scholarly journals Constraints from a many-body method on spin-independent dark matter scattering off electrons using data from germanium and xenon detectors

2020 ◽  
Vol 102 (12) ◽  
Author(s):  
Mukesh K. Pandey ◽  
Lakhwinder Singh ◽  
Chih-Pan Wu ◽  
Jiunn-Wei Chen ◽  
Hsin-Chang Chi ◽  
...  
Keyword(s):  
Dark Matter ◽  
Many Body ◽  
Using Data ◽  
Dark Matter Scattering ◽  
Body Method

scholarly journals Relativistic impulse approximation in the atomic ionization process induced by millicharged particles

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Chen-Kai Qiao ◽  
Shin-Ted Lin ◽  
Hsin-Chang Chi ◽  
Hai-Tao Jia
Keyword(s):  
Dark Matter ◽  
Cross Sections ◽  
Direct Detection ◽  
Impulse Approximation ◽  
Dark Matter Particle ◽  
Ionization Process ◽  
Beyond The Standard Model ◽  
Next Generation ◽  
Many Body ◽  
Atomic Ionization

Abstract The millicharged particle has become an attractive topic to probe physics beyond the Standard Model. In direct detection experiments, the parameter space of millicharged particles can be constrained from the atomic ionization process. In this work, we develop the relativistic impulse approximation (RIA) approach, which can duel with atomic many-body effects effectively, in the atomic ionization process induced by millicharged particles. The formulation of RIA in the atomic ionization induced by millicharged particles is derived, and the numerical calculations are obtained and compared with those from free electron approximation and equivalent photon approximation. Concretely, the atomic ionizations induced by mllicharged dark matter particles and millicharged neutrinos in high-purity germanium (HPGe) and liquid xenon (LXe) detectors are carefully studied in this work. The differential cross sections, reaction event rates in HPGe and LXe detectors, and detecting sensitivities on dark matter particle and neutrino millicharge in next-generation HPGe and LXe based experiments are estimated and calculated to give a comprehensive study. Our results suggested that the next-generation experiments would improve 2-3 orders of magnitude on dark matter particle millicharge δχ than the current best experimental bounds in direct detection experiments. Furthermore, the next-generation experiments would also improve 2-3 times on neutrino millicharge δν than the current experimental bounds.

Halo-independent analysis of direct dark matter detection through electron scattering

2021 ◽  
Vol 2021 (12) ◽  
pp. 048
Author(s):  
Muping Chen ◽  
Graciela B. Gelmini ◽  
Volodymyr Takhistov
Keyword(s):  
Dark Matter ◽  
Direct Detection ◽  
Dark Matter Halo ◽  
Dark Halo ◽  
Sufficient Energy ◽  
Independent Analysis ◽  
Dark Matter Detection ◽  
Dark Matter Scattering ◽  
Matter Detection ◽  
Direct Dark Matter

Abstract Sub-GeV mass dark matter particles whose collisions with nuclei would not deposit sufficient energy to be detected, could instead be revealed through their interaction with electrons. Analyses of data from direct detection experiments usually require assuming a local dark matter halo velocity distribution. In the halo-independent analysis method, properties of this distribution are instead inferred from direct dark matter detection data, which allows then to compare different data without making any assumption on the uncertain local dark halo characteristics. This method has so far been developed for and applied to dark matter scattering off nuclei. Here we demonstrate how this analysis can be applied to scattering off electrons.

scholarly journals Momentum dependent dark matter scattering

2010 ◽  
Vol 2010 (01) ◽  
pp. 006-006 ◽  
Author(s):  
Spencer Chang ◽  
Aaron Pierce ◽  
Neal Weiner
Keyword(s):  
Dark Matter ◽  
Dark Matter Scattering

scholarly journals Constraints on spin-dependent dark matter scattering with long-lived mediators from TeV observations of the Sun with HAWC

2018 ◽  
Vol 98 (12) ◽  
Author(s):  
A. Albert ◽  
R. Alfaro ◽  
C. Alvarez ◽  
R. Arceo ◽  
J. C. Arteaga-Velázquez ◽  
...  
Keyword(s):  
Dark Matter ◽  
The Sun ◽  
Dark Matter Scattering

scholarly journals Many-body method for infinite nonperiodic systems

2004 ◽  
Vol 69 (24) ◽  
Author(s):  
G. Fratesi ◽  
G. P. Brivio ◽  
L. G. Molinari
Keyword(s):  
Many Body ◽  
Body Method

scholarly journals Multiphonon excitations from dark matter scattering in crystals

2020 ◽  
Vol 101 (3) ◽  
Author(s):  
Brian Campbell-Deem ◽  
Peter Cox ◽  
Simon Knapen ◽  
Tongyan Lin ◽  
Tom Melia
Keyword(s):  
Dark Matter ◽  
Dark Matter Scattering

scholarly journals A model independent approach to inelastic dark matter scattering

2014 ◽  
Vol 90 (9) ◽  
Author(s):  
G. Barello ◽  
Spencer Chang ◽  
Christopher A. Newby
Keyword(s):  
Dark Matter ◽  
Model Independent ◽  
Inelastic Dark Matter ◽  
Dark Matter Scattering
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