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Measurement of (B)over-bar(0)-> D-(*()0)(K)over-bar(()*()0) branching fractions
BABAR Collaboration
2006
发表期刊PHYSICAL REVIEW D
卷号74期号:3页码:31101
通讯作者Aubert, B (reprint author), Phys Particules Lab, F-74941 Annecy Le Vieux, France.
摘要We present a study of the decays (B) over bar (0)-> D-(*)0(K) over bar ((*)0) using a sample of 226x10(6) Upsilon(4S)-> B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We report evidence for the decay of B-0 and (B) over bar (0) mesons to the (DKS0)-K-*0 final state with an average branching fraction B(B-0 ->(DK0)-K-*0)equivalent to(B((B) over bar (0)-> D-*0(K) over bar (0))+B(B-0 ->(DK0)-K-*0))/2=(3.6 +/- 1.2 +/- 0.3)x10(-5). Similarly, we measure B(B-0 ->(DK0)-K-0)equivalent to(B((B) over bar (0)-> D-0(K) over bar (0))+B(B-0 ->(DK0)-K-0))/2=(5.3 +/- 0.7 +/- 0.3)x10(-5) for the (DKS0)-K-0 final state. We measure B((K) over bar (0)-> D-0(K) over bar (*0))=(4.0 +/- 0.7 +/- 0.3)x10(-5) and set a 90% confidence level upper limit B((B) over bar (0)->(D) over bar (0)(K) over bar (*0))< 1.1x10(-5). We determine the upper limit for the decay amplitude ratio vertical bar A((B) over bar (0)->(D) over bar (0)(K) over bar (*0))/A((B) over bar (0)-> D-0(K) over bar (*0))vertical bar to be less than 0.4 at the 90% confidence level.
文章类型Article
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.74.031101
收录类别SCI
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000240239300001
引用统计
被引频次:15[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/311005/227884
专题实验物理中心
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BABAR Collaboration. Measurement of (B)over-bar(0)-> D-(*()0)(K)over-bar(()*()0) branching fractions[J]. PHYSICAL REVIEW D,2006,74(3):31101.
APA BABAR Collaboration.(2006).Measurement of (B)over-bar(0)-> D-(*()0)(K)over-bar(()*()0) branching fractions.PHYSICAL REVIEW D,74(3),31101.
MLA BABAR Collaboration."Measurement of (B)over-bar(0)-> D-(*()0)(K)over-bar(()*()0) branching fractions".PHYSICAL REVIEW D 74.3(2006):31101.
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