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Measurement of the lifetime of the B_c meson in the semileptonic decay channel
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SYSNO ASEP 0334867 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Measurement of the lifetime of the B_c meson in the semileptonic decay channel Title Měření doby života Bc(+/-) v semileptonických rozpadových kanálech Author(s) Abazov, V. M. (RU)
Abbott, B. (US)
Abolins, M. (US)
Kupčo, Alexander (FZU-D) RID, ORCID
Lokajíček, Miloš (FZU-D) RID, ORCIDNumber of authors 528 Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 102, č. 9 (2009), 092001/1-092001/7Number of pages 7 s. Language eng - English Country US - United States Keywords D0 ; detector ; B_c meson Subject RIV BF - Elementary Particles and High Energy Physics R&D Projects LC527 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LA08047 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100502 - FZU-D (2005-2011) UT WOS 000263911900014 DOI 10.1103/PhysRevLett.102.092001 Annotation Using approximately 1.3 fb-1 of data collected by the D0 detector between 2002 and 2006, we measure the lifetime of the B_c meson in the B_c -> J/psi mu nu X final state. A simultaneous unbinned likelihood fit to the J//psi+mu invariant mass and lifetime distributions yields a signal of 881 +/- 80 (stat) candidates and a lifetime measurement of /tau(B_c) = 0.448 +0.038 -0.036 (stat) +/- 0.032 (syst) ps. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
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