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arXiv 0808.3302hep-ph
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在CERN大型强子对撞机上额外维味模型中的同号顶对产生

Same-sign top pair production in an extra-dimension model of flavor at the CERN Large Hadron Collider

Jun Gao, Chong Sheng Li, Xiangdong Gao, Zhao Li

摘要:

在大型强子对撞机(LHC)上研究了具有味道破坏的Randall-Sundrum(RS)模型中由第一个Kluza-Klein(KK)胶子激发介导的同号顶对产生,其中费米子和KK规范玻色子之间的非普适耦合将导致可观测到的树水平的味道变化中性流(FCNC)效应.我们发现,在我们的例子中产生的同号顶夸克具有高能量和高横动量的性质,即使当KK胶子的质量达到3 TeV时,也能在同号双轻子通道中产生可观测的信号.我们进一步研究了LHC探测味道违反参数的潜力,发现LHC可以探测到它们的值下降到0.06。

英文摘要:

We study the same-sign top pair production mediated by the first Kluza-Klein (KK) excitation of the gluon in the Randall-Sundrum (RS) model with flavor violation at the Large Hadron Collider (LHC), in which the nonuniversal couplings between fermions and KK gauge bosons will lead to observable tree level flavor-changing neutral current (FCNC) effects. We find that the same-sign top quarks produced in our case have property of high energy and high transverse momentum, and lead to an observable signal in the same-sign dilepton channel even when the mass of the KK gluon reach up to 3 TeV. We further investigate the potential of the LHC to probe the flavor violating parameters and find that the LHC can probe their values down to 0.06.

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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