Published November 1, 2018 | Version v1
Journal article

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/10.1088/1475-7516/2018/11/040

Additional details

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