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Timing information at HL-LHC: Complete determination of masses of Dark Matter and Long lived particle

Authors :
Flowers, Zachary
Kang, Dong Woo
Meier, Quinn
Park, Seong Chan
Rogan, Christopher
Source :
JHEP 03 (2020) 132
Publication Year :
2019

Abstract

A long standing problem in kinematics at the hadron colliders is to determine the mass of invisible particles. This issue is particularly important for the signals of dark matter, which becomes one of the prominent targets of future collider experiments. In this paper, we show that the additional information from the precise timing measurement, which will be available at the planned high-liminosity run of the LHC (HL-LHC), will shade new light on the kinematics study. As a concrete example, we focus on the signal of the pair produced long-lived particles ($LLP_{1,2}$), respectively leaving displaced vertex with visible ($V_{1,2}$) and invisible ($I_{1,2}$) final state, $pp \to LLP_1+LLP_2 \to (V_1+I_1)+(V_2+I_2)$. We explicitly show that this system is completely solvable with timing information.<br />Comment: 14 pages, 5 figures

Details

Database :
arXiv
Journal :
JHEP 03 (2020) 132
Publication Type :
Report
Accession number :
edsarx.1903.05825
Document Type :
Working Paper
Full Text :
https://doi.org/10.1007/JHEP03(2020)132