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arXiv 0909.2862hep-phhep-exnucl-ex
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低能e-p碰撞中的暗力探测

Dark Force Detection in Low Energy e-p Collisions

Marat Freytsis, Grigory Ovanesyan, Jesse Thaler

摘要:

本文研究了在低能电子质子对撞机上探测质量m_X < 100 MeV的轻玻色子X的前景。我们专注于X主要衰变到E+ E-的情况下,最近的“暗力”模型的动机。为了避开直接和间接的约束,X必须与标准模型有小的耦合(α_X < 10^-8)和足够大的质量(m_X >10 MeV)。通过比较e-pe + e-末态的信号和背景截面,我们得出结论,暗力检测需要大约1个逆阿托巴恩的积分亮度,这可以通过即将到来的JLab提案来实现。

英文摘要:

We study the prospects for detecting a light boson X with mass m_X < 100 MeV at a low energy electron-proton collider. We focus on the case where X dominantly decays to e+ e- as motivated by recent "dark force" models. In order to evade direct and indirect constraints, X must have small couplings to the standard model (alpha_X < 10^-8) and a sufficiently large mass (m_X >10 MeV). By comparing the signal and background cross sections for the e- p e+ e- final state, we conclude that dark force detection requires an integrated luminosity of around 1 inverse attobarn, achievable with a forthcoming JLab proposal.

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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