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Search for the decay tau(-)-> 3 pi(-)2 pi(+)2 pi(0)nu(tau)
BaBar Collaboration
2006
发表期刊PHYSICAL REVIEW D
卷号73期号:11
通讯作者Aubert, B (reprint author), Phys Particules Lab, F-74941 Annecy Le Vieux, France.
摘要A search for the decay of the tau lepton to five charged and two neutral pions is performed using data collected by the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider. The analysis uses 232 fb(-1) of data at center-of-mass energies on or near the Upsilon(4S) resonance. We observe 10 events with an expected background of 6.5(-1.4)(+2.0) events. In the absence of a signal, we set the limit on the branching ratio B(tau(-)-> 3 pi(-)2 pi(+)2 pi(0)nu(tau))< 3.4x10(-6) at the 90% confidence level. This is a significant improvement over the previously established limit. In addition, we search for the decay mode tau(-)-> 2 omega pi(-)nu(tau). We observe 1 event with an expected background of 0.4(-0.4)(+1.0) events and calculate the upper limit B(tau(-)-> 2 omega pi(-)nu(tau))< 5.4x10(-7) at the 90% confidence level. This is the first upper limit for this mode.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.73.112003
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000238698300012
引用统计
被引频次:5[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/311005/212681
专题实验物理中心
作者单位中国科学院高能物理研究所
推荐引用方式
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BaBar Collaboration. Search for the decay tau(-)-> 3 pi(-)2 pi(+)2 pi(0)nu(tau)[J]. PHYSICAL REVIEW D,2006,73(11).
APA BaBar Collaboration.(2006).Search for the decay tau(-)-> 3 pi(-)2 pi(+)2 pi(0)nu(tau).PHYSICAL REVIEW D,73(11).
MLA BaBar Collaboration."Search for the decay tau(-)-> 3 pi(-)2 pi(+)2 pi(0)nu(tau)".PHYSICAL REVIEW D 73.11(2006).
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