Prospects for discovering supersymmetric long-lived particles with MoEDAL.

Area of Science:

• High-energy particle physics
• Supersymmetry searches
• Experimental particle physics

Background:

• The MoEDAL experiment at the LHC is designed to detect highly ionizing particles.
• Long-lived supersymmetric particles (sleptons) are potential candidates for new physics beyond the Standard Model.
• Previous searches by ATLAS and CMS have not yet excluded certain scenarios involving long-lived sleptons.

Purpose of the Study:

• To investigate the potential of the MoEDAL experiment for discovering long-lived supersymmetric sleptons.
• To compare MoEDAL's sensitivity with that of ATLAS and CMS in specific phenomenological models.
• To explore the connection between long-lived sleptons and anomalous astrophysical events detected by ANITA.

Main Methods:

• Utilized Monte Carlo simulations to model particle interactions and detector responses.
• Compared the detection capabilities of MoEDAL against ATLAS and CMS.
• Focused on scenarios with intermediate neutral long-lived particles in the slepton decay chain.

Main Results:

• MoEDAL offers complementary discovery reach to ATLAS and CMS due to looser selection criteria and minimal background.
• The study identifies specific scenarios where MoEDAL's sensitivity is particularly advantageous.
• The mass range relevant for MoEDAL in detecting charged staus is consistent with explanations for ANITA anomalies.

Conclusions:

• MoEDAL has significant potential for discovering long-lived sleptons in specific supersymmetric models.
• This research highlights MoEDAL's unique role in complementing existing LHC experiments.
• The findings suggest a possible link between Supersymmetry, long-lived sleptons, and observed anomalous cosmic events.