Minimal spin-3/2 dark matter in a simple s-channel model

The European Physical Journal C

Mohammed Omer Khojali¹  Ashok Goyal¹  Mukesh Kumar¹  Alan S. Cornell¹ 

[1] National Institute for Theoretical Physics, School of Physics and Mandelstam Institute for Theoretical Physics, University of the Witwatersrand, Wits, 2050, Johannesburg, South Africa;

关键词: Dark Matter;    Large Hadron Collider;    Dark Matter Particle;    Standard Model Particle;    Standard Model Fermion;   

DOI  :  10.1140/epjc/s10052-016-4589-4

来源: Springer

【 摘 要 】

We consider a spin-3/2 fermionic dark matter candidate (DM) interacting with Standard Model fermions through a vector mediator in the s-channel. We find that for pure vector couplings almost the entire parameter space of the DM and mediator mass consistent with the observed relic density is ruled out by the direct detection observations through DM-nucleon elastic scattering cross sections. In contrast, for pure axial-vector coupling, the most stringent constraints are obtained from monojet searches at the Large Hadron Collider.

【 授权许可】

CC BY