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Title: Implications of the XENON1T excess on the dark matter interpretation

Abstract

The dark matter interpretation for a recent observation of excessive electron recoil events at the XENON1T detector seems challenging because its velocity is not large enough to give rise to recoiling electrons of O(keV). Fast-moving or boosted dark matter scenarios are receiving attention as a remedy for this issue, rendering the dark matter interpretation a possibility to explain the anomaly. We investigate various scenarios where such dark matter of spin 0 and 1/2 interacts with electrons via an exchange of vector, axial-vector, pseudo-scalar, or scalar mediators. We find parameter values not only to reproduce the excess but to be consistent with existing bounds. Our study suggests that the scales of mass and coupling parameters preferred by the excess can be mostly affected by the type of mediator, and that significantly boosted dark matter can explain the excess depending on the mediator type and its mass choice. The method proposed in this work is general, and hence readily applicable to the interpretation of observed data in the dark matter direct detection experiment.

Authors:
 [1];  [2];  [3];  [4];  [5]; ORCiD logo [6]
  1. Univ. of Kansas, Lawrence, KS (United States); Jazan Univ. (Saudi Arabia)
  2. Texas A & M Univ., College Station, TX (United States)
  3. Univ. of Kansas, Lawrence, KS (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States); Queen's Univ., Kingston, ON (Canada); Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada)
  5. Chungnam National Univ., Daejeon (Korea)
  6. Jeonbuk National Univ. (Korea)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1805230
Report Number(s):
BNL-221746-2021-JAAM
Journal ID: ISSN 1029-8479
Grant/Contract Number:  
SC0012704; SC001947; SC0021447; FG02-13ER41976; SC0009913; SC0010813
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2021; Journal Issue: 5; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Cosmology of Theories beyond the SM

Citation Formats

Alhazmi, Haider, Kim, Doojin, Kong, Kyoungchul, Mohlabeng, Gopolang, Park, Jong-Chul, and Shin, Seodong. Implications of the XENON1T excess on the dark matter interpretation. United States: N. p., 2021. Web. https://doi.org/10.1007/jhep05(2021)055.
Alhazmi, Haider, Kim, Doojin, Kong, Kyoungchul, Mohlabeng, Gopolang, Park, Jong-Chul, & Shin, Seodong. Implications of the XENON1T excess on the dark matter interpretation. United States. https://doi.org/10.1007/jhep05(2021)055
Alhazmi, Haider, Kim, Doojin, Kong, Kyoungchul, Mohlabeng, Gopolang, Park, Jong-Chul, and Shin, Seodong. Fri . "Implications of the XENON1T excess on the dark matter interpretation". United States. https://doi.org/10.1007/jhep05(2021)055. https://www.osti.gov/servlets/purl/1805230.
@article{osti_1805230,
title = {Implications of the XENON1T excess on the dark matter interpretation},
author = {Alhazmi, Haider and Kim, Doojin and Kong, Kyoungchul and Mohlabeng, Gopolang and Park, Jong-Chul and Shin, Seodong},
abstractNote = {The dark matter interpretation for a recent observation of excessive electron recoil events at the XENON1T detector seems challenging because its velocity is not large enough to give rise to recoiling electrons of O(keV). Fast-moving or boosted dark matter scenarios are receiving attention as a remedy for this issue, rendering the dark matter interpretation a possibility to explain the anomaly. We investigate various scenarios where such dark matter of spin 0 and 1/2 interacts with electrons via an exchange of vector, axial-vector, pseudo-scalar, or scalar mediators. We find parameter values not only to reproduce the excess but to be consistent with existing bounds. Our study suggests that the scales of mass and coupling parameters preferred by the excess can be mostly affected by the type of mediator, and that significantly boosted dark matter can explain the excess depending on the mediator type and its mass choice. The method proposed in this work is general, and hence readily applicable to the interpretation of observed data in the dark matter direct detection experiment.},
doi = {10.1007/jhep05(2021)055},
journal = {Journal of High Energy Physics (Online)},
number = 5,
volume = 2021,
place = {United States},
year = {2021},
month = {5}
}

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