Dark matter annihilation effects on the CMB anisotropy

Masahiro Kawasaki, Kazunori Nakayama

Research output: Contribution to conferencePaperpeer-review

Abstract

We study the effects of dark matter annihilation during and after the cosmic recombination epoch on the cosmic microwave background anisotropy, taking into account the detailed energy deposition of the annihilation products. It is found that a fairly stringent constraint on the annihilation cross section is imposed for TeV scale dark matter masses from WMAP observations.

Original languageEnglish
Pages251-253
Number of pages3
Publication statusPublished - 2009
Event19th Workshop on General Relativity and Gravitation in Japan, JGRG 2009 - Tokyo, Japan
Duration: 2009 Nov 302009 Dec 4

Conference

Conference19th Workshop on General Relativity and Gravitation in Japan, JGRG 2009
Country/TerritoryJapan
CityTokyo
Period09/11/3009/12/4

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