arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1407.7244hep-ex
收藏

B{+-,0} --> J/K+ K- K{+-,0}的研究和在BABAR上搜索B0 --> J/

Study of B{+-,0} --> J/ψ K+ K- K{+-,0} and search for B0 --> J/ψ ϕ at BABAR

The BABAR Collaboration

摘要:

利用在PEP-Ⅱ e+e-非对称能量对撞机上BABAR探测器的Upperion(4S)共振条件下收集的4.69亿个BBbar事例,研究了B介子稀有衰变B{+-,0} --> J/J_K^+ K^- K{+-,0},B{+-,0} --> J/J_K ^{+-,0},并寻找了B_0--> J/J_K。我们提出了新的测量的分支分数和J/pk10的质量分布的研究,在寻找新的charmonium类状态。此外,我们寻找衰变B 0--> J/π,没有发现信号的证据。

英文摘要:

We study the rare B meson decays B{+-,0} --> J/ψ K^+ K^- K{+-,0}, B{+-,0} --> J/ψ ϕ K{+-,0}, and search for B0 --> J/ψ ϕ, using 469 million BBbar events collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II e+e- asymmetric-energy collider. We present new measurements of branching fractions and a study of the J/ψϕmass distribution in search of new charmonium-like states. In addition, we search for the decay B0 --> J/ψ ϕ, and find no evidence of a signal.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑