Decaying light particles in the SHiP experiment. II. Signal rate estimates for light neutralinos

TL;DR

This paper estimates the expected signal rate of light neutralinos in the SHiP experiment, considering new production and decay channels within R-parity violating supersymmetric models, and constrains parameters using past experiment data.

Contribution

It introduces new production and decay channels for light neutralinos and refines signal rate estimates for the SHiP experiment within supersymmetric models.

Findings

Estimated signal rates for light neutralinos at SHiP.

Identified new production channels via beauty mesons.

Constrained model parameters using CHARM experiment results.

Abstract

Considering the supersymmetric models with light neutralino and R-parity violation, we perform estimates of the signal rate expected at the recently proposed fixed target SHiP experiment exploiting CERN SPS beam of 400 GeV protons. We extend the existing studies by introducing new production channels (in particular through the beauty mesons) and decay modes. We also constrain model parameter space from analysis of negative results of the CHARM experiment.