Inelastic dark matter scattering off Thallium cannot save DAMA
- Stockholm Univ. (Sweden)
- Stockholm Univ. (Sweden); KTH Royal Inst. of Technology, Stockholm (Sweden); Univ. of Texas, Austin, TX (United States)
- Univ. of North Florida, Jacksonville, FL (United States)
- Univ. of Utah, Salt Lake City, UT (United States)
- Stockholm Univ. (Sweden); Scuola Internazionale Superiore di Studi Avanzati (SISSA), Trieste (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Trieste (Italy); Institute for Fundamental Physics of the Universe (IFPU), Trieste (Italy)
We study the compatibility of the observed DAMA modulation signal with inelastic scattering of dark matter (DM) off of the 0.1% Thallium (Tl) dopant in DAMA. In this work we test whether there exist regions of parameter space where the Tl interpretation gives a good fit to the most recent data from DAMA, and whether these regions are compatible with the latest constraints from other direct detection experiments. Previously, Chang et al. in 2010, had proposed the Tl interpretation of the DAMA data, and more recently (in 2019) the DAMA/LIBRA collaboration found regions in parameter space of Tl inelastic scattering that differ by more than 10σ from a no modulation hypothesis. We have expanded upon their work by testing whether the regions of parameter space where inelastic DM-Tl scattering gives a good fit to the most recent DAMA data survive the constraints placed by the lack of a DM signal in XENON1T and CRESST-II. In addition, we have tested how these regions change with the main sources of uncertainty: the Tl quenching factor, which has never been measured directly, and the astrophysical uncertainties in the DM distribution. We conclude that inelastic DM scattering off Tl cannot explain the DAMA data in light of null results from other experiments.
- Research Organization:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Ministero dell’Istruzione, Università e della Ricerca (MIUR)
- Grant/Contract Number:
- SC0007859; PHY-1720282
- OSTI ID:
- 1831081
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2021, Issue 10; ISSN 1475-7516
- Publisher:
- Institute of Physics (IOP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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