论文标题

$ξ_{bc} $的HADRONIC生产,在LHC的固定目标实验中具有内在的重夸克内容

Hadronic production of $Ξ_{bc}$ with the intrinsic heavy-quark content at a fixed-target experiment at the LHC

论文作者

Li, Hong-Tai, Zheng, Xu-Chang, Yan, Jiang, Wu, Xing-Gang, Chen, Gu

论文摘要

在本文中,我们在LHC的固定目标实验(@lhc之后)进行了$ξ_{bc} $ baryon的hadronic生产的详细研究。在估计生产交叉部分时,考虑了$(g+g)$,$(g+c)$和$(g+b)$生产机制。对于最初的重夸克,除了外部组件外,我们还考虑了内在组件。发现$(g+c)$和$(g+b)$生产机制为$ξ_{bc} $生产提供了可观的贡献,而$(g+b)$机制则占主导地位。结果表明,如果@LHC之后,每年可以生产$ 3.40 \ times10^5 $ $匹配{bc} $事件,如果@lhc的集成光度可以高达$ 2 \,{\ rm fb}^{ - 1} $。此外,内在的重夸克可能会对生产产生重大影响,这可能会在@lhc之后进行内在组件进行反相反。

In this paper, we make a detailed study on the hadronic production of the $Ξ_{bc}$ baryon at a fixed target experiment at the LHC (After@LHC). In estimating the production cross sections, the $(g+g)$, $(g+c)$ and $(g+b)$ production mechanisms are considered. For the initial heavy quarks, in addition to the extrinsic component, we also consider the intrinsic component. It is found that the $(g+c)$ and $(g+b)$ production mechanisms give sizable contributions to the $Ξ_{bc}$ production, and the $(g+b)$ mechanism dominates the production. The results show that there are about $3.40\times10^5$ $Ξ_{bc}$ events can be produced per year at After@LHC if the integrated luminosity of After@LHC can be up to $2\,{\rm fb}^{-1}$ per year. Moreover, the intrinsic heavy quarks can have significant impact on the production, which inversely makes the intrinsic component be possibly tested at the After@LHC.

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