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Title: Direct detection of exothermic dark matter with light mediator

Abstract

We study the dark matter (DM) direct detection for the models with the effects of the isospin-violating couplings, exothermic scatterings, and/or the lightness of the mediator, proposed to relax the tension between the CDMS-Si signals and null experiments. In the light of the new updates of the LUX and CDMSlite data, we find that many of the previous proposals are now ruled out, including the Ge-phobic exothermic DM model and the Xe-phobic DM one with a light mediator. We also examine the exothermic DM models with a light mediator but without the isospin violation, and we are unable to identify any available parameter space that could simultaneously satisfy all the experiments. The only models that can partially relax the inconsistencies are the Xe-phobic exothermic DM models with or without a light mediator. But even in this case, a large portion of the CDMS-Si regions of interest has been constrained by the LUX and SuperCDMS data.

Authors:
 [1];  [2];  [2]; ;  [3];  [4];  [2]
  1. Chongqing University of Posts & Telecommunications,Chongqing, 400065 (China)
  2. (China)
  3. Department of Physics, National Tsing Hua University,Hsinchu, Taiwan (China)
  4. Department of Physics, Tsinghua University,Beijing, 100084 (China)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22572128
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2016; Journal Issue: 08; Other Information: PUBLISHER-ID: JCAP08(2016)009; OAI: oai:repo.scoap3.org:16697; cc-by Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COUPLING; GE SEMICONDUCTOR DETECTORS; ISOSPIN; NEUTRALINOS; NONLUMINOUS MATTER; TIME PROJECTION CHAMBERS; UNDERGROUND FACILITIES; WIMPS; XENON

Citation Formats

Geng, Chao-Qiang, Department of Physics, National Tsing Hua University,Hsinchu, Taiwan, Physics Division, National Center for Theoretical Sciences,Hsinchu, Taiwan, Huang, Da, Lee, Chun-Hao, Wang, Qing, and Collaborative Innovation Center of Quantum Matter,Beijing, 100084. Direct detection of exothermic dark matter with light mediator. United States: N. p., 2016. Web. doi:10.1088/1475-7516/2016/08/009.
Geng, Chao-Qiang, Department of Physics, National Tsing Hua University,Hsinchu, Taiwan, Physics Division, National Center for Theoretical Sciences,Hsinchu, Taiwan, Huang, Da, Lee, Chun-Hao, Wang, Qing, & Collaborative Innovation Center of Quantum Matter,Beijing, 100084. Direct detection of exothermic dark matter with light mediator. United States. doi:10.1088/1475-7516/2016/08/009.
Geng, Chao-Qiang, Department of Physics, National Tsing Hua University,Hsinchu, Taiwan, Physics Division, National Center for Theoretical Sciences,Hsinchu, Taiwan, Huang, Da, Lee, Chun-Hao, Wang, Qing, and Collaborative Innovation Center of Quantum Matter,Beijing, 100084. 2016. "Direct detection of exothermic dark matter with light mediator". United States. doi:10.1088/1475-7516/2016/08/009.
@article{osti_22572128,
title = {Direct detection of exothermic dark matter with light mediator},
author = {Geng, Chao-Qiang and Department of Physics, National Tsing Hua University,Hsinchu, Taiwan and Physics Division, National Center for Theoretical Sciences,Hsinchu, Taiwan and Huang, Da and Lee, Chun-Hao and Wang, Qing and Collaborative Innovation Center of Quantum Matter,Beijing, 100084},
abstractNote = {We study the dark matter (DM) direct detection for the models with the effects of the isospin-violating couplings, exothermic scatterings, and/or the lightness of the mediator, proposed to relax the tension between the CDMS-Si signals and null experiments. In the light of the new updates of the LUX and CDMSlite data, we find that many of the previous proposals are now ruled out, including the Ge-phobic exothermic DM model and the Xe-phobic DM one with a light mediator. We also examine the exothermic DM models with a light mediator but without the isospin violation, and we are unable to identify any available parameter space that could simultaneously satisfy all the experiments. The only models that can partially relax the inconsistencies are the Xe-phobic exothermic DM models with or without a light mediator. But even in this case, a large portion of the CDMS-Si regions of interest has been constrained by the LUX and SuperCDMS data.},
doi = {10.1088/1475-7516/2016/08/009},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 08,
volume = 2016,
place = {United States},
year = 2016,
month = 8
}
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