TY - JOUR
T1 - Enhanced prospects for direct detection of inelastic dark matter from a non-galactic diffuse component
AU - Herrera, Gonzalo
AU - Ibarra, Alejandro
AU - Shirai, Satoshi
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/4/1
Y1 - 2023/4/1
N2 - In some scenarios, the dark matter particle predominantly scatters inelastically with the target, producing a heavier neutral particle in the final state. In this class of scenarios, the reach in parameter space of direct detection experiments is limited by the velocity of the dark matter particle, usually taken as the escape velocity from the Milky Way. On the other hand, it has been argued that a fraction of the dark matter particles in the Solar System could be bound to the envelope of the Local Group or to the Virgo Supercluster, and not to our Galaxy, and therefore could carry velocities larger than the escape velocity from the Milky Way. In this paper we estimate the enhancement in sensitivity of current direct detection experiments to inelastic dark matter scatterings with nucleons or electrons due to the non-galactic diffuse components, and we discuss the implications for some well motivated models.
AB - In some scenarios, the dark matter particle predominantly scatters inelastically with the target, producing a heavier neutral particle in the final state. In this class of scenarios, the reach in parameter space of direct detection experiments is limited by the velocity of the dark matter particle, usually taken as the escape velocity from the Milky Way. On the other hand, it has been argued that a fraction of the dark matter particles in the Solar System could be bound to the envelope of the Local Group or to the Virgo Supercluster, and not to our Galaxy, and therefore could carry velocities larger than the escape velocity from the Milky Way. In this paper we estimate the enhancement in sensitivity of current direct detection experiments to inelastic dark matter scatterings with nucleons or electrons due to the non-galactic diffuse components, and we discuss the implications for some well motivated models.
KW - dark matter experiments
KW - dark matter simulations
KW - dark matter theory
KW - semi-analytic modeling
UR - http://www.scopus.com/inward/record.url?scp=85152567648&partnerID=8YFLogxK
U2 - 10.1088/1475-7516/2023/04/026
DO - 10.1088/1475-7516/2023/04/026
M3 - Article
AN - SCOPUS:85152567648
SN - 1475-7516
VL - 2023
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
IS - 4
M1 - 026
ER -