scholarly journals Event Rates for the Scattering of Weakly Interacting Massive Particles from 23Na and 40Ar

Particles ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 75-92
Author(s):  
R. Sahu ◽  
V. K. B. Kota ◽  
T. S. Kosmas
Keyword(s):  
Nuclear Structure ◽  
Magnetic Moments ◽  
Spectroscopic Properties ◽  
Weakly Interacting Massive Particles ◽  
Detection Rates ◽  
Hartree Fock ◽  
Weakly Interacting ◽  
Massive Particles ◽  
Event Rates ◽  
Detector Materials

Detection rates for the elastic and inelastic scattering of weakly interacting massive particles (WIMPs) off 23Na are calculated within the framework of Deformed Shell Model (DSM) based on Hartree-Fock states. At first, the spectroscopic properties of the detector nucleus, like energy spectra and magnetic moments, are evaluated and compared with experimental data. Following the good agreement of these results, DSM wave functions are used for obtaining elastic and inelastic spin structure functions, nuclear structure coefficients and so forth for the WIMP-23Na scattering. Then, the event rates are also computed with a given set of supersymmetric parameters. In the same manner, using DSM wavefunctions, nuclear structure coefficients and event rates for elastic scattering of WIMPs from 40Ar are also obtained. These results for event rates and also for annual modulation will be useful for the ongoing and future WIMP detection experiments involving detector materials with 23Na and 40Ar nuclei.

scholarly journals Realistic Calculations for Cold Dark Matter Detection Rates

2020 ◽  
Vol 13 ◽  
pp. 283
Author(s):  
T. S. Kosmas ◽  
M. Kortelainen ◽  
J. Suhonen ◽  
J. Toivanen
Keyword(s):  
Dark Matter ◽  
Nuclear Structure ◽  
Large Scale ◽  
Cold Dark Matter ◽  
Scattering Problem ◽  
Realistic Model ◽  
Supersymmetric Particle ◽  
Detection Rates ◽  
Model Spaces ◽  
Event Rates

The scattering of the cold dark matter (CDM) candidate LSP (Lightest Supersymmetric Particle) off nuclei is investigated. We focus on the nuclear-structure aspects of the LSP-nucleus scattering problem and computed the associated event rates as well as the annual modulation signals for the 23Na, 71Ga, 73Ge and 127I CDM detectors by using the nuclear shell model in realistic model spaces and exploiting microscopic effective two-body interactions. Large-scale computations had to be performed in order to achieve convergence of the results. The relevance of the spin-dependent and coherent channels for the event rates is discussed, from both the nuclear structure and the SUSY-model viewpoints.

Detecting halo weakly interacting massive particles with a cryogenic phonon detector

1991 ◽  
Author(s):  
N. Wang ◽  
P. D. Barnes ◽  
A. Cummings ◽  
J. Emes ◽  
Y. Giraud-Héraud ◽  
...  
Keyword(s):  
Weakly Interacting Massive Particles ◽  
Weakly Interacting ◽  
Massive Particles

scholarly journals WEAKLY-INTERACTING MASSIVE PARTICLES IN TORSIONALLY-GRAVITATING DIRAC THEORY

2013 ◽  
Vol 22 (10) ◽  
pp. 1350071 ◽  
Author(s):  
LUCA FABBRI
Keyword(s):  
Dark Matter ◽  
Weakly Interacting Massive Particles ◽  
Dirac Theory ◽  
Dirac Fields ◽  
Weakly Interacting ◽  
Massive Particles ◽  
Matter Fields ◽  
Dirac Matter

We shall consider the problem of Dark Matter (DM) in torsion gravity with Dirac matter fields; we will consider the fact that if Weakly-Interacting Massive Particles in a bath are allowed to form condensates then torsional effects may be relevant even at galactic scales: we show that torsionally-gravitating Dirac fields have interesting properties for the problem of DM. We discuss consequences.

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