Abstract
We present a preliminary study on the possibility to search for massive long-lived electrically charged particles at the MoEDAL detector. MoEDAL is sensitive to highly ionising objects such as magnetic monopoles or massive (meta-)stable electrically charged particles and we focus on the latter in this paper. Requirements on triggering or reducing the cosmic-ray and cavern background, applied in the ATLAS and CMS analyses for long-lived particles, are not necessary at MoEDAL, due to its completely different detector design and extremely low background. On the other hand, MoEDAL requires slow-moving particles, resulting in sensitivity to massive states with typically small production cross sections. Using Monte Carlo simulations, we compare the sensitivities of MoEDAL versus ATLAS/CMS for various long-lived particles in supersymmetric models, and we seek a scenario where MoEDAL can provide discovery reach complementary to ATLAS and CMS.
Highlights
Supersymmetry (SUSY) is an extension of the Standard Model (SM) which assigns to each SM field a superpartner field with a spin differing by a half unit
A word of caution is due here before drawing conclusions from this preliminary study: (i) We only considered one of the CMS analysis, other analyses sensitive to HSCPs might cover part or the whole of the region extended by Monopole and Exotics Detector At the LHC (MoEDAL), such as ones targeting displaced vertices [2, 3] or disappearing tracks [4, 5]
Concluding remarks and outlook We presented a preliminary study on the feasibility to detect massive metastable supersymmetric partners with the MoEDAL experiment in a complementary way to CMS, valid for ATLAS
Summary
Supersymmetry (SUSY) is an extension of the Standard Model (SM) which assigns to each SM field a superpartner field with a spin differing by a half unit. The general-purpose ATLAS and CMS experiments at the Large Hadron Collider (LHC) have searched for and set limits in such scenarios.
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