skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Explaining the XENON1T Excess with Luminous Dark Matter

Abstract

We show that the excess in electron recoil events seen by the XENON1T experiment can be explained by a relatively low-mass luminous dark matter candidate. The dark matter scatters inelastically in the detector (or the surrounding rock) to produce a heavier dark state with a ~2 – 3 keV mass splitting. This heavier state then decays within the detector, producing a peak in the electron recoil spectrum that is a good fit to the observed excess. We comment on the ability of future direct detection experiments to differentiate this model from other “beyond the standard model” scenarios and from possible tritium backgrounds, including the use of diurnal modulation, multichannel signals, etc., as possible distinguishing features of this scenario.

Authors:
ORCiD logo; ; ; ORCiD logo; ; ORCiD logo
Publication Date:
Research Org.:
Univ. of Hawaii, Honolulu, HI (United States). High Energy Physics Group
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); Australian Research Council; National Science Foundation (NSF)
OSTI Identifier:
1671858
Alternate Identifier(s):
OSTI ID: 1780918
Grant/Contract Number:  
SC0010813; SC0010504; PHY-1820801
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 125 Journal Issue: 16; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Bell, Nicole F., Dent, James B., Dutta, Bhaskar, Ghosh, Sumit, Kumar, Jason, and Newstead, Jayden L. Explaining the XENON1T Excess with Luminous Dark Matter. United States: N. p., 2020. Web. https://doi.org/10.1103/PhysRevLett.125.161803.
Bell, Nicole F., Dent, James B., Dutta, Bhaskar, Ghosh, Sumit, Kumar, Jason, & Newstead, Jayden L. Explaining the XENON1T Excess with Luminous Dark Matter. United States. https://doi.org/10.1103/PhysRevLett.125.161803
Bell, Nicole F., Dent, James B., Dutta, Bhaskar, Ghosh, Sumit, Kumar, Jason, and Newstead, Jayden L. Mon . "Explaining the XENON1T Excess with Luminous Dark Matter". United States. https://doi.org/10.1103/PhysRevLett.125.161803.
@article{osti_1671858,
title = {Explaining the XENON1T Excess with Luminous Dark Matter},
author = {Bell, Nicole F. and Dent, James B. and Dutta, Bhaskar and Ghosh, Sumit and Kumar, Jason and Newstead, Jayden L.},
abstractNote = {We show that the excess in electron recoil events seen by the XENON1T experiment can be explained by a relatively low-mass luminous dark matter candidate. The dark matter scatters inelastically in the detector (or the surrounding rock) to produce a heavier dark state with a ~2 – 3 keV mass splitting. This heavier state then decays within the detector, producing a peak in the electron recoil spectrum that is a good fit to the observed excess. We comment on the ability of future direct detection experiments to differentiate this model from other “beyond the standard model” scenarios and from possible tritium backgrounds, including the use of diurnal modulation, multichannel signals, etc., as possible distinguishing features of this scenario.},
doi = {10.1103/PhysRevLett.125.161803},
journal = {Physical Review Letters},
number = 16,
volume = 125,
place = {United States},
year = {2020},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevLett.125.161803

Save / Share:

Works referenced in this record:

Luminous signals of inelastic dark matter in large detectors
journal, September 2019

  • Eby, Joshua; Fox, Patrick J.; Harnik, Roni
  • Journal of High Energy Physics, Vol. 2019, Issue 9
  • DOI: 10.1007/JHEP09(2019)115

FASER’s physics reach for long-lived particles
journal, May 2019


The LUX-ZEPLIN (LZ) experiment
journal, February 2020

  • Akerib, D. S.; Akerlof, C. W.; Akimov, D. Yu.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 953
  • DOI: 10.1016/j.nima.2019.163047

Inelastic frontier: Discovering dark matter at high recoil energy
journal, December 2016


Inelastic dark matter
journal, July 2001


Heating up neutron stars with inelastic dark matter
journal, September 2018

  • Bell, Nicole F.; Busoni, Giorgio; Robles, Sandra
  • Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 09
  • DOI: 10.1088/1475-7516/2018/09/018

The SeaQuest spectrometer at Fermilab
journal, June 2019

  • Aidala, C. A.; Arrington, J. R.; Ayuso, C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 930
  • DOI: 10.1016/j.nima.2019.03.039

Migdal effect in dark matter direct detection experiments
journal, March 2018

  • Ibe, Masahiro; Nakano, Wakutaka; Shoji, Yutaro
  • Journal of High Energy Physics, Vol. 2018, Issue 3
  • DOI: 10.1007/JHEP03(2018)194

Review of mathematics, numerical factors, and corrections for dark matter experiments based on elastic nuclear recoil
journal, December 1996


A facility to search for hidden particles at the CERN SPS: the SHiP physics case
journal, October 2016


Light Dark Matter Search with Ionization Signals in XENON1T
journal, December 2019


ForwArd Search ExpeRiment at the LHC
journal, February 2018


Signatures of pseudo-Dirac dark matter at high-intensity neutrino experiments
journal, October 2018


Light vector mediators facing XENON1T data
journal, October 2020


Luminous dark matter
journal, October 2010


Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector
journal, January 2018


Neutrino Self-Interactions and XENON1T Electron Recoil Excess
journal, October 2020


Sneutrino Dark Matter in Gauged Inverse Seesaw Models for Neutrinos
journal, February 2012


Electric But Not Eclectic: Thermal Relic Dark Matter for the XENON1T Excess
journal, October 2020


Boosted Dark Matter Interpretation of the XENON1T Excess
journal, October 2020


Dark Matter Search Results from a One Ton-Year Exposure of XENON1T
journal, September 2018


Search for new physics in the monophoton final state in proton-proton collisions at s = 13 $$ \sqrt{s}=13 $$ TeV
journal, October 2017

  • Sirunyan, A. M.; Tumasyan, A.; Adam, W.
  • Journal of High Energy Physics, Vol. 2017, Issue 10
  • DOI: 10.1007/JHEP10(2017)073

XENON1T Excess from Anomaly-Free Axionlike Dark Matter and Its Implications for Stellar Cooling Anomaly
journal, October 2020


How Magnetic is the Dirac Neutrino?
journal, October 2005


Inelastic dark matter electron scattering and the XENON1T excess
journal, October 2020


Pseudo-Dirac Dark Matter Leaves a Trace
journal, September 2010


Dark matter direct search sensitivity of the PandaX-4T experiment
journal, August 2018

  • Zhang, HongGuang; Abdukerim, Abdusalam; Chen, Wei
  • Science China Physics, Mechanics & Astronomy, Vol. 62, Issue 3
  • DOI: 10.1007/s11433-018-9259-0

X-ray line from exciting dark matter
journal, October 2016


Search for Light Dark Matter Interactions Enhanced by the Migdal Effect or Bremsstrahlung in XENON1T
journal, December 2019


Dark matter detection in two easy steps
journal, March 2014


Sneutrino cold dark matter, a new analysis: relic abundance and detection rates
journal, November 2007


Interpreting dark matter direct detection independently of the local velocity and density distribution
journal, February 2011


A model independent approach to inelastic dark matter scattering
journal, November 2014


Directly Detecting Sub-GeV Dark Matter with Electrons from Nuclear Scattering
journal, September 2018


Model independent bounds on magnetic moments of Majorana neutrinos
journal, November 2006


Status of inelastic dark matter
journal, September 2005


Limiting neutrino magnetic moments with Borexino Phase-II solar neutrino data
journal, November 2017


Dark-Matter Decay as a Complementary Probe of Multicomponent Dark Sectors
journal, February 2015


Dark sectors at the Fermilab SeaQuest experiment
journal, August 2018


Candidates for inelastic dark matter
journal, May 2009


Magnetic inelastic dark matter: Directional signals without a directional detector
journal, April 2011


Exciting dark matter and the INTEGRAL/SPI 511 keV signal
journal, October 2007


Inelastic dark matter in light of DAMA/LIBRA
journal, February 2009


Migdal effect and photon bremsstrahlung in effective field theories of dark matter direct detection and coherent elastic neutrino-nucleus scattering
journal, January 2020