Search for B c + decays to two charm mesons

Search for B c + decays to two charm mesons
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搜索 B c 衰变为两个魅力介子

DOI:
10.1016/j.nuclphysb.2018.03.015
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发表时间:
2018
期刊:
影响因子:
2.8
通讯作者:
Aaij R
Aaij R
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Aaij R

文献摘要

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首次利用LHCb实验在质量中心能量为7和8 TeV的pp碰撞中收集的积分光度为3.0 fb− 1的数据,对Bc+介子衰变为两个粲介子的过程进行了研究。所考虑的衰变是Bc+→ D(s)(ε)+ D ε(ε)0和Bc+→ D(s)(ε)+ D(ε)0,它们被归一化为高产额B+→ D(s)+ D ε 0衰变。没有发现信号的证据,并对12种Bc+衰变模式设定了限制。
A search for decays of Bc+ mesons to two charm mesons is performed for the first time using data corresponding to an integrated luminosity of 3.0 fb− 1, collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV. The decays considered are Bc+→ D (s)(⁎)+ D‾(⁎) 0 and Bc+→ D (s)(⁎)+ D (⁎) 0, which are normalised to high-yield B+→ D (s)+ D‾ 0 decays. No evidence for a signal is found and limits are set on twelve Bc+ decay modes.