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arXiv 1203.0187hep-phhep-ex
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LHC的四个轻子味破坏信号

Four lepton flavor violating signals at the LHC

Dilip Kumar Ghosh, Probir Roy, Sourov Roy

摘要:

在标准模型的味道之谜背后,预计会有一些未知的动力学在起作用。有推测认为,这可能表现在兆量级的显著强度上。结果之一可能是轻子味破坏与轻子总数守恒。在中微子振荡实验中已经观察到这种现象,这种现象可能在TeV能量下表现得更突出,从而标志着一种全新的物理学。已经参考LHC研究了建议的味道破坏带电双轻子态。在这里,我们研究的味道违反带电四轻子的生产和检测在LHC被证明有一定的优势,在寻找轻子味道违反。分类的所有六个费米子运营商,在手征的基础上,并有助于这样的过程中,相应的截面为每个在14 TeV pp碰撞计算下的假设下,单一运营商的优势。我们进一步提出了新的物理尺度$Λ$的灵敏度达到的积分亮度。

英文摘要:

Some yet unknown dynamics is expected to be at work behind the flavor puzzles of the Standard Model. Speculations exist that this may manifest itself in significant strength at the terascale. One consequence may be lepton flavor violation with total lepton number conserved. Already observed in neutrino oscillation experiments, such a phenomenon may show up more prominently at TeV energies, thus signaling a completely new physics. Proposed flavor violating charged dilepton states have already been studied with reference to the LHC. Here we study the production and detection at the LHC of flavor violating charged quadrileptons which are shown to have certain advantages over dileptons in searching for lepton flavor violation. A classification of all six-fermionic operators, in the chiral basis and contributing to such processes, is made and the corresponding cross section for each in 14 TeV pp collisions is computed under the hypothesis of single operator dominance. We further present the sensitivity reach of the new physics scale $Λ$ in terms of the integrated luminosity.

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