Origins of the isospin violation of dark matter interactions

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	Origins of the isospin violation of dark matter interactions
	Li, TJ
刊名	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
	2013
期号	1 页码:21
关键词	MODELS
ISSN号	1475-7516
通讯作者	Gao, X (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
英文摘要	Light dark matter (DM) with a large DM-nucleon spin-independent scattering cross section and moreover proper isospin violation (ISV) f(n)/f(p) approximate to -0.7 may provide a way to understand the confusing DM.)M direct detection results. Further using the stringent astrophysical and collider constraints, we systematically investigate the origin of ISV,T first via general operator analyses and further via specifying three types of mediators: a light Z ' from chiral U(1)(x), an approximate spectator Higgs doublet (It can explain the W + jj anomaly simultaneously) and color triplets. In addition, although Z' from an exotic U(1)(x) mixing with U(1)(Y) generates only f(n) = 0, we can combine it with the conventional to achieve the proper ISV. As a concrete example, we propose the U(1)(x) model where the U(1)(x) charged light sneutrino is an inelastic DM, which dominantly annihilates to light dark states such as Z' with sub-GeV mass. The model can consistently (with other DM direct detection results) and safely interpret the recent GoGeNT annual modulation result.
学科主题	Physics
收录类别	SCI
资助信息	DOE [DE-FG03-95-Er-40917]; Natural Science Foundation of China [10821504, 11075194]
原文出处	http://dx.doi.org/10.1088/1475-7516/2013/01/021
语种	英语
WOS记录号	WOS:000314665600021
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15455]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Li, TJ. Origins of the isospin violation of dark matter interactions[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2013(1):21.
APA	Li, TJ.(2013).Origins of the isospin violation of dark matter interactions.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(1),21.
MLA	Li, TJ."Origins of the isospin violation of dark matter interactions".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .1(2013):21.