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LIMIT ON B-S(0) OSCILLATION USING A JET CHARGE METHOD
ALEPH Collaboration
1995
发表期刊PHYSICS LETTERS B
卷号356期号:2-3页码:#REF!
通讯作者BUSKULIC, D (reprint author), INST NATL PHYS NUCL & PHYS PARTICULES, CNRS, PHYS PARTICULES LAB, F-74019 ANNECY LE VIEUX, FRANCE.
文章类型Article
摘要A lower limit is set on the B-s(0) meson oscillation parameter Delta m(s) using data collected from 1991 to 1994 by the ALEPH detector. Events with a high transverse momentum lepton and a reconstructed secondary vertex are used. The high transverse momentum leptons are produced mainly by b hadron decays, and the sign of the lepton indicates the particle/antiparticle final state in decays of neutral B mesons. The initial state is determined by a jet charge technique using both sides of the event. A maximum likelihood method is used to set a lower limit of Delta m(s). The 95% confidence level lower limit on Delta m(s) ranges between 5.2 and 6.5(h/c(2)) ps(-1) when the fraction of b quarks from Z(0) decays that form. B-s(0) mesons is varied from 8% to 16%. Assuming that the B-s(0) fraction is 12%, the lower limit would be Delta m(s) > 6.1 (h/c(2)) ps(-1) at 95% confidence level. For x(s) = Delta m(s) tau B-s, this limit also gives x(s) > 8.8 using the B-s(0) lifetime of tau(Bs) = 1.55 +/- 0.11 ps and shifting the central value of tau(Bs) down by 1 sigma.
学科领域Physics
DOI10.1016/0370-2693(95)00823-4
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:A1995RP76800041
引用统计
被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227629
专题实验物理中心
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ALEPH Collaboration. LIMIT ON B-S(0) OSCILLATION USING A JET CHARGE METHOD[J]. PHYSICS LETTERS B,1995,356(2-3):#REF!.
APA ALEPH Collaboration.(1995).LIMIT ON B-S(0) OSCILLATION USING A JET CHARGE METHOD.PHYSICS LETTERS B,356(2-3),#REF!.
MLA ALEPH Collaboration."LIMIT ON B-S(0) OSCILLATION USING A JET CHARGE METHOD".PHYSICS LETTERS B 356.2-3(1995):#REF!.
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