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arXiv 1106.1966hep-ph
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作为LHC顶色辅助人工色模型探测的与底夸克对相关的带电顶介子产生

The charged top-pion production associated with the bottom quark pair as a probe of the topcolor-assisted technicolor model at the LHC

Guoli Liu, Ping Zhou

摘要:

顶色辅助的人工色(TC 2)模型预言了带电顶π介子($π_t^\pm$)的存在,它与第三代费米子的强耦合将通过部分子过程$c\bar b \to π_t^+ b \bar b$和$u\bar d(c\bar s) \to π_t^+ b \bar b$诱导与CERN大型强子对撞机(LHC)的底夸克和反底夸克对相关的带电顶π介子产生.本文研究了这些产生过程,发现由于标准模型背景较小,它们的产生率在大部分参数空间上都能超过LHC的$3σ$灵敏度,因此这些过程可以作为TC 2模型的一个很好的探测器。

英文摘要:

The topcolor-assisted technicolor (TC2) model predicts the existence of the charged top-pions ($π_t^\pm$), whose large couplings with the third generation fermions will induce the charged top-pion production associated with the bottom and anti-bottom quark pair at the CERN Large Hadron Collider (LHC) through the parton processes $c\bar b \to π_t^+ b \bar b$ and $u\bar d(c\bar s) \to π_t^+ b \bar b$. In this paper we examine these productions and find that, due to the small Standard Model backgrounds, their production rates can exceed the $3σ$ sensitivity of the LHC in a large part of parameter space, so these processes may serve as a good probe for the TC2 model.

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。

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