Anapole dark matter after DAMA/LIBRA-phase2
- 1. Department of Physics, Sogang University, Seoul 121-742 (Korea, Republic of)
- 2. Department of Physics, University of Utah, 115 South 1400 East #201, Salt Lake City, Utah 84112-0830 (United States)
Description
We re-examine the case of anapole dark matter as an explanation for the DAMA annual modulation in light of the DAMA/LIBRA-phase2 results and improved upper limits from other DM searches. If the WIMP velocity distribution is assumed to be a Maxwellian, anapole dark matter is unable to provide an explanation of the DAMA modulation compatible with the other searches. Nevertheless, anapole dark matter provides a better fit to the DAMA-phase2 modulation data than an isoscalar spin-independent interaction, due to its magnetic coupling with sodium targets. A halo-independent analysis shows that explaining the DAMA modulation above 2 keVee in terms of anapole dark matter is basically impossible in face of the other null results, while the DAMA/LIBRA-phase2 modulation measurements below 2 keVee are marginally allowed. We conclude that in light of current measurements, anapole dark matter does not seem to be a viable explanation for the totality of the DAMA modulation.
Availability note (English)
Available from http://dx.doi.org/10.1088/1475-7516/2018/11/040Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Cosmology and Astroparticle Physics
- Journal Volume
- 2018
- Journal Issue
- 11
- Journal Page Range
- p. 040
- ISSN
- 1475-7516
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 51057547
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BOLTZMANN STATISTICS; INTERACTIONS; MODULATION; NONLUMINOUS MATTER; SODIUM; SPIN; TARGETS; VELOCITY; WIMPS
- Descriptors DEC
- ALKALI METALS; ANGULAR MOMENTUM; ELEMENTARY PARTICLES; ELEMENTS; MATTER; METALS; PARTICLE PROPERTIES; POSTULATED PARTICLES