Measurement Of The Mass And Lifetime Of The Omega(-)(B) Baryon
R. Aaij, G. Ciezarek,P. Collins,Gianmaria Collazuol, S. Roiser,W. Qian,A. Vollhardt, B. Storaci,Li Hongming,Danielle Martins Tostes,Daniel Patrick O'Hanlon,Marcel Merk,Christopher Jones,Domenico Galli, Marie-Noelle Minard, P. J. Garsed,Pavel Krokovny,Marco Corvo, I. Polyakov,L. Kravchuk, J. Wishahi,A. Vallier,V. Chobanova,T. Kirn, M. Palutan,A. Ustyuzhanin,S. Bachmann, J. Benton,D. Gascon,Timothy Evans,M. Kelsey,H. Luo, N. Harnew, M. Chrzaszcz,J. Panman, Kevin Dungs, O. Maev, G. Haefeli,S. Stone, J. Lefrançois, Hannah Mary Evans, S. Barsuk, F. Maciuc, A. Piucci, E. Tournefier, D. Pinci,Miriam Lucio Martinez,M. Baalouch,Angelo Di Canto, G. Graziani,O. G. Girard,C. Baesso, R. Waldi, N. Nikitin,Andreas Jaeger,Oliver Grünberg,Daniel Vieira, Sascha Stahl,R. Fay,E. Smith,M. Needham,B. Schmidt, B. Maurin,C. Pappenheimer,Alexander Bondar, I. T. Smith,Monica Pepe Altarelli, O. Stenyakin,Cameron Thomas Dean, M. Szczekowski, L. Eklund,Josue Molina Rodriguez,Alvaro Gomes,M. Kenzie,M. Fiore,Pablo Rodriguez Perez, A. Borgheresi,A. Carbone, O. Deschamps,A. D. Nguyen,B. Viaud,Martinus van Beuzekom, A. Merli, M. Fiorini, P. Spradlin,L. An,V. Müller,A. Pearce, R. Oldeman,A. Rogozhnikov, S. Karodia,Shanzhen Chen,M. Whitehead,Juan Jose Saborido Silva,C. Hombach, M. D. Sokoloff,Gerhard Raven, F. Lionetto, M. Petruzzo,Luiz Gustavo Silva de Oliveira,N. Serra,Jaap Velthuis, G. Tellarini,Philippe Charpentier,K. Kreplin, F. Stagni, A. Hicheur,Marc Grabalosa Gándara,M. Kecke,Eric van Herwijnen, L. Anderlini,Giovanni Punzi,Roger Forty,Y. Xie,L. Sestini,L. Dufour, X. Vilasis-Cardona,David Ward,Bo Liu,N. Hussain, B. Sciascia, M. Idzik,S. Nieswand,G. Wilkinson,Yuanning Gao, P. Billoir, C. Nguyen-Mau,M. Karbach,Jeroen van Leerdam, S. Tolk,J. Müller,Brian Hamilton, T. Gys,S. Ali, A. A. Alves,M. Martinelli, E. Grauges,S. Richards,J. P. Lees,Bruno Osorio Rodrigues,M. Borsato,E. Gersabeck, F. Muheim,Maria Vieites Diaz,I. Shapoval,I. A. Monroy, E. Santovetti, M. Vesterinen, U. Marconi,T. 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Carson,Juan Martin Otalora Goicochea, A. Sciubba, Mike Williams, M. Kreps,Alexey Vorobyev,Georgy Alkhazov, Brian Meadows, S. Cadeddu,Hans Dijkstra,C. Wallace, N. Neufeld,O. Francisco,M. Hoballah,Dominik Müller,M. Hushchyn,Jose Lopes, K. Wyllie,D. Voong,H. Schindler,Paula Alvarez Cartelle,T. Humair,Adam Benjamin Morris,Z. Xu,A. Badalov, N. Sagidova,B. Langhans,Vincenzo Vagnoni, J. Buytaert,Patrizia De Simone,Jacco de Vries, S. Topp-Joergensen,S. Bifani, A. Papanestis,D. Lucchesi, S. Coquereau,B. Popovici,M. Patel, A. Bursche,K. Klimaszewski, R. Calabrese,Peter Michael Manning,V. Cogoni,W. Kanso,Xabier Cid Vidal,T. Likhomanenko,R. Lefèvre, D. Savrina,T. Head, M. Mussini,Alessandro Bertolin, F. Betti, E. Aslanides,Alvaro Dosil Suárez,Peter Clarke, V. Battista, G. Chatzikonstantinidis, D. Golubkov,Paul Soler, L. Shekhtman,Cibran Santamarina Rios, F. Dettori,E. Furfaro, R. Schwemmer,S. Benson, S. Esen,T. Bird,P. Griffith,G. D. Patel,A. Grecu,V. Volkov,S. Klaver,Pascal Perret,Osvaldo Aquines Gutierrez, S. Gallorini, P. Ilten,Miriam Calvo Gomez, A. Oblakowska-Mucha,Nicola Neri,V. Romanovsky, G. Passaleva,Stefano Zucchelli,S. Gambetta,Luis Alberto Granado Cardoso,Renaud Le Gac,S. C. Haines,Zhenwei Yang,D. Tonelli,Victor Fernandez Albor, A. Leflat,Marianna Fontana,W. Bonivento, F. F. Wilson, P. Gandini, G. Martellotti, L. Zhong, E. Ben-Haim,Yiming Li,Pieter David, A. Sergi,Slavomira Stefkova,A. Golutvin,F. Alessio,T. Blake, C. Khurewathanakul,Thomas Latham,J. McCarthy, R. Niet, A. Comerma-Montells, C. Satriano,Stephen Wotton,C. Voß,D. Ferguson, M. Kucharczyk, H. V. Cliff, A. Massafferri,Bruno Souza De Paula, C. Haen, M. Morandin, K. Hennessy,P. Owen, L. Gavardi,R. Currie, G. Cavallero,R. B. Appleby,M. Demmer, Mohamad Kozeiha, G. Mancinelli,Jessica Prisciandaro, C. Prouve,D. A. Milanes, G. Bencivenni, S. Stracka,M. Sirendi, A. Zhelezov, J. Harrison,J. Fu,A. Zhokhov,M. Boubdir,L. Henry,E. Michielin, P. Durante,Alberto dos Reis, L. 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Bediaga, G. Penso, V. Tisserand,C. Lazzeroni,M. Pikies, W. Barter, S. Farry, E. Bowen, A. Trisovic,Brais Sanmartin Sedes,M. Borisyak,S. Malde,X. Han, Y. Amhis, V. Batozskaya,M. Meissner,Timothy Gershon, Luciano Pappalardo,T. Nakada,A. Pistone,F. Archilli,Laure Marie Massacrier,Roger Barlow, F. Teubert, F. Machefert, I. Belyaev, Philippe d'Argent,C. Barschel,P. Campana,L. Cojocariu,S. Reichert, A. Petrolini, G. Dujany,Bernardo Adeva,Edgar Lemos Cid, T. Tekampe,C. Bozzi, T. Hadavizadeh,K. Fohl,M. Adinolfi, A. Mazurov, V. Renaudin,E. Price, N. Skidmore, I. Nasteva,Pawel Jalocha, R. Mountain, C. Parkes,S. Vecchi,F. Redi,J. Smith, E. Polycarpo, Lorenzo Cassina, A. Birnkraut, E. Luppi,Alberto Lusiani, V. Coco,Yangheng Zheng, J. Dalseno, A. Semennikov,E. Buchanan,M. Pappagallo,Michael Joseph Morello, J. Marks, M. Karacson, T. Schmelzer, C. Matteuzzi,Pierre Henrard,Marc-Olivier Bettler,Albert Puig Navarro, Yury Guz,Daniel Hugo Campora Perez, W. Hulsbergen,Maria Aranzazu Oyanguren, R. Jacobsson, S. Easo,M. Gandelman, K. Trabelsi, T. Shears,Mark Smith,S. Ricciardi,U. Egede, D. Decamp,Greig Cowan, P. Seyfert,S. Braun, M. Alexander,M. Charles,Matthew Williams,D. Lambert,Scott Ely, B. Khanji,Valdir Salustino Guimaraes,Fernando Ferreira Rodrigues, A. Shires,A. Nandi,E. Rodrigues, Y. Shcheglov, A. Poluektov, B. Saitta,Maximilien Chefdeville,Luigi Del Buono, L. Garrido,Elena Dall'Occo,T. Poikela, P. Robbe,G. Corti,M. Frosini, Ibrahim El Rifai,J. Albrecht, D. Derkach,M. John,Manuel Schiller,F. Blanc, B. Rachwal, D. Fazzini,O. Lupton, G. Manca, Dean Charles Forshaw, John William Ronayne,P. Marino, S. Perazzini, A. Ukleja,Carlos Abellán Beteta,C. Vacca, K. Rinnert, C. D'Ambrosio,Jordi Garra Tico, B. Leverington, M. McCann,K. Swientek,K. Müller,Miguel Ramos Pernas, N. Tuning, Sebastiana Gianì, E. Gushchin,S. F. Cheung, T. Lesiak,I. Komarov,S. Amato,D. Melnychuk, R. Cardinale,John Walsh, Daniel Martin Saunders,S. T. Harnew,Leandro De Paula, A. Crocombe,R. F. Koopman, V. 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Rademacker,M. Traill,V. V. Gligorov,M. Stahl, B. Couturier,S. Valat,Jairo Alexis Rodriguez Lopez,W. Krzemien,W. Parker, R. Bernet, K. Wraight,Fernando Martinez Vidal, Christophe Cauet,C. Patrignani,M. Zangoli,S. Stoica,M. Rama, S. Hall, Vladimir Obraztsov, S. Kandybei,Nigel Watson,Jussara De Miranda, M. Schmelling, B. Spaan,Jeroen van Tilburg,Ricardo Graciani Diaz, P. Tsopelas,A. Novoselov,H. Snoek,Andrey Tayduganov,Kristof De Bruyn,U. Straumann,Andrew Cook,K. Maguire, L. Grillo, M. Rihl, R. Dzhelyadin, L. Giubega,Lucia Castillo Garcia, A. Mathad, S. Hansmann-Menzemer,P. Ghez, M. Kolpin,Minh Tâm Tran, Mark Richard James Williams, J. Brodzicka, Ian Kenyon,C. Potterat,F. Fleuret, J. Wicht,P. Morawski,M. Deckenhoff,B. G. Siddi, E. Thomas,Beat Jost,O. Leroy,Liang Sun, F. Polci,E. Graverini,Marcello Rotondo,T. Fiutowski,D. Hill, R. Matev,Carlos Sanchez Mayordomo, D. Lacarrere,V. Gibson,Paolo Carniti,R. Nandakumar,Rafael Silva Coutinho
PHYSICAL REVIEW D（2016）
引用 18|浏览20
摘要
A proton-proton collision data sample, corresponding to an integrated luminosity of 3 fb(-1) collected by LHCb at root s = 7 and 8 TeV, is used to reconstruct 63 +/- 9 Omega(-)(b) -> Omega(0)(c)pi(-), Omega(0)(c) -> pK(-)K(-)pi(+) decays. Using the Xi(-)(b) ->Xi(0)(c)pi(-), Xi(0)(c) -> pK(-)K(-)pi(+) decay mode for calibration, the lifetime ratio and the absolute lifetime of the Omega(-)(b) baryon are measured to be tau(Omega b-)/tau(Xi b-) = 1.11 +/- 0.16 +/- 0.03, tau(Omega b-) = 1.78 +/- 0.26 +/- 0.05 +/- 0.06 ps, where the uncertainties are statistical, systematic and from the calibration mode (for tau(Omega b-) only). A measurement is also made of the mass difference, m(Omega b-) - m(Xi b-), and the corresponding Omega(-)(b) mass, which yields m(Omega b-) - m(Xi b-) = 247.4 +/- 3.2 +/- 0.5 MeV/c(2), m(Omega b-) = 6045.1 +/- 3.2 +/- 0.5 +/- 0.6 MeV/c(2). These results are consistent with previous measurements.
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