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1,846 results on '"Lehner, F."'

9. Publisher Correction: Insights from Earth system model initial-condition large ensembles and future prospects

Author

Deser, C, Lehner, F, Rodgers, KB, Ault, T, Delworth, TL, DiNezio, PN, Fiore, A, Frankignoul, C, Fyfe, JC, Horton, DE, Kay, JE, Knutti, R, Lovenduski, NS, Marotzke, J, McKinnon, KA, Minobe, S, Randerson, J, Screen, JA, Simpson, IR, and Ting, M

Subjects
Atmospheric Sciences, Physical Geography and Environmental Geoscience, Environmental Science and Management
Abstract

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Published
2020

10. Community climate simulations to assess avoided impacts in 1.5 and 2°C futures

Author

Sanderson, BM, Xu, Y, Tebaldi, C, Wehner, M, O'neill, B, Jahn, A, Pendergrass, AG, Lehner, F, Strand, WG, Lin, L, Knutti, R, and Francois Lamarque, J

Abstract

The Paris Agreement of December 2015 stated a goal to pursue efforts to keep global temperatures below 1.5°C above preindustrial levels and well below 2°C. The IPCC was charged with assessing climate impacts at these temperature levels, but fully coupled equilibrium climate simulations do not currently exist to inform such assessments. In this study, we produce a set of scenarios using a simple model designed to achieve long-term 1.5 and 2°C temperatures in a stable climate. These scenarios are then used to produce century-scale ensemble simulations using the Community Earth System Model, providing impact-relevant long-term climate data for stabilization pathways at 1.5 and 2°C levels and an overshoot 1.5°C case, which are realized (for the 21st century) in the coupled model and are freely available to the community. Here we describe the design of the simulations and a brief overview of their impact-relevant climate response. Exceedance of historical record temperature occurs with 60% greater frequency in the 2°C climate than in a 1.5°C climate aggregated globally, and with twice the frequency in equatorial and arid regions. Extreme precipitation intensity is statistically significantly higher in a 2.0°C climate than a 1.5°C climate in some specific regions (but not all). The model exhibits large differences in the Arctic, which is ice-free with a frequency of 1 in 3 years in the 2.0°C scenario, and 1 in 40 years in the 1.5°C scenario. Significance of impact differences with respect to multi-model variability is not assessed.

Published
2017

11. Broadening the scope of anthropogenic influence in extreme event attribution

Author

Jézéquel, A., Bastos, A., Wilson, A.M., Ramos, A.M., Shepherd, T.G., Stuart-Smith, R., Kimutai, J., Moemken, J., Zscheischler, Jakob, Faranda, D., Lehner, F., Le Grix, N., Sippel, S., Bevacqua, Emanuele, Rufat, S., D'Andrea, F., Lloyd, E.A., Van Loon, A.F., Jézéquel, A., Bastos, A., Wilson, A.M., Ramos, A.M., Shepherd, T.G., Stuart-Smith, R., Kimutai, J., Moemken, J., Zscheischler, Jakob, Faranda, D., Lehner, F., Le Grix, N., Sippel, S., Bevacqua, Emanuele, Rufat, S., D'Andrea, F., Lloyd, E.A., and Van Loon, A.F.

Abstract

As extreme event attribution (EEA) matures, explaining the impacts of extreme events has risen to be a key focus for attribution scientists. Studies of this type usually assess the contribution of anthropogenic climate change to observed impacts. Other scientific communities have developed tools to assess how human activities influence impacts of extreme weather events on ecosystems and societies. For example, the disaster risk reduction (DRR) community analyses how the structure of human societies affects exposure, vulnerability, and ultimately the impacts of extreme weather events, with less attention to the role of anthropogenic climate change. In this perspective, we argue that adapting current practice in EEA to also consider other causal factors in attribution of extreme weather impacts would provide richer and more comprehensive insight into the causes of disasters. To this end, we propose a framework for EEA that would generate a more complete picture of human influences on impacts and bridge the gap between the EEA and DRR communities. We provide illustrations for five case studies: the 2021-2022 Kenyan drought; the 2013-2015 marine heatwave in the northeast Pacific; the 2017 forest fires in Portugal; Acqua Alta (flooding) events in Venice and evaluation of the efficiency of the Experimental Electromechanical Module (MoSE), an ensemble of mobile barriers that can be activated to mitigate the influx of seawater in the city; and California droughts and the Forecast Informed Reservoir Operations (FIRO) system as an adaptation strategy

Published
2024

12. First observation of Bs -> D_{s2}^{*+} X mu nu decays

Author

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

Subjects
High Energy Physics - Experiment
Abstract

Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the semileptonic decays Bs -> Ds+ X mu nu and Bs -> D0 K+ X mu nu are detected. Two structures are observed in the D0 K+ mass spectrum at masses consistent with the known D^+_{s1}(2536) and $D^{*+}_{s2}(2573) mesons. The measured branching fractions relative to the total Bs semileptonic rate are B(Bs -> D_{s2}^{*+} X mu nu)/B(Bs -> X mu nu)= (3.3\pm 1.0\pm 0.4)%, and B(Bs -> D_{s1}^+ X munu)/B(Bs -> X mu nu)= (5.4\pm 1.2\pm 0.5)%, where the first uncertainty is statistical and the second is systematic. This is the first observation of the D_{s2}^{*+} state in Bs decays; we also measure its mass and width., Comment: 8 pages 2 figures. Published in Physics Letters B

Published
2011
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13. Freeness of Linear and Quadratic Forms in von Neumann Algebras

Author

Chistyakov, G. P., Götze, F., and Lehner, F.

Subjects
Mathematics - Operator Algebras, 46L53
Abstract

We characterize semicircular distribution by the freeness of linear and quadratic forms in noncommutative random variables from a tracial $W^*$-probability space with relaxed moment conditions., Comment: 15 pages; AMS-LaTeX, to appear in J Funct An

Published
2010
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14. Measurement of sigma(pp -> b anti-b X) at \sqrt(s)=7 TeV in the forward region

Author

LHCb Collaboration, Aaij, R., Beteta, C. Abellan, Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Agari, M., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Alfonsi, M., Cartelle, P. Alvarez, Alves Jr, A. A., Amato, S., Amhis, Y., Amoraal, J., Anderson, J., Nobrega, R. Antunes, Appleby, R., Gutierrez, O. Aquines, Arefyev, A., Arrabito, L., Artuso, M., Aslanides, E., Auriemma, G., Bachmann, S., Bagaturia, Y., Bailey, D. S., Balagura, V., Baldini, W., Barber, G., Barham, C., Barlow, R. J., Barsuk, S., Basiladze, S., Bates, A., Bauer, C., Bauer, Th., Bay, A., Bediaga, I., Bellunato, T., Belous, K., Belyaev, I., Benayoun, M., Bencivenni, G., Bernet, R., Bernhard, R. P., Bettler, M. -O., van Beuzekom, M., Bibby, J. H., Bifani, S., Bizzeti, A., Bjørnstad, P. M., Blake, T., Blanc, F., Blanks, C., Blouw, J., Blusk, S., Bobrov, A., Bocci, V., Bochin, B., Bonaccorsi, E., Bondar, A., Bondar, N., Bonivento, W., Borghi, S., Borgia, A., Bos, E., Bowcock, T. J. V., Bozzi, C., Brambach, T., Brand, J. van den, Brarda, L., Bressieux, J., Brisbane, S., Britsch, M., Brook, N. H., Brown, H., Brusa, S., Büchler-Germann, A., Bursche, A., Buytaert, J., Cadeddu, S., Carvajal, J. M. Caicedo, Callot, O., Calvi, M., Gomez, M. Calvo, Camboni, A., Cameron, W., Camilleri, L., Campana, P., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carroll, J., Carson, L., Akiba, K. Carvalho, Casse, G., Cattaneo, M., Chadaj, B., Charles, M., Charpentier, Ph., Cheng, J., Chiapolini, N., Chlopik, A., Christiansen, J., Ciambrone, P., Vidal, X. Cid, Clark, P. J., Clarke, P. E. L., Clemencic, M., Cliff, H. V., Closier, J., Coca, C., Coco, V., Cogan, J., Collins, P., Comerma-Montells, A., Constantin, F., Conti, G., Contu, A., Cooke, P., Coombes, M., Corajod, B., Corti, G., Cowan, G. A., Currie, R., D'Almagne, B., D'Ambrosio, C., D'Antone, I., Da Silva, W., Dane', E., David, P., De Bonis, I., De Capua, S., De Cian, M., De Lorenzi, F., De Miranda, J. M., De Paula, L., De Simone, P., Decamp, D., Decreuse, G., Degaudenzi, H., Deissenroth, M., Del Buono, L., Densham, C. J., Deplano, C., Deschamps, O., Dettori, F., Dickens, J., Dijkstra, H., Dima, M., Donleavy, S., Dornan, P., Dossett, D., Dovbnya, A., Dumps, R., Dupertuis, F., Dwyer, L., Dzhelyadin, R., Eames, C., Easo, S., Egede, U., Egorychev, V., Eidelman, S., van Eijk, D., Eisele, F., Eisenhardt, S., Eklund, L., d'Enterria, D. G., Pereira, D. Esperante, Estève, L., Fanchini, E., Färber, C., Fardell, G., Farinelli, C., Farry, S., Fave, V., Felici, G., Albor, V. Fernandez, Ferro-Luzzi, M., Filippov, S., Fitzpatrick, C., Flegel, W., Fontanelli, F., Forti, C., Forty, R., Fournier, C., Franek, B., Frank, M., Frei, C., Frosini, M., Pazos, J. L. Fungueirino, Furcas, S., Torreira, A. Gallas, Galli, D., Gandelman, M., Gandini, P., Gao, Y., Garnier, J-C., Garrido, L., Gascon, D., Gaspar, C., Cue, A. Gaspar De Valenzuela, Gassner, J., Gauvin, N., Gavillet, P., Gersabeck, M., Gershon, T., Ghez, Ph., Gibson, V., Gligorov, V. V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gong, G., Gong, H., Gordon, H., Gándara, M. Grabalosa, Gracco, V., Diaz, R. Graciani, Cardoso, L. A. Granado, Graugés, E., Graziani, G., Grecu, A., Gregson, S., Guerrer, G., Gui, B., Gushchin, E., Guz, Yu., Guzik, Z., Gys, T., Haefeli, G., Haines, S. C., Hampson, T., Hansmann-Menzemer, S., Harji, R., Harnew, N., Harrison, P. F., He, J., Hennessy, K., Henrard, P., Morata, J. A. Hernando, van Herwijnen, E., Hicheur, A., Hicks, E., Hilke, H. J., Hofmann, W., Holubyev, K., Hopchev, P., Hulsbergen, W., Hunt, P., Huse, T., Huston, R. S., Hutchcroft, D., Iacoangeli, F., Iakovenko, V., Escudero, C. Iglesias, Ilgner, C., Ilten, P., Imong, J., Jacobsson, R., Hussein, M. Jahjah, Jamet, O., Jans, E., Jansen, F., Jaton, P., Jean-Marie, B., John, M., Johnson, D., Jones, C. R., Jost, B., Kapusta, F., Karbach, T. M., Kashchuk, A., Katvars, S., Keaveney, J., Kerzel, U., Ketel, T., Keune, A., Khalil, S., Khanji, B., Kim, Y. M., Knecht, M., Koblitz, S., Konoplyannikov, A., Koppenburg, P., Korolev, M., Kozlinskiy, A., Kravchuk, L., Kristic, R., Krocker, G., Krokovny, P., Kruse, F., Kruzelecki, K., Kucharczyk, M., Kudryashov, I., Kukulak, S., Kumar, R., Kvaratskheliya, T., La Thi, V. N., Lacarrere, D., Lafferty, G., Lai, A., Lambert, R. W., Lanfranchi, G., Langenbruch, C., Latham, T., Gac, R. Le, Lees, J. -P., Lefèvre, R., Leflat, A., Lefrançois, J., Lehner, F., Lenzi, M., Leroy, O., Lesiak, T., Li, L., Li, Y. Y., Gioi, L. Li, Libby, J., Lieng, M., Lindner, R., Lindsay, S., Linn, C., Liu, B., Liu, G., Löchner, S., Lopes, J. H., Asamar, E. Lopez, Lopez-March, N., Loveridge, P., Luisier, J., M'charek, B., Machefert, F., Machikhiliyan, I. V., Maciuc, F., Maev, O., Magnin, J., Maier, A., Malde, S., Mamunur, R. M. D., Manca, G., Mancinelli, G., Mangiafave, N., Marconi, U., Märki, R., Marks, J., Martellotti, G., Martens, A., Martin, L., Santos, D. Martinez, Massafferri, A., Mathe, Z., Matteuzzi, C., Matveev, V., Maurice, E., Maynard, B., Mazurov, A., McGregor, G., McNulty, R., Mclean, C., Merk, M., Merkel, J., Merkin, M., Messi, R., Miglioranzi, S., Minard, M. -N., Moine, G., Monteil, S., Moran, D., Morant, J., Morawski, P., Morris, J. V., Moscicki, J., Mountain, R., Mous, I., Muheim, F., Müller, K., Muresan, R., Murtas, F., Muryn, B., Musy, M., Mylroie-Smith, J., Naik, P., Nakada, T., Nandakumar, R., Nardulli, J., Nawrot, A., Nedos, M., Needham, M., Neufeld, N., Neustroev, P., Nicol, M., Nicolas, L., Nies, S., Niess, V., Nikitin, N., Noor, A., Oblakowska-Mucha, A., Obraztsov, V., Oggero, S., Okhrimenko, O., Oldeman, R., Orlandea, M., Ostankov, A., Pal, B., Palacios, J., Palutan, M., Panman, J., Papadelis, A., Papanestis, A., Pappagallo, M., Parkes, C., Parkinson, C. J., Passaleva, G., Patel, G. D., Patel, M., Paterson, S. K., Patrick, G. N., Patrignani, C., Pauna, E., Pauna, C., Pavel, C., Alvarez, A. Pazos, Pellegrino, A., Penso, G., Altarelli, M. Pepe, Perazzini, S., Perego, D. L., Trigo, E. Perez, Yzquierdo, A. Pérez-Calero, Perret, P., Pessina, G., Petrella, A., Petrolini, A., Olloqui, E. Picatoste, Valls, B. Pie, Piedigrossi, D., Pietrzyk, B., Pinci, D., Playfer, S., Casasus, M. Plo, Poli-Lener, M., Polok, G., Poluektov, A., Polycarpo, E., Popov, D., Popovici, B., Poss, S., Potterat, C., Powell, A., Pozzi, S., Pree, T. du, Pugatch, V., Navarro, A. Puig, Qian, W., Rademacker, J. H., Rakotomiaramanana, B., Raniuk, I., Raven, G., Redford, S., Reece, W., Reis, A. C. dos, Ricciardi, S., Riera, J., Rinnert, K., Romero, D. A. Roa, Robbe, P., Rodrigues, E., Rodrigues, F., Cobo, C. Rodriguez, Perez, P. Rodriguez, Rogers, G. J., Romanovsky, V., Sanabria, E. Rondan, Rosello, M., Rouvinet, J., Roy, L., Ruf, T., Ruiz, H., Rummel, C., Rusinov, V., Sabatino, G., Silva, J. J. Saborido, Sagidova, N., Sail, P., Saitta, B., Sakhelashvili, T., Salzmann, C., Varela, A. Sambade, Sannino, M., Santacesaria, R., Santinelli, R., Santovetti, E., Sapunov, M., Sarti, A., Satriano, C., Satta, A., Savidge, T., Savrie, M., Savrina, D., Schaack, P., Schiller, M., Schleich, S., Schmelling, M., Schmidt, B., Schneider, O., Schneider, T., Schopper, A., Schune, M. -H., Schwemmer, R., Sciubba, A., Seco, M., Semennikov, A., Senderowska, K., Serra, N., Serrano, J., Shao, B., Shapkin, M., Shapoval, I., Shatalov, P., Shcheglov, Y., Shears, T., Shekhtman, L., Shevchenko, V., Shires, A., Sigurdsson, S., Simioni, E., Skottowe, H. P., Skwarnicki, T., Smale, N., Smith, A., Smith, A. C., Smith, N. A., Sobczak, K., Soler, F. J. P., Solomin, A., Somogy, P., Soomro, F., De Paula, B. Souza, Spaan, B., Sparkes, A., Spiridenkov, E., Spradlin, P., Srednicki, A., Stagni, F., Stahl, S., Steiner, S., Steinkamp, O., Stenyakin, O., Stoica, S., Stone, S., Storaci, B., Straumann, U., Styles, N., Szczekowski, M., Szczypka, P., Szumlak, T., T'Jampens, S., Tarkovskiy, E., Teodorescu, E., Terrier, H., Teubert, F., Thomas, C., Thomas, E., van Tilburg, J., Tisserand, V., Tobin, M., Topp-Joergensen, S., Tran, M. T., Traynor, S., Trunk, U., Tsaregorodtsev, A., Tuning, N., Ukleja, A., Ullaland, O., Urquijo, P., Uwer, U., Vagnoni, V., Valenti, G., Gomez, R. Vazquez, Regueiro, P. Vazquez, Vecchi, S., Velthuis, J. J., Veltri, M., Vervink, K., Viaud, B., Videau, I., Vilasis-Cardona, X., Visniakov, J., Vollhardt, A., Volyanskyy, D., Voong, D., Vorobyev, A., Vorobyev, An., Voss, H., Wacker, K., Wandernoth, S., Wang, J., Ward, D. R., Webber, A. D., Websdale, D., Whitehead, M., Wiedner, D., Wiggers, L., Wilkinson, G., Williams, M. P., Williams, M., Wilson, F. F., Wishahi, J., Witek, M., Witzeling, W., Woodward, M. L., Wotton, S. A., Wyllie, K., Xie, Y., Xing, F., Yang, Z., Smit, G. Ybeles, Young, R., Yushchenko, O., Zeng, M., Zhang, L., Zhang, Y., Zhelezov, A., and Zverev, E.

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

Decays of b hadrons into final states containing a D0 meson and a muon are used to measure the b anti-b production cross-section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. In the pseudorapidity interval 2 < eta < 6 and integrated over all transverse momenta we find that the average cross-section to produce b-flavoured or anti-b-flavoured hadrons is (75.3 +/- 5.4 +/- 13.0) microbarns., Comment: 11 pages, 5 figures, to be published in Physics Lett. B; v2 minor changes

Published
2010
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15. Prompt K_short production in pp collisions at sqrt(s)=0.9 TeV

Author

LHCb Collaboration, Aaij, R., Beteta, C. Abellan, Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Agari, M., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Alfonsi, M., Cartelle, P. Alvarez, Alves Jr, A. A., Amato, S., Amhis, Y., Amoraal, J., Anderson, J., Nobrega, R. Antunes, Appleby, R., Gutierrez, O. Aquines, Arefyev, A., Arrabito, L., Artuso, M., Aslanides, E., Auriemma, G., Bachmann, S., Bagaturia, Y., Bailey, D. S., Balagura, V., Baldini, W., Barber, G., Barham, C., Barlow, R. J., Barsuk, S., Basiladze, S., Bates, A., Bauer, C., Bauer, Th., Bay, A., Bediaga, I., Bellunato, T., Belous, K., Belyaev, I., Benayoun, M., Bencivenni, G., Bernet, R., Bernhard, R. P., Bettler, M. -O., van Beuzekom, M., Bibby, J. H., Bifani, S., Bizzeti, A., Bjørnstad, P. M., Blake, T., Blanc, F., Blanks, C., Blouw, J., Blusk, S., Bobrov, A., Bocci, V., Bochin, B., Bonaccorsi, E., Bondar, A., Bondar, N., Bonivento, W., Borghi, S., Borgia, A., Bos, E., Bowcock, T. J. V., Bozzi, C., Brambach, T., Brand, J. van den, Brarda, L., Bressieux, J., Brisbane, S., Britsch, M., Brook, N. H., Brown, H., Brusa, S., Büchler-Germann, A., Bursche, A., Buytaert, J., Cadeddu, S., Carvajal, J. M. Caicedo, Callot, O., Calvi, M., Gomez, M. Calvo, Camboni, A., Cameron, W., Camilleri, L., Campana, P., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carroll, J., Carson, L., Akiba, K. Carvalho, Casse, G., Cattaneo, M., Chadaj, B., Charles, M., Charpentier, Ph., Cheng, J., Chiapolini, N., Chlopik, A., Christiansen, J., Ciambrone, P., Vidal, X. Cid, Clark, P. J., Clarke, P. E. L., Clemencic, M., Cliff, H. V., Closier, J., Coca, C., Coco, V., Cogan, J., Collins, P., Comerma-Montells, A., Constantin, F., Conti, G., Contu, A., Cooke, P., Coombes, M., Corajod, B., Corti, G., Cowan, G. A., Currie, R., D'Almagne, B., D'Ambrosio, C., D'Antone, I., Da Silva, W., Dane', E., David, P., De Bonis, I., De Capua, S., De Cian, M., De Lorenzi, F., De Miranda, J. M., De Paula, L., De Simone, P., Decamp, D., Decreuse, G., Degaudenzi, H., Deissenroth, M., Del Buono, L., Densham, C. J., Deplano, C., Deschamps, O., Dettori, F., Dickens, J., Dijkstra, H., Dima, M., Donleavy, S., Dornan, P., Dossett, D., Dovbnya, A., Dumps, R., Dupertuis, F., Dwyer, L., Dzhelyadin, R., Eames, C., Easo, S., Egede, U., Egorychev, V., Eidelman, S., van Eijk, D., Eisele, F., Eisenhardt, S., Eklund, L., d'Enterria, D. G., Pereira, D. Esperante, Estève, L., Fanchini, E., Färber, C., Fardell, G., Farinelli, C., Farry, S., Fave, V., Felici, G., Albor, V. Fernandez, Ferro-Luzzi, M., Filippov, S., Fitzpatrick, C., Flegel, W., Fontanelli, F., Forti, C., Forty, R., Fournier, C., Franek, B., Frank, M., Frei, C., Frosini, M., Pazos, J. L. Fungueirino, Furcas, S., Torreira, A. Gallas, Galli, D., Gandelman, M., Gandini, P., Gao, Y., Garnier, J-C., Garrido, L., Gascon, D., Gaspar, C., Cue, A. Gaspar De Valenzuela, Gassner, J., Gauvin, N., Gavillet, P., Gersabeck, M., Gershon, T., Ghez, Ph., Gibson, V., Gilitsky, Yu., Gligorov, V. V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gong, G., Gong, H., Gordon, H., Gándara, M. Grabalosa, Gracco, V., Diaz, R. Graciani, Cardoso, L. A. Granado, Graugés, E., Graziani, G., Grecu, A., Gregson, S., Guerrer, G., Gui, B., Gushchin, E., Guz, Yu., Guzik, Z., Gys, T., Haefeli, G., Haines, S. C., Hampson, T., Hansmann-Menzemer, S., Harji, R., Harnew, N., Harrison, P. F., He, J., Hennessy, K., Henrard, P., Morata, J. A. Hernando, van Herwijnen, E., Hicheur, A., Hicks, E., Hilke, H. J., Hofmann, W., Holubyev, K., Hopchev, P., Hulsbergen, W., Hunt, P., Huse, T., Huston, R. S., Hutchcroft, D., Iacoangeli, F., Iakovenko, V., Escudero, C. Iglesias, Ilgner, C., Imong, J., Jacobsson, R., Hussein, M. Jahjah, Jamet, O., Jans, E., Jansen, F., Jaton, P., Jean-Marie, B., John, M., Johnson, D., Jones, C. R., Jost, B., Kapusta, F., Karbach, T. M., Kashchuk, A., Katvars, S., Keaveney, J., Kerzel, U., Ketel, T., Keune, A., Khalil, S., Khanji, B., Kim, Y. M., Knecht, M., Koblitz, S., Konoplyannikov, A., Koppenburg, P., Korolev, M., Kozlinskiy, A., Kravchuk, L., Kristic, R., Krocker, G., Krokovny, P., Kruse, F., Kruzelecki, K., Kucharczyk, M., Kudryashov, I., Kukulak, S., Kumar, R., Kvaratskheliya, T., La Thi, V. N., Lacarrere, D., Lai, A., Lambert, R. W., Lanfranchi, G., Langenbruch, C., Latham, T., Gac, R. Le, Lees, J. -P., Lefèvre, R., Leflat, A., Lefrançois, J., Lehner, F., Lenzi, M., Leroy, O., Lesiak, T., Li, L., Li, Y. Y., Gioi, L. Li, Libby, J., Lieng, M., Lindner, R., Lindsey, S., Linn, C., Liu, B., Liu, G., Löchner, S., Lopes, J. H., Asamar, E. Lopez, Lopez-March, N., Loveridge, P., Luisier, J., M'charek, B., Machefert, F., Machikhiliyan, I. V., Maciuc, F., Maev, O., Magnin, J., Maier, A., Malde, S., Mamunur, R. M. D., Manca, G., Mancinelli, G., Mangiafave, N., Marconi, U., Märki, R., Marks, J., Martellotti, G., Martens, A., Martin, L., Santos, D. Martinez, Massaferri, A., Mathe, Z., Matteuzzi, C., Matveev, V., Maurice, E., Maynard, B., Mazurov, A., McGregor, G., McNulty, R., Mclean, C., Merk, M., Merkel, J., Merkin, M., Messi, R., Metlica, F. C. D., Miglioranzi, S., Minard, M. -N., Moine, G., Monteil, S., Moran, D., Morant, J., Morris, J. V., Moscicki, J., Mountain, R., Mous, I., Muheim, F., Muresan, R., Murtas, F., Muryn, B., Musy, M., Mylroie-Smith, J., Naik, P., Nakada, T., Nandakumar, R., Nardulli, J., Nawrot, A., Nedos, M., Needham, M., Neufeld, N., Neustroev, P., Nicol, M., Nicolas, L., Nies, S., Niess, V., Nikitin, N., Noor, A., Oblakowska-Mucha, A., Obraztsov, V., Oggero, S., Okhrimenko, O., Oldeman, R., Orlandea, M., Ostankov, A., Palacios, J., Palutan, M., Panman, J., Papadelis, A., Papanestis, A., Pappagallo, M., Parkes, C., Parkinson, C. J., Passaleva, G., Patel, G. D., Patel, M., Paterson, S. K., Patrick, G. N., Patrignani, C., Pauna, E., Pauna, C., Pavel, C., Alvarez, A. Pazos, Pellegrino, A., Penso, G., Altarelli, M. Pepe, Perazzini, S., Perego, D. L., Trigo, E. Perez, Yzquierdo, A. Pérez-Calero, Perret, P., Pessina, G., Petrella, A., Petrolini, A., Olloqui, E. Picatoste, Valls, B. Pie, Piedigrossi, D., Pietrzyk, B., Pinci, D., Playfer, S., Casasus, M. Plo, Poli-Lener, M., Polok, G., Poluektov, A., Polycarpo, E., Popov, D., Popovici, B., Poss, S., Potterat, C., Powell, A., Pozzi, S., Pree, T. du, Pugatch, V., Navarro, A. Puig, Qian, W., Rademacker, J. H., Rakotomiaramanana, B., Raniuk, I., Raven, G., Redford, S., Reece, W., Reis, A. C. dos, Ricciardi, S., Riera, J., Rinnert, K., Romero, D. A. Roa, Robbe, P., Rodrigues, E., Rodrigues, F., Cobo, C. Rodriguez, Perez, P. Rodriguez, Rogers, G. J., Romanovsky, V., Sanabria, E. Rondan, Rosello, M., Rospabe, G., Rouvinet, J., Roy, L., Ruf, T., Ruiz, H., Rummel, C., Rusinov, V., Sabatino, G., Silva, J. J. Saborido, Sagidova, N., Sail, P., Saitta, B., Sakhelashvili, T., Salzmann, C., Varela, A. Sambade, Sannino, M., Santacesaria, R., Santinelli, R., Santovetti, E., Sapunov, M., Sarti, A., Satriano, C., Satta, A., Savidge, T., Savrie, M., Savrina, D., Schaack, P., Schiller, M., Schleich, S., Schmelling, M., Schmidt, B., Schneider, O., Schneider, T., Schopper, A., Schune, M. -H., Schwemmer, R., Sciubba, A., Seco, M., Semennikov, A., Senderowska, K., Serra, N., Serrano, J., Shao, B., Shapkin, M., Shapoval, I., Shatalov, P., Shcheglov, Y., Shears, T., Shekhtman, L., Shevchenko, V., Shires, A., Sigurdsson, S., Simioni, E., Skottowe, H. P., Skwarnicki, T., Smale, N., Smith, A., Smith, A. C., Smith, N. A., Sobczak, K., Soler, F. J. P., Solomin, A., Somogy, P., Soomro, F., De Paula, B. Souza, Spaan, B., Sparkes, A., Spiridenkov, E., Spradlin, P., Srednicki, A., Stagni, F., Stahl, S., Steiner, S., Steinkamp, O., Stenyakin, O., Stoica, S., Stone, S., Storaci, B., Straumann, U., Styles, N., Szczekowski, M., Szczypka, P., Szumlak, T., T'Jampens, S., Tarkovskiy, E., Teodorescu, E., Terrier, H., Teubert, F., Thomas, C., Thomas, E., van Tilburg, J., Tisserand, V., Tobin, M., Topp-Joergensen, S., Tran, M. T., Traynor, S., Trunk, U., Tsaregorodtsev, A., Tuning, N., Ukleja, A., Ullaland, O., Uwer, U., Vagnoni, V., Valenti, G., Van Lysebetten, A., Gomez, R. Vazquez, Regueiro, P. Vazquez, Vecchi, S., Velthuis, J. J., Veltri, M., Vervink, K., Viaud, B., Videau, I., Vieira, D., Vilasis-Cardona, X., Visniakov, J., Vollhardt, A., Volyanskyy, D., Voong, D., Vorobyev, A., Vorobyev, An., Voss, H., Wacker, K., Wandernoth, S., Wang, J., Ward, D. R., Webber, A. D., Websdale, D., Whitehead, M., Wiedner, D., Wiggers, L., Wilkinson, G., Williams, M. P., Williams, M., Wilson, F. F., Wishahi, J., Witek, M., Witzeling, W., Woodward, M. L., Wotton, S. A., Wyllie, K., Xie, Y., Xing, F., Yang, Z., Smit, G. Ybeles, Young, R., Yushchenko, O., Zeng, M., Zhang, L., Zhang, Y., Zhelezov, A., and Zverev, E.

Subjects
High Energy Physics - Experiment
Abstract

The production of K_short mesons in pp collisions at a centre-of-mass energy of 0.9 TeV is studied with the LHCb detector at the Large Hadron Collider. The luminosity of the analysed sample is determined using a novel technique, involving measurements of the beam currents, sizes and positions, and is found to be 6.8 +/- 1.0 microbarn^-1. The differential prompt K_short production cross-section is measured as a function of the K_short transverse momentum and rapidity in the region 0 < pT < 1.6 GeV/c and 2.5 < y < 4.0. The data are found to be in reasonable agreement with previous measurements and generator expectations., Comment: 6+18 pages, 6 figures, updated author list

Published
2010
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16. The D0 Silicon Microstrip Tracker

Author

Ahmed, S. N., Angstadt, R., Aoki, M., Åsman, B., Austin, S., Bagby, L., Barberis, E., Baringer, P., Bean, A., Bischoff, A., Blekman, F., Bolton, T. A., Boswell, C., Bowden, M., Browning, F., Buchholz, D., Burdin, S., Butler, D., Cease, H., Choi, S., Clark, A. R., Clutter, J., Cooper, A., Cooper, W. E., Corcoran, M., de Jong, S. J., Demarteau, M., Demina, R., Desai, S., Derylo, G., Ellison, J., Ermolov, P., Fagan, J., Fast, J., Filthaut, F., Foglesong, J., Fox, H., Galea, C. F., Gardner, J., Genik II, R. J., Gerber, C. E., Gershtein, Y., Gounder, K., Grinstein, S., Gu, W., Gutierrez, P., Haggerty, H., Hall, R. E., Hagopian, S., Hance, R., Harder, K., Heger, P., Heinson, A. P., Heintz, U., Hesketh, G., Hover, D., Howell, J., Hrycyk, M., Iashvili, I., Johnson, M., Jöstlein, H., Juste, A., Kahl, W., Kajfasz, E., Karmanov, D., Kesisoglou, S., Khanov, A., King, J., Kleinfelder, S., Kowalski, J., Krempetz, K., Kubantsev, M., Kulik, Y., Landsberg, G., Leflat, A., Lehner, F., Lipton, R., Mao, H. S., Martin, M., Mateski, J., Matulik, M., McKenna, M., Melnitchouk, A., Merkin, M., Mihalcea, D., Milgrome, O., Montgomery, H. E., Moua, S., Naumann, N. A., Nomerotski, A., Olis, D., O'Neil, D. C., Garzón, G. J. Otero y, Parua, N., Pawlak, J., Petteni, M., Quinn, B., Rapidis, P. A., Ratzmann, P., Rizatdinova, F., Roco, M., Rucinski, R., Rykalin, V., Schellman, H., Schmitt, W., Sellberg, G., Serritella, C., Shabalina, E., Sidwell, R. A., Simak, V., Smith, E., Squires, B., Stanton, N. R., Steinbrück, G., Strandberg, J., Strandberg, S., Strauss, M., Stredde, S., Toukhtarov, A., Tripathi, S. M., Trippe, T. G., Tsybychev, D., Utes, M., van Gemmeren, P., Vaz, M., Weber, M., Wijngaarden, D. A., Wish, J., Womersley, J., Yarema, R., Ye, Z., Zieminski, A., Zimmerman, T., and Zverev, E. G.

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

This paper describes the mechanical design, the readout chain, the production, testing and the installation of the Silicon Microstrip Tracker of the D0 experiment at the Fermilab Tevatron collider. In addition, description of the performance of the detector during the experiment data collection between 2001 and 2010 is provided.

Published
2010
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17. The Layer 0 Inner Silicon Detector of the D0 Experiment

Author

Angstadt, R., Bagby, L., Bean, A., Bolton, T., Buchholz, D., Butler, D., Christofek, L., Cooper, W. E., Daly, C. H., Demarteau, M., Foglesong, J., Gerber, C. E., Gonzalez, H., Green, J., Guldenman, H., Hanagaki, K., Herner, K., Howell, J., Hrycyk, M., Johnson, M., Kirby, M., Krempetz, K., Kuykendall, W., Lehner, F., Lipton, R., Lubatti, H. J., Markley, D., Matulik, M., McCarthy, R. L., Nomerotski, A., Olis, D., Orlov, Y., Garzon, G. J. Otero y, Roman, M., Rucinski, R., Schultz, K., Shabalina, E., Smith, R. P., Strom, D., Taylor, R. D., Tsybychev, D., Tuttle, M., Utes, M., Wang, J., Weber, M., Wesson, T., Youn, S. W., Zhou, T., and Zieminski, A.

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

This paper describes the design, fabrication, installation and performance of the new inner layer called Layer 0 (L0) that was inserted in the existing Run IIa Silicon Micro-Strip Tracker (SMT) of the D0 experiment at the Fermilab Tevatron collider. L0 provides tracking information from two layers of sensors, which are mounted with center lines at a radial distance of 16.1 mm and 17.6 mm respectively from the beam axis. The sensors and readout electronics are mounted on a specially designed and fabricated carbon fiber structure that includes cooling for sensor and readout electronics. The structure has a thin polyimide circuit bonded to it so that the circuit couples electrically to the carbon fiber allowing the support structure to be used both for detector grounding and a low impedance connection between the remotely mounted hybrids and the sensors., Comment: 28 pages, 9 figures

Published
2009
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20. Tevatron-for-LHC Report: Preparations for Discoveries

Author

Buescher, V., Carena, M., Dobrescu, B., Mrenna, S., Rainwater, D., Schmitt, M., Abdullin, ; S., Acosta, D., Asai, S., Atramentov, O., Baer, H., Balazs, C., Bartalini, P., Belyaev, A., Bernhard, R., Birkedal, A., Cavanaugh, R., Chen, M. -C., Clement, C., Datta, A., de Boer, Y., DeRoeck, A., Drozdetskiy, A., Gershtein, Y., Glenzinski, D., Group, C., Heinemeyer, S., Heldmann, M., Hubisz, J., Karlsson, M., Kong, K., Korytov, A., Kraml, S., Krupovnickas, T., Lafaye, R., Lane, K., Ledroit, F., Lehner, F., Lin, C. -J., Macesanu, C., Matchev, K., Menon, A., Milstead, D., Mitselmakher, G., Morel, J., Morrissey, D., O'Farrill, J., Pakhotin, Y., Perelstein, M., Plehn, T., Raklev, A., Scurlock, B., Sherstnev, A., Skands, P., Sullivan, Z., Tait, T., Tata, X., Torchiani, I., Trocme, B., Wagner, C., Weiglein, G., and Zerwas, D.

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

This is the "TeV4LHC" report of the "Physics Landscapes" Working Group, focused on facilitating the start-up of physics explorations at the LHC by using the experience gained at the Tevatron. We present experimental and theoretical results that can be employed to probe various scenarios for physics beyond the Standard Model., Comment: 222 pp., additional contribution added, typos/layout corrected

Published
2006

21. Averages of b-hadron Properties at the End of 2005

Author

Heavy Flavor Averaging Group, Barberio, E., Bizjak, I., Blyth, S., Cavoto, G., Chang, P., Dingfelder, J., Eidelman, S., Gershon, T., Godang, R., Harr, R., Hoecker, A., Iijima, T., Kowalewski, R., Lehner, F., Limosani, A., Lin, C. -J., Long, O., Luth, V., Morii, M., Prell, S., Schneider, O., Smith, J., Stocchi, A., Tosi, S., Trabelsi, K., Van Kooten, R., Voena, C., and Weiser, C.

Subjects
High Energy Physics - Experiment
Abstract

This article reports world averages for measurements on b-hadron properties obtained by the Heavy Flavor Averaging Group (HFAG) using the available results as of at the end of 2005. In the averaging, the input parameters used in the various analyses are adjusted (rescaled) to common values, and all known correlations are taken into account. The averages include lifetimes, neutral meson mixing parameters, parameters of semileptonic decays, branching fractions of B meson decays to final states with open charm, charmonium and no charm, and measurements related to CP asymmetries.

Published
2006

22. A Combination of CDF and DO Limits on the Branching Ratio of B_s(d) to mu+ mu- Decays

Author

Bernhard, R., Glenzinski, D., Herndon, M., Kamon, T., Krutelyov, V., Landsberg, G., Lehner, F., Lin, C. J., and Mrenna, S.

Subjects
High Energy Physics - Experiment
Abstract

We combine the results of CDF and DO searches for the rare decays B_s to mu+ mu- and B_d to mu+ mu-. The experiments use 364 pb-1 and 300 pb-1 of data respectively. The limits on the branching ratios are obtained by normalizing the estimated sensitivity to the decay B+ to J/psi K+, taking into account the fragmentation ratios f_u/f_s(d). The combined results exclude branching ratios of BR(B_s to mu+ mu-) > 1.5x10-7 and BR(B_d to mu+ mu- > 4.0x10-8 at 95% confidence level. These are the most stringent limits on these decays at the present time.

Published
2005

23. Tevatron-for-LHC Report: Preparations for Discoveries

Author

Buescher, V, Carena, M, Dobrescu, B, Mrenna, S, Rainwater, D, Schmitt, M, Abdullin, S, Acosta, D, Asai, S, Atramentov, O, Baer, H, Balazs, C, Bartalini, P, Belyaev, A, Bernhard, R, Birkedal, A, Cavanaugh, R, Chen, M-C, Clement, C, Datta, A, Boer, Y de, DeRoeck, A, Drozdetskiy, A, Gershtein, Y, Glenzinski, D, Group, C, Heinemeyer, S, Heldmann, M, Hubisz, J, Karlsson, M, Kong, K, Korytov, A, Kraml, S, Krupovnickas, T, Lafaye, R, Lane, K, Ledroit, F, Lehner, F, Lin, C-J, Macesanu, C, Matchev, K, Menon, A, Milstead, D, Mitselmakher, G, Morel, J, Morrissey, D, O'Farrill, J, Pakhotin, Y, Perelstein, M, Plehn, T, Raklev, A, Scurlock, B, Sherstnev, A, Skands, P, Sullivan, Z, Tait, T, Tata, X, Torchiani, I, Trocme, B, Wagner, C, Weiglein, G, and Zerwas, D

Subjects
hep-ph, hep-ex
Abstract

This is the "TeV4LHC" report of the "Physics Landscapes" Working Group,focused on facilitating the start-up of physics explorations at the LHC byusing the experience gained at the Tevatron. We present experimental andtheoretical results that can be employed to probe various scenarios for physicsbeyond the Standard Model.

Published
2006

24. Changing correlation structures of the Northern Hemisphere atmospheric circulation from 1000 to 2100 AD

Author

Raible, C. C., Lehner, F., González Rouco, J. Fidel, Fernández Donado, Laura, Raible, C. C., Lehner, F., González Rouco, J. Fidel, and Fernández Donado, Laura

Abstract

© Author(s) 2014. This work is distributed under the Creative Commons Attribution 3.0 License. This work is supported by the Sinergia project FUPSOL funded by the Swiss National Science Foundation. 20th Century Reanalysis data is provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA (from their website at http://www.esrl.noaa.gov/psd/). The CCSM3 simulations are performed on the super computing architecture of the Swiss National Supercomputing Centre (CSCS). LFD and JFGR were supported by CGL 2011-29677-602-02, CGL 2011-29672-602-01, and the FPU grant AP2009-4061., Atmospheric circulation modes are important concepts in understanding the variability of atmospheric dynamics. Assuming their spatial patterns to be fixed, such modes are often described by simple indices from rather short observational data sets. The increasing length of reanalysis products allows these concepts and assumptions to be scrutinised. Here we investigate the stability of spatial patterns of Northern Hemisphere teleconnections by using the Twentieth Century Reanalysis as well as several control and transient millennium-scale simulations with coupled models. The observed and simulated centre of action of the two major teleconnection patterns, the North Atlantic Oscillation (NAO) and to some extent the Pacific North American (PNA), are not stable in time. The currently observed dipole pattern of the NAO, its centre of action over Iceland and the Azores, split into a north-south dipole pattern in the western Atlantic with a wave train pattern in the eastern part, connecting the British Isles with West Greenland and the eastern Mediterranean during the period 1940-1969 AD. The PNA centres of action over Canada are shifted southwards and over Florida into the Gulf of Mexico during the period 1915-1944 AD. The analysis further shows that shifts in the centres of action of either teleconnection pattern are not related to changes in the external forcing applied in transient simulations of the last millennium. Such shifts in their centres of action are accompanied by changes in the relation of local precipitation and temperature with the overlying atmospheric mode. These findings further undermine the assumption of stationarity between local climate/proxy variability and large-scale dynamics inherent when using proxy-based reconstructions of atmospheric modes, and call for a more robust understanding of atmospheric variability on decadal timescales., project FUPSOL (Future and Past Solar Influence on the Terrestrial Climate), SNSF, Programa FPU (Formación de Profesorado Universitario), MECD, Swiss National Science Foundation (SNSF), Ministerio de Educación, Cultura y Deporte (MECD), España, Depto. de Física de la Tierra y Astrofísica, Fac. de Ciencias Físicas, TRUE, pub

Published
2023

25. Advancing research on compound weather and climate events via large ensemble model simulations

Author

Bevacqua, Emanuele, Suarez-Gutierrez, L., Jézéquel, A., Lehner, F., Vrac, M., Yiou, P., Zscheischler, Jakob, Bevacqua, Emanuele, Suarez-Gutierrez, L., Jézéquel, A., Lehner, F., Vrac, M., Yiou, P., and Zscheischler, Jakob

Abstract

Societally relevant weather impacts typically result from compound events, which are rare combinations of weather and climate drivers. Focussing on four event types arising from different combinations of climate variables across space and time, here we illustrate that robust analyses of compound events — such as frequency and uncertainty analysis under present-day and future conditions, event attribution to climate change, and exploration of low-probability-high-impact events — require data with very large sample size. In particular, the required sample is much larger than that needed for analyses of univariate extremes. We demonstrate that Single Model Initial-condition Large Ensemble (SMILE) simulations from multiple climate models, which provide hundreds to thousands of years of weather conditions, are crucial for advancing our assessments of compound events and constructing robust model projections. Combining SMILEs with an improved physical understanding of compound events will ultimately provide practitioners and stakeholders with the best available information on climate risks.

Published
2023

28. On fixity of arc-transitive graphs

Author

Lehner, F, Potocnik, P, Spiga, P, Lehner F., Potocnik P., Spiga P., Lehner, F, Potocnik, P, Spiga, P, Lehner F., Potocnik P., and Spiga P.

Abstract

The relative fixity of a permutation group is the maximum proportion of the points fixed by a non-trivial element of the group, and the relative fixity of a graph is the relative fixity of its automorphism group, viewed as a permutation group on the vertex-set of the graph. We prove in this paper that the relative fixity of connected 2-arc-transitive graphs of a fixed valence tends to 0 as the number of vertices grows to infinity. We prove the same result for the class of arc-transitive graphs of a fixed prime valence, and more generally, for any class of arc-transitive locally-L graphs, where L is a fixed quasiprimitive graph-restrictive permutation group.

Published
2021

30. 275 TRANSURETHRAL INJECTION OF AUTOLOGOUS MUSCLE PRECURSOR CELLS FOR THE TREATMENT OF FEMALE STRESS URINARY INCONTINENCE – A PROSPECTIVE AND RANDOMIZED PHASE I CLINICAL TRIAL

Author

Schmid, F, primary, Prange, J, additional, Kozomara, M, additional, Betschart, C, additional, Steinke, N, additional, Sousa, R, additional, Hunziker, M, additional, Lehner, F, additional, Veit, M, additional, Landsmann, A, additional, Boss, A, additional, Hötker, A, additional, Mohr-Haralampieva, D, additional, and Eberli, D, additional

Published
2022
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33. Precipitation trends determine future occurrences of compound hot–dry events

Author

Bevacqua, Emanuele, Zappa, G., Lehner, F., Zscheischler, Jakob, Bevacqua, Emanuele, Zappa, G., Lehner, F., and Zscheischler, Jakob

Abstract

Compound hot–dry events—co-occurring hot and dry extremes—frequently cause damages to human and natural systems, often exceeding separate impacts from heatwaves and droughts. Strong increases in the occurrence of these events are projected with warming, but associated uncertainties remain large and poorly understood. Here, using climate model large ensembles, we show that mean precipitation trends exclusively modulate the future occurrence of compound hot–dry events over land. This occurs because local warming will be large enough that future droughts will always coincide with at least moderately hot extremes, even in a 2 °C warmer world. By contrast, precipitation trends are often weak and equivocal in sign, depending on the model, region and internal climate variability. Therefore, constraining regional precipitation trends will also constrain future compound hot–dry events. These results help to assess future frequencies of other compound extremes characterized by strongly different trends in the drivers.

Published
2022

36. A Randomized, Controlled Study to Assess the Conversion From Calcineurin-Inhibitors to Everolimus After Liver Transplantation—PROTECT

Author

Fischer, L., Klempnauer, J., Beckebaum, S., Metselaar, H.J., Neuhaus, P., Schemmer, P., Settmacher, U., Heyne, N., Clavien, P-A., Muehlbacher, F., Morard, I., Wolters, H., Vogel, W., Becker, T., Sterneck, M., Lehner, F., Klein, C., Kazemier, G., Pascher, A., Schmidt, J., Rauchfuss, F., Schnitzbauer, A., Nadalin, S., Hack, M., Ladenburger, S., and Schlitt, H.J.

Published
2012
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38. HESEB: The Helmholtz state-of-the-art Soft-X-Ray Undulator beamline at SESAME

Author

Abbadi, A., Attal, M., Bahrdt, J., Drube, W., Eberhardt, W., Martin Esser, F., Follath, R., Froideval, A., Fatih Genisel, M., Groetsch, D., Rahman Hasoneh, A., Huck, M., Huttel, E., Kanngie er, B., Knaack, S., Krueger, O., Lausi, A., Lehner, F., Lörgen, M., Meseck, A., Momani, Y., Al Najdawi, M., Natour, G., Paolucci, G., Rial, E., Roschka, M., Scheer, M., Schramm, B., Schuppler, S., Shehab, M., Siewert, F., Tiemann, C., and Weissig, A.

Subjects
History, Physics, ddc:530, HESEB, soft x ray undulator, beamline, construction, installation, Computer Science Applications, Education
Abstract

SESAME and a consortium of five Helmholtz Centers are designing and installing a state-of-the-art soft X-Ray undulator beamline at the SESAME light source in Amman, Jordan. Funding is provided by the Helmholtz Association over a four year project cycle that started in January 2019. This is an interim report covering the first 36 months of the project where the construction and installation has been almost completed and commissioning and characterization of the beamline is about to start. Additionally, seminars, workshops, and a training program are part of the project aimed at establishing a broad user community.

Published
2022

40. The D0 Silicon Microstrip Tracker

Author

Ahmed, S.N., Angstadt, R., Aoki, M., Åsman, B., Austin, S., Bagby, L., Barberis, E., Baringer, P., Bean, A., Bischoff, A., Blekman, F., Bolton, T.A., Boswell, C., Bowden, M., Browning, F., Buchholz, D., Burdin, S., Butler, D., Cease, H., Choi, S., Clark, A.R., Clutter, J., Cooper, A., Cooper, W.E., Corcoran, M., de Jong, S.J., Demarteau, M., Demina, R., Desai, S., Derylo, G., Ellison, J., Ermolov, P., Fagan, J., Fast, J., Filthaut, F., Foglesong, J., Fox, H., Galea, C.F., Gardner, J., Genik, R.J., II, Gerber, C.E., Gershtein, Y., Gounder, K., Grinstein, S., Gu, W., Gutierrez, P., Haggerty, H., Hall, R.E., Hagopian, S., Hance, R., Harder, K., Heger, P., Heinson, A.P., Heintz, U., Hesketh, G., Hover, D., Howell, J., Hrycyk, M., Iashvili, I., Johnson, M., Jöstlein, H., Juste, A., Kahl, W., Kajfasz, E., Karmanov, D., Kesisoglou, S., Khanov, A., King, J., Kleinfelder, S., Kowalski, J., Krempetz, K., Kubantsev, M., Kulik, Y., Landsberg, G., Leflat, A., Lehner, F., Lipton, R., Mao, H.S., Martin, M., Mateski, J., Matulik, M., McKenna, M., Melnitchouk, A., Merkin, M., Mihalcea, D., Milgrome, O., Montgomery, H.E., Moua, S., Naumann, N.A., Nomerotski, A., Olis, D., O’Neil, D.C., Otero y Garzón, G.J., Parua, N., Pawlak, J., Petteni, M., Quinn, B., Rapidis, P.A., Ratzmann, P., Rizatdinova, F., Roco, M., Rucinski, R., Rykalin, V., Schellman, H., Schmitt, W., Sellberg, G., Serritella, C., Shabalina, E., Sidwell, R.A., Simak, V., Smith, E., Squires, B., Stanton, N.R., Steinbrück, G., Strandberg, J., Strandberg, S., Strauss, M., Stredde, H., Toukhtarov, A., Tripathi, S.M., Trippe, T.G., Tsybychev, D., Utes, M., van Gemmeren, P., Vaz, M., Weber, M., Wijngaarden, D.A., Wish, J., Womersley, J., Yarema, R., Ye, Z., Zieminski, A., Zimmerman, T., and Zverev, E.G.

Published
2011
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43. A Model of Secondary Hydrocarbon Migration As a Buoyancy-Driven Separate Phase Flow Un modèle de migration secondaire des hydrocarbures considéré comme un écoulement en phases séparées régi par la poussée d'Archimède

Author

Lehner F. K., Marsal D., Hermans L., and Van Kuyk A.

Subjects
Chemical technology, TP1-1185, Energy industries. Energy policy. Fuel trade, HD9502-9502.5
Abstract

A mathematical model of secondary migration is described which permits the prediction of hydrocarbon migration and accumulation patterns in a sedimentary basin, if source rock expulsion rates and geometrical and hydraulic properties of major carrier systems are known through geological time. In this model, secondary migration is treated as buoyancy-driven, segregated flow of hydrocarbons in hydrostatic aquifers. Lateral, updip migration is conceived as a Boussinesq-type, free-surface flow, with source and sink terms representing supply from source rocks and leakage through cap rocks and faults. This permits a two-dimensional, map-view mathematical description of a three-dimensional, time-dependent secondary migration system. A nine-point finite difference approximation has been developed to minimize numerical dispersion, and upstream-weighting is used to obtain stable solutions. Example computations for simple, single carrier bed structures are presented. L'article décrit un modèle mathématique de migration secondaire prédisant la migration des hydrocarbures et leur accumulation dans un bassin sédimentaire, lorsque les taux d'expulsion des roches mères et les propriétés géométriques et hydrauliques des principaux systèmes de drainage sont connus à l'échelle du temps géologique. Dans ce modèle, la migration secondaire est traitée comme un écoulement des hydrocarbures en phase séparée, contrôlé par la poussée d'Archimède, dans des aquifères hydrostatiques. La migration latérale est considérée comme un écoulement de type Boussinesq, à surface libre, avec des termes sources et puits représentant les apports venant des roches mères et les fuites à travers les couvertures et les failles. Ceci permet une description mathématique bidimensionnelle cartographiable d'un système de migration secondaire tridimensionnel et dépendant du temps. On utilise une approximation type différences finies à neuf points pour minimiser la dispersion numérique et une pondération amont pour obtenir des solutions stables. Des exemples de calcul pour des structures simples avec une seule couche perméable sont présentés.

Published
2006
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