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arXiv 0910.0860hep-phhep-th
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快质子衰变

Fast Proton Decay

Tianjun Li, Dimitri V. Nanopoulos, Joel W. Walker

摘要:

我们考虑了可检验的翻转SU(5)XU(1)_X模型中的质子衰变,该模型具有TeV尺度的类矢量粒子,可以在自由费米子弦结构和F理论模型中实现.我们对以前研究中光阈值效应的确定进行了显著改进,并对重规范玻色子交换过程p \to e^+ π^0的第二回路进行了新的计算。累积的结果是相对较快的质子衰变,大多数最合理的参数空间都在未来的Hyper-Kamiokande和DUSEL实验的范围内。由于TeV尺度的矢量粒子可以在LHC中产生,我们预测未来十年最令人兴奋的粒子物理实验之间有很强的相关性。

英文摘要:

We consider proton decay in the testable flipped SU(5) X U(1)_X models with TeV-scale vector-like particles which can be realized in free fermionic string constructions and F-theory model building. We significantly improve upon the determination of light threshold effects from prior studies, and perform a fresh calculation of the second loop for the process p \to e^+ π^0 from the heavy gauge boson exchange. The cumulative result is comparatively fast proton decay, with a majority of the most plausible parameter space within reach of the future Hyper-Kamiokande and DUSEL experiments. Because the TeV-scale vector-like particles can be produced at the LHC, we predict a strong correlation between the most exciting particle physics experiments of the coming decade.

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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