First direct detection constraint on mirror dark matter kinetic mixing using LUX 2013 data
We present the results of a direct detection search for mirror dark matter interactions, using data collected from the Large Underground Xenon experiment during 2013, with an exposure of 95 live-days $$\times$$ 118 kg. Here, the calculations of the mirror electron scattering rate in liquid xenon take into account the shielding effects from mirror dark matter captured within the Earth. Annual and diurnal modulation of the dark matter flux and atomic shell effects in xenon are also accounted for. Having found no evidence for an electron recoil signal induced by mirror dark matter interactions we place an upper limit on the kinetic mixing parameter over a range of local mirror electron temperatures between 0.1 and 0.6 keV. This limit shows significant improvement over the previous experimental constraint from orthopositronium decays and significantly reduces the allowed parameter space for the model. We exclude mirror electron temperatures above 0.3 keV at a 90% confidence level, for this model, and constrain the kinetic mixing below this temperature.
- Research Organization:
- Brown Univ., Providence, RI (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); State Univ. of New York (SUNY), Albany, NY (United States); Univ. of Maryland, College Park, MD (United States); University of Rochester, NY (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Contributing Organization:
- LUX Collaboration
- Grant/Contract Number:
- AC02-05CH11231; AC02-76SF00515; AC05-06OR23100; AC52-07NA27344; FG02-08ER41549; FG02-91ER40674; FG02-91ER40688; FG02-95ER40917; NA0000979; SC0006605; SC0008475; SC0010010; SC0010072; SC0015535; SC0019066
- OSTI ID:
- 1581039
- Report Number(s):
- LLNL-JRNL-834143; 012003
- Journal Information:
- Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 1 Vol. 101; ISSN PRVDAQ; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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