Analysis of Long Lived Particle Decays with the MATHUSLA Detector
arXiv:1705.06327 · doi:10.1103/PhysRevD.97.015006
Abstract
The MATHUSLA detector is a simple large-volume tracking detector to be located on the surface above one of the general-purpose experiments at the Large Hadron Collider. This detector was proposed in [1] to detect exotic, neutral, long-lived particles that might be produced in high-energy proton-proton collisions. In this paper, we consider the use of the limited information that MATHUSLA would provide on the decay products of the long-lived particle. For the case in which the long-lived particle is pair-produced in Higgs boson decays, we show that it is possible to measure the mass of this particle and determine the dominant decay mode with less than 100 observed events. We discuss the ability of MATHUSLA to distinguish the production mode of the long-lived particle and to determine its mass and spin in more general cases.
arXiv comment16 pages + references, 9 figures; v2 has a new appendix with further analysis of LLP decays to 2 jets; in v3 MATHUSLA is spelled correctly
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