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Title: Complementary test of the dark matter self-interaction in dark U(1) model by direct and indirect dark matter detection

Journal Article · · Journal of Cosmology and Astroparticle Physics
 [1]; ;  [2]
  1. Physics Division, National Center for Theoretical Sciences, No. 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan, 30010 R.O.C. (China)
  2. Institute of Physics, National Chiao Tung University,1001 University Road, Hsinchu, Taiwan, 300 R.O.C. (China)

The halo dark matter (DM) can be captured by the Sun if its final velocity after the collision with a nucleus in the Sun is less than the escape velocity. We consider a selfinteracting dark matter (SIDM) model where U(1) gauge symmetry is introduced to account for the DM self-interaction. Such a model naturally leads to isospin violating DM-nucleon interaction, although isospin symmetric interaction is still allowed as a special case. We present the IceCube-PINGU 2σ sensitivity to the parameter range of the above model with 5 years of search for neutrino signature from DM annihilation in the Sun. This indirect detection complements the direct detection by probing those SIDM parameter ranges which are either the region for very small m{sub χ} or the region opened up due to isospin violations.

Sponsoring Organization:
SCOAP3, CERN, Geneva (Switzerland)
OSTI ID:
22458424
Journal Information:
Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 01; Other Information: PUBLISHER-ID: JCAP01(2016)013; OAI: oai:repo.scoap3.org:13349; Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
Country of Publication:
United States
Language:
English