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5,859 results on '"A. Giorgi, M."'

1. RadioLab project: knowledge of radon gas in Italy

Author

Ambrosino, F., La Verde, G., Colucci, M., Fanti, V., Barrale, D., Caciolli, A., Hemmer, S., De Giorgi, M. L., Ventura, A., Immè, J., Pagano, A., Budinich, M., Vascotto, M., Montalbano, V., Capua, M., Tucci, R., Chiosso, M., Visca, L., Groppi, F., and Pugliese, M.

Published
2024
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3. Search for $B$ Mesogenesis at BABAR

Author

BABAR Collaboration, Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Cheaib, R., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kozyrev, E. A., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Lankford, A. J., Dey, B., Gary, J. W., Long, O., Eisner, A. M., Lockman, W. S., Vazquez, W. Panduro, Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Li, Y., Lin, D. X., Middleton, S., Miyashita, T. S., Ongmongkolkul, P., Oyang, J., Porter, F. C., Röhrken, M., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Smith, J. G., Wagner, S. R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B. J., Lacker, H. M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Diberder, F. Le, Lutz, A. M., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C. L., Denig, A. G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Jawahery, A., Roberts, D. A., Cowan, R., Robertson, S. H., Seddon, R. M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C. P., LoSecco, J. M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Zani, L., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M. R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., MacFarlane, D. B., Muller, D. R., Neal, H., Ratcliff, B. N., Roodman, A., Sullivan, M. K., Va'vra, J., Wisniewski, W. J., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Ahmed, H., Tasneem, N., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F. U., King, G. J., Kowalewski, R., Lueck, T., Miller, C., Nugent, I. M., Roney, J. M., Sobie, R. J., Gershon, T. J., Harrison, P. F., Latham, T. E., Prepost, R., and Wu, S. L.

Subjects
High Energy Physics - Experiment
Abstract

A new mechanism has been proposed to simultaneously explain the presence of dark matter and the matter-antimatter asymmetry in the universe. This scenario predicts exotic $B$ meson decays into a baryon and a dark sector anti-baryon ($\psi_D$) with branching fractions accessible at $B$ factories. We present a search for $B \rightarrow \Lambda \psi_D$ decays using data collected by the $BABAR$ experiment at SLAC. This reaction is identified by fully reconstructing the accompanying $B$ meson and requiring the presence of a single $\Lambda$ baryon in the remaining particles. No significant signal is observed, and bounds on the $B \rightarrow \Lambda \psi_D$ branching fraction are derived in the range $0.13 - 5.2\times 10^{-5}$ for $1.0 < m_{\psi_D} < 4.2$ GeV/$c^{2}$. These results set strong constraints on the parameter space allowed by the theory.

Published
2023
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4. HIKE, High Intensity Kaon Experiments at the CERN SPS

Author

Gil, E. Cortina, Jerhot, J., Lurkin, N., Numao, T., Velghe, B., Wong, V. W. S., Bryman, D., Bician, L., Hives, Z., Husek, T., Kampf, K., Koval, M., Akmete, A. T., Aliberti, R., Büscher, V., Di Lella, L., Doble, N., Peruzzo, L., Schott, M., Wahl, H., Wanke, R., Döbrich, B., Montalto, L., Rinaldi, D., Dettori, F., Cardini, A., Lai, A., Bomben, L., Carsi, S., Prest, M., Selmi, A., Lezzani, G., Monti-Guarnieri, P., Perna, L., Dalpiaz, P., Guidi, V., Mazzolari, A., Neri, I., Petrucci, F., Soldani, M., Bandiera, L., Ramusino, A. Cotta, Gianoli, A., Romagnoni, M., Sytov, A., Lenti, M., Panichi, I., Ruggiero, G., Bizzeti, A., Bucci, F., Antonelli, A., Di Meco, E., Lanfranchi, G., Martellotti, S., Martini, M., Moulson, M., Paesani, D., Sarra, I., Spadaro, T., Tinti, G., Vallazza, E., Ambrosino, F., Giordano, R., Massarotti, P., Napolitano, M., Saracino, G., Di Donato, C., D'Ambrosio, G., D'Errico, M., Mirra, M., Neshatpour, S., Fiorenza, R., Rosa, I., De Salvador, D., Sgarbossa, F., Anzivino, G., Germani, S., Volpe, R., Cenci, P., Cutini, S., Duk, V., Lubrano, P., Pepe, M., Piccini, M., Costantini, F., Donati, S., Giorgi, M., Giudici, S., Lamanna, G., Pedreschi, E., Pinzino, J., Sozzi, M., Fantechi, R., Giusti, V., Spinella, F., Mannelli, I., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Cicero, F. Lo, Lonardo, A., Turisini, M., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Menichetti, E., Migliore, E., Biino, C., Marchetto, F., Baigarashev, D., Kambar, Y., Kereibay, D., Mukhamejanov, Y., Sakhiyev, S., Olvera, A. Briano, Engelfried, J., Estrada-Tristan, N., Piandani, R., Santos, M. A. Reyes, Rivera, K. A. Rodriguez, Boboc, P. C., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Blazek, T., Cerny, V., Kleimenova, A., Kucerova, Z., Santos, D. Martinez, Prouve, C., Boretto, M., Brizioli, F., Ceccucci, A., Corvino, M., Danielsson, H., Duval, F., Gamberini, E., Guida, R., Holzer, E. B., Jenninger, B., Miotto, G. Lehmann, Lichard, P., Massri, K., Minucci, E., Perrin-Terrin, M., Ryjov, V., Swallow, J., Van Dijk, M., Zamkovsky, M., Marchevski, R., Gerbershagen, A., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Kenworthy, C., Lazzeroni, C., Parkinson, C., Romano, A., Sanders, J., Shaikhiev, A., Tomczak, A., Heath, H., Britton, D., Norton, A., Protopopescu, D., Dainton, J. B., Jones, R. W. L., De Santo, A., Salvatore, F., Cooper, P., Coward, D., and Rubin, P.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

A timely and long-term programme of kaon decay measurements at a new level of precision is presented, leveraging the capabilities of the CERN Super Proton Synchrotron (SPS). The proposed programme is firmly anchored on the experience built up studying kaon decays at the SPS over the past four decades, and includes rare processes, CP violation, dark sectors, symmetry tests and other tests of the Standard Model. The experimental programme is based on a staged approach involving experiments with charged and neutral kaon beams, as well as operation in beam-dump mode. The various phases will rely on a common infrastructure and set of detectors., Comment: Letter of Intent submitted to CERN SPSC. Address all correspondence to hike-eb@cern.ch

Published
2022

5. Sensitivity projections for a dual-phase argon TPC optimized for light dark matter searches through the ionization channel

Author

Agnes, P., Ahmad, I., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Amaudruz, P., Corona, M. Atzori, Auty, D. J., Ave, M., Avetisov, I. Ch., Avetisov, R. I., Azzolini, O., Back, H. O., Balmforth, Z., Barbarian, V., Olmedo, A. Barrado, Barrillon, P., Basco, A., Batignani, G., Berzin, E., Bondar, A., Bonivento, W. M., Borisova, E., Bottino, B., Boulay, M. G., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Capra, A., Caprioli, S., Caravati, M., Cárdenas-Montes, M., Cargioli, N., Carlini, M., Castello, P., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Chashin, S., Chepurnov, A., Chyhyrynets, E, Cicalò, C., Cifarelli, L., Cintas, D., Cocco, V., Vilda, E. Conde, Consiglio, L., Copello, S., Covone, G., Cross, S., Czudak, P., D'Aniello, M., D'Auria, S., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Pasquale, S., De Rosa, G., Dellacasa, G., Derbin, A. V., Devoto, A., Di Capua, F., Di Noto, L., Di Stefano, P., Dionisi, C., Dolganov, G., Dordei, F., Doria, L., Erjavec, T., Diaz, M. Fernandez, Fiorillo, G., Franceschi, A., Franchini, P., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Gahan, D., Galbiati, C., Gallina, G., Gallus, G., Garbini, M., Abia, P. Garcia, Gendotti, A., Ghiano, C., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Casanueva, V. Goicoechea, Gola, A., Gorman, D., Diaz, R. Graciani, Grauso, G., di Cortona, G. Grilli, Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Gulino, M., Guo, C., Hackett, B. R., Hall, J. B., Hallin, A. L., Hamer, A., Helton, H., Haranczyk, M., Hessel, T., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E. V., Ianni, An., Ippolito, V., Jillings, C., Kachru, P., Kemp, A. A., Kendziora, C. L., Keppel, G., Khomyakov, A. V., Kimura, M., Kochanek, I., Kondo, K., Korga, G., Koulosousas, S., Kubankin, A., Kuss, M., Kuźniak, M., La Commara, M., Lai, M., Guirriec, E. Le, Leason, E., Li, X., Lidey, L., Lipp, J., Lissia, M., Longo, G., Luzzi, L., Macfadyen, O., Machulin, I. N., Manthos, I., Mapelli, L., Margotti, A., Mari, S. M., Mariani, C., Maricic, J., Marini, A., Martínez, M., Martoff, C. J., Masoni, A., Mavrokoridis, K., Mazzi, A., McDonald, A. B., Messina, A., Milincic, R., Moggi, A., Moharana, A., Monroe, J., Morrocchi, M., Mozhevitina, E. N., Mróz, T., Muratova, V. N., Muscas, C., Musico, P., Nania, R., Napolitano, T., Nessi, M., Nieradka, G., Nikolopoulos, K., Nikulin, I., Nowak, J., Olchansky, K., Oleinik, A., Oleynikov, V., Organtini, P., de Solórzano, A. Ortiz, Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P. A., Pelczar, K., Pellegrino, C., Perotti, F., Pesudo, V., Piacentini, S., Pietropaolo, F., Pino, N., Pira, C., Pocar, A., Poehlmann, D. M., Pordes, S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramachers, Y., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A. L., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Roberts, A., Roberts, C., Rode, J., Rogers, G., Romero, L., Rossi, M., Rubbia, A., Sadashivajois, S., Saffold, T. R., Samoylov, O., Sandford, E., Sanfilippo, S., Santone, D., Santorelli, R., Savarese, C., Scapparone, E., Scioli, G., Semenov, D. A., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Smirnova, T., Smith, B., Sokolov, A., Spangenberg, M., Stefanizzi, R., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Sung, A., Suvorov, Y., Szelc, A. M., Türkoğ, C., Tartaglia, R., Taylor, A., Taylor, J., Tedesco, S., Testera, G., Thieme, K., Thorpe, T. N., Tonazzo, A., Torres-Lara, S., Tricomi, A., Unzhakov, E. V., John, T. Vallivilayil, Van Uffelen, M., Viant, T., Viel, S., Vishneva, A., Vogelaar, R. B., Vossebeld, J., Wada, M., Walczak, M. B., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, L., Wingerter-Seez, I., Wojaczyński, R., Wojcik, Ma. M., Wojcik, Ma., Wright, T., Xie, Y., Yang, C., Zabihi, A., Zakhary, P., Zani, A., Zichichi, A., Zuzel, G., and Zykova, M. P.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

Dark matter lighter than 10 GeV/c$^2$ encompasses a promising range of candidates. A conceptual design for a new detector, DarkSide-LowMass, is presented, based on the DarkSide-50 detector and progress toward DarkSide-20k, optimized for a low-threshold electron-counting measurement. Sensitivity to light dark matter is explored for various potential energy thresholds and background rates. These studies show that DarkSide-LowMass can achieve sensitivity to light dark matter down to the solar neutrino floor for GeV-scale masses and significant sensitivity down to 10 MeV/c$^2$ considering the Migdal effect or interactions with electrons. Requirements for optimizing the detector's sensitivity are explored, as are potential sensitivity gains from modeling and mitigating spurious electron backgrounds that may dominate the signal at the lowest energies.

Published
2022
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6. Strongly enhanced light-matter coupling of a monolayer WS2 from a bound state in the continuum

Author

Maggiolini, E., Polimeno, L., Todisco, F., Di Renzo, A., De Giorgi, M., Ardizzone, V., Mastria, R., Cannavale, A., Pugliese, M., Maiorano, V., Gigli, G., Gerace, D., Sanvitto, D., and Ballarini, D.

Subjects
Physics - Optics
Abstract

Optical bound states in the continuum (BIC) allow to totally prevent a photonic mode from radiating into free space along a given spatial direction. Polariton excitations derived from the strong radiation-matter interaction of a BIC with an excitonic resonance inherit an ultralong radiative lifetime and significant nonlinearities due to their hybrid nature. However, maximizing the light-matter interaction in these structures remains challenging, especially with 2D semiconductors, thus preventing the observation of room temperature nonlinearities of BIC polaritons. Here we show a strong light-matter interaction enhancement at room temperature by coupling monolayer WS2 excitons to a BIC, while optimizing for the electric field strength at the monolayer position through Bloch surface wave confinement. By acting on the grating geometry, the coupling with the active material is maximized in an open and flexible architecture, allowing to achieve a 100 meV photonic bandgap with the BIC in a local energy minimum and a record 70 meV Rabi splitting. Our novel architecture provides large room temperature optical nonlinearities, thus paving the way to tunable BIC-based polariton devices with topologically-protected robustness to fabrication imperfections., Comment: 23 pages, 10 figure

Published
2022
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7. Rydberg polaritons in ReS2 crystals

Author

Coriolano, A., Polimeno, L., Pugliese, M., Cannavale1, A., Trypogeorgos, D., Di Renzo, A., Ardizzone, V., Rizzo1, A., Ballarini, D., Gigli1, G., Maiorano, V., Rosyadi, A. S., Chuang, C. A., Ho, C. H., De Marco, L., Sanvitto, D., and De Giorgi, M.

Subjects
Physics - Optics
Abstract

Rhenium disulfide (ReS2) belongs to group-VII transition metal dichalcogenide (TMDs) with attractive properties such as exceptionally high refractive index and significant oscillator strength, large in-plane birefringence, and good chemical stability. Unlike most other TMDs, the peculiar optical properties of ReS2 persist from bulk to the monolayer, making this material potentially suitable for applications in optical devices. In this work, we demonstrate with unprecedented clarity the strong coupling between cavity modes and excited states, which results in a strong polariton interaction, showing the interest of such materials as a solid-state counterpart of Rydberg atomic systems. Moreover, we definitively clarify the nature of important spectral features, shedding light on some controversial aspects or incomplete interpretations and demonstrating that their origin is due to the interesting combination of the very high refractive index and the large oscillator strength expressed by these TMDs.

Published
2022
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8. Onset of vortex clustering and inverse energy cascade in dissipative quantum fluids

Author

Panico, R., Comaron, P., Matuszewski, M., Lanotte, A. S., Trypogeorgos, D., Gigli, G., De Giorgi, M., Ardizzone, V., Sanvitto, D., and Ballarini, D.

Subjects
Condensed Matter - Quantum Gases
Abstract

Turbulent phenomena are among the most striking effects that both classical and quantum fluids can exhibit. While classical turbulence is ubiquitous in nature, the observation of quantum turbulence requires the precise manipulation of quantum fluids such as superfluid helium or atomic Bose-Einstein condensates. In this work we demonstrate the turbulent dynamics of a 2D quantum fluid of exciton-polaritons, hybrid light-matter quasiparticles, both by measuring the kinetic energy spectrum and showing the onset of vortex clustering. We demonstrate that the formation of clusters of quantum vortices is triggered by the increase of the incompressible kinetic energy per vortex, showing the tendency of the vortex-gas towards highly excited configurations despite the dissipative nature of our system. These results lay the basis for the investigations of quantum turbulence in two-dimensional fluids of light.

Published
2022
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10. Ultrafast, low-energy, all-optical switch in polariton waveguides

Author

Suárez-Forero, D. G., Riminucci, F., Ardizzone, V., Gianfrate, A., Todisco, F., De Giorgi, M., Ballarini, D., Gigli, G., Baldwin, K., Pfeiffer, L., and Sanvitto, D.

Subjects
Physics - Optics, Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science, Quantum Physics
Abstract

The requirement for optical-electrical-optical conversion of signals in optical technologies is often one of the majors bottleneck in terms of speed and energy consumption. The use of dressed photons (also called polaritons), that allows for intrinsic sizable interactions, could significantly improve the performances of optical integrated elements such as switches or optical gates. In this work we demonstrate the ultrafast switch of a laser coupled into a polaritonic waveguide triggered by an optical pulse resonant with the same dispersion but at a lower energy. Our experiments show two effects capable to interrupt the transmission of the laser in two different time ranges: a sub-picosecond time range due to the optical Stark effect, and a picosecond range governed by the creation of a charge reservoir. In the latter regime we found that at certain power of excitation the activation of dark states allows for a long persistence of the switching much beyond the bright exciton lifetime., Comment: Main text: 6 pages, 4 figures. Supplementary Information: 4 pages, 4 figures

Published
2021

13. Polariton Bose-Einstein condensate from a Bound State in the Continuum

Author

Ardizzone, V., Riminucci, F., Zanotti, S., Gianfrate, A., Efthymiou-Tsironi, M., Suarez-Forero, D. G., Todisco, F., De Giorgi, M., Trypogeorgos, D., Gigli, G., Nguyen, H. S., Baldwin, K., Pfeiffer, L., Ballarini, D., Gerace, D., and Sanvitto, D.

Subjects
Physics - Optics
Abstract

Optical bound states in the continuum (BIC) are peculiar topological states that, when realized in a planar photonic crystal lattice, are symmetry-protected from radiating in the far field despite lying within the light cone, i.e., in the energy-momentum dispersion region for which radiation can propagate out of the lattice plane. These BICs possess an invariant topological charge given by the winding number of the polarization vectors, similarly to vortices in quantum fluids, such as superfluid helium and atomic Bose-Einstein condensates. In spite of several reports of optical BICs in patterned dielectric slabs with evidence of lasing, their potential as topologically protected states with theoretically infinite lifetime has not been fully exploited, yet. Here we show Bose-Einstein condensation of polaritons, hybrid light-matter excitations, occuring in a BIC thanks to its peculiar non-radiative nature. The combination of the ultra-long BIC lifetime and the tight confinement of the waveguide geometry allow to achieve an extremely low threshold density for condensation, which is not reached in the dispersion minimum but at a saddle point in reciprocal space. By bridging bosonic condensation and symmetry-protected radiation eigenmodes, we unveil new ways of imparting topological properties onto macroscopic quantum states with unexplored dispersion features. Such an observation may open a route towards energy-efficient polariton condensation in cost-effective integrated devices, ultimately suited for the development of hybrid light-matter optical circuits

Published
2021
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14. Quantum dynamics of Mn$^{2+}$ in dimethylammonium magnesium formate

Author

Orio, M., Bindra, J. K., vanTol, J., Giorgi, M., Dalal, N., and Bertaina, S.

Subjects
Condensed Matter - Materials Science
Abstract

Dimethylammonium magnesium formate, [(CH$_3$)$_2$NH$_2$][Mg(HCOO)$_3$] or DMAMgF, is a model to study high temperature hybrid perovskite-like dielectrics. This compound displays a phase transition from para to ferroelectric at about 260~K. Using multifrequency electron spin resonance in continuous wave and pulsed modes, we herein present the quantum dynamic of Mn$^{2+}$ ion probe in DMAMgF. In the high temperature paraelectric phase, we observe a large distribution of the zero field splitting that is attributed to high local disorder and further supported by DFT computations. In the low temperature ferroelectric phase, a single structure phase is detected and shown to contain two magnetic structures. The complex EPR signals were identifed by the means of Rabi oscillation method combined to crystal fields kernel density estimation.

Published
2021
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15. Separating $^{39}$Ar from $^{40}$Ar by cryogenic distillation with Aria for dark matter searches

Author

DarkSide Collaboration, Agnes, P., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Arba, M., Arpaia, P., Arcelli, S., Ave, M., Avetissov, I. Ch., Avetisov, R. I., Azzolini, O., Back, H. O., Balmforth, Z., Barbarian, V., Olmedo, A. Barrado, Barrillon, P., Basco, A., Batignani, G., Bondar, A., Bonivento, W. M., Borisova, E., Bottino, B., Boulay, M. G., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canesi, E. V., Canci, N., Cappello, G., Caravati, M., C, M., Cargioli, N., Carlini, M., Carnesecchi, F., Castello, P., Castellani, A., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Celano, B., Chashin, S., Chepurnov, A., Cical, C., Cifarelli, L., Cintas, D., Coccetti, F., Cocco, V., Colocci, M., Vilda, E. Conde, Consiglio, L., Copello, S., Corning, J., Covone, G., Czudak, P., D'Aniello, M., D'Auria, S., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Della Valle, M., Dellacasa, G., De Pasquale, S., Derbin, A. V., Devoto, A., Di Noto, L., Di Eusanio, F., Dionisi, C., Di Stefano, P., Dolganov, G., Dongiovanni, D., Dordei, F., Downing, M., Erjavec, T., Falciano, S., Farenzena, S., Diaz, M. Fernandez, Filip, C., Fiorillo, G., Franceschi, A., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Galbiati, C., Garbini, M., Abia, P. Garcia, Gendotti, A., Ghiano, C., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Gligan, M. L., Casanueva, V. Goicoechea, Gola, A., Goretti, A. M., Diaz, R. Graciani, Grigoriev, G. Y., Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Guetti, M., Gulino, M., Guo, C., Hackett, B. R., Hallin, A., Haranczyk, M., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E. V., Ianni, An., Ippolito, V., James, C. C., Jillings, C., Kachru, P., Kemp, A. A., Kendziora, C. L., Keppel, G., Khomyakov, A. V., Kim, S., Kish, A., Kochanek, I., Kondo, K., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., La Commara, M., La Delfa, L., La Grasta, D., Lai, M., Lami, N., Langrock, S., Leyton, M., Li, X., Lidey, L., Lippi, F., Lissia, M., Longo, G., Maccioni, N., Machulin, I. N., Mapelli, L., Marasciulli, A., Margotti, A., Mari, S. M., Maricic, J., Marinelli, M., Mart, M., Rojas, A. D. Martinez, Martini, A., Martoff, C. J., Mascia, M., Masetto, M., Masoni, A., Mazzi, A., McDonald, A. B., Mclaughlin, J., Messina, A., Meyers, P. D., Miletic, T., Milincic, R., Miola, R., Moggi, A., Moharana, A., Moioli, S., Monroe, J., Morisi, S., Morrocchi, M., Mozhevitina, E. N., Mr, T., Muratova, V. N., Murenu, A., Muscas, C., Musenich, L., Musico, P., Nania, R., Napolitano, T., Agasson, A. Navrer, Nessi, M., Nikulin, I., Nowak, J., Oleinik, A., Oleynikov, V., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P. A., Pellegrini, L. A., Pellegrino, C., Pelczar, K., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pinna, T., Pocar, A., Podda, P., Poehlmann, D. M., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A. L., Rescia, S., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Rode, J., Romero, L., Rossi, M., Rubbia, A., Rucaj, M., Sabiu, G. M., Salatino, P., Samoylov, O., S, E., Sandford, E., Sanfilippo, S., Sangiorgio, V. A., Santacroce, V., Santone, D., Santorelli, R., Santucci, A., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Semenov, D. A., Shaw, B., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Smith, B., Sokolov, A., Stefanizzi, R., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Suvorov, Y., Szelc, A. M., Zsücs-Balázs, J. Z., Tartaglia, R., Testera, G., Thorpe, T. N., Tonazzo, A., Torres-Lara, S., Tosti, S., Tricomi, A., Tuveri, M., Unzhakov, E. V., Usai, G., John, T. Vallivilayil, Vescovi, S., Viant, T., Viel, S., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, L., Wojcik, Ma. M., Wojcik, Ma., Xiao, X., Yang, C., Zani, A., Zenobio, F., Zichichi, A., Zuzel, G., and Zykova, M. P.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Aria project consists of a plant, hosting a 350 m cryogenic isotopic distillation column, the tallest ever built, which is currently in the installation phase in a mine shaft at Carbosulcis S.p.A., Nuraxi-Figus (SU), Italy. Aria is one of the pillars of the argon dark-matter search experimental program, lead by the Global Argon Dark Matter Collaboration. Aria was designed to reduce the isotopic abundance of $^{39}$Ar, a $\beta$-emitter of cosmogenic origin, whose activity poses background and pile-up concerns in the detectors, in the argon used for the dark-matter searches, the so-called Underground Argon (UAr). In this paper, we discuss the requirements, design, construction, tests, and projected performance of the plant for the isotopic cryogenic distillation of argon. We also present the successful results of isotopic cryogenic distillation of nitrogen with a prototype plant, operating the column at total reflux.

Published
2021
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17. Sensitivity of future liquid argon dark matter search experiments to core-collapse supernova neutrinos

Author

Agnes, P., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Arcelli, S., Ave, M., Avetissov, I. Ch., Avetisov, R. I., Azzolini, O., Back, H. O., Balmforth, Z., Barbarian, V., Olmedo, A. Barrado, Barrillon, P., Basco, A., Batignani, G., Bondar, A., Bonivento, W. M., Borisova, E., Bottino, B., Boulay, M. G., Buccino, G., Bussino, S., Busto, J., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Cappello, G., Caravati, M., Cárdenas-Montes, M., Carlini, M., Carnesecchi, F., Castello, P., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Celano, B., Chashin, S., Chepurnov, A., Chyhyrynets, E, Cicalò, C., Cifarelli, L., Cintas, D., Coccetti, F., Cocco, V., Colocci, M., Vilda, E. Conde, Consiglio, L., Copello, S., Corning, J., Covone, G., Czudak, P., D'Auria, S., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Della Valle, M., Dellacasa, G., De Pasquale, S., Derbin, A. V., Devoto, A., Di Noto, L., Dionisi, C., Di Stefano, P., Dolganov, G., Dordei, F., Doria, L., Downing, M., Erjavec, T., Diaz, M. Fernandez, Fiorillo, G., Franceschi, A., Franco, D., Frolov, E., Funicello, N., Gabriele, F., Galbiati, C., Garbini, M., Abia, P. Garcia, Gendotti, A., Ghiano, C., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Casanueva, V. Goicoechea, Gola, A., Diaz, R. Graciani, Grigoriev, G. Y., Grobov, A., Gromov, M., Guan, M., Guerzoni, M., Gulino, M., Guo, C., Hackett, B. R., Hallin, A., Haranczyk, M., Hill, S., Horikawa, S., Hubaut, F., Hugues, T., Hungerford, E. V., Ianni, An., Ippolito, V., James, C. C., Jillings, C., Kachru, P., Kemp, A. A., Kendziora, C. L., Keppel, G., Khomyakov, A. V., Kim, S., Kish, A., Kochanek, I., Kondo, K., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., La Commara, M., Lai, M., Langrock, S., Leyton, M., Li, X., Lidey, L., Lissia, M., Longo, G., Machulin, I. N., Mapelli, L., Marasciulli, A., Margotti, A., Mari, S. M., Maricic, J., Martínez, M., Rojas, A. D. Martinez, Martoff, C. J., Masoni, A., Mazzi, A., McDonald, A. B., Mclaughlin, J., Messina, A., Meyers, P. D., Miletic, T., Milincic, R., Moggi, A., Moharana, A., Moioli, S., Monroe, J., Morisi, S., Morrocchi, M., Mozhevitina, E. N., Mróz, T., Muratova, V. N., Muscas, C., Musenich, L., Musico, P., Nania, R., Napolitano, T., Agasson, A. Navrer, Nessi, M., Nikulin, I., Nowak, J., Oleinik, A., Oleynikov, V., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pegoraro, P. A., Pelczar, K., Pellegrini, L. A., Pellegrino, C., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pira, C., Pocar, A., Poehlmann, D. M., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D., Raffaelli, F., Ragusa, F., Ramirez, A., Razeti, M., Razeto, A., Renshaw, A. L., Rescia, S., Rescigno, M., Resnati, F., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Rode, J., Romero, L., Rossi, M., Rubbia, A., Salatino, P., Samoylov, O., García, E. Sánchez, Sandford, E., Sanfilippo, S., Santone, D., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Semenov, D. A., Shaw, B., Shchagin, A., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Smith, B., Sokolov, A., Steri, A., Stracka, S., Strickland, V., Stringer, M., Sulis, S., Suvorov, Y., Szelc, A. M., Tartaglia, R., Testera, G., Thorpe, T. N., Tonazzo, A., Torres-Lara, S., Tricomi, A., Unzhakov, E. V., Usai, G., John, T. Vallivilayil, Viant, T., Viel, S., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, L., Wojcik, Ma. M., Wojcik, Ma., Xiao, X., Yang, C., Ye, Z., Zani, A., Zichichi, A., Zuzel, G., and Zykova, M. P.

Subjects
Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

Future liquid-argon DarkSide-20k and ARGO detectors, designed for direct dark matter search, will be sensitive also to core-collapse supernova neutrinos, via coherent elastic neutrino-nucleus scattering. This interaction channel is flavor-insensitive with a high-cross section, enabling for a high-statistics neutrino detection with target masses of $\sim$50~t and $\sim$360~t for DarkSide-20k and ARGO, respectively. Thanks to the low-energy threshold of $\sim$0.5~keV$_{nr}$ achievable by exploiting the ionization channel, DarkSide-20k and ARGO have the potential to discover supernova bursts throughout our galaxy and up to the Small Magellanic Cloud, respectively, assuming a 11-M$_{\odot}$ progenitor star. We report also on the sensitivity to the neutronization burst, whose electron neutrino flux is suppressed by oscillations when detected via charged current and elastic scattering. Finally, the accuracies in the reconstruction of the average and total neutrino energy in the different phases of the supernova burst, as well as its time profile, are also discussed, taking into account the expected background and the detector response., Comment: 21 pages, 8 figures

Published
2020
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18. Precision measurement of the ${\cal B}(\Upsilon(3S)\to\tau^+\tau^-)/{\cal B}(\Upsilon(3S)\to\mu^+\mu^-)$ ratio

Author

Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kozyrev, E. A., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Lankford, A. J., Dey, B., Gary, J. W., Long, O., Eisner, A. M., Lockman, W. S., Vazquez, W. Panduro, Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Li, Y., Lin, D. X., Miyashita, T. S., Ongmongkolkul, P., Oyang, J., Porter, F. C., Röhrken, M., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Smith, J. G., Wagner, S. R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B. J., Lacker, H. M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Diberder, F. Le, Lutz, A. M., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C. L., Denig, A. G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Jawahery, A., Roberts, D. A., Cowan, R., Robertson, S. H., Seddon, R. M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C. P., LoSecco, J. M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Zani, L., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M. R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., MacFarlane, D. B., Muller, D. R., Neal, H., Ratcliff, B. N., Roodman, A., Sullivan, M. K., Va'vra, J., Wisniewski, W. J., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Ahmed, H., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F. U., King, G. J., Kowalewski, R., Lueck, T., Nugent, I. M., Roney, J. M., Sibidanov, A., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Prepost, R., and Wu, S. L.

Subjects
High Energy Physics - Experiment
Abstract

We report on a precision measurement of the ratio ${\cal R}_{\tau\mu}^{\Upsilon(3S)} = {\cal B}(\Upsilon(3S)\to\tau^+\tau^-)/{\cal B}(\Upsilon(3S)\to\mu^+\mu^-)$ using data collected with the BaBar detector at the SLAC PEP-II $e^+e^-$ collider. The measurement is based on a 28 fb$^{-1}$ data sample collected at a center-of-mass energy of 10.355 GeV corresponding to a sample of 122 million $\Upsilon(3S)$ mesons. The ratio is measured to be ${\cal R}_{\tau\mu}^{\Upsilon(3S)} = 0.966 \pm 0.008_\mathrm{stat} \pm 0.014_\mathrm{syst}$ and is in agreement with the Standard Model prediction of 0.9948 within 2 standard deviations. The uncertainty in ${\cal R}_{\tau\mu}^{\Upsilon(3S)}$ is almost an order of magnitude smaller than the only previous measurement., Comment: 8 pages, 4 figures, 3 tables

Published
2020
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19. Search for lepton-flavor violating decays $D^{0}\rightarrow X^{0}e^{\pm}\mu^{\mp}$

Author

BaBar Collaboration, Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kozyrev, E. A., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Lankford, A. J., Dey, B., Gary, J. W., Long, O., Eisner, A. M., Lockman, W. S., Panduro, W., Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Li, Y., Lin, D. X., Miyashita, T. S., Ongmongkolkul, P., Oyang, J., Porter, F. C., R, M., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Smith, J. G., Wagner, S. R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Shuve, B. J., Lacker, H. M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Diberder, F. Le, Lutz, A. M., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C. L., Denig, A. G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Jawahery, A., Roberts, D. A., Cowan, R., Robertson, S. H., Seddon, R. M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Taras, P., De, G., Sciacca, C., Raven, G., Jessop, C. P., LoSecco, J. M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben, E., Bomben, M., Bonneaud, G. R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Zani, L., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., B, C., Dittrich, S., Gr, O., He, M., Leddig, T., Vo, C., Waldi, R., Adye, T., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M. R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., MacFarlane, D. B., Muller, D. R., Neal, H., Ratcliff, B. N., Roodman, A., Sullivan, M. K., Va, J., Wisniewski, W. J., Purohit, M. V., Wilson, J. R., Randle, A., Sekula, S. J., Ahmed, H., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F. U., King, G. J., Kowalewski, R., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Prepost, R., and Wu, S. L.

Subjects
High Energy Physics - Experiment
Abstract

We present a search for seven lepton-flavor-violating neutral charm decays of the type $D^{0}\rightarrow X^{0} e^{\pm} \mu^{\mp}$, where $X^{0}$ represents a $\pi^{0}$, $K^{0}_{\rm S}$, $\bar{K^{*0}}$, $\rho^{0}$, $\phi$, $\omega$, or $\eta$ meson. The analysis is based on $468$ fb$^{-1}$ of $e^+e^-$ annihilation data collected at or close to the $\Upsilon(4S)$ resonance with the BaBar detector at the SLAC National Accelerator Laboratory. No significant signals are observed, and we establish 90\% confidence level upper limits on the branching fractions in the range $(5.0 - 22.5)\times 10^{-7}$. The limits are between one and two orders of magnitude more stringent than previous measurements., Comment: 12 pages, 2 figures, to be submitted to Physical Review D. arXiv admin note: text overlap with arXiv:1905.00608

Published
2020
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20. SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range

Author

The DarkSide collaboration, Aalseth, C. E., Abdelhakim, S., Agnes, P., Ajaj, R., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Ameli, F., Anstey, J., Antonioli, P., Arba, M., Arcelli, S., Ardito, R., Arnquist, I. J., Arpaia, P., Asner, D. M., Asunskis, A., Ave, M., Back, H. O., Barbaryan, V., Olmedo, A. Barrado, Batignani, G., Bisogni, M. G., Bocci, V., Bondar, A., Bonfini, G., Bonivento, W., Borisova, E., Bottino, B., Boulay, M. G., Bunker, R., Bussino, S., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Candela, A., Cantini, C., Caravati, M., Cariello, M., Carnesecchi, F., Castellani, A., Castello, P., Cavalcante, P., Cavazza, D., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Celano, B., Cereseto, R., Chashin, S., Cheng, W., Chepurnov, A., Cicalò, C., Cifarelli, L., Citterio, M., Coccetti, F., Cocco, V., Colocci, M., Vilda, E. Conde, Consiglio, L., Cossio, F., Covone, G., Crivelli, P., D'Antone, I., D'Incecco, M., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., De Cecco, S., De Deo, M., De Falco, A., De Gruttola, D., De Guido, G., De Rosa, G., Dellacasa, G., Demontis, P., De Pasquale, S., Derbin, A. V., Devoto, A., Di Eusanio, F., Di Noto, L., Di Pietro, G., Di Stefano, P., Dionisi, C., Dolganov, G., Dordei, F., Downing, M., Edalatfar, F., Empl, A., Diaz, M. Fernandez, Filip, C., Fiorillo, G., Fomenko, K., Franceschi, A., Franco, D., Frolov, E., Froudakis, G. E., Funicello, N., Gabriele, F., Gabrieli, A., Galbiati, C., Garbini, M., Abia, P. Garcia, Fora, D. Gascón, Gendotti, A., Ghiano, C., Ghisi, A., Giampa, P., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Gligan, M. L., Gorchakov, O., Grab, M., Diaz, R. Graciani, Grassi, M., Grate, J. W., Grobov, A., Gromov, M., Guan, M., Guerra, M. B. B., Guerzoni, M., Gulino, M., Haaland, R. K., Hackett, B. R., Hallin, A., Haranczyk, M., Harrop, B., Hoppe, E. W., Horikawa, S., Hosseini, B., Hubaut, F., Humble, P., Hungerford, E. V., Ianni, An., Ilyasov, A., Ippolito, V., Jillings, C., Keeter, K., Kendziora, C. L., Kochanek, I., Kondo, K., Kopp, G., Korablev, D., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., La Commara, M., La Delfa, L., Lai, M., Lebois, M., Lehnert, B., Levashko, N., Li, X., Liqiang, Q., Lissia, M., Lodi, G. U., Longo, G., Lussana, R., Luzzi, L., Machado, A. A., Machulin, I. N., Mandarano, A., Manecki, S., Mapelli, L., Margotti, A., Mari, S. M., Mariani, M., Maricic, J., Marinelli, M., Marras, D., Martínez, M., Rojas, A. D. Martinez, Mascia, M., Mason, J., Masoni, A., McDonald, A. B., Messina, A., Miletic, T., Milincic, R., Moggi, A., Moioli, S., Monroe, J., Morrocchi, M., Mroz, T., Mu, W., Muratova, V. N., Murphy, S., Muscas, C., Musico, P., Nania, R., Napolitano, T., Agasson, A. Navrer, Nessi, M., Nikulin, I., Nosov, V., Nowak, J. A., Oleinik, A., Oleynikov, V., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Pazzona, F., Peeters, S., Pegoraro, P. A., Pelczar, K., Pellegrini, L. A., Pellegrino, C., Pelliccia, N., Perotti, F., Pesudo, V., Picciau, E., Pietropaolo, F., Pocar, A., Pollmann, T. R., Portaluppi, D., Poudel, S. S., Pralavorio, P., Price, D., Radics, B., Raffaelli, F., Ragusa, F., Razeti, M., Regenfus, C., Renshaw, A. L., Rescia, S., Rescigno, M., Retiere, F., Rignanese, L. P., Ripoli, C., Rivetti, A., Rode, J., Romani, A., Romero, L., Rossi, N., Rubbia, A., Sala, P., Salatino, P., Samoylov, O., García, E. Sánchez, Sandford, E., Sanfilippo, S., Sant, M., Santone, D., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Segreto, E., Seifert, A., Semenov, D. A., Shchagin, A., Sheshukov, A., Siddhanta, S., Simeone, M., Singh, P. N., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Sobrero, G., Sokolov, A., Sotnikov, A., Stainforth, R., Steri, A., Stracka, S., Strickland, V., Suffritti, G. B., Sulis, S., Suvorov, Y., Szelc, A. M., Tartaglia, R., Testera, G., Thorpe, T., Tonazzo, A., Tosi, A., Tuveri, M., Unzhakov, E. V., Usai, G., Vacca, A., Vázquez-Jáuregui, E., Viant, T., Viel, S., Villa, F., Vishneva, A., Vogelaar, R. B., Wahl, J., Walding, J. J., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, R., Wilson, J., Wojcik, Ma. M., Wojcik, Ma., Wu, S., Xiao, X., Yang, C., Ye, Z., Zuffa, M., and Zuzel, G.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract

Proportional electroluminescence (EL) in noble gases is used in two-phase detectors for dark matter searches to record (in the gas phase) the ionization signal induced by particle scattering in the liquid phase. The "standard" EL mechanism is considered to be due to noble gas excimer emission in the vacuum ultraviolet (VUV). In addition, there are two alternative mechanisms, producing light in the visible and near infrared (NIR) ranges. The first is due to bremsstrahlung of electrons scattered on neutral atoms ("neutral bremsstrahlung", NBrS). The second, responsible for electron avalanche scintillation in the NIR at higher electric fields, is due to transitions between excited atomic states. In this work, we have for the first time demonstrated two alternative techniques of the optical readout of two-phase argon detectors, in the visible and NIR range, using a silicon photomultiplier matrix and electroluminescence due to either neutral bremsstrahlung or avalanche scintillation. The amplitude yield and position resolution were measured for these readout techniques, which allowed to assess the detection threshold for electron and nuclear recoils in two-phase argon detectors for dark matter searches. To the best of our knowledge, this is the first practical application of the NBrS effect in detection science., Comment: 26 pages, 22 figures, 3 tables

Published
2020
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21. Electrically controlled waveguide polariton laser

Author

Suárez-Forero, D. G., Riminucci, F., Ardizzone, V., de Giorgi, M., Dominici, L., Todisco, F., Lerario, G., Pfeiffer, L. N., Gigli, G., Ballarini, D., and Sanvitto, D.

Subjects
Physics - Optics, Condensed Matter - Other Condensed Matter
Abstract

Exciton-polaritons are mixed light-matter particles offering a versatile solid state platform to study many-body physical effects. In this work we demonstrate an electrically controlled polariton laser, in a compact, easy-to-fabricate and integrable configuration, based on a semiconductor waveguide. Interestingly, we show that polariton lasing can be achieved in a system without a global minimum in the polariton energy-momentum dispersion. The surface cavity modes for the laser emission are obtained by adding couples of specifically designed diffraction gratings on top of the planar waveguide, forming an in-plane Fabry-Perot cavity. It is thanks to the waveguide geometry, that we can apply a transverse electric field in order to finely tune the laser energy and quality factor of the cavity modes. Remarkably, we exploit the system sensitivity to the applied electric field to achieve an electrically controlled population of coherent polaritons. The precise control that can be reached with the manipulation of the grating properties and of the electric field provides strong advantages to this device in terms of miniaturization and integrability, two main features for the future development of coherent sources from polaritonic technologies., Comment: 11 pages, 5 figures. Supplementary: 6 pages, 7 figures

Published
2020
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22. Design and construction of a new detector to measure ultra-low radioactive-isotope contamination of argon

Author

The DarkSide Collaboration, Aalseth, C. E., Abdelhakim, S., Acerbi, F., Agnes, P., Ajaj, R., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Amaudruz, P., Ameli, F., Anstey, J., Antonioli, P., Arba, M., Arcelli, S., Ardito, R., Arnquist, I. J., Arpaia, P., Asner, D. M., Asunskis, A., Ave, M., Back, H. O., Olmedo, A. Barrado, Batignani, G., Bisogni, M. G., Bocci, V., Bondar, A., Bonfini, G., Bonivento, W., Borisova, E., Bottino, B., Boulay, M. G., Bunker, R., Bussino, S., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Candela, A., Cantini, C., Caravati, M., Cariello, M., Carnesecchi, F., Carpinelli, M., Castellani, A., Castello, P., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavazza, D., Cavuoti, S., Cebrian, S., Ruiz, J. M. Cela, Celano, B., Cereseto, R., Cheng, W., Chepurnov, A., Cicalò, C., Cifarelli, L., Citterio, M., Cocco, A. G., Cocco, V., Colocci, M., Consiglio, L., Cossio, F., Covone, G., Crivelli, P., D'Antone, I., D'Incecco, M., D'Urso, D., Rolo, M. D. Da Rocha, Dadoun, O., Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Deo, M., De Falco, A., De Filippis, G., De Gruttola, D., De Guido, G., De Rosa, G., Dellacasa, G., Demontis, P., DePaquale, S., Derbin, A. V., Devoto, A., Di Eusanio, F., Di Noto, L., Di Pietro, G., Di Stefano, P., Dionisi, C., Dolganov, G., Dordei, F., Downing, M., Edalatfar, F., Empl, A., Diaz, M. Fernandez, Ferri, A., Filip, C., Fiorillo, G., Fomenko, K., Franceschi, A., Franco, D., Froudakis, G. E., Gabriele, F., Gabrieli, A., Galbiati, C., Abia, P. Garcia, Fora, D. Gascón, Gendotti, A., Ghiano, C., Ghisi, A., Giagu, S., Giampa, P., Giampaolo, R. A., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Gligan, M. L., Gola, A., Gorchakov, O., Grab, M., Diaz, R. Graciani, Granato, F., Grassi, M., Grate, J. W., Grigoriev, G. Y., Grobov, A., Gromov, M., Guan, M., Guerra, M. B. B., Guerzoni, M., Gulino, M., Haaland, R. K., Hackett, B. R., Hallin, A., Harrop, B., Hoppe, E. W., Horikawa, S., Hosseini, B., Hubaut, F., Humble, P., Hungerford, E. V., Ianni, An., Ilyasov, A., Ippolito, V., Jillings, C., Keeter, K., Kendziora, C. L., Kim, S., Kochanek, I., Kondo, K., Kopp, G., Korablev, D., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Kuźniak, M., La Commara, M., La Delfa, L., Lai, M., Langrock, S., Lebois, M., Lehnert, B., Levashko, N., Li, X., Liqiang, Q., Lissia, M., Lodi, G. U., Longo, G., Manzano, R. López, Lussana, R., Luzzi, L., Machado, A. A., Machulin, I. N., Mandarano, A., Mapelli, L., Marcante, M., Margotti, A., Mari, S. M., Mariani, M., Maricic, J., Marinelli, M., Marras, D., Martínez, M., Morales, J. J. Martínez, Rojas, A. D. Martinez, Martoff, C. J., Mascia, M., Mason, J., Masoni, A., Mazzi, A., McDonald, A. B., Messina, A., Meyers, P. D., Miletic, T., Milincic, R., Moggi, A., Moioli, S., Monroe, J., Morrocchi, M., Mroz, T., Mu, W., Muratova, V. N., Murphy, S., Muscas, C., Musico, P., Nania, R., Napolitano, T., Agasson, A. Navrer, Nessi, M., Nikulin, I., Oleinik, A., Oleynikov, V., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pavletcov, V., Pazzona, F., Peeters, S., Pegoraro, P. A., Pelczar, K., Pellegrini, L. A., Pellegrino, C., Pelliccia, N., Perotti, F., Pesudo, V., Picciau, E., Piemonte, C., Pietropaolo, F., Pocar, A., Pollman, T., Portaluppi, D., Poudel, S. S., Pralavorio, P., Price, D., Radics, B., Raffaelli, F., Ragusa, F., Razeti, M., Razeto, A., Regazzoni, V., Regenfus, C., Renshaw, A. L., Rescia, S., Rescigno, M., Retiere, F., Rignanese, L. P., Rivetti, A., Romani, A., Romero, L., Rossi, N., Rubbia, A., Sablone, D., Sala, P., Salatino, P., Samoylov, O., García, E. Sánchez, Sanfilippo, S., Sant, M., Santone, D., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Segreto, E., Seifert, A., Semenov, D. A., Shchagin, A., Sheshukov, A., Siddhanta, S., Simeone, M., Singh, P. N., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Sobrero, G., Sokolov, A., Sotnikov, A., Stainforth, R., Steri, A., Stracka, S., Strickland, V., Suffritti, G. B., Sulis, S., Suvorov, Y., Szelc, A. M., Tartaglia, R., Testera, G., Thorpe, T., Tonazzo, A., Tosi, A., Tuveri, M., Unzhakov, E. V., Usai, G., Vacca, A., Vázquez-Jáuregui, E., Verducci, M., Viant, T., Viel, S., Villa, F., Vishneva, A., Vogelaar, R. B., Wada, M., Wahl, J., Walding, J. J., Wang, H., Wang, Y., Westerdale, S., Wheadon, R. J., Williams, R., Wilson, J., Wojcik, Marcin, Wojcik, Mariusz, Wu, S., Xiao, X., Yang, C., Ye, Z., Zuffa, M., and Zuzel, G.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

Large liquid argon detectors offer one of the best avenues for the detection of galactic weakly interacting massive particles (WIMPs) via their scattering on atomic nuclei. The liquid argon target allows exquisite discrimination between nuclear and electron recoil signals via pulse-shape discrimination of the scintillation signals. Atmospheric argon (AAr), however, has a naturally occurring radioactive isotope, $^{39}$Ar, a $\beta$ emitter of cosmogenic origin. For large detectors, the atmospheric $^{39}$Ar activity poses pile-up concerns. The use of argon extracted from underground wells, deprived of $^{39}$Ar, is key to the physics potential of these experiments. The DarkSide-20k dark matter search experiment will operate a dual-phase time projection chamber with 50 tonnes of radio-pure underground argon (UAr), that was shown to be depleted of $^{39}$Ar with respect to AAr by a factor larger than 1400. Assessing the $^{39}$Ar content of the UAr during extraction is crucial for the success of DarkSide-20k, as well as for future experiments of the Global Argon Dark Matter Collaboration (GADMC). This will be carried out by the DArT in ArDM experiment, a small chamber made with extremely radio-pure materials that will be placed at the centre of the ArDM detector, in the Canfranc Underground Laboratory (LSC) in Spain. The ArDM LAr volume acts as an active veto for background radioactivity, mostly $\gamma$-rays from the ArDM detector materials and the surrounding rock. This article describes the DArT in ArDM project, including the chamber design and construction, and reviews the background required to achieve the expected performance of the detector., Comment: 13 pages, 8 figures. Corresponding author: E. S\'anchez Garc\'ia

Published
2020
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23. Improved calorimetric particle identification in NA62 using machine learning techniques

Author

Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Fedorko, W., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Yu, M., Bryman, D., Fu, J., Hives, Z., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., De Martino, B., Perrin-Terrin, M., Akmete, A. T., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Mazzolari, A., Neri, I., Norton, A., Petrucci, F., Soldani, M., Wahl, H., Bandiera, L., Cotta Ramusino, A., Gianoli, A., Romagnoni, M., Sytov, A., Iacopini, E., Latino, G., Lenti, M., Lo Chiatto, P., Panichi, I., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., D’Errico, M., Di Filippo, D., Fiorenza, R., Giordano, R., Massarotti, P., Mirra, M., Napolitano, M., Rosa, I., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Briano Olvera, A., Engelfried, J., Estrada-Tristan, N., Reyes Santos, M. A., Boboc, P., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Ceoletta, M., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Kenworthy, C., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sanders, J., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., Rubin, P., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Fedotov, S., Gorshanov, K., Gushchin, E., Kekelidze, V., Kereibay, D., Kholodenko, S., Khotyantsev, A., Korotkova, A., Kudenko, Y., Kurochka, V., Kurshetsov, V., Litov, L., Madigozhin, D., Medvedeva, M., Mefodev, A., Misheva, M., Molokanova, N., Movchan, S., Obraztsov, V., Okhotnikov, A., Ostankov, A., Polenkevich, I., Potrebenikov, Yu., Sadovskiy, A., Semenov, V., Shkarovskiy, S., Sugonyaev, V., Yushchenko, O., and Zinchenko, A.

Published
2023
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24. A study of the K+→ π0e+νγ decay

Author

Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Bryman, D., Fu, J., Hives, Z., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., De Martino, B., Perrin-Terrin, M., Akmete, A. T., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Mazzolari, A., Neri, I., Norton, A., Petrucci, F., Soldani, M., Wahl, H., Bandiera, L., Cotta Ramusino, A., Gianoli, A., Romagnoni, M., Sytov, A., Iacopini, E., Latino, G., Lenti, M., Lo Chiatto, P., Panichi, I., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., D’Errico, M., Di Filippo, D., Fiorenza, R., Giordano, R., Massarotti, P., Mirra, M., Napolitano, M., Rosa, I., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Briano Olvera, A., Engelfried, J., Estrada-Tristan, N., Reyes Santos, M. A., Boboc, P., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Ceoletta, M., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Kenworthy, C., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sanders, J., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., Rubin, P., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Fedotov, S., Gorshanov, K., Gushchin, E., Kekelidze, V., Kereibay, D., Kholodenko, S., Khotyantsev, A., Korotkova, A., Kudenko, Y., Kurochka, V., Kurshetsov, V., Litov, L., Madigozhin, D., Medvedeva, M., Mefodev, A., Misheva, M., Molokanova, N., Movchan, S., Obraztsov, V., Okhotnikov, A., Ostankov, A., Polenkevich, I., Potrebenikov, Yu., Sadovskiy, A., Semenov, V., Shkarovskiy, S., Sugonyaev, V., Yushchenko, O., and Zinchenko, A.

Published
2023
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25. Search for dark photon decays to μ+μ− at NA62

Author

Cortina Gil, E., Jerhot, J., Kleimenova, A., Lurkin, N., Zamkovsky, M., Numao, T., Velghe, B., Wong, V. W. S., Bryman, D., Hives, Z., Husek, T., Kampf, K., Koval, M., De Martino, B., Perrin-Terrin, M., Akmete, A. T., Aliberti, R., Di Lella, L., Doble, N., Peruzzo, L., Schuchmann, S., Wahl, H., Wanke, R., Dalpiaz, P., Mazzolari, A., Neri, I., Petrucci, F., Soldani, M., Bandiera, L., Cotta Ramusino, A., Gianoli, A., Romagnoni, M., Sytov, A., Lenti, M., Lo Chiatto, P., Marchevski, R., Panichi, I., Ruggiero, G., Bizzeti, A., Bucci, F., Antonelli, A., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., D’Errico, M., Fiorenza, R., Giordano, R., Massarotti, P., Mirra, M., Napolitano, M., Rosa, I., Saracino, G., Anzivino, G., Brizioli, F., Cenci, P., Duk, V., Lollini, R., Lubrano, P., Pepe, M., Piccini, M., Costantini, F., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Pinzino, J., Sozzi, M., Fantechi, R., Spinella, F., Mannelli, I., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Lonardo, A., Turisini, M., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Menichetti, E., Migliore, E., Biino, C., Filippi, A., Marchetto, F., Soldi, D., Briano Olvera, A., Engelfried, J., Estrada-Tristan, N., Piandani, R., Reyes Santos, M. A., Boboc, P., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Blazek, T., Cerny, V., Kucerova, Z., Volpe, R., Bernhard, J., Bician, L., Boretto, M., Ceccucci, A., Ceoletta, M., Corvino, M., Danielsson, H., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Guida, R., Holzer, E. B., Jenninger, B., Lehmann Miotto, G., Lichard, P., Massri, K., Minucci, E., Noy, M., Ryjov, V., Swallow, J., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Kenworthy, C., Lazzeroni, C., Parkinson, C., Romano, A., Sanders, J., Sergi, A., Shaikhiev, A., Tomczak, A., Heath, H., Britton, D., Norton, A., Protopopescu, D., Dainton, J. B., Gatignon, L., Jones, R. W. L., Cooper, P., Coward, D., Rubin, P., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Fedotov, S., Gorshanov, K., Gushchin, E., Kekelidze, V., Kereibay, D., Kholodenko, S., Khotyantsev, A., Korotkova, A., Kudenko, Y., Kurochka, V., Kurshetsov, V., Litov, L., Madigozhin, D., Mefodev, A., Misheva, M., Molokanova, N., Obraztsov, V., Okhotnikov, A., Polenkevich, I., Potrebenikov, Yu., Sadovskiy, A., Shkarovskiy, S., Sugonyaev, V., and Yushchenko, O.

Published
2023
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26. Chromodynamics of photons in an artificial non-Abelian magnetic Yang-Mills field

Author

Fieramosca, A., Polimeno, L., Lerario, G., De Marco, L., De Giorgi, M., Ballarini, D., Dominici, L., Ardizzone, V., Pugliese, M., Maiorano, V., Gigli, G., Leblanc, C., Malpuech, G., Solnyshkov, D., and Sanvitto, D.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Artificial gauge fields, simulating real phenomenologies that unfold in a vast variety of systems, offer extraordinary possibilities to study extreme physical effects in many different environments, from high energy physics to quantum mechanics and cosmology. They are also at the heart of topological physics. Here, exploiting a strongly anisotropic material under strong coupling regime, we experimentally synthesize a Yang-Mills non-Abelian gauge field acting on an exciton-polariton quantum flow like a magnetic field. We observe experimentally the corresponding curved trajectories and spin precession. This motion follows chromodynamics equations which normally describe the quarks strong interactions and their color. Our work therefore opens exciting perspectives of simulating quark-gluon dynamics using highly flexible photonic simulators. It makes of sub-atomic physics a potential new playground to apply topological physics concepts.

Published
2019
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27. Enhancement of Parametric Effects in Polariton Waveguides Induced by Dipolar Interactions

Author

Suárez-Forero, DG, Riminucci, F, Ardizzone, V, Karpowicz, N, Maggiolini, E, Macorini, G, Lerario, G, Todisco, F, De Giorgi, M, Dominici, L, Ballarini, D, Gigli, G, Lanotte, AS, West, K, Baldwin, K, Pfeiffer, L, and Sanvitto, D

Subjects
Quantum Physics, Physical Sciences, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

Exciton-polaritons are hybrid light-matter excitations arising from the nonperturbative coupling of a photonic mode and an excitonic resonance. Behaving as interacting photons, they show optical third-order nonlinearities providing effects such as optical parametric oscillation or amplification. It has been suggested that polariton-polariton interactions can be greatly enhanced by inducing aligned electric dipoles in their excitonic part. However, direct evidence of a true particle-particle interaction, such as superfluidity or parametric scattering, is still missing. In this Letter, we demonstrate that dipolar interactions can be used to enhance parametric effects such as self-phase modulation in waveguide polaritons. By quantifying these optical nonlinearities, we provide a reliable experimental measurement of the direct dipolar enhancement of polariton-polariton interactions.

Published
2021

29. Measurements of the Absolute Branching Fractions of $B^\pm \to K^\pm X_{c\bar c}$

Author

Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kozyrev, E. A., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Lankfordm, A. J., Dey, B., Gary, J. W., Long, O., Eisner, A. M., Lockman, W. S., Vazquez, W. Panduro, Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Li, Y., Miyashita, T. S., Ongmongkolkul, P., Porter, F. C., Rohrken, M., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Smith, J. G., Wagner, S. R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Lacker, H. M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Diberder, F. Le, Lutz, A. M., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C. L., Denig, A. G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Jawahery, A., Roberts, D. A., Cowan, R., Robertson, S. H., Seddon, R. M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C. P., LoSecco, J. M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Zani, L., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bunger, C., Dittrich, S., Grunberg, O., Hess, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M. R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., MacFarlane, D. B., Muller, D. R., Neal, H., Ratcliff, B. N., Roodman, A., Sullivan, M. K., Va'vra, J., Wisniewski, W. J., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Ahmed, H., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F. U., King, G. J., Kowalewski, R., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Prepost, R., and Wu, S. L.

Subjects
High Energy Physics - Experiment
Abstract

A study of the two body decays $B^\pm\rightarrow X_{c\bar c}K^\pm$, where X$_{c\bar c}$ refers to one charmonium state, is reported by BaBar collaboration using a data sample of 424 fb$^{-1}$. The absolute determination of branching fractions for these decays are significantly improved compared to previous BaBaR measurements. Evidence is found for the decay $B^+\rightarrow X(3872)K^+$ at the $3\sigma$ level. The absolute branching fraction ${\cal B}(B^+\rightarrow X(3872)K^+) = (2.1\pm0.6({\rm stat})\pm0.3({\rm syst}))\times 10^{-4}$ is measured for the first time. It follows that ${\cal B}(X(3872)\rightarrow J/\psi\pi^+\pi^-)=(4.1\pm1.3)\%$, supporting the hypothesis of a molecular component for this resonance., Comment: 8 pages 6 figures

Published
2019
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30. Polaritonic neuromorphic computing outperforms linear classifiers

Author

Ballarini, D., Gianfrate, A., Panico, R., Opala, A., Ghosh, S., Dominici, L., Ardizzone, V., De Giorgi, M., Lerario, G., Gigli, G., Liew, T. C. H., Matuszewski, M., and Sanvitto, D.

Subjects
Computer Science - Emerging Technologies, Condensed Matter - Disordered Systems and Neural Networks, Condensed Matter - Quantum Gases
Abstract

Machine learning software applications are nowadays ubiquitous in many fields of science and society for their outstanding capability of solving computationally vast problems like the recognition of patterns and regularities in big datasets. One of the main goals of research is the realization of a physical neural network able to perform data processing in a much faster and energy-efficient way than the state-of-the-art technology. Here we show that lattices of exciton-polariton condensates accomplish neuromorphic computing using fast optical nonlinearities and with lower error rate than any previous hardware implementation. We demonstrate that our neural network significantly increases the recognition efficiency compared to the linear classification algorithms on one of the most widely used benchmarks, the MNIST problem, showing a concrete advantage from the integration of optical systems in reservoir computing architectures.

Published
2019
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31. Search for $B^- \to \Lambda \bar p \nu \bar\nu$ with the BABAR experiment

Author

The BABAR Collaboration, Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kozyrev, E. A., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Lankford, A. J., Dey, B., Gary, J. W., Long, O., Eisner, A. M., Lockman, W. S., Vazquez, W. Panduro, Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Li, Y., Miyashita, T. S., Ongmongkolkul, P., Porter, F. C., Röhrken, M., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Smith, J. G., Wagner, S. R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Lacker, H. M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Diberder, F. Le, Lutz, A. M., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C. L., Denig, A. G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Jawahery, A., Roberts, D. A., Cowan, R., Robertson, S. H., Seddon, R. M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C. P., LoSecco, J. M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Zani, L., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M. R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., MacFarlane, D. B., Muller, D. R., Neal, H., Ratcliff, B. N., Roodman, A., Sullivan, M. K., Va'vra, J., Wisniewski, W. J., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Ahmed, H., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F. U., King, G. J., Kowalewski, R., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Prepost, R., and Wu, S. L.

Subjects
High Energy Physics - Experiment
Abstract

We search for the rare flavor-changing neutral current process $B^- \to \Lambda {\overline p} \nu{\overline{\nu}}$ using data from the BABAR experiment. A total of 424 fb$^{-1}$ of $e^+e^-$ collision data collected at the center-of-mass energy of the $\Upsilon$(4S) resonance is used in this study, corresponding to a sample of ${(471 \pm 3) \times 10^{6}}$ $B\overline{B}$ pairs. Signal $B^- \to \Lambda {\overline p} \nu{\overline{\nu}}$ candidates are identified by first fully reconstructing a $B^+$ decay in one of many possible exclusive decays to hadronic final states, then examining detector activity that is not associated with this reconstructed $B^+$ decay for evidence of a signal $B^- \to \Lambda {\overline p} \nu{\overline{\nu}}$ decay. The data yield is found to be consistent with the expected background contribution under a null signal hypothesis, resulting in an upper limit of ${{\cal B} (B^- \to \Lambda {\overline p} \nu{\overline{\nu}}) < 3.0\times 10^{-5}}$ at the $90\%$ confidence level., Comment: 10 pages, 7 figures

Published
2019
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32. Quantum hydrodynamics of a single particle

Author

Suárez-Forero, D. G., Ardizzone, V., da Silva, S. F. Covre, Reindl, M., Fieramosca, A., Polimeno, L., de Giorgi, M., Dominici, L., Pfeiffer, L. N., Gigli, G., Ballarini, D., Laussy, F., Rastelli, A., and Sanvitto, D.

Subjects
Condensed Matter - Quantum Gases, Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Applied Physics, Physics - Optics, Quantum Physics
Abstract

Semiconductor devices are strong competitors in the race for the development of quantum com-putational systems. In this work, we interface two semiconductor building blocks of different di-mensionality and with complementary properties: (1) a quantum dot hosting a single exciton andacting as a nearly ideal single-photon emitter and (2) a quantum well in a 2D microcavity sustain-ing polaritons, which are known for their strong interactions and unique hydrodynamics propertiesincluding ultrafast real-time monitoring of their propagation and phase-mapping. In the presentexperiment we can thus observe how the injected single particles propagate and evolve inside themicrocavity, giving rise to hydrodynamics features typical of macroscopic systems despite their in-trinsic genuine quantum nature. In the presence of a structural defect, we observe the celebratedquantum interference of a single particle that produces fringes reminiscent of a wave propagation.While this behaviour could be theoretically expected, our imaging of such an interference pattern,together with a measurement of antibunching, constitutes the first demonstration of spatial mappingof the self-interference of a single quantum particle hitting an obstacle., Comment: 9 pages, 4 figures, supplementary 4 pages, 6 figures

Published
2019
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33. Search for rare or forbidden decays of the $D^{0}$ meson

Author

Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu. G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., Golubev, V. B., Kozyrev, E. A., Kravchenko, E. A., Onuchin, A. P., Serednyakov, S. I., Skovpen, Yu. I., Solodov, E. P., Todyshev, K. Yu., Lankford, A. J., Dey, B., Gary, J. W., Long, O., Eisner, A. M., Lockman, W. S., Vazquez, W. Panduro, Chao, D. S., Cheng, C. H., Echenard, B., Flood, K. T., Hitlin, D. G., Kim, J., Li, Y., Miyashita, T. S., Ongmongkolkul, P., Porter, F. C., Röhrken, M., Huard, Z., Meadows, B. T., Pushpawela, B. G., Sokoloff, M. D., Sun, L., Smith, J. G., Wagner, S. R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I. M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Lacker, H. M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Gritsan, A. V., Arnaud, N., Davier, M., Diberder, F. Le, Lutz, A. M., Wormser, G., Lange, D. J., Wright, D. M., Coleman, J. P., Gabathuler, E., Hutchcroft, D. E., Payne, D. J., Touramanis, C., Bevan, A. J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw., Davis, C. L., Denig, A. G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K. R., Barlow, R. J., Lafferty, G. D., Cenci, R., Jawahery, A., Roberts, D. A., Cowan, R., Robertson, S. H., Seddon, R. M., Neri, N., Palombo, F., Cremaldi, L., Godang, R., Summers, D. J., Taras, P., De Nardo, G., Sciacca, C., Raven, G., Jessop, C. P., LoSecco, J. M., Honscheid, K., Kass, R., Gaz, A., Margoni, M., Posocco, M., Simi, G., Simonetto, F., Stroili, R., Akar, S., Ben-Haim, E., Bomben, M., Bonneaud, G. R., Calderini, G., Chauveau, J., Marchiori, G., Ocariz, J., Biasini, M., Manoni, E., Rossi, A., Batignani, G., Bettarini, S., Carpinelli, M., Casarosa, G., Chrzaszcz, M., Forti, F., Giorgi, M. A., Lusiani, A., Oberhof, B., Paoloni, E., Rama, M., Rizzo, G., Walsh, J. J., Zani, L., Smith, A. J. S., Anulli, F., Faccini, R., Ferrarotto, F., Ferroni, F., Pilloni, A., Piredda, G., Bünger, C., Dittrich, S., Grünberg, O., Heß, M., Leddig, T., Voß, C., Waldi, R., Adye, T., Wilson, F. F., Emery, S., Vasseur, G., Aston, D., Cartaro, C., Convery, M. R., Dorfan, J., Dunwoodie, W., Ebert, M., Field, R. C., Fulsom, B. G., Graham, M. T., Hast, C., Innes, W. R., Kim, P., Leith, D. W. G. S., Luitz, S., MacFarlane, D. B., Muller, D. R., Neal, H., Ratcliff, B. N., Roodman, A., Sullivan, M. K., Va'vra, J., Wisniewski, W. J., Purohit, M. V., Wilson, J. R., Randle-Conde, A., Sekula, S. J., Ahmed, H., Bellis, M., Burchat, P. R., Puccio, E. M. T., Alam, M. S., Ernst, J. A., Gorodeisky, R., Guttman, N., Peimer, D. R., Soffer, A., Spanier, S. M., Ritchie, J. L., Schwitters, R. F., Izen, J. M., Lou, X. C., Bianchi, F., De Mori, F., Filippi, A., Gamba, D., Lanceri, L., Vitale, L., Martinez-Vidal, F., Oyanguren, A., Albert, J., Beaulieu, A., Bernlochner, F. U., King, G. J., Kowalewski, R., Lueck, T., Nugent, I. M., Roney, J. M., Sobie, R. J., Tasneem, N., Gershon, T. J., Harrison, P. F., Latham, T. E., Prepost, R., and Wu, S. L.

Subjects
High Energy Physics - Experiment
Abstract

We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type $D^0\rightarrow h^{\prime -} h^{-}\ell^{\prime +} \ell^{+}$ and $D^0\rightarrow h^{\prime -} h^{+}\ell^{\prime\pm} \ell^{\mp}$, where $h$ and $h^{\prime}$ represent a $K$ or $\pi$ meson and $\ell$ and $\ell^{\prime}$ an electron or muon. The analysis is based on $468$ fb$^{-1}$ of $e^+e^-$ annihilation data collected at or close to the $Y(4S)$ resonance with the BaBar detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the twelve modes and we establish 90% confidence level upper limits on the branching fractions in the range $(1.0 - 30.6)\times 10^{-7}$. The limits are between one and three orders of magnitude times more stringent than previous measurements., Comment: 8 pages, 2 figures

Published
2019
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34. Novel method for the direct measurement of the tau lepton dipole moments

Author

Fu, J., Giorgi, M. A., Henry, L., Marangotto, D., Vidal, F. Martinez, Merli, A., Neri, N., and Vidal, J. Ruiz

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

A novel method for the direct measurement of the elusive magnetic and electric dipole moments of the tau lepton is presented. The experimental approach relies on the production of tau+ leptons from Ds+ -> tau+ nu_tau decays, originated in fixed-target collisions at the LHC. A sample of polarized tau+ leptons is kinematically selected and subsequently channeled in a bent crystal. The magnetic and electric dipole moments of the tau+ lepton are measured by determining the rotation of the spin-polarization vector induced by the intense electromagnetic field between crystal atomic planes. The experimental technique is discussed along with the expected sensitivities., Comment: 4 pages, 4 figures, 2 pages supplemental material. Accepted by Phys.Rev.Lett

Published
2019
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35. Direct measurement of the quantum geometric tensor in a two-dimensional continuous medium

Author

Gianfrate, A., Bleu, O., Dominici, L., Ardizzone, V., De Giorgi, M., Ballarini, D., West, K., Pfeiffer, L. N., Solnyshkov, D. D., Sanvitto, D., and Malpuech, G.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Optics
Abstract

Topological Physics relies on the specific structure of the eigenstates of Hamiltonians. Their geometry is encoded in the quantum geometric tensor containing both the celebrated Berry curvature, crucial for topological matter, and the quantum metric. The latter is at the heart of a growing number of physical phenomena such as superfluidity in flat bands, orbital magnetic susceptibility, exciton Lamb shift, and non-adiabatic corrections to the anomalous Hall effect. Here, we report the first direct measurement of both Berry curvature and quantum metric in a two-dimensional continuous medium. The studied platform is a planar microcavity of extremely high finesse, in the strong coupling regime. It hosts mixed exciton-photon modes (exciton-polaritons) subject to photonic spin-orbit-coupling which makes emerge Dirac cones and exciton Zeeman splitting breaking time-reversal symmetry. The monopolar and half-skyrmion pseudospin textures are measured by polarisation-resolved photoluminescence. The associated quantum geometry of the bands is straightforwardly extracted from these measurements. Our results unveil the intrinsic chirality of photonic modes which is at the basis of topological photonics. This technique can be extended to measure Bloch band geometries in artificial lattices. The use of exciton-polaritons (interacting photons) opens wide perspectives for future studies of quantum fluid physics in topological systems.

Published
2019
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36. Addendum to: A measurement of the K+→ π+μ+μ− decay

Author

Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Di Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.

Published
2023
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37. Electrically controlled waveguide polariton laser

Author

Suárez-Forero, DG, Riminucci, F, Ardizzone, V, De Giorgi, M, Dominici, L, Todisco, F, Lerario, G, Pfeiffer, LN, Gigli, G, Ballarini, D, and Sanvitto, D

Subjects
Quantum Physics, Physical Sciences, Affordable and Clean Energy, Optical Physics, Electrical and Electronic Engineering, Communications Technologies, Atomic, molecular and optical physics
Abstract

Exciton-polaritons are mixed light-matter particles offering a versatile solid state platformto study many-body physical effects. In this work, we demonstrate an electrically controlled polariton laser, in a compact, easy-to-fabricate and integrable configuration, based on a semiconductor waveguide. Interestingly, we show that polariton lasing can be achieved in a system without a global minimum in the polariton energy-momentum dispersion. The cavity modes for the laser emission are obtained by adding couples of specifically designed diffraction gratings on top of the planar waveguide, forming an in-plane Fabry-Perot cavity. It is due to the waveguide geometry that we can apply a transverse electric field to finely tune the laser energy and quality factor of the cavity modes. Remarkably, we exploit the system sensitivity to the applied electric field to achieve an electrically controlled population of coherent polaritons. The precise control that can be reached with the manipulation of the grating properties and of the electric field provides strong advantages to this device in terms of miniaturization and integrability, two main features for the future development of coherent sources for polaritonic technologies.

Published
2020

38. Performance of the NA62 trigger system

Author

Cortina Gil, E., Kleimenova, A., Minucci, E., Padolski, S., Petrov, P., Shaikhiev, A., Volpe, R., Numao, T., Petrov, Y., Velghe, B., Wong, V. W. S., Bryman, D., Fu, J., Husek, T., Jerhot, J., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Peruzzo, L., Vormstein, M., Wanke, R., Dalpiaz, P., Fiorini, M., Neri, I., Norton, A., Petrucci, F., Wahl, H., Cotta Ramusino, A., Gianoli, A., Iacopini, E., Latino, G., Lenti, M., Parenti, A., Bizzeti, A., Bucci, F., Antonelli, A., Georgiev, G., Kozhuharov, V., Lanfranchi, G., Martellotti, S., Moulson, M., Spadaro, T., Tinti, G., Ambrosino, F., Capussela, T., Corvino, M., Di Filippo, D., Fiorenza, R., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Brizioli, F., Imbergamo, E., Lollini, R., Piandani, R., Santoni, C., Barbanera, M., Cenci, P., Checcucci, B., Lubrano, P., Lupi, M., Pepe, M., Piccini, M., Costantini, F., Di Lella, L., Doble, N., Giorgi, M., Giudici, S., Lamanna, G., Lari, E., Pedreschi, E., Sozzi, M., Cerri, C., Fantechi, R., Pontisso, L., Spinella, F., Mannelli, I., D’Agostini, G., Raggi, M., Biagioni, A., Cretaro, P., Frezza, O., Leonardi, E., Lonardo, A., Turisini, M., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Fucci, A., Salamon, A., Sargeni, F., Arcidiacono, R., Bloch-Devaux, B., Boretto, M., Menichetti, E., Migliore, E., Soldi, D., Biino, C., Filippi, A., Marchetto, F., Engelfried, J., Estrada-Tristan, N., Bragadireanu, A. M., Ghinescu, S. A., Hutanu, O. E., Baeva, A., Baigarashev, D., Emelyanov, D., Enik, T., Falaleev, V., Kekelidze, V., Korotkova, A., Litov, L., Madigozhin, D., Misheva, M., Molokanova, N., Movchan, S., Polenkevich, I., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Fedotov, S., Gushchin, E., Khotyantsev, A., Kudenko, Y., Kurochka, V., Medvedeva, M., Mefodev, A., Kholodenko, S., Kurshetsov, V., Obraztsov, V., Ostankov, A., Semenov, V., Sugonyaev, V., Yushchenko, O., Bician, L., Blazek, T., Cerny, V., Kucerova, Z., Bernhard, J., Ceccucci, A., Danielsson, H., De Simone, N., Duval, F., Döbrich, B., Federici, L., Gamberini, E., Gatignon, L., Guida, R., Hahn, F., Holzer, E. B., Jenninger, B., Koval, M., Laycock, P., Lehmann Miotto, G., Lichard, P., Mapelli, A., Marchevski, R., Massri, K., Noy, M., Palladino, V., Perrin-Terrin, M., Pinzino, J., Ryjov, V., Schuchmann, S., Venditti, S., Bache, T., Brunetti, M. B., Duk, V., Fascianelli, V., Fry, J. R., Gonnella, F., Goudzovski, E., Henshaw, J., Iacobuzio, L., Lazzeroni, C., Lurkin, N., Newson, F., Parkinson, C., Romano, A., Sergi, A., Sturgess, A., Swallow, J., Tomczak, A., Heath, H., Page, R., Trilov, S., Angelucci, B., Britton, D., Graham, C., Protopopescu, D., Carmignani, J., Dainton, J. B., Jones, R. W. L., Ruggiero, G., Fulton, L., Hutchcroft, D., Maurice, E., Wrona, B., Conovaloff, A., Cooper, P., Coward, D., and Rubin, P.

Published
2023
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39. Two-Dimensional hybrid perovskites sustaining strong polariton interactions at room temperature

Author

Fieramosca, A., Polimeno, L., Ardizzone, V., De Marco, L., Pugliese, M., Maiorano, V., De Giorgi, M., Dominici, L., Gigli, G., Gerace, D., Ballarini, D., and Sanvitto, D.

Subjects
Physics - Optics, Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science
Abstract

Polaritonic devices exploit the coherent coupling between excitonic and photonic degrees of freedom to perform highly nonlinear operations with low input powers. Most of the current results exploit excitons in epitaxially grown quantum wells and require low temperature operation, while viable alternatives have yet to be found at room temperature. Here we show that large single-crystal flakes of two-dimensional layered perovskite are able to sustain strong polariton nonlinearities at room temperature with no need to be embedded in an optical cavity. In particular, exciton-exciton interaction energies are measured to be remarkably similar to the ones known for inorganic quantum wells at cryogenic temperatures, and more than one order of magnitude larger than alternative room temperature polariton devices reported so far. Thanks to their easy fabrication, large dipolar oscillator strengths and strong nonlinearities, these materials hold great promises to realize actual polariton devices at room temperature., Comment: 16 pages, 4 figures, plus Supporting file

Published
2018
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40. Tunable out-of-plane excitons in 2D single crystal perovskites

Author

Fieramosca, A., De Marco, L., Passoni, M., Polimeno, L., Rizzo, A., Rosa, B. L. T., Cruciani, G., Dominici, L., De Giorgi, M., Gigli, G., Andreani, L. C., Gerace, D., Ballarini, D., and Sanvitto, D.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science, Physics - Optics
Abstract

Hybrid organic-inorganic perovskites have emerged as very promising materials for photonic applications, thanks to the great synthetic versatility that allows to tune their optical properties. In the two-dimensional (2D) crystalline form, these materials behave as multiple quantum-well heterostructures with stable excitonic resonances up to room temperature. In this work strong light-matter coupling in 2D perovskite single-crystal flakes is observed, and the polarization-dependent exciton-polariton response is used to disclose new excitonic features. For the first time, an out-of-plane component of the excitons is observed, unexpected for such 2D systems and completely absent in other layered materials, such as transition-metal dichalcogenides. By comparing different hybrid perovskites with the same inorganic layer but different organic interlayers, it is shown how the nature of the organic ligands controllably affects the out-of-plane exciton-photon coupling. Such vertical dipole coupling is particularly sought in those systems, e.g. plasmonic nanocavities, in which the direction of the field is usually orthogonal to the material sheet. Organic interlayers are shown to affect also the strong birefringence associated to the layered structure, which is exploited in this work to completely rotate the linear polarization degree in only few microns of propagation, akin to what happens in metamaterials., Comment: 11 pages, 14 figures (included supporting info)

Published
2018
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41. Search for $K^{+}\rightarrow\pi^{+}\nu\overline{\nu}$ at NA62

Author

NA62 Collaboration, Rinella, G. Aglieri, Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., Anzivino, G., Arcidiacono, R., Azhinenko, I., Balev, S., Barbanera, M., Bendotti, J., Biagioni, A., Bician, L., Biino, C., Bizzeti, A., Blazek, T., Blik, A., Bloch-Devaux, B., Bolotov, V., Bonaiuto, V., Boretto, M., Bragadireanu, M., Britton, D., Britvich, G., Brunetti, M. B., Bryman, D., Bucci, F., Butin, F., Calvo, J., Capitolo, E., Capoccia, C., Capussela, T., Cassese, A., Catinaccio, A., Cecchetti, A., Ceccucci, A., Cenci, P., Cerny, V., Cerri, C., Checcucci, B., Chikilev, O., Chiozzi, S., Ciaranfi, R., Collazuol, G., Conovaloff, A., Cooke, P., Cooper, P., Corradi, G., Gil, E. Cortina, Costantini, F., Cotorobai, F., Ramusino, A. Cotta, Coward, D., D'Agostini, G., Dainton, J., Dalpiaz, P., Danielsson, H., Degrange, J., De Simone, N., Di Filippo, D., Di Lella, L., Di Lorenzo, S., Dixon, N., Doble, N., Dobrich, B., Duk, V., Elsha, V., Engelfried, J., Enik, T., Estrada, N., Falaleev, V., Fantechi, R., Fascianelli, V., Federici, L., Fedotov, S., Filippi, A., Fiorini, M., Fry, J., Fu, J., Fucci, A., Fulton, L., Gallorini, S., Galeotti, S., Gamberini, E., Gatignon, L., Georgiev, G., Ghinescu, S., Gianoli, A., Giorgi, M., Giudici, S., Glonti, L., Martins, A. Goncalves, Gonnella, F., Goudzovski, E., Guida, R., Gushchin, E., Hahn, F., Hallgren, B., Heath, H., Herman, F., Husek, T., Hutanu, O., Hutchcroft, D., Iacobuzio, L., Iacopini, E., Imbergamo, E., Jamet, O., Jarron, P., Jones, E., Kampf, T. Jones K., Kaplon, J., Kekelidze, V., Kholodenko, S., Khoriauli, G., Khotyantsev, A., Khudyakov, A., Kiryushin, Yu., Kleimenova, A., Kleinknecht, K., Kluge, A., Koval, M., Kozhuharov, V., Krivda, M., Kucerova, Z., Kudenko, Yu., Kunze, J., Lamanna, G., Latino, G., Lazzeroni, C., Lehmann-Miotto, G., Lenci, R., Lenti, M., Leonardi, E., Lichard, P., Lietava, R., Likhacheva, V., Litov, L., Lollini, R., Lomidze, D., Lonardo, A., Lupi, M., Lurkin, N., McCormick, K., Madigozhin, D., Maire, G., Mandeiro, C., Mannelli, I., Mannocchi, G., Mapelli, A., Marchetto, F., Marchevski, R., Martellotti, S., Massarotti, P., Massri, K., Matak, P., Maurice, E., Medvedeva, M., Mefodev, A., Menichetti, E., Migliore, E., Minucci, E., Mirra, M., Misheva, M., Molokanova, N., Morant, J., Morel, M., Moulson, M., Movchan, S., Munday, D., Napolitano, M., Neri, I., Newson, F., Noël, J., Norton, A., Noy, M., Nuessle, G., Numao, T., Obraztsov, V., Ostankov, A., Padolski, S., Page, R., Palladino, V., Paoluzzi, G., Parkinson, C., Pedreschi, E., Pepe, M., Gomez, F. Perez, Perrin-Terrin, M., Peruzzo, L., Petrov, P., Petrucci, F., Piandani, R., Piccini, M., Pietreanu, D., Pinzino, J., Polenkevich, I., Pontisso, L., Potrebenikov, Yu., Protopopescu, D., Raffaelli, F., Raggi, M., Riedler, P., Romano, A., Rubin, P., Ruggiero, G., Russo, V., Ryjov, V., Salamon, A., Salina, G., Samsonov, V., Santoni, C., Saracino, G., Sargeni, F., Semenov, V., Sergi, A., Serra, M., Shaikhiev, A., Shkarovskiy, S., Skillicorn, I., Soldi, D., Sotnikov, A., Sugonyaev, V., Sozzi, M., Spadaro, T., Spinella, F., Staley, R., Sturgess, A., Sutcliffe, P., Szilasi, N., Tagnani, D., Trilov, S., Valdata-Nappi, M., Valente, P., Vasile, M., Vassilieva, T., Velghe, B., Veltri, M., Venditti, S., Vicini, P., Volpe, R., Vormstein, M., Wahl, H., Wanke, R., Wertelaers, P., Winhart, A., Winston, R., Wrona, B., Yushchenko, O., Zamkovsky, M., and Zinchenko, A.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

$K^{+}\rightarrow\pi^{+}\nu\overline{\nu}$ is one of the theoretically cleanest meson decay where to look for indirect effects of new physics complementary to LHC searches. The NA62 experiment at CERN SPS is designed to measure the branching ratio of this decay with 10\% precision. NA62 took data in pilot runs in 2014 and 2015 reaching the final designed beam intensity. The quality of 2015 data acquired, in view of the final measurement, will be presented., Comment: proceeding of the conference New Trends in High-Energy Physics 2016

Published
2018

42. Measurement of $\cos{2\beta}$ in $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} \pi^{+} \pi^{-}$ decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data

Author

BaBar, The, Collaborations, Belle, Adachi, I., Adye, T., Ahmed, H., Ahn, J. K., Aihara, H., Akar, S., Alam, M. S., Albert, J., Anulli, F., Arnaud, N., Asner, D. M., Aston, D., Atmacan, H., Aushev, T., Ayad, R., Badhrees, I., Bakich, A. M., Banerjee, Sw., Bansal, V., Barlow, R. J., Batignani, G., Beaulieu, A., Behera, P., Bellis, M., Ben-Haim, E., Bernard, D., Bernlochner, F. U., Bettarini, S., Bettoni, D., Bevan, A. J., Bhardwaj, V., Bhuyan, B., Bianchi, F., Biasini, M., Biswal, J., Blinov, V. E., Bomben, M., Bondar, A., Bonneaud, G. R., Bozek, A., Bozzi, C., Bračko, M., Browder, T. E., Brown, D. N., Bünger, C., Burchat, P. R., Buzykaev, A. R., Calabrese, R., Calcaterra, A., Calderini, G., Di Carlo, S., Carpinelli, M., Cartaro, C., Casarosa, G., Cenci, R., Chao, D. S., Chauveau, J., Cheaib, R., Chen, A., Chen, C., Cheng, C. H., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Chrzaszcz, M., Cibinetto, G., Cinabro, D., Cochran, J., Coleman, J. P., Convery, M. R., Cowan, G., Cowan, R., Cremaldi, L., Cunliffe, S., Dash, N., Davier, M., Davis, C. L., De Mori, F., De Nardo, G., Denig, A. G., de Sangro, R., Dey, B., Di Lodovico, F., Dittrich, S., Doležal, Z., Dorfan, J., Drásal, Z., Druzhinin, V. P., Dunwoodie, W., Ebert, M., Echenard, B., Eidelman, S., Eigen, G., Eisner, A. M., Emery, S., Epifanov, D., Ernst, J. A., Faccini, R., Fast, J. E., Feindt, M., Ferrarotto, F., Ferroni, F., Field, R. C., Filippi, A., Finocchiaro, G., Fioravanti, E., Flood, K. T., Forti, F., Fritsch, M., Fulsom, B. G., Gabathuler, E., Gamba, D., Garg, R., Garmash, A., Gary, J. W., Garzia, I., Gaur, V., Gaz, A., Gelb, M., Gershon, T. J., Gioi, L. Li, Giorgi, M. A., Giri, A., Godang, R., Goldenzweig, P., Golob, B., Golubev, V. B., Gorodeisky, R., Gradl, W., Graham, M. T., Grauges, E., Griessinger, K., Gritsan, A. V., Grünberg, O., Guido, E., Guttman, N., Hafner, A., Hara, T., Harrison, P. F., Hast, C., Hayasaka, K., Hearty, C., Heck, M., Hedges, M. T., Heß, M., Hirose, S., Hitlin, D. G., Honscheid, K., Hou, W. -S., Huard, Z., Van Hulse, C., Hutchcroft, D. E., Inami, K., Inguglia, G., Innes, W. R., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Izen, J. M., Jacobs, W. W., Jawahery, A., Jessop, C. P., Jia, S., Jin, Y., Joo, K. K., Julius, T., Kaliyar, A. B., Kang, K. H., Karyan, G., Kass, R., Kichimi, H., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kim, J., Kim, P., King, G. J., Kinoshita, K., Koch, H., Kodyš, P., Kolomensky, Yu. G., Korpar, S., Kotchetkov, D., Kowalewski, R., Kravchenko, E. A., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y. -J., Lacker, H. M., Lafferty, G. D., Lanceri, L., Lange, J. S., Lange, D. J., Lankford, A. J., Latham, T. E., Leddig, T., Diberder, F. Le, Lee, I. S., Lee, S. C., Lees, J. P., Leith, D. W. G. S., Li, L. K., Li, Y. B., Li, Y., Libby, J., Liventsev, D., Lockman, W. S., Long, O., LoSecco, J. M., Lou, X. C., Lubej, M., Lueck, T., Luitz, S., Luo, T., Luppi, E., Lusiani, A., Lutz, A. M., MacFarlane, D. B., MacNaughton, J., Mallik, U., Manoni, E., Marchiori, G., Margoni, M., Martellotti, S., Martinez-Vidal, F., Masuda, M., Matsuda, T., Mattison, T. S., Matvienko, D., McKenna, J. A., Meadows, B. T., Merola, M., Miyabayashi, K., Miyashita, T. S., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Muller, D. R., Müller, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Nayak, M., Neal, H., Neri, N., Nisar, N. K., Nishida, S., Nugent, I. M., Oberhof, B., Ocariz, J., Ogawa, S., Ongmongkolkul, P., Ono, H., Onuchin, A. P., Oyanguren, A., Pakhlov, P., Pakhlova, G., Pal, B., Palano, A., Palombo, F., Vazquez, W. Panduro, Paoloni, E., Pardi, S., Park, H., Passaggio, S., Patrignani, C., Patteri, P., Paul, S., Pavelkin, I., Payne, D. J., Pedlar, T. K., Peimer, D. R., Peruzzi, I. M., Piccolo, M., Piilonen, L. E., Pilloni, A., Piredda, G., Poireau, V., Porter, F. C., Posocco, M., Prell, S., Prepost, R., Puccio, E. M. T., Purohit, M. V., Pushpawela, B. G., Rama, M., Randle-Conde, A., Ratcliff, B. N., Raven, G., Resmi, P. K., Ritchie, J. L., Ritter, M., Rizzo, G., Roberts, D. A., Robertson, S. H., Röhrken, M., Roney, J. M., Roodman, A., Rossi, A., Rotondo, M., Rozanska, M., Russo, G., Sacco, R., Said, S. Al, Sakai, Y., Sandilya, S., Santelj, L., Santoro, V., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schroeder, T., Schubert, K. R., Schwanda, C., Schwartz, A. J., Schwitters, R. F., Sciacca, C., Seddon, R. M., Seino, Y., Sekula, S. J., Senyo, K., Seon, O., Serednyakov, S. I., Sevior, M. E., Shebalin, V., Shibata, T. -A., Shimizu, N., Shiu, J. -G., Simi, G., Simon, F., Simonetto, F., Skovpen, Yu. I., Smith, J. G., Smith, A. J. S., So, R. Y., Sobie, R. J., Soffer, A., Sokoloff, M. D., Solodov, E. P., Solovieva, E., Spanier, S. M., Starič, M., Stroili, R., Sullivan, M. K., Sumisawa, K., Sumiyoshi, T., Summers, D. J., Sun, L., Takizawa, M., Tamponi, U., Tanida, K., Taras, P., Tasneem, N., Tenchini, F., Tisserand, V., Todyshevx, K. Yu., Touramanis, C., Uchida, M., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Varner, G., Vasseur, G., Va'vra, J., Červenkov, D., Verderi, M., Vitale, L., Vorobyev, V., Voß, C., Wagner, S. R., Waheed, E., Waldi, R., Walsh, J. J., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Wilson, F. F., Wilson, J. R., Wisniewski, W. J., Won, E., Wormser, G., Wright, D. M., Wu, S. L., Yuan, C. Z., Yusa, Y., Zakharov, S., Zallo, A., Zani, L., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.

Subjects
High Energy Physics - Experiment
Abstract

We report measurements of $\sin{2\beta}$ and $\cos{2\beta}$ from a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} \pi^{+} \pi^{-}$ decays, where the light unflavored and neutral hadron $h^{0}$ is a $\pi^{0}$, $\eta$, or $\omega$ meson. The analysis is performed with a combination of the final data sets of the \babar\ and Belle experiments containing $471 \times 10^{6}$ and $772 \times 10^{6}$ $B\bar{B}$ pairs collected at the $\Upsilon\left(4S\right)$ resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. We measure $\sin{2\beta} = 0.80 \pm 0.14 \,(\rm{stat.}) \pm 0.06 \,(\rm{syst.}) \pm 0.03 \,(\rm{model})$ and $\cos{2\beta} = 0.91 \pm 0.22 \,(\rm{stat.}) \pm 0.09 \,(\rm{syst.}) \pm 0.07 \,(\rm{model})$. The result for the direct measurement of the angle is $\beta = \left( 22.5 \pm 4.4 \,(\rm{stat.}) \pm 1.2 \,(\rm{syst.}) \pm 0.6 \,(\rm{model}) \right)^{\circ}$. The last quoted uncertainties are due to the composition of the $D^{0} \to K_{S}^{0} \pi^{+} \pi^{-}$ decay amplitude model, which is newly established by a Dalitz plot amplitude analysis of a high-statistics $e^{+}e^{-} \to c\bar{c}$ data sample as part of this analysis. We find the first evidence for $\cos2\beta>0$ at the level of $3.7$ standard deviations. The measurement excludes the trigonometric multifold solution $\pi/2 - \beta = (68.1 \pm 0.7)^{\circ}$ at the level of $7.3$ standard deviations and therefore resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle. The hypothesis of $\beta = 0^{\circ}$ is ruled out at the level of $5.1$ standard deviations, and thus CP violation is observed in $B^{0} \to D^{(*)} h^{0}$ decays., Comment: To be submitted to Physical Review D

Published
2018
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43. First evidence for $\cos 2\beta>0$ and resolution of the CKM Unitarity Triangle ambiguity by a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} \pi^{+} \pi^{-}$ decays

Author

BaBar, The, Collaborations, Belle, Adachi, I., Adye, T., Ahmed, H., Ahn, J. K., Aihara, H., Akar, S., Alam, M. S., Albert, J., Anulli, F., Arnaud, N., Asner, D. M., Aston, D., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Banerjee, Sw., Bansal, V., Barlow, R. J., Batignani, G., Beaulieu, A., Behera, P., Bellis, M., Ben-Haim, E., Bernard, D., Bernlochner, F. U., Bettarini, S., Bettoni, D., Bevan, A. J., Bhardwaj, V., Bhuyan, B., Bianchi, F., Biasini, M., Biswal, J., Blinov, V. E., Bomben, M., Bondar, A., Bonneaud, G. R., Bozek, A., Bozzi, C., Bračko, M., Browder, T. E., Brown, D. N., Bünger, C., Burchat, P. R., Buzykaev, A. R., Calabrese, R., Calcaterra, A., Calderini, G., Di Carlo, S., Carpinelli, M., Cartaro, C., Casarosa, G., Cenci, R., Chao, D. S., Chauveau, J., Cheaib, R., Chen, A., Chen, C., Cheng, C. H., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Chrzaszcz, M., Cibinetto, G., Cinabro, D., Cochran, J., Coleman, J. P., Convery, M. R., Cowan, G., Cowan, R., Cremaldi, L., Cunliffe, S., Dash, N., Davier, M., Davis, C. L., De Mori, F., De Nardo, G., Denig, A. G., de Sangro, R., Dey, B., Di Lodovico, F., Dittrich, S., Doležal, Z., Dorfan, J., Drásal, Z., Druzhinin, V. P., Dunwoodie, W., Ebert, M., Echenard, B., Eidelman, S., Eigen, G., Eisner, A. M., Emery, S., Epifanov, D., Ernst, J. A., Faccini, R., Fast, J. E., Feindt, M., Ferber, T., Ferrarotto, F., Ferroni, F., Field, R. C., Filippi, A., Finocchiaro, G., Fioravanti, E., Flood, K. T., Forti, F., Fritsch, M., Fulsom, B. G., Gabathuler, E., Gamba, D., Garg, R., Garmash, A., Gary, J. W., Garzia, I., Gaur, V., Gaz, A., Gelb, M., Gershon, T. J., Gioi, L. Li, Giorgi, M. A., Giri, A., Godang, R., Goldenzweig, P., Golob, B., Golubev, V. B., Gorodeisky, R., Gradl, W., Graham, M. T., Grauges, E., Griessinger, K., Gritsan, A. V., Grünberg, O., Guan, Y., Guido, E., Guttman, N., Haba, J., Hafner, A., Hara, T., Harrison, P. F., Hast, C., Hayasaka, K., Hayashii, H., Hearty, C., Heck, M., Hedges, M. T., Heß, M., Hirose, S., Hitlin, D. G., Honscheid, K., Hou, W. -S., Hsu, C. -L., Huard, Z., Van Hulse, C., Hutchcroft, D. E., Inami, K., Inguglia, G., Innes, W. R., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Izen, J. M., Jacobs, W. W., Jawahery, A., Jessop, C. P., Jia, S., Jin, Y., Joo, K. K., Julius, T., Kaliyar, A. B., Kang, K. H., Karyan, G., Kass, R., Kichimi, H., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, S. H., Kim, J., Kim, P., King, G. J., Kinoshita, K., Koch, H., Kodyš, P., Kolomensky, Yu. G., Korpar, S., Kotchetkov, D., Kowalewski, R., Kravchenko, E. A., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumita, T., Kuzmin, A., Kwon, Y. -J., Lacker, H. M., Lafferty, G. D., Lanceri, L., Lange, J. S., Lange, D. J., Lankford, A. J., Latham, T. E., Leddig, T., Diberder, F. Le, Lee, I. S., Lee, S. C., Lees, J. P., Leith, D. W. G. S., Li, L. K., Li, Y. B., Li, Y., Libby, J., Liventsev, D., Lockman, W. S., Long, O., LoSecco, J. M., Lou, X. C., Lubej, M., Lueck, T., Luitz, S., Luo, T., Luppi, E., Lusiani, A., Lutz, A. M., MacFarlane, D. B., MacNaughton, J., Mallik, U., Manoni, E., Marchiori, G., Margoni, M., Martellotti, S., Martinez-Vidal, F., Masuda, M., Matsuda, T., Mattison, T. S., Matvienko, D., McKenna, J. A., Meadows, B. T., Merola, M., Miyabayashi, K., Miyashita, T. S., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Muller, D. R., Müller, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nath, K. J., Nayak, M., Neal, H., Neri, N., Nisar, N. K., Nishida, S., Nugent, I. M., Oberhof, B., Ocariz, J., Ogawa, S., Ongmongkolkul, P., Ono, H., Onuchin, A. P., Onuki, Y., Oyanguren, A., Pakhlov, P., Pakhlova, G., Pal, B., Palano, A., Palombo, F., Vazquez, W. Panduro, Paoloni, E., Pardi, S., Park, H., Passaggio, S., Patrignani, C., Patteri, P., Paul, S., Pavelkin, I., Payne, D. J., Pedlar, T. K., Peimer, D. R., Peruzzi, I. M., Pestotnik, R., Piccolo, M., Piilonen, L. E., Pilloni, A., Piredda, G., Poireau, V., Popov, V., Porter, F. C., Posocco, M., Prell, S., Prepost, R., Puccio, E. M. T., Purohit, M. V., Pushpawela, B. G., Rama, M., Randle-Conde, A., Ratcliff, B. N., Raven, G., Resmi, P. K., Ritchie, J. L., Ritter, M., Rizzo, G., Roberts, D. A., Robertson, S. H., Röhrken, M., Roney, J. M., Roodman, A., Rossi, A., Rotondo, M., Rozanska, M., Russo, G., Sacco, R., Said, S. Al, Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Santoro, V., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schroeder, T., Schubert, K. R., Schwanda, C., Schwartz, A. J., Schwitters, R. F., Sciacca, C., Seddon, R. M., Seino, Y., Sekula, S. J., Senyo, K., Seon, O., Serednyakov, S. I., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T. -A., Shimizu, N., Shiu, J. -G., Simi, G., Simon, F., Simonetto, F., Skovpen, Yu. I., Smith, J. G., Smith, A. J. S., So, R. Y., Sobie, R. J., Soffer, A., Sokoloff, M. D., Solodov, E. P., Solovieva, E., Spanier, S. M., Starič, M., Stroili, R., Sullivan, M. K., Sumisawa, K., Sumiyoshi, T., Summers, D. J., Sun, L., Takizawa, M., Tamponi, U., Tanida, K., Taras, P., Tasneem, N., Tenchini, F., Tisserand, V., Todyshevx, K. Yu., Touramanis, C., Uchida, M., Uglov, T., Unno, Y., Uno, S., Vahsen, S. E., Varner, G., Vasseur, G., Va'vra, J., Červenkov, D., Verderi, M., Vitale, L., Vorobyev, V., Voß, C., Wagner, S. R., Waheed, E., Waldi, R., Walsh, J. J., Wang, B., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, Y., Wilson, F. F., Wilson, J. R., Wisniewski, W. J., Won, E., Wormser, G., Wright, D. M., Wu, S. L., Ye, H., Yuan, C. Z., Yusa, Y., Zakharov, S., Zallo, A., Zani, L., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., and Zupanc, A.

Subjects
High Energy Physics - Experiment
Abstract

We present first evidence that the cosine of the CP-violating weak phase $2\beta$ is positive, and hence exclude trigonometric multifold solutions of the CKM Unitarity Triangle using a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} \pi^{+} \pi^{-}$ decays, where $h^{0} \in \{\pi^{0}, \eta, \omega \}$ denotes a light unflavored and neutral hadron. The measurement is performed combining the final data sets of the BaBar and Belle experiments collected at the $\Upsilon(4S)$ resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain $( 471 \pm 3 )\times 10^6\, B\bar{B}$ pairs recorded by the BaBar detector and $( 772 \pm 11 )\times 10^6\, B\bar{B}$ pairs recorded by the Belle detector. The results of the measurement are $\sin{2\beta} = 0.80 \pm 0.14 \,(\rm{stat.}) \pm 0.06 \,(\rm{syst.}) \pm 0.03 \,(\rm{model})$ and $\cos{2\beta} = 0.91 \pm 0.22 \,(\rm{stat.}) \pm 0.09 \,(\rm{syst.}) \pm 0.07 \,(\rm{model})$. The result for the direct measurement of the angle $\beta$ of the CKM Unitarity Triangle is $\beta = \left( 22.5 \pm 4.4 \,(\rm{stat.}) \pm 1.2 \,(\rm{syst.}) \pm 0.6 \,(\rm{model}) \right)^{\circ}$. The quoted model uncertainties are due to the composition of the $D^{0} \to K_{S}^{0} \pi^{+} \pi^{-}$ decay amplitude model, which is newly established by performing a Dalitz plot amplitude analysis using a high-statistics $e^{+}e^{-} \to c\bar{c}$ data sample. CP violation is observed in $B^{0} \to D^{(*)} h^{0}$ decays at the level of $5.1$ standard deviations. The significance for $\cos{2\beta}>0$ is $3.7$ standard deviations. The trigonometric multifold solution $\pi/2 - \beta = (68.1 \pm 0.7)^{\circ}$ is excluded at the level of $7.3$ standard deviations. The measurement resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle., Comment: To be submitted to Physical Review Letters

Published
2018
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46. Italian Real-Life Experience of Patients with Hereditary Transthyretin Amyloidosis Treated with Patisiran

Author

Di Stefano V, Fava A, Gentile L, Guaraldi P, Leonardi L, Poli L, Tagliapietra M, Vastola M, Fanara S, Ferrero B, Giorgi M, Perfetto F, Russo M, and Russo D

Subjects
hereditary transthyretin amyloidosis, patisiran, real-life, case reports, Therapeutics. Pharmacology, RM1-950
Abstract

Vincenzo Di Stefano,1 Antonella Fava,2 Luca Gentile,3 Pietro Guaraldi,4 Luca Leonardi,5 Loris Poli,6 Matteo Tagliapietra,7 Michele Vastola,8,9 Salvatore Fanara,1 Bruno Ferrero,10 Mauro Giorgi,2 Federico Perfetto,8 Massimo Russo,3 Domitilla Russo11 1Department of Biomedicine, Neuroscience and Advanced Diagnostic (BIND), University of Palermo, Palermo, Italy; 2Division of Cardiology, Heart Vascular and Thoracic Department, Città della Salute e della Scienza (Molinette Hospital- University of Turin), Turin, Italy; 3Unit of Neurology and Neuromuscular Disease, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy; 4IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy; 5Department of Neuroscience, Mental Health and Sensory Organs (NESMOS), Sapienza University of Rome Sant’Andrea Hospital, Rome, Italy; 6Department of Neurology, ASST Spedali Civili, Brescia, Italy; 7Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy; 8Tuscan Regional Amyloidosis Centre, Careggi University Hospital, Florence, Italy; 9Neurosciences Department, Florence University, Rome, Italy; 10SC Neurology 2U, Department of Neuroscience “Rita Levi Montalcini”, Città della Salute e della Scienza (Molinette Hospital -University of Turin), Turin, Italy; 11Division of Cardiology, Department of Clinical and Molecular Medicine, St. Andrea Hospital, Sapienza University, Rome, ItalyCorrespondence: Vincenzo Di Stefano, Department of Biomedicine, Neuroscience and advanced Diagnostic (BIND), University of Palermo Palermo, Italy, Via del Vespro 143, Palermo, 90127, Italy, Tel +39 3285781786, Fax +390916552974, Email vincenzo19689@gmail.comAbstract: Hereditary transthyretin amyloidosis (ATTRv) is a multisystemic, rare, inherited, progressive and adult-onset disease, affecting the sensorimotor nerves, heart, autonomic function and other organs. The actual scenario of pharmaceutical approaches for ATTRv amyloidosis includes five main groups: TTR stabilizers, TTR mRNA silencers, TTR fibril disruptors, inhibitor of TTR fibril seeding and gene therapy. Patisiran is a small, double-stranded interfering RNA encapsulated in a lipid nanoparticle, able to penetrate into hepatocytes, where it selectively targets TTR mRNA, reducing TTR production. We report and discuss 9 cases of different patients with ATTRv amyloidosis successfully managed with patisiran in the real clinical practice. Literature data, as well as the above presented case reports, show that this drug is effective and safe in improving both neurological and cardiovascular symptoms of ATTRv amyloidosis, and to maintain a good QoL, independently form the stage of the disease and the involved mutation. Recent studies correlated improved functional and biochemical outcomes with a regression of amyloid burden, especially at the cardiac level. Today, patisiran can be considered a valid therapeutic option for the management of patients with ATTRv amyloidosis and polyneuropathy and cardiovascular symptoms.Keywords: hereditary transthyretin amyloidosis, patisiran, real-life, case reports

Published
2022

47. DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS

Author

Aalseth, C. E., Acerbi, F., Agnes, P., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Antonioli, P., Arcelli, S., Ardito, R., Arnquist, I. J., Asner, D. M., Ave, M., Back, H. O., Olmedo, A. I. Barrado, Batignani, G., Bertoldo, E., Bettarini, S., Bisogni, M. G., Bocci, V., Bondar, A., Bonfini, G., Bonivento, W., Bossa, M., Bottino, B., Boulay, M., Bunker, R., Bussino, S., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Candela, A., Cantini, C., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Castellani, A., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Cereseto, R., Chepurnov, A., Cicalò, C., Cifarelli, L., Citterio, M., Cocco, A. G., Colocci, M., Corgiolu, S., Covone, G., Crivelli, P., D'Antone, I., D'Incecco, M., D'Urso, D., Rolo, M. D. Da Rocha, Daniel, M., Davini, S., de Candia, A., De Cecco, S., De Deo, M., De Filippis, G., De Guido, G., De Rosa, G., Dellacasa, G., Della Valle, M., Demontis, P., Derbin, A., Devoto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Dolgov, A., Dormia, I., Dussoni, S., Empl, A., Diaz, M. Fernandez, Ferri, A., Filip, C., Fiorillo, G., Fomenko, K., Franco, D., Froudakis, G. E., Gabriele, F., Gabrieli, A., Galbiati, C., Abia, P. Garcia, Gendotti, A., Ghisi, A., Giagu, S., Giampa, P., Gibertoni, G., Giganti, C., Giorgi, M. A., Giovanetti, G. K., Gligan, M. L., Gola, A., Gorchakov, O., Goretti, A. M., Granato, F., Grassi, M., Grate, J. W., Grigoriev, G. Y., Gromov, M., Guan, M., Guerra, M. B. B., Guerzoni, M., Gulino, M., Haaland, R. K., Hallin, A., Harrop, B., Hoppe, E. W., Horikawa, S., Hosseini, B., Hughes, D., Humble, P., Hungerford, E. V., Ianni, An., Jillings, C., Johnson, T. N., Keeter, K., Kendziora, C. L., Kim, S., Koh, G., Korablev, D., Korga, G., Kubankin, A., Kuss, M., Kuźniak, M., Lehnert, B., Li, X., Lissia, M., Lodi, G. U., Loer, B., Longo, G., Loverre, P., Lussana, R., Luzzi, L., Ma, Y., Machado, A. A., Machulin, I. N., Mandarano, A., Mapelli, L., Marcante, M., Margotti, A., Mari, S. M., Mariani, M., Maricic, J., Martoff, C. J., Mascia, M., Mayer, M., McDonald, A. B., Messina, A., Meyers, P. D., Milincic, R., Moggi, A., Moioli, S., Monroe, J., Monte, A., Morrocchi, M., Mount, B. J., Mu, W., Muratova, V. N., Murphy, S., Musico, P., Nania, R., Agasson, A. Navrer, Nikulin, I., Nosov, V., Nozdrina, A. O., Nurakhov, N. N., Oleinik, A., Oleynikov, V., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pavletcov, V., Pazzona, F., Peeters, S., Pelczar, K., Pellegrini, L. A., Pelliccia, N., Perotti, F., Perruzza, R., Fortes, V. Pesudo, Piemonte, C., Pilo, F., Pocar, A., Pollmann, T., Portaluppi, D., Pugachev, D. A., Qian, H., Radics, B., Raffaelli, F., Ragusa, F., Razeti, M., Razeto, A., Regazzoni, V., Regenfus, C., Reinhold, B., Renshaw, A. L., Rescigno, M., Retière, F., Riffard, Q., Rivetti, A., Rizzardini, S., Romani, A., Romero, L., Rossi, B., Rossi, N., Rubbia, A., Sablone, D., Salatino, P., Samoylov, O., García, E. Sánchez, Sands, W., Sant, M., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Segreto, E., Seifert, A., Semenov, D. A., Shchagin, A., Shekhtman, L., Shemyakina, E., Sheshukov, A., Simeone, M., Singh, P. N., Skensved, P., Skorokhvatov, M. D., Smirnov, O., Sobrero, G., Sokolov, A., Sotnikov, A., Speziale, F., Stainforth, R., Stanford, C., Suffritti, G. B., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Tosi, A., Trinchese, P., Unzhakov, E. V., Vacca, A., Vázquez-Jáuregui, E., Verducci, M., Viant, T., Villa, F., Vishneva, A., Vogelaar, B., Wada, M., Wahl, J., Walding, J., Walker, S., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Williams, R., Wojcik, M. M., Wu, S., Xiang, X., Xiao, X., Yang, C., Ye, Z., de Llano, A. Yllera, Zappa, F., Zappalà, G., Zhu, C., Zichichi, A., Zullo, M., and Zullo, A.

Subjects
Physics - Instrumentation and Detectors
Abstract

Building on the successful experience in operating the DarkSide-50 detector, the DarkSide Collaboration is going to construct DarkSide-20k, a direct WIMP search detector using a two-phase Liquid Argon Time Projection Chamber (LArTPC) with an active (fiducial) mass of 23 t (20 t). The DarkSide-20k LArTPC will be deployed within a shield/veto with a spherical Liquid Scintillator Veto (LSV) inside a cylindrical Water Cherenkov Veto (WCV). Operation of DarkSide-50 demonstrated a major reduction in the dominant $^{39}$Ar background when using argon extracted from an underground source, before applying pulse shape analysis. Data from DarkSide-50, in combination with MC simulation and analytical modeling, shows that a rejection factor for discrimination between electron and nuclear recoils of $\gt3\times10^9$ is achievable. This, along with the use of the veto system, is the key to unlocking the path to large LArTPC detector masses, while maintaining an "instrumental background-free" experiment, an experiment in which less than 0.1 events (other than $\nu$-induced nuclear recoils) is expected to occur within the WIMP search region during the planned exposure. DarkSide-20k will have ultra-low backgrounds than can be measured in situ. This will give sensitivity to WIMP-nucleon cross sections of $1.2\times10^{-47}$ cm$^2$ ($1.1\times10^{-46}$ cm$^2$) for WIMPs of $1$ TeV$/c^2$ ($10$ TeV$/c^2$) mass, to be achieved during a 5 yr run producing an exposure of 100 t yr free from any instrumental background. DarkSide-20k could then extend its operation to a decade, increasing the exposure to 200 t yr, reaching a sensitivity of $7.4\times10^{-48}$ cm$^2$ ($6.9\times10^{-47}$ cm$^2$) for WIMPs of $1$ TeV$/c^2$ ($10$ TeV$/c^2$) mass.

Published
2017
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48. Cryogenic Characterization of FBK RGB-HD SiPMs

Author

Aalseth, C. E., Acerbi, F., Agnes, P., Albuquerque, I. F. M., Alexander, T., Alici, A., Alton, A. K., Ampudia, P., Antonioli, P., Arcelli, S., Ardito, R., Arnquist, I. J., Asner, D. M., Back, H. O., Batignani, G., Bertoldo, E., Bettarini, S., Bisogni, M. G., Bocci, V., Bondar, A., Bonfini, G., Bonivento, W., Bossa, M., Bottino, B., Bunker, R., Bussino, S., Buzulutskov, A., Cadeddu, M., Cadoni, M., Caminata, A., Canci, N., Candela, A., Cantini, C., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Castellani, A., Catalanotti, S., Cataudella, V., Cavalcante, P., Cereseto, R., Chen, Y., Chepurnov, A., Chiavassa, A., Cicalò, C., Cifarelli, L., Citterio, M., Cocco, A. G., Colocci, M., Corgiolu, S., Covone, G., Crivelli, P., D'Antone, I., D'Incecco, M., Rolo, M. D. Da Rocha, Daniel, M., Davini, S., De Candia, A., De Cecco, S., De Deo, M., De Filippis, G., De Guido, G., De Rosa, G., Dellacasa, G., Demontis, P., Derbin, A. V., Devoto, A., Di Eusanio, F., Di Pietro, G., Dionisi, C., Dolgov, A., Dormia, I., Dussoni, S., Empl, A., Ferri, A., Filip, C., Fiorillo, G., Fomenko, K., Franco, D., Froudakis, G. E., Gabriele, F., Gabrieli, A., Galbiati, C., Abia, P. Garcia, Gendotti, A., Ghisi, A., Giagu, S., Gibertoni, G., Giganti, C., Giorgi, M., Giovanetti, G. K., Gligan, M. L., Gola, A., Gorchakov, O., Goretti, A. M., Granato, F., Grassi, M., Grate, J. W., Grigoriev, G. Y., Gromov, M., Guan, M., Guerra, M. B. B., Guerzoni, M., Gulino, M., Haaland, R. K., Harrop, B., Hoppe, E. W., Horikawa, S., Hosseini, B., Hughes, D., Humble, P., Hungerford, E. V., Ianni, An., Cabre, S. Jimenez, Johnson, T. N., Keeter, K., Kendziora, C. L., Kim, S., Koh, G., Korablev, D., Korga, G., Kubankin, A., Kugathasan, R., Kuss, M., Li, X., Lissia, M., Lodi, G. U., Loer, B., Longo, G., Lussana, R., Luzzi, L., Ma, Y., Machado, A. A., Machulin, I. N., Mais, L., Mandarano, A., Mapelli, L., Marcante, M., Margotti, A., Mari, S. M., Mariani, M., Maricic, J., Marinelli, M., Marras, D., Martoff, C. J., Mascia, M., Messina, A., Meyers, P. D., Milincic, R., Moggi, A., Moioli, S., Monasterio, S., Monroe, J., Monte, A., Morrocchi, M., Mu, W., Muratova, V. N., Murphy, S., Musico, P., Nania, R., Napolitano, J., Agasson, A. Navrer, Nikulin, I., Nosov, V., Nozdrina, A. O., Nurakhov, N. N., Oleinik, A., Oleynikov, V., Orsini, M., Ortica, F., Pagani, L., Pallavicini, M., Palmas, S., Pandola, L., Pantic, E., Paoloni, E., Paternoster, G., Pavletcov, V., Pazzona, F., Pelczar, K., Pellegrini, L. A., Pelliccia, N., Perotti, F., Perruzza, R., Piemonte, C., Pilo, F., Pocar, A., Portaluppi, D., Poudel, S. S., Pugachev, D. A., Qian, H., Radics, B., Raffaelli, F., Ragusa, F., Randle, K., Razeti, M., Razeto, A., Regazzoni, V., Regenfus, C., Reinhold, B., Renshaw, A. L., Rescigno, M., Riffard, Q., Rivetti, A., Romani, A., Romero, L., Rossi, B., Rossi, N., Rubbia, A., Sablone, D., Salatino, P., Samoylov, O., Sands, W., Sant, M., Santorelli, R., Savarese, C., Scapparone, E., Schlitzer, B., Scioli, G., Sechi, E., Segreto, E., Seifert, A., Semenov, D. A., Serci, S., Shchagin, A., Shekhtman, L., Shemyakina, E., Sheshukov, A., Simeone, M., Singh, P. N., Skorokhvatov, M. D., Smirnov, O., Sobrero, G., Sokolov, A., Sotnikov, A., Stanford, C., Suffritti, G. B., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Tosi, A., Trinchese, P., Unzhakov, E. V., Vacca, A., Verducci, M., Viant, T., Villa, F., Vishneva, A., Vogelaar, B., Wada, M., Wahl, J., Walker, S., Wang, H., Wang, Y., Watson, A. W., Westerdale, S., Wilhelmi, J., Williams, R., Wojcik, M. M., Wu, S., Xiang, X., Xiao, X., Yang, C., Ye, Z., Zappa, F., Zappalà, G., Zhu, C., Zichichi, A., and Zuzel, G.

Subjects
Physics - Instrumentation and Detectors
Abstract

We report on the cryogenic characterization of Red Green Blue - High Density (RGB-HD) SiPMs developed at Fondazione Bruno Kessler (FBK) as part of the DarkSide program of dark matter searches with liquid argon time projection chambers. A dedicated setup was used to measure the primary dark noise, the correlated noise, and the gain of the SiPMs at varying temperatures. A custom-made data acquisition system and analysis software were used to precisely characterize these parameters. We demonstrate that FBK RGB-HD SiPMs with low quenching resistance (RGB-HD-LR$_q$) can be operated from 40 K to 300 K with gains in the range $10^5$ to $10^6$ and noise rates on the order of a few Hz/mm$^2$.

Published
2017
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49. Superluminal X-waves in a polariton quantum fluid

Author

Gianfrate, A., Dominici, L., Voronych, O., Matuszewski, M., Stobińska, M., Ballarini, D., De Giorgi, M., Gigli, G., and Sanvitto, D.

Subjects
Condensed Matter - Other Condensed Matter, Condensed Matter - Quantum Gases, Nonlinear Sciences - Pattern Formation and Solitons, Physics - Fluid Dynamics
Abstract

In this work we experimentally demonstrate for the first time spontaneous generation of two-dimensional exciton-polariton X-waves. X-waves belong to the family of localized packets, which are capable of sustaining their shape with no spreading even in the linear regime. This allows to keep the packet shape and size for very low densities and very long times compared, for instance, to soliton waves, which always necessitate a nonlinearity to compensate the diffusion. Here we exploit the polariton nonlinearity and unique structured dispersion, comprising both positive- and negative-mass curvatures, to trigger an asymmetric four wave mixing in the momentum space. This ultimately enables self-formation of a spatial X-wave front. By means of ultrafast imaging experiments we observe the early reshaping of the initial Gaussian packet into the X-pulse and its propagation even for vanishing small densities. This allows us to outline the crucial effects and parameters driving the phenomena and to tune the degree of peak superluminal propagation, which we found to be in a good agreement with numerical simulations., Comment: 10 pages, 6 figures, 2 ancillary movie files

Published
2017
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50. Experimental description of heat transfer processes at two-phase flow in microchannels towards the development of a heat sink for PV panels.

Author

Pontes, Pedro, Marseglia, Guido, Perez, Mariana, de Giorgi, M. G., Moreira, A. L. N., and Moita, Ana S.

Abstract

The development of new and more effective cooling technologies is required for several high thermal power dissipation applications such as in electronics cooling or high concentrated photovoltaic panels. The present paper addresses an experimental study on the development of a microchannel based heat sink to cool photovoltaic panels. Experiments focus on the test of a microchannel, with geometry and dimensions optimized from previous work. The analysis performed here emphasizes the experimental characterization of flow boiling in the microchannel under different working conditions. The results include pressure drop and heat flux maps, obtained combining pressure sensors with high-speed imaging and time resolved thermography. The analysis performed was able to identify where nucleation sites were formed. Slug flow interfacial heat transfer could be observed and accurately described in the heat flux maps. Overall, results show the high potential of combining high-speed imaging with time resolved infrared thermography to characterize complex flows. These results also show that there is a good potential for this microchannel based flow cooling in removing the required heat fluxes for the application considered here, when compared to other liquid and air-cooling technologies. [ABSTRACT FROM AUTHOR]

Published
2024
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