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Study of the decay (B)over-bar(0)-> D*+omega pi(-)
BABAR Collaboration
2006
发表期刊PHYSICAL REVIEW D
卷号74期号:1页码:12001
通讯作者Aubert, B (reprint author), Phys Particules Lab, F-79471 Annecy Le Vieux, France.
文章类型Article
摘要We report on a study of the decay (B) over bar (0)-> D*+omega pi(-) with the BABAR detector at the PEP-II B-factory at the Stanford Linear Accelerator Center. Based on a sample of 232x10(6) B (B) over bar decays, we measure the branching fraction B((B) over bar (0)-> D*+omega pi(-))=(2.88 +/- 0.21(stat.)+/- 0.31(syst.))x10(-3). We study the invariant mass spectrum of the omega pi(-) system in this decay. This spectrum is in good agreement with expectations based on factorization and the measured spectrum in tau(-)->omega pi(-)nu(tau). We also measure the polarization of the D*+ as a function of the omega pi(-) mass. In the mass region 1.1 to 1.9 GeV we measure the fraction of longitudinal polarization of the D*+ to be Gamma(L)/Gamma=0.654 +/- 0.042(stat.)+/- 0.016(syst.). This is in agreement with the expectations from heavy-quark effective theory and factorization assuming that the decay proceeds as (B) over bar (0)-> D*+rho(1450)(-), rho(1450)(-)->omega pi(-).
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.74.012001
收录类别SCI
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000239511800011
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被引频次:12[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/311005/227876
专题实验物理中心
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BABAR Collaboration. Study of the decay (B)over-bar(0)-> D*+omega pi(-)[J]. PHYSICAL REVIEW D,2006,74(1):12001.
APA BABAR Collaboration.(2006).Study of the decay (B)over-bar(0)-> D*+omega pi(-).PHYSICAL REVIEW D,74(1),12001.
MLA BABAR Collaboration."Study of the decay (B)over-bar(0)-> D*+omega pi(-)".PHYSICAL REVIEW D 74.1(2006):12001.
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