Long-range Self-interacting Dark Matter in the Sun

被引：19

作者：

Chen, Jing ^{[1
,2
]}

Liang, Zheng-Liang ^{[3
]}

Wu, Yue-Liang ^{[2
]}

Zhou, Yu-Feng ^{[2
]}

机构：

[1] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2015年 / 12期

关键词：

dark matter theory; dark matter experiments; ENERGY-TRANSPORT; PARTICLES; ANNIHILATION; SOLAR; EVAPORATION; ABUNDANCES; NEUTRINOS;

D O I：

10.1088/1475-7516/2015/12/021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the implications of the long-rang self-interaction on both the self-capture and the annihilation of the self-interacting dark matter (SIDM) trapped in the Sun. Our discussion is based on a specific SIDM model in which DM particles self-interact via a light scalar mediator, or Yukawa potential, in the context of quantum mechanics. Within this framework, we calculate the self-capture rate across a broad region of parameter space. While the self-capture rate can be obtained separately in the Born regime with perturbative method, and in the classical limits with the Rutherford formula, our calculation covers the gap between in a non-perturbative fashion. Besides, the phenomenology of both the Sommerfeld-enhanced s- and p-wave annihilation of the solar SIDM is also involved in our discussion. Moreover, by combining the analysis of the Super-Kamiokande (SK) data and the observed DM relic density, we constrain the nuclear capture rate of the DM particles in the presence of the dark Yukawa potential. The consequence of the long-range dark force on probing the solar SIDM turns out to be significant if the force-carrier is much lighter than the DM particle, and a quantitative analysis is provided.

引用

页数：24

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