The MATHUSLA Test Stand

Maf Alidra; Cristiano Alpigiani; Austin Ball; Paolo Camarri; Roberto Cardarelli; John Paul Chou; David Curtin; Erez Etzion; Ali Garabaglu; Brandon Gomes; Roberto Guida; W. Kuykendall; Audrey Kvam; Dragoslav Lazic; H. J. Lubatti; Giovanni Marsella; Gilad Mizrachi; Antonio Policicchio; Mason Proffitt; Joe Rothberg; Rinaldo Santonico; Yiftah Silver; Steffie Ann Thayil; Emma Torro-Pastor; Gordon Watts; Charles Young

doi:10.1016/j.nima.2020.164661

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arXiv · 2005.02018

The MATHUSLA Test Stand

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Abstract

The rate of muons from LHC $pp$ collisions reaching the surface above the ATLAS interaction point is measured and compared with expected rates from decays of $W$ and $Z$ bosons and $b$- and $c$-quark jets. In addition, data collected during periods without beams circulating in the LHC provide a measurement of the background from cosmic ray inelastic backscattering that is compared to simulation predictions. Data were recorded during 2018 in a 2.5 $\times$ 2.5 $\times$ 6.5~$\rm{m}^3$ active volume MATHUSLA test stand detector unit consisting of two scintillator planes, one at the top and one at the bottom, which defined the trigger, and six layers of RPCs between them, grouped into three $(x,y)$-measuring layers separated by 1.74 m from each other. Triggers selecting both upward-going tracks and downward-going tracks were used.

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Maf Alidra, Cristiano Alpigiani, Austin Ball, Paolo Camarri, Roberto Cardarelli, John Paul Chou, David Curtin, Erez Etzion, Ali Garabaglu, Brandon Gomes, Roberto Guida, W. Kuykendall, Audrey Kvam, Dragoslav Lazic, H. J. Lubatti, Giovanni Marsella, Gilad Mizrachi, Antonio Policicchio, Mason Proffitt, Joe Rothberg, Rinaldo Santonico, Yiftah Silver, Steffie Ann Thayil, Emma Torro-Pastor, Gordon Watts, Charles Young. 2020-05-05. The MATHUSLA Test Stand. https://doi.org/10.1016/j.nima.2020.164661

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