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Parameters in a class of leptophilic dark matter models from PAMELA, ATIC and FERMI
Bi XJ(毕效军); Yuan Q(袁强); Bi, XJ; He, XG; Yuan, Q
2009
发表期刊PHYSICS LETTERS B
卷号678期号:2页码:#REF!
通讯作者He, XG (reprint author), Natl Taiwan Univ, Dept Phys, Ctr Theoret Sci, Taipei, Taiwan.
文章类型Article
摘要In this work we study a class of leptophilic dark matter models, where the dark matter interacts with the standard model particles via the U(1)L(i)-L(j) gauge boson, to explain the e(+/-) excess in cosmic rays observed by ATIC and PAMELA experiments, and more recently by Fermi experiment. There are three types of U(1)L(i)-L(j) models: (a) U(1)(Le-L mu) (b) U(1)(Le-L tau) and (c) U(1)(Le-L tau). Although ATIC or Fermi data are consistent with PAMELA data separately, ATIC and Fermi data do not agree with each other. We therefore aim to identify which of the three models can explain which data set better. We find that models (a) and (b) can give correct dark matter relic density and explain the ATIC and PAMELA data simultaneously recur to the Breit-Wigner enhancement. Whereas model (c) with a larger Z' mass can explain Fermi and PAMELA data simultaneously. In all cases the model parameters are restricted to narrow regions. Future improved data will decide which set of data is correct and also help to decide the correct dark matter model. (C) 2009 Elsevier B.V. All rights reserved.
学科领域Physics
DOI10.1016/j.physletb.2009.06.009
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000268210600003
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被引频次:56[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226644
专题粒子天体物理中心
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GB/T 7714
Bi XJ,Yuan Q,Bi, XJ,et al. Parameters in a class of leptophilic dark matter models from PAMELA, ATIC and FERMI[J]. PHYSICS LETTERS B,2009,678(2):#REF!.
APA 毕效军,袁强,Bi, XJ,He, XG,&Yuan, Q.(2009).Parameters in a class of leptophilic dark matter models from PAMELA, ATIC and FERMI.PHYSICS LETTERS B,678(2),#REF!.
MLA 毕效军,et al."Parameters in a class of leptophilic dark matter models from PAMELA, ATIC and FERMI".PHYSICS LETTERS B 678.2(2009):#REF!.
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