在$ \ sqrt {s} = 13 $ tev中搜索Proton-Proton碰撞中的Millicharged粒子

论文标题

在$ \ sqrt {s} = 13 $ tev中搜索Proton-Proton碰撞中的Millicharged粒子

Search for millicharged particles in proton-proton collisions at $\sqrt{s} = 13$ TeV

论文作者

Ball, A., Beauregard, G., Brooke, J., Campagnari, C., Carrigan, M., Citron, M., De La Haye, J., De Roeck, A., Elskens, Y., Franco, R. Escobar, Ezeldine, M., Francis, B., Gastal, M., Ghimire, M., Goldstein, J., Golf, F., Guiang, J., Haas, A., Heller, R., Hill, C. S., Lavezzo, L., Loos, R., Lowette, S., Magill, G., Manley, B., Marsh, B., Miller, D. W., Odegard, B., Saab, F. R., Sahili, J., Schmitz, R., Setti, F., Shakeshaft, H., Stuart, D., Swiatlowski, M., Yoo, J., Zaraket, H., Zheng, H.

论文摘要

我们报告了使用Cern大型强子对撞机在2018年提供的质子蛋白碰撞的数据样本，以搜索具有比电子电荷小得多的基本颗粒，这对应于在13 TEV的大型中心能量下的37.5 fb $^{ - 1} $的集成发光度。部署了基于原型闪烁体的检测器，以对具有电荷$ {\ leq} 0.1E $的粒子敏感的强晶子对撞机进行首次搜索。具有20至4700 MEV质量的新颗粒的存在，其置信度为95％，费用在$ 0.006E $至$ 0.3E $之间，具体取决于其质量。大于$ 700 $ MEV的大众实现了新的敏感性。

We report on a search for elementary particles with charges much smaller than the electron charge using a data sample of proton-proton collisions provided by the CERN Large Hadron Collider in 2018, corresponding to an integrated luminosity of 37.5 fb$^{-1}$ at a center-of-mass energy of 13 TeV. A prototype scintillator-based detector is deployed to conduct the first search at a hadron collider sensitive to particles with charges ${\leq}0.1e$. The existence of new particles with masses between 20 and 4700 MeV is excluded at 95% confidence level for charges between $0.006e$ and $0.3e$, depending on their mass. New sensitivity is achieved for masses larger than $700$ MeV.

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