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Measurement of the lifetime difference in the B-s(0) system
DØ Collaboration
2005
发表期刊PHYSICAL REVIEW LETTERS
卷号95期号:17页码:171801
通讯作者Abazov, VM (reprint author), Joint Nucl Res Inst, Dubna, Russia.
摘要We present a study of the decay B-s(0)-> J/psi phi. We obtain the CP-odd fraction in the final state at time zero R-perpendicular to = 0.16 +/- 0.10 (stat) +/- 0.02(syst), the average lifetime of the (B-s(0), (B) over bar (0)(s)) system, (tau) over bar (B-s(0)) = 1.39(-0.16)(+0.13)(stat)(-0.02)(+0.01)(syst) ps, and the relative width difference between the heavy and light mass eigen-states, Delta Gamma/(Gamma) over bar = (Gamma(L) - Gamma(H))/(Gamma) over bar = 0.24(-0.38)(+0.28)(stat)(-0.04)(+0.03)(syst). With the additional constraint from the world average of the B-s(0) lifetime measurements using semileptonic decays, we find (tau) over bar (B-s(0)) = 1.39 +/- 0.06 ps and Delta Gamma/(Gamma) over bar = 0.25(-0.15)(+0.14). For the ratio of the B-s(0) and B-0 lifetimes we obtain (tau) over bar (B-s(0))/tau(B-s(0)) = 0.91 +/- 0.09(stat) +/- 0.003(syst).
文章类型Article
学科领域Physics
DOI10.1103/PhysRevLett.95.171801
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000232724400020
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227974
专题实验物理中心
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DØ Collaboration. Measurement of the lifetime difference in the B-s(0) system[J]. PHYSICAL REVIEW LETTERS,2005,95(17):171801.
APA DØ Collaboration.(2005).Measurement of the lifetime difference in the B-s(0) system.PHYSICAL REVIEW LETTERS,95(17),171801.
MLA DØ Collaboration."Measurement of the lifetime difference in the B-s(0) system".PHYSICAL REVIEW LETTERS 95.17(2005):171801.
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