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, McGregor, G, McNulty, R, Mclean, C, Meissner, M, Merk, M, Merkel, J, Messi, R, Miglioranzi, S, Milanes, D, Minard, M, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Muller, K, Muresan, R, Muryn, B, Musy, M, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nardulli, J, Nasteva, I, Nedos, M, Needham, M, Neufeld, N, Nguyen Mau, C, Nicol, M, Nies, S, Niess, V, Nikitin, N, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Goicochea, J, Owen, P, Pal, B, Palacios, J, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, C, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Alvarez, A, Pellegrino, A, Penso, G, Altarelli, M, Perazzini, S, Perego, D, Trigo, E, Yzquierdo, A, Perret, P, Perrin Terrin, M, Petrella, A, Petrolini, A, Valls, B, Pietrzyk, B, Pilar, T, Pinci, D, Plackett, R, Playfer, S, Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, du Pree, T, Prisciandaro, J, Pugatch, V, Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Raven, G, Redford, S, Reid, M, dos Reis, A, Ricciardi, S, Rinnert, K, Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schleich, S, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shao, B, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Coutinho, R, Skottowe, H, Skwarnicki, T, Smith, A, Smith, N, Sobczak, K, Soler, F, Solomin, A, Soomro, F, De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Styles, N, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Topp Joergensen, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ukleja, A, Urquijo, P, Uwer, U, Vagnoni, V, Valenti, G, Gomez, R, Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Vervink, K, Viaud, B, Videau, I, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Voong, D, Vorobyev, A, Voss, H, Wacker, K, Wandernoth, S, Wang, J, Ward, D, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Yang, Z, Young, R, Yushchenko, O, Zavertyaev, M, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zverev, E, Zvyagin, A., CALVI, MARTA, FANCHINI, ERICA, PESSINA, GIANLUIGI EZIO, Aaij, R, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Alkhazov, G, Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Gutierrez, O, Archilli, F, Arrabito, L, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Bailey, D, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bizzeti, A, Bjornstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Brisbane, S, Britsch, M, Britton, T, Brook, N, Brown, H, Buchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Carvajal, J, Callot, O, Calvi, M, Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Akiba, K, Casse, G, Cattaneo, M, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Constantin, F, Conti, G, Contu, A, Cook, A, Coombes, M, Corti, G, Cowan, G, Currie, R, D'Almagne, B, D'Ambrosio, C, David, P, De Bonis, I, De Capua, S, De Cian, M, De Lorenzi, F, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Deissenroth, M, Del Buono, L, Deplano, C, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Batista, P, Donleavy, S, Suarez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Eames, C, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, D'Enterria, D, Pereira, D, Esteve, L, Falabella, A, Fanchini, E, Farber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Frank, M, Frei, C, Frosini, M, Furcas, S, Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Tico, J, Garrido, L, Gaspar, C, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Gobel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Gandara, M, Diaz, R, Cardoso, L, Grauges, E, Graziani, G, Grecu, A, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Gys, T, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P, He, J, Heijne, V, Hennessy, K, Henrard, P, Morata, J, van Herwijnen, E, Hicks, E, Hofmann, W, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koblitz, S, Koppenburg, P, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kucharczyk, M, Kukulak, S, Kumar, R, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Le Gac, R, van Leerdam, J, Lees, J, Lefevre, R, Leflat, A, Lefrancois, J, Leroy, O, Lesiak, T, Li, L, Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Lopes, J, Asamar, E, Lopez March, N, Luisier, J, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Marki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Sanchez, A, Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, Mcgregor, G, Mcnulty, R, Mclean, C, Meissner, M, Merk, M, Merkel, J, Messi, R, Miglioranzi, S, Milanes, D, Minard, M, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Muller, K, Muresan, R, Muryn, B, Musy, M, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nardulli, J, Nasteva, I, Nedos, M, Needham, M, Neufeld, N, Nguyen Mau, C, Nicol, M, Nies, S, Niess, V, Nikitin, N, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Goicochea, J, Owen, P, Pal, B, Palacios, J, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, C, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Alvarez, A, Pellegrino, A, Penso, G, Altarelli, M, Perazzini, S, Perego, D, Trigo, E, Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petrella, A, Petrolini, A, Valls, B, Pietrzyk, B, Pilar, T, Pinci, D, Plackett, R, Playfer, S, Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, du Pree, T, Prisciandaro, J, Pugatch, V, Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Raven, G, Redford, S, Reid, M, dos Reis, A, Ricciardi, S, Rinnert, K, Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schleich, S, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shao, B, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Coutinho, R, Skottowe, H, Skwarnicki, T, Smith, A, Smith, N, Sobczak, K, Soler, F, Solomin, A, Soomro, F, De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Styles, N, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Topp Joergensen, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ukleja, A, Urquijo, P, Uwer, U, Vagnoni, V, Valenti, G, Gomez, R, Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Vervink, K, Viaud, B, Videau, I, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Voong, D, Vorobyev, A, Voss, H, Wacker, K, Wandernoth, S, Wang, J, Ward, D, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Yang, Z, Young, R, Yushchenko, O, Zavertyaev, M, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zverev, E, and Zvyagin, A
Subjects: particle and resonance production, MESON PRODUCTION, heavy quark production, PSI-PSI-PRODUCTION, UPSILON, QCD, NO, FIS/01 - FISICA SPERIMENTALE, flavor physic, High Energy Physics::Experiment, Nuclear Experiment, quarkonium, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE, experimental results
Abstract: The production of J/psi pairs in proton-proton collisions at a centre-of-mass energy of 7 TeV has been observed using an integrated luminosity of 37.5 pb(-1) collected with the LHCb detector. The production cross-section for pairs with both J/psi in the rapidity range 2 < y(J/psi) < 4.5 and transverse momentum p(T)(J/psi) < 10 GeV/c is sigma(J/psi J/psi) = 5.1 +/- 1.0 +/- 1.1 nb, where the first uncertainty is statistical and the second systematic. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
Published: 2012

37. Inclusive W and Z Production in the Forward Region at √s = 7 TeV

Author: Aaij, R, Abellan Beteta, C, Adametz, A, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves J.r. , A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Beddow, J, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, CALVI, MARTA, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, 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D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li, Y, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, Mcgregor, G, Mcnulty, R, Meissner, M, Merk, M, Merkel, J, Miglioranzi, S, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palacios, J, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Plackett, R, Playfer, S, Plo Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G, Roiser, S, Romanovsky, V, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, and Zvyagin, A
Subjects: Hadron-Hadron scattering, Heavy Flavour Physics, LHC Collider, Z bosons, +10+GeV%29%3A+Inclusive+production+with+identified+leptons+photons+or+other+nonhadronic+particle%22">Hadron-induced high- and super-high-energy interactions (energy > 10 GeV): Inclusive production with identified leptons photons or other nonhadronic particle, W boson, Nuclear and High Energy Physic
Abstract: Measurements of inclusive W and Z boson production cross-sections in pp collisions at √s = 7 TeV using final states containing muons are presented. The data sample corresponds to an integrated luminosity of 37 pb^−1 collected with the LHCb detector. The W and Z bosons are reconstructed from muons with a transverse momentum above 20 GeV/c and pseudorapidity between 2.0 and 4.5, and, in the case of the Z cross-section, a dimuon invariant mass between 60 and 120 GeV/c^2. The cross-sections are measured to be 831 ± 9 ± 27 ± 29 pb for W+, 656 ± 8 ± 19 ± 23 for W− and 76.7 ± 1.7 ± 3.3 ± 2.7 pb for Z, where the first uncertainty is statistical, the second is systematic and the third is due to the luminosity. Differential cross-sections, W and Z cross-section ratios and the lepton charge asymmetry are also measured in the same kinematic region. The ratios are determined to be σ_{W+ → μ+ ν}/σ_{W− → μ− anti-ν} = 1.27 ± 0.02 ± 0.01 and (σ_{W+ → μ+ ν} + σ_{W− → μ− anti-ν}) / σ_{Z → μμ} = 19.4 ± 0.5 ± 0.9. The results are in general agreement with theoretical predictions, performed at next-to-next-to-leading order in QCD using recently calculated parton distribution functions.
Published: 2012

38. Measurement of the CP-violating phase Φs in B0s → J/ψ π+ π- decays

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, de Bruyn, K, Büchler Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chiapolini, N, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, C, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicks, E, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Keaveney, J, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, von Loeben, J, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, Mcgregor, G, Mcnulty, R, Meissner, M, Merk, M, Merkel, J, Miglioranzi, S, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen Mau, C, Nicol, M, Niess, V, Nikitin, N, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palacios, J, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perez Trigo, E, 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Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Sobczak, K, Soler, F, Solomin, A, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Viaud, B, Videau, I, Vieira, D, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Voss, H, Waldi, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, Zvyagin, A., CALVI, MARTA, MATTEUZZI, CLARA, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Anderson, J, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, 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Subjects: Nuclear and High Energy Physics
Abstract: Measurement of the mixing-induced CP-violating phase Φs in B0s decays is of prime importance in probing new physics. Here 7421 ± 105 signal events from the dominantly CP-odd final state J/ψπ+π- are selected in 1 fb-1 of pp collision data collected at √ s = 7 TeV with the LHCb detector. A timedependent fit to the data yields a value of Φs = -0.019+0.173+0.004 -0.174-0.003 rad, consistent with the Standard Model expectation. No evidence of direct CP violation is found.
Published: 2012

39. First observation of B0 s→D*s2+Xμν̄- decays

Author: Aaij, R, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Agari, M, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Alvarez Cartelle, P, Alves, A, Amato, S, Amhis, Y, Amoraal, J, Anderson, J, Antunes Nobrega, R, Appleby, R, Aquines Gutierrez, O, Arefyev, A, Arrabito, L, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Bailey, D, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Basiladze, S, Bates, A, Bauer, C, Bauer, T, Bay, A, Bediaga, I, Belous, K, Belyaev, I, Benayoun, M, Bencivenni, G, Bernet, R, Bettler, M, van Beuzekom, M, Bifani, S, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bochin, B, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bos, E, Bowcock, T, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brisbane, S, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Bursche, A, Buytaert, J, Cadeddu, S, Caicedo Carvajal, J, Callot, O, Calvo Gomez, M, Camboni, A, Cameron, W, Camilleri, L, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Charles, M, Charpentier, P, Cheng, J, Chiapolini, N, Chlopik, A, Christiansen, J, Ciambrone, P, Cid Vidal, X, Clark, P, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Constantin, F, Conti, G, Contu, A, Coombes, M, Corti, G, Cowan, G, Currie, R, D'Almagne, B, D'Ambrosio, C, D'Antone, I, Da Silva, W, Dané, E, David, P, De Bonis, I, De Capua, S, De Cian, M, De Lorenzi, F, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Degaudenzi, H, Deissenroth, M, Del Buono, L, Deplano, C, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Dima, M, Donleavy, S, Dornan, P, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Eames, C, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Eklund, L, D'Enterria, D, Esperante Pereira, D, Estève, L, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, 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J, Blusk, S, Bobrov, A, Bocci, V, Bochin, B, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bos, E, Bowcock, T, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brisbane, S, Britsch, M, Britton, T, Brook, N, Brown, H, Büchler Germann, A, Bursche, A, Buytaert, J, Cadeddu, S, Caicedo Carvajal, J, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Cameron, W, Camilleri, L, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Charles, M, Charpentier, P, Cheng, J, Chiapolini, N, Chlopik, A, Christiansen, J, Ciambrone, P, Cid Vidal, X, Clark, P, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Constantin, F, Conti, G, Contu, A, Coombes, M, Corti, G, Cowan, G, Currie, R, D'Almagne, B, D'Ambrosio, C, D'Antone, I, Da Silva, W, Dané, E, David, P, De Bonis, I, De Capua, S, De Cian, M, De Lorenzi, F, De Miranda, J, De Paula, L, De Simone, P, Decamp, D, Degaudenzi, H, Deissenroth, M, Del Buono, L, Deplano, C, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Dima, M, Donleavy, S, Dornan, P, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Eames, C, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Eklund, L, D'Enterria, D, Esperante Pereira, D, Estève, L, Fanchini, E, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Flegel, W, Fontanelli, F, Forty, R, Frank, M, Frei, C, Frosini, M, Fungueirino Pazos, J, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J, Garofoli, J, Garrido, L, Gaspar, C, Gassner, J, Gauvin, N, Gavillet, P, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gong, G, Gong, H, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Gregson, S, Gui, B, Gushchin, E, Guz, Y, Guzik, Z, Gys, T, Haefeli, G, Haines, S, Hampson, T, Hansmann Menzemer, S, Harji, R, Harnew, N, Harrison, P, He, J, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicheur, A, Hicks, E, Hilke, H, Hofmann, W, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R, Hutchcroft, D, Iakovenko, V, Iglesias Escudero, C, Ilgner, C, Ilten, P, Imong, J, Jacobsson, R, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean Marie, B, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kapusta, F, Karbach, T, Kashchuk, A, Keaveney, J, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y, Knecht, M, Koblitz, S, Konoplyannikov, A, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kucharczyk, M, Kukulak, S, Kumar, R, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, R, Lanfranchi, G, Langenbruch, C, Latham, T, Le Gac, R, van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Lehner, F, Leroy, O, Lesiak, T, Li, L, Li, Y, Li Gioi, L, Libby, J, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Löchner, S, Lopes, J, Lopez Asamar, E, Lopez March, N, Luisier, J, M'Charek, B, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Magnin, J, Maier, A, Malde, S, Mamunur, R, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martin Sanchez, A, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Matveev, V, Maurice, E, Maynard, B, Mazurov, A, Mcgregor, G, Mcnulty, R, Mclean, C, Meissner, M, Merk, M, Merkel, J, Merkin, M, Messi, R, Miglioranzi, S, Milanes, D, Minard, M, Monteil, S, Moran, D, Morawski, P, Morris, J, Moscicki, J, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Murtas, F, Muryn, B, Musy, M, Mylroie Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nardulli, J, Nawrot, A, Nedos, M, Needham, M, Neufeld, N, Neustroev, P, Nicol, M, Nies, S, Niess, V, Nikitin, N, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Ostankov, A, Pal, B, Palacios, J, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Paterson, S, Patrick, G, Patrignani, C, Pauna, E, Pauna Chiojdeanu, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Pessina, G, Petrella, A, Petrolini, A, Pie Valls, B, Pietrzyk, B, Pinci, D, Plackett, R, Playfer, S, Plo Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Pozzi, S, du Pree, T, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J, Rakotomiaramanana, B, Raniuk, I, Raven, G, Redford, S, Reece, W, dos Reis, A, Ricciardi, S, Rinnert, K, Roa Romero, D, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Cobo, C, Rodriguez Perez, P, Rogers, G, Romanovsky, V, Rouvinet, J, Ruf, T, Ruiz, H, Rusinov, V, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sambade Varela, A, Sannino, M, Santacesaria, R, Santinelli, R, Santovetti, E, Sapunov, M, Saputi, A, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schleich, S, Schmelling, M, Schmidt, B, Schneider, O, Schneider, T, Schopper, A, Schune, M, Schwemmer, R, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Serra, N, Serrano, J, Shao, B, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Simioni, E, Skottowe, H, Skwarnicki, T, Smale, N, Smith, A, Sobczak, K, Soler, F, Solomin, A, Somogy, P, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spiridenkov, E, Spradlin, P, Srednicki, A, Stagni, F, Steiner, S, Steinkamp, O, Stenyakin, O, Stoica, S, Stone, S, Storaci, B, Straumann, U, Styles, N, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Talanov, V, Tarkovskiy, E, Teodorescu, E, Terrier, H, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Topp Joergensen, S, Tran, M, Traynor, S, Trunk, U, Tsaregorodtsev, A, Tuning, N, Ukleja, A, Urquijo, P, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Vervink, K, Viaud, B, Videau, I, Vilasis Cardona, X, Visniakov, J, Vollhardt, A, Voong, D, Vorobyev, A, Voss, H, Wacker, K, Wandernoth, S, Wang, J, Ward, D, Webber, A, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S, Wyllie, K, Xie, Y, Xing, F, Yang, Z, Ybeles Smit, G, Young, R, Yushchenko, O, Zavertyaev, M, Zeng, M, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhong, L, and Zverev, E
Subjects: Nuclear and High Energy Physics, B-s0 meson, Semileptonic b decay, LHC
Abstract: Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the semileptonic decays B0s→D+s+Xμν̄ and B0s→D0K+Xμν̄ are detected. Two structures are observed in the D0K+ mass spectrum at masses consistent with the known Ds1(2536)+ and Ds2*(2573)+ mesons. The measured branching fractions relative to the total B-s0 semileptonic rate are B(B0s→Ds2*+Xμν̄)/B(B0s→Xμν̄)=(3.3±1.0±0.4)%, and B(B0s→D+s1Xμν̄)/B(B0s→Xμν̄)=(5.4±1.2±0.5)%, where the first uncertainty is statistical and the second is systematic. This is the first observation of the D*+s2 state in B0s decays; we also measure its mass and width. © 2011 CERN.
Published: 2011

40. Exploring the neutrinoless double beta decay in the inverted neutrino hierarchy with bolometric detectors

Author: Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Cai, X, Camacho, A, Canonica, L, Cao, X, Capelli, S, Carbone, L, Cardani, L, Carrettoni, M, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, Datskov, V, De Biasi, A, Deninno, M, Di Domizio, S, Di Vacri, M, Ejzak, L, Fang, D, Farach, H, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Goett, J, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Heeger, K, Hennings Yeomans, R, Huang, H, Kadel, R, Kazkaz, K, Keppel, G, Kolomensky, Y, Li, Y, Ligi, C, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nisi, S, Nones, C, Norman, E, Nucciotti, A, O’Donnell, T, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pedretti, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Previtali, E, Rampazzo, V, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Scielzo, N, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Wielgus, L, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhu, B, Zucchelli, S, Zucchelli, S., BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CARRETTONI, MARCO ANDREA, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, FAVERZANI, MARCO, FERRI, ELENA, FIORINI, ETTORE, GIACHERO, ANDREA, GIRONI, LUCA, GOTTI, CLAUDIO, MAIANO, CECILIA GIOVANNA, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, ZANOTTI, LUIGI ERNESTO, Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Cai, X, Camacho, A, Canonica, L, Cao, X, Capelli, S, Carbone, L, Cardani, L, Carrettoni, M, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, Datskov, V, De Biasi, A, Deninno, M, Di Domizio, S, Di Vacri, M, Ejzak, L, Fang, D, Farach, H, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Goett, J, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Heeger, K, Hennings Yeomans, R, Huang, H, Kadel, R, Kazkaz, K, Keppel, G, Kolomensky, Y, Li, Y, Ligi, C, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nisi, S, Nones, C, Norman, E, Nucciotti, A, O’Donnell, T, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pedretti, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Previtali, E, Rampazzo, V, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Scielzo, N, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Wielgus, L, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhu, B, Zucchelli, S, Zucchelli, S., BIASSONI, MATTEO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CARRETTONI, MARCO ANDREA, CHIESA, DAVIDE, CLEMENZA, MASSIMILIANO, FAVERZANI, MARCO, FERRI, ELENA, FIORINI, ETTORE, GIACHERO, ANDREA, GIRONI, LUCA, GOTTI, CLAUDIO, MAIANO, CECILIA GIOVANNA, MAINO, MATTEO, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, PREVITALI, EZIO, SISTI, MONICA, TERRANOVA, FRANCESCO, and ZANOTTI, LUIGI ERNESTO
Abstract: Neutrinoless double beta decay (Formula presented.) is one of the most sensitive probes for physics beyond the Standard Model, providing unique information on the nature of neutrinos. In this paper we review the status and outlook for bolometric (Formula presented.) decay searches. We summarize recent advances in background suppression demonstrated using bolometers with simultaneous readout of heat and light signals. We simulate several configurations of a future CUORE-like bolometer array which would utilize these improvements and present the sensitivity reach of a hypothetical next-generation bolometric (Formula presented.) experiment. We demonstrate that a bolometric experiment with the isotope mass of about 1 ton is capable of reaching the sensitivity to the effective Majorana neutrino mass (Formula presented.) of order 10–20 meV, thus completely exploring the so-called inverted neutrino mass hierarchy region. We highlight the main challenges and identify priorities for an R&D program addressing them.
Published: 2014

41. Radiation hardness tests and characterization of the CLARO-CMOS, a low power and fast single-photon counting ASIC in 0.35 micron CMOS technology

Author: Fiorini, M, Andreotti, M, Baldini, W, Calabrese, R, Carniti, P, Cassina, L, Cotta Ramusino, A, Giachero, A, Gotti, C, Luppi, E, Maino, M, Malaguti, R, Pessina, G, Tomassetti, L, Tomassetti, L., CARNITI, PAOLO, CASSINA, LORENZO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, Fiorini, M, Andreotti, M, Baldini, W, Calabrese, R, Carniti, P, Cassina, L, Cotta Ramusino, A, Giachero, A, Gotti, C, Luppi, E, Maino, M, Malaguti, R, Pessina, G, Tomassetti, L, Tomassetti, L., CARNITI, PAOLO, CASSINA, LORENZO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, and PESSINA, GIANLUIGI EZIO
Abstract: The CLARO-CMOS is a prototype ASIC that allows fast photon counting with 5 ns peaking time, a recovery time to baseline smaller than 25 ns, and a power consumption of less than 1 mW per channel. This chip is capable of single-photon counting with multi-anode photomultipliers and finds applications also in the read-out of silicon photomultipliers and microchannel plates. The prototype is realized in AMS 0.35 micron CMOS technology. In the LHCb RICH environment, assuming 10 years of operation at the nominal luminosity expected after the upgrade in Long Shutdown 2 (LS2), the ASIC must withstand a total fluence of about 6×1012 1 MeV neq/cm2 and a total ionizing dose of 400 krad. A systematic evaluation of the radiation effects on the CLARO-CMOS performance is therefore crucial to ensure long term stability of the electronics front-end. The results of multi-step irradiation tests with neutrons and X-rays up to the fluence of 1014 cm-2 and a dose of 4 Mrad, respectively, are presented, including measurement of single event effects during irradiation and chip performance evaluation before and after each irradiation step.
Published: 2014

42. Precision luminosity measurements at LHCb

Author: Aaij, R, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Cartelle, P, Alves, J, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Anderson, J, Andreassen, R, Andreotti, M, Andrews, J, Appleby, R, Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, J, Badalov, A, Baesso, C, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Borsato, M, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brodzicka, J, Brook, N, Brown, H, Bursche, A, Buytaert, J, Cadeddu, S, Calabrese, R, Calvi, M, Gomez, M, Campana, P, Perez, D, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Akiba, K, Casse, G, Cassina, L, Garcia, L, Cattaneo, M, Cauet, C, Cenci, R, Charles, M, Charpentier, P, Chefdeville, M, Chen, S, Cheung, S, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coco, V, Cogan, J, Cogneras, E, Cojocariu, L, Collazuol, G, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Corvo, M, Counts, I, Couturier, B, Cowan, G, Craik, D, Cruz Torres, M, Cunliffe, S, Currie, R, D'Ambrosio, C, Dalseno, J, David, P, Davis, A, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Paula, L, De Silva, W, De Simone, P, Dean, C, Decamp, D, Deckenhoff, M, Del Buono, L, Déléage, N, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Donleavy, S, Dordei, F, Dorigo, M, Suárez, A, Dossett, D, Dovbnya, A, Dreimanis, K, Dujany, G, Dupertuis, F, Durante, P, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Ely, S, Esen, S, Evans, H, Evans, T, Falabella, A, Färber, C, Farinelli, C, Farley, N, Farry, S, Fay, R, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fiore, M, Fiorini, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, Fol, P, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Fu, J, Furfaro, E, Torreira, A, Galli, D, Gallorini, S, Gambetta, S, Gandelman, M, Gandini, P, Gao, Y, Pardiñas, J, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gavardi, L, Geraci, A, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gianelle, A, Gianì, S, Gibson, V, Giubega, L, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gotti, C, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Griffith, P, Grillo, L, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hamilton, B, Hampson, T, Han, X, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, He, J, Head, T, Heijne, V, Hennessy, K, Henrard, P, Henry, L, Hernando Morata, J, Van Herwijnen, E, Heß, M, Hicheur, A, Hill, D, Hoballah, M, Hombach, C, Hulsbergen, W, Hunt, P, Hussain, N, Hutchcroft, D, Hynds, D, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jalocha, J, Jans, E, Jaton, P, Jawahery, A, Jing, F, John, M, Johnson, D, Jones, C, Joram, C, Jost, B, Jurik, N, Kandybei, S, Kanso, W, Karacson, M, Karbach, T, Karodia, S, Kelsey, M, Kenyon, I, Ketel, T, Khanji, B, Khurewathanakul, C, Klaver, S, Klimaszewski, K, Kochebina, O, Kolpin, M, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kurek, K, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanfranchi, G, Langenbruch, C, Langhans, B, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Likhomanenko, T, Liles, M, Lindner, R, Linn, C, Lionetto, F, Liu, B, Lohn, S, Longstaff, I, Lopes, J, Lopez March, N, Lowdon, P, Lu, H, Lucchesi, D, Luo, H, Lupato, A, Luppi, E, Lupton, O, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Malinin, A, Manca, G, Mancinelli, G, Mapelli, A, Maratas, J, Marchand, J, Marconi, U, Marin Benito, C, Marino, P, Märki, R, Marks, J, Martellotti, G, Martens, A, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Martins Tostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Maurin, B, Mazurov, A, Mccann, M, Mccarthy, J, Mcnab, A, Mcnulty, R, Mcskelly, B, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, 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J, Smith, M, Snoek, H, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Sridharan, S, Stagni, F, Stahl, M, Stahl, S, Steinkamp, O, Stenyakin, O, Stevenson, S, Stoica, S, Stone, S, Storaci, B, Stracka, S, Straticiuc, M, Straumann, U, Stroili, R, Subbiah, V, Sun, L, Sutcliffe, W, Swientek, K, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Tellarini, G, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tresch, M, Trisovic, A, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubeda Garcia, M, Ukleja, A, Ustyuzhanin, A, Uwer, U, Vacca, C, Vagnoni, V, Valenti, G, Vallier, A, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vieites Diaz, M, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, De Vries, J, Waldi, R, Wallace, C, Wallace, R, Walsh, J, Wandernoth, S, Wang, J, Ward, D, Watson, N, Websdale, D, Whitehead, M, Wicht, J, Wiedner, D, Wilkinson, G, Williams, M, Wilschut, H, Wilson, F, Wimberley, J, Wishahi, J, Wislicki, W, Witek, M, Wormser, G, Wotton, S, Wright, S, Wyllie, K, Xie, Y, Xing, Z, Xu, Z, Yang, Z, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A, T. , P, Zvyagin, A., CALVI, MARTA, CASSINA, LORENZO, GOTTI, CLAUDIO, KHANJI, BASEM, KUCHARCZYK, MARCIN, and PESSINA, GIANLUIGI EZIO
Abstract: Measuring cross-sections at the LHC requires the luminosity to be determined accurately at each centre-of-mass energy s. In this paper results are reported from the luminosity calibrations carried out at the LHC interaction point 8 with the LHCb detector for s = 2.76, 7 and 8 TeV (proton-proton collisions) and for sNN = 5 TeV (proton-lead collisions). Both the "van der Meer scan" and "beam-gas imaging" luminosity calibration methods were employed. It is observed that the beam density profile cannot always be described by a function that is factorizable in the two transverse coordinates. The introduction of a two-dimensional description of the beams improves significantly the consistency of the results. For proton-proton interactions at s = 8 TeV a relative precision of the luminosity calibration of 1.47% is obtained using van der Meer scans and 1.43% using beam-gas imaging, resulting in a combined precision of 1.12%. Applying the calibration to the full data set determines the luminosity with a precision of 1.16%. This represents the most precise luminosity measurement achieved so far at a bunched-beam hadron collider.
Published: 2014

43. Characterization of the Hamamatsu R11265-103-M64 multi-anode photomultiplier tube

Author: Cadamuro, L, Calvi, M, Cassina, L, Giachero, A, Gotti, C, Khanji, B, Maino, M, Matteuzzi, C, Pessina, G, CALVI, MARTA, CASSINA, LORENZO, GIACHERO, ANDREA, GOTTI, CLAUDIO, KHANJI, BASEM, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, Cadamuro, L, Calvi, M, Cassina, L, Giachero, A, Gotti, C, Khanji, B, Maino, M, Matteuzzi, C, Pessina, G, CALVI, MARTA, CASSINA, LORENZO, GIACHERO, ANDREA, GOTTI, CLAUDIO, KHANJI, BASEM, MAINO, MATTEO, and PESSINA, GIANLUIGI EZIO
Abstract: The aim of this paper is to fully characterize the new multi-anode photomultiplier tube R11265-103-M64, produced by Hamamatsu. Its high effective active area (77%), its pixel size, the low dark signal rate and the capability to detect single photon signals make this tube suitable for an application in high energy physics, such as for RICH detectors. Four tubes and two different bias voltage dividers have been tested. The results of a standard characterization of the gain and the anode uniformity, the dark signal rate, the cross-talk and the device behaviour as a function of temperature have been studied. The behaviour of the tube is studied in a longitudinal magnetic field up to 100 Gauss. Shields made of a high permeability material are also investigated. The deterioration of the device performance due to long time operation at intense light exposure is studied. A quantitative analysis of the variation of the gain and the dark signals rate due to the aging is described. © 2014 IOP Publishing Ltd and Sissa Medialab srl.
Published: 2014

44. First characterization of the Hamamatsu R11265 multi-anode photomultiplier tube

Author: Calvi, M, Cassina, L, Giachero, A, Gotti, C, Maino, M, Matteuzzi, C, Pessina, G, CALVI, MARTA, CASSINA, LORENZO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, Calvi, M, Cassina, L, Giachero, A, Gotti, C, Maino, M, Matteuzzi, C, Pessina, G, CALVI, MARTA, CASSINA, LORENZO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, and PESSINA, GIANLUIGI EZIO
Abstract: The characterization of the new Hamamatsu R11265-103-M64 multi-anode photomultiplier tube is presented. The sample available in our laboratory was tested and in particular the response to single photon was extensively studied. The gain, the anode uniformity and the dark current were measured. The tube behaviour in a longitudinal magnetic field up to 100 G was studied and the gain loss due to the ageing was quantified. The characteristics and performance of the photomultiplier tube make the R11265-103-M64 particularly tailored for an application in high energy physics experiments, such as in the LHCb Ring Imaging Cherenkov (RICH) detector at LHC.
Published: 2014

45. First bolometric measurement of the two neutrino double beta decay of 100Mo with a ZnMoO4 crystals array

Author: Cardani, L, Gironi, L, Iachellini, N, Pattavina, L, Beeman, J, Bellini, F, Casali, N, Cremonesi, O, Dafinei, I, Domizio, S, Ferroni, F, Galashov, E, Gotti, C, Nagorny, S, Orio, F, Pessina, G, Piperno, G, Pirro, S, Previtali, E, Rusconi, C, Tomei, C, Vignati, M, Vignati, M., GIRONI, LUCA, PATTAVINA, LUCA MARIA, CREMONESI, OLIVIERO, GOTTI, CLAUDIO, PESSINA, GIANLUIGI EZIO, PREVITALI, EZIO, Cardani, L, Gironi, L, Iachellini, N, Pattavina, L, Beeman, J, Bellini, F, Casali, N, Cremonesi, O, Dafinei, I, Domizio, S, Ferroni, F, Galashov, E, Gotti, C, Nagorny, S, Orio, F, Pessina, G, Piperno, G, Pirro, S, Previtali, E, Rusconi, C, Tomei, C, Vignati, M, Vignati, M., GIRONI, LUCA, PATTAVINA, LUCA MARIA, CREMONESI, OLIVIERO, GOTTI, CLAUDIO, PESSINA, GIANLUIGI EZIO, and PREVITALI, EZIO
Abstract: The large statistics collected during the operation of a ZnMoO4 array, for a total exposure of 1.3kg day of 100Mo, allowed the first bolometric observation of the two neutrino double beta decay of 100Mo. The observed spectrum of each crystal was reconstructed taking into account the different background contributions due to environmental radioactivity and internal contamination. The analysis of coincidences between the crystals allowed the assignment of constraints to the intensity of the different background sources, resulting in a reconstruction of the measured spectrum down to an energy of ∼300keV. The half-life extracted from the data is T1/2 2v= [7.15 ± 0.37 (stat) ± 0.66 (syst)] × 1018 y. © 2014 IOP Publishing Ltd.
Published: 2014

46. Results from a search for the 0 νββ-decay of Te130

Author: ARNABOLDI, CLAUDIO, BROFFERIO, CHIARA, CAPELLI, SILVIA, CLEMENZA, MASSIMILIANO, CREMONESI, OLIVIERO, FIORINI, ETTORE, GIACHERO, ANDREA, GIULIANI, ANDREA, GORLA, PAOLO, NONES, CLAUDIA, NUCCIOTTI, ANGELO ENRICO LODOVICO, PAVAN, MAURA, PESSINA, GIANLUIGI EZIO, PREVITALI, EZIO, SISTI, MONICA, Artusa, DR, Avignone III, FT, Balata, M, Bandac, I, Barucci, M, Beeman, JW, Bellini, F, Bucci, C, Carbone, L, Cebrian, S, Creswick, RJ, de Waard, A, Di Domizio, S, Dolinski, MJ, Farach, HA, Frossati, G, Guardincerri, E, Gutierrez, TD, Haller, EE, Maruyama, RH, McDonald, RJ, Nisi, S, Norman, EB, Olivieri, E, Pallavicini, M, Palmieri, E, Pasca, E, Pedretti, M, Pirro, S, Risegari, L, Rosenfeld, C, Sangiorgio, S, Smith, AR, Torres, L, Ventura, G, Vignati, M, Arnaboldi, C., Arnaboldi, C, Artusa, D, Avignone III, F, Balata, M, Bandac, I, Barucci, M, Beeman, J, Bellini, F, Brofferio, C, Bucci, C, Capelli, S, Carbone, L, Cebrian, S, Clemenza, M, Cremonesi, O, Creswick, R, de Waard, A, Di Domizio, S, Dolinski, M, Farach, H, Fiorini, E, Frossati, G, Giachero, A, Giuliani, A, Gorla, P, Guardincerri, E, Gutierrez, T, Haller, E, Maruyama, R, Mcdonald, R, Nisi, S, Nones, C, Norman, E, Nucciotti, A, Olivieri, E, Pallavicini, M, Palmieri, E, Pasca, E, Pavan, M, Pedretti, M, Pessina, G, Pirro, S, Previtali, E, Risegari, L, Rosenfeld, C, Sangiorgio, S, Sisti, M, Smith, A, Torres, L, Ventura, G, and Vignati, M
Subjects: FIS/01 - FISICA SPERIMENTALE, Weak-interaction and lepton (including neutrino) aspects of 0nu beta beta-decay, Properties of nuclei with 90, Nuclear lifetimes, width, 0nu beta beta-decay relation with nuclear matrix elements and nuclear structure, Tellurium-130, Double Beta Decay, Bolometers, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
Abstract: A detailed description of the CUORICINO Te130 neutrinoless double-beta (0 νββ) decay experiment is given and recent results are reported. CUORICINO is an array of 62 tellurium oxide (TeO2) bolometers with an active mass of 40.7 kg. It is cooled to ~8-10 mK by a dilution refrigerator shielded from environmental radioactivity and energetic neutrons. It is running in the Laboratori Nazionali del Gran Sasso (LNGS) in Assergi, Italy. These data represent an exposure of 11.83 kg yr or 91 mole-years of Te130. No evidence for 0νββ-decay was observed and a limit of T1/20ν(130Te)≥3. 0×1024y (90% CL) is set. This corresponds to an upper limit on the effective mass, mν, between 0.19 and 0.68 eV when analyzed with the many published nuclear structure calculations. In the context of these nuclear models, the values fall within the range corresponding to the claim of evidence of 0νββ-decay by H. V. Klapdor-Kleingrothaus The experiment continues to acquire data.
Published: 2008

47. Double beta decay and CUORE

Author: PAVAN, MAURA, BROFFERIO, CHIARA, CAPELLI, SILVIA, CREMONESI, OLIVIERO, FIORINI, ETTORE, NUCCIOTTI, ANGELO ENRICO LODOVICO, PESSINA, GIANLUIGI EZIO, PREVITALI, EZIO, SISTI, MONICA, ZANOTTI, LUIGI ERNESTO, Arnaboldi, C, Avignone, F, Beeman, J, Barucci, M, Balata, M, Bucci, C, Cebrian, S, Creswick, R, Carbone, L, Deward, A, Farach, H, Frossati, G, Giuliani, A, Giugni, D, Gorla, P, Haller, E, Irastorza, I, Mcdonald, R, Morales, A, Norman, E, Negri, P, Pedretti, M, Pobes, C, Palmieri, V, Pirro, S, Rosenfeld, C, Smith, A, Ventura, G, Vanzini, M, Giovannelli, F, Mannocchi, G, Pavan, M, Arnaboldi, C, Avignone, F, Beeman, J, Barucci, M, Balata, M, Brofferio, C, Bucci, C, Cebrian, S, Creswick, R, Capelli, S, Carbone, L, Cremonesi, O, Deward, A, Fiorini, E, Farach, H, Frossati, G, Giuliani, A, Giugni, D, Gorla, P, Haller, E, Irastorza, I, Mcdonald, R, Morales, A, Norman, E, Negri, P, Nucciotti, A, Pedretti, M, Pobes, C, Palmieri, V, Pessina, G, Pirro, S, Previtali, E, Rosenfeld, C, Smith, A, Sisti, M, Ventura, G, Vanzini, M, and Zanotti, L
Subjects: Double beta decay, CUORE
Published: 2003

48. Radiation hardness of the CLARO-CMOS, a prototype ASIC for low power and fast single-photon counting in 0.35 micron CMOS technology

Author: Fiorini, M, Andreotti, M, Baldini, W, Calabrese, R, Carniti, P, Ramusino, A, Giachero, A, Gotti, C, Luppi, E, Maino, M, Malaguti, R, Pessina, G, Tomassetti, L, CARNITI, PAOLO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, Tomassetti, L., Fiorini, M, Andreotti, M, Baldini, W, Calabrese, R, Carniti, P, Ramusino, A, Giachero, A, Gotti, C, Luppi, E, Maino, M, Malaguti, R, Pessina, G, Tomassetti, L, CARNITI, PAOLO, GIACHERO, ANDREA, GOTTI, CLAUDIO, MAINO, MATTEO, PESSINA, GIANLUIGI EZIO, and Tomassetti, L.
Abstract: The CLARO-CMOS is a prototype ASIC primarily designed for single-photon counting with multi-anode photomultipliers (Ma-PMTs), that found applications also in the read-out of silicon photomultipliers (SiPMs) and microchannel plates (MCPPMTs). The chip allows fast photon counting up to 40 MHz, with a power consumption of less than 1 mW per channel. The prototype is realised in a 0.35 micron CMOS technology. In the LHCb RICH environment, over ten years of operation at the nominal luminosity for the upgrade, the ASIC must withstand a total fluence of about 6×1012 1 MeV neutron equivalent cm -2 and a total ionising dose of 400 krad. We present the results of multi-step irradiation tests with neutrons and with X-rays up to the fluence of 1014 cm-2 and 4 Mrad, respectively, including measurement of single event effects during irradiation and the evaluation of chip performance before and after each irradiation step. © 2013 IEEE.
Published: 2013

49. First observations of B̄s0→D+D-, Ds+D- and D0D̄0 decays

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Oyanguren Campos, M, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lohn, S, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, Mancinelli, G, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Martins Tostes, D, Massafferri, A, Matev, R, Mathe, Z, Matteuzzi, C, Maurice, E, Mazurov, A, Mccarthy, J, Mcnulty, R, Mcnab, A, Meadows, B, Meier, F, Meissner, M, Merk, M, Milanes, D, Minard, M, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Morello, M, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A, Nguyen, T, Nguyen Mau, C, Nicol, M, Niess, V, Niet, R, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J, Owen, P, Pal, B, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C, Passaleva, G, Patel, G, Patel, M, Patrick, G, Patrignani, C, Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Pérez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petridis, K, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pietrzyk, B, Pilař, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Punzi, G, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reid, M, Dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Rives Molina, V, Roa Romero, D, Robbe, P, Rodrigues, E, Rodriguez Perez, P, Roiser, S, Romanovsky, V, Romero Vidal, A, Rouvinet, J, Ruf, T, Ruffini, F, Ruiz, H, Ruiz Valls, P, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sanmartin Sedes, B, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tonelli, D, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ubeda Garcia, M, Ukleja, A, Urner, D, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A, Zvyagin, A., CALVI, MARTA, KHANJI, BASEM, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Aquines Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, Van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, Van Den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Oyanguren Campos, M, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Garra Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Grünberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, Van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, J, Lefèvre, R, Leflat, A, Lefrançois, J, Leo, S, Leroy, O, Leverington, B, Li, Y, Li Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, Von Loeben, J, Lohn, S, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, Machikhiliyan, I, Maciuc, F, Maev, O, Malde, S, Manca, G, 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Abstract: First observations and measurements of the branching fractions of the B̄s0→D+D-, B̄s0→Ds+D- and B̄s0→D0D̄0 decays are presented using 1.0 fb -1 of data collected by the LHCb experiment. These branching fractions are normalized to those of B̄0→D +D-, B0→D-Ds+ and B-→D0Ds- , respectively. An excess of events consistent with the decay B ̄0→D0D̄0 is also seen, and its branching fraction is measured relative to that of B-→D0Ds-. Improved measurements of the branching fractions B(B̄s0→Ds+Ds-) and B(B -→D0Ds-) are reported, each relative to B(B0→D -Ds+). The ratios of branching fractions are B(B̄s0→D +D-)B(B̄0→D+D -)=1.08±0.20±0.10, B(B̄s0→Ds+D -)B(B0→D-Ds+)=0.050±0.008±0.004, B(B̄s0→D0D̄0)B(B-→D0Ds-)=0. 019±0.003±0.003, B(B̄0→D0D ̄0)B(B-→D0Ds-)<0.0024 at 90% CL, B(B̄s0→Ds+Ds-)B(B0→D-Ds+)=0.56±0.03±0. 04, B(B-→D0Ds-)B(B0→D-Ds+)=1.22±0. 02±0.07, where the uncertainties are statistical and systematic, respectively. © 2013 CERN.
Published: 2013

50. Observations of B-S(0) ->psi(2S)eta and B-(s)(0) ->psi(2S)pi(+)pi(-) decays

Author: Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, A, Amato, S, Amerio, S, Amhis, Y, Anderlini, L, Anderson, J, Andreassen, R, Appleby, R, Gutierrez, O, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J, Baesso, C, Balagura, V, Baldini, W, Barlow, R, Barschel, C, Barsuk, S, Barter, W, Bauer, T, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bettler, M, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjornstad, P, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T, Bowen, E, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N, Brown, H, Burducea, I, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carranza Mejia, H, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, C, Charles, M, Charpentier, P, Chen, P, Chiapolini, N, Chrzaszcz, M, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P, Clemencic, M, Cliff, H, Closier, J, Coca, C, Coco, V, Cogan, J, Cogneras, E, Collins, P, Comerma Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Couturier, B, Cowan, G, Craik, D, Cunliffe, S, Currie, R, D'Ambrosio, C, David, P, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, J, De Oyanguren Campos, M, De Paula, L, De Silva, W, De Simone, P, Decamp, D, Deckenhoff, M, Del Buono, L, Derkach, D, Deschamps, O, Dettori, F, Di Canto, A, Dijkstra, H, Dogaru, M, Donleavy, S, Dordei, F, Dosil Suarez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Elsby, D, Falabella, A, Faerber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Ferguson, D, Fernandez Albor, V, Ferreira Rodrigues, F, Ferro Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Furfaro, E, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garofoli, J, Garosi, P, Tico, J, Garrido, L, Gaspar, C, Gauld, R, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gibson, V, Gligorov, V, Goebel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Gandara, M, Graciani Diaz, R, Cardoso, L, Grauges, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Gruenberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S, Hall, S, Hampson, T, Hansmann Menzemer, S, Harnew, N, Harnew, S, Harrison, J, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J, van Herwijnen, E, Hicks, E, Hill, D, Hoballah, M, Hombach, C, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Hussain, N, Hutchcroft, D, Hynds, D, Iakovenko, V, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jans, E, Jaton, P, Jing, F, John, M, Johnson, D, Jones, C, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T, Kenyon, I, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kochebina, O, Komarov, I, Koopman, R, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J, Lefevre, R, Leflat, A, Lefrancois, J, Leo, S, Leroy, O, Leverington, B, Li, Y, Gioi, L, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, von Loeben, J, Lohn, S, Lopes, J, Lopez Asamar, E, Lopez March, N, Lu, H, Lucchesi, D, Luisier, J, Luo, H, Machefert, F, 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Pavel Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Altarelli, M, Perazzini, S, Perego, D, Perez Trigo, E, Perez Calero Yzquierdo, A, Perret, P, Perrin Terrin, M, Pessina, G, Petridis, K, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pietrzyk, B, Pilar, T, Pinci, D, Playfer, S, Plo Casasus, M, Polci, F, Polikarpov, S, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Navarro, A, Punzi, G, Qian, W, Rademacker, J, Rakotomiaramanana, B, Rangel, M, Raniuk, I, Rauschmayr, N, Raven, G, Redford, S, Reid, M, dos Reis, A, Ricciardi, S, Richards, A, Rinnert, K, Rives Molina, V, Romero, D, Robbe, P, Rodrigues, E, Rodriguez Perez, P, Roiser, S, Romanovsky, V, Romero Vidal, A, Rouvinet, J, Ruf, T, Ruffini, F, Ruiz, H, Ruiz Valls, P, Sabatino, G, Saborido Silva, J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sanmartin Sedes, B, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Coutinho, R, Skwarnicki, T, Smith, N, Smith, E, Smith, M, Sokoloff, M, Soler, F, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V, Swientek, S, Syropoulos, V, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teklishyn, M, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Tonelli, D, Topp Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M, Tresch, M, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Garcia, M, Ukleja, A, Urner, D, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vilasis Cardona, X, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voss, C, Voss, H, Waldi, R, Wallace, R, Wandernoth, S, Wang, J, Ward, D, Watson, N, Webber, A, Websdale, D, Whitehead, M, Wicht, J, Wiechczynski, J, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M, Wilson, F, Wishahi, J, Witek, M, Wotton, S, Wright, S, Wu, S, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zvyagin, A, McCarthy, J, McNulty, R, Zvyagin, A., CALVI, MARTA, KHANJI, BASEM, KUCHARCZYK, MARCIN, PEREGO, DAVIDE LUIGI, PESSINA, GIANLUIGI EZIO, Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, 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Abstract: First observations of the B-S(0) ->psi(2S)eta, B-(s)(0) ->psi(2S)pi(+)pi(-) decays are made using a dataset corresponding to an integrated luminosity of 1.0 fb(-1) collected by the LHCb experiment in proton proton collisions at a centre-of-mass energy of root s = 7 TeV. The ratios of the branching fractions of each of the *(2S) modes with respect to the corresponding J/psi decays are B(B-s(0) ->psi(2S)eta)/B(B-s(0) -> J(2S)eta) = 0.83 +/- 0.14 (stat) +/- 0.12 (B), B(B0 ->psi(2S)pi(+)pi(-))/B(B0 -> J/psi pi(+)pi(-)) = 0.56 +/- 0.07 (stat) +/- 0.05 (syst) +/- 0.01 (B), B(B0 ->psi(2S)pi(+)pi(-))/B(B-s(0) -> J/psi pi(+)pi(-)) = 0.34 +/- 0.04 (stat) +/- 0.03 (syst) +/- 0.01 (B). where the third uncertainty corresponds to the uncertainties of the dilepton branching fractions of the J/* and psi(28) meson decays. (C) 2013 CERN. Published by Elsevier BA/. All rights reserved.
Published: 2013

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