PoS - Proceedings of Science
Volume 449 - The European Physical Society Conference on High Energy Physics (EPS-HEP2023) - T03 Dark Matter
Two-component dark matter: How to get the hint at collider?
J. Lahiri*, B. Mukhopadhyayad, S. Bhattacharya, P. Ghosh and B. Mukhopadhyaya
Full text: pdf
Pre-published on: March 06, 2024
Published on: March 21, 2024
We investigate ways of identifying two kinds of dark matter (DM) component particles at high-energy colliders. The strategy is to notice and distinguish double-peaks (humps) in the missing energy/transverse energy distribution. The relative advantage of looking for {\em missing energy} is pointed out, in view of the fact that the longitudinal component of the momentum imbalance becomes an added input. It thus turns out that an electron-positron collider is better suited for discovering a two-component DM scenario. Furthermore, using Gaussian fits of
the distribution histograms, we develop a set of criteria to evaluate the distinguishability of the two-peaks quantitatively.
DOI: https://doi.org/10.22323/1.449.0133
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