Constraints on Pseudo-Nambu-Goldstone dark matter from direct detection experiment and neutron star reheating temperature

Abstract

Pseudo-Nambu-Goldstone dark matter connected to Standard Model fermion through the Higgs portal has the property that its direct detection vanishes in the zero momentum transfer limit due to a cancellation mechanism. This feature helps the Pseudo-Nambu-Goldstone dark matter to escape the stringent constraints from direct detection experiments. In this paper we explore new constraints on parameter space of non-zero momentum transfer from the direct detection experiments, and also from the neutron star temperature via the dark matter reheating mechanism.

A Unified Model for Inflation, pseudo-Goldstone Dark Matter, Neutrino Mass and Baryogenesis

“…We find the inverse seesaw to be the chosen path to make our scenario consistent with the generation of baryon asymmetry. The associated singlet majoron field [14], which acquires mass due to the explicit breaking inherent to the AD leptogenesis mechanism, plays the role of a pseudo-Goldstone dark matter recently discussed in the literature [15][16][17][18][19][20][21][22][23][24]. The mass of the DM (m DM ) is connected to the magnitude of baryon asymmetry n B /s.…”

Scattering searches for dark matter in subhalos: neutron stars, cosmic rays, and old rocks

“…These NSs will travel through subhalos and capture constituent DM particles, in a process that transfers DM kinetic energy of order the DM mass, because of the steep gravitational potential around NSs. This method was first proposed to detect smooth halo DM [31], which would result in infrared emission from NSs observable by upcoming telescopes, and is currently an active area of research [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51].…”