arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1606.08402hep-phhep-ex
收藏

在LHC的$B_c \to B_s$中轻子级联的作用

The role of leptonic cascades in $B_c \to B_s$ at the LHC

Arghya Choudhury, Anirban Kundu, Biswarup Mukhopadhyaya

摘要:

研究了利用级联衰变$B_c\to B_sπ$、$B_s\to D_s\ellν$研究$B_c$介子的$c\to s$衰变通道的可行性和优越性。我们也考虑了来自矢量激发(如级联中间阶段的$B_s^*$、$D_s^*$或$ρ$)以及相反级联$B_c\to B_s\ellν$、$B_s\to D_sπ$的可能污染。我们展示了π介子和轻子的$p_T$分布如何可能有助于区分各种形状因子模型,为此,我们要么需要在LHC获得更高的集成亮度,要么需要一个高亮度的$e^+e^-$ B工厂来生产$B_c$介子。

英文摘要:

We study the feasibility and advantages of investigating the $c\to s$ decay channel of the $B_c$ meson through the cascade decay $B_c\to B_sπ$, $B_s\to D_s\ellν$. We take into account possible contaminations coming from the vector excitations (like $B_s^*$, $D_s^*$ or $ρ$ in the intermediate stages of the cascade) too, as well as the opposite cascade $B_c\to B_s\ellν$, $B_s\to D_sπ$. We show how the $p_T$ distribution of the pion and the lepton can possibly help to differentiate between various form factor models, for which we either need more integrated luminosity at the LHC, or a high-luminosity $e^+e^-$ B factory producing $B_c$ mesons too.

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。

↑