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arXiv 2004.11305hep-phhep-ex
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用MoEDAL寻找长寿命带电粒子的前景

Prospects of searches for long-lived charged particles with MoEDAL

B. S. Acharya, A. De Roeck, J. Ellis, D. K. Ghosh, R. Masełek, G. Panizzo, J. L. Pinfold, K. Sakurai, A. Shaa, A. Wall

摘要:

我们研究了在大型强子对撞机上用MoEDAL探测器寻找外来长寿命粒子的前景,假设在运行3结束时预计的积分光度为30 fb $^{-1}$。能源和发展部在距离相互作用点几米处安装了核径迹探测器,这些探测器对任何高度电离粒子都很敏感。因此,MoEDAL能够分别检测具有低速度$β< 0.15$或$< 0.3$且寿命大于${\cal O}(1) \,{\rm m}/c$的单电荷或双电荷粒子。我们研究了MoEDAL对各种长寿命单电荷超对称粒子和几种具有不同自旋和SU(2)电荷的双电荷长寿命粒子的灵敏度。我们比较了未来的MoEDAL质量达到目前的限制,从ATLAS和CMS,其中涉及辅助分析假设。MoEDAL对双电荷费米子的搜索尤其具有竞争力。

英文摘要:

We study the prospects of searches for exotic long-lived particles with the MoEDAL detector at the LHC, assuming the integrated luminosity of 30 fb$^{-1}$ that is expected at the end of Run 3. MoEDAL incorporates nuclear track detectors deployed a few metres away from the interaction point, which are sensitive to any highly-ionizing particles. Hence MoEDAL is able to detect singly- or doubly-charged particles with low velocities $β< 0.15$ or $< 0.3$, respectively, and lifetimes larger than ${\cal O}(1) \,{\rm m}/c$. We examine the MoEDAL sensitivity to various singly-charged supersymmetric particles with long lifetimes and to several types of doubly-charged long-lived particles with different spins and SU(2) charges. We compare the prospective MoEDAL mass reaches to current limits from ATLAS and CMS, which involve auxiliary analysis assumptions. MoEDAL searches for doubly-charged fermions are particularly competitive.

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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