Supersymmetric U(1)B x U(1)L model with leptophilic and leptophobic cold dark matters

被引：42

作者：

Ko, P. ^{[1
]}

Omura, Y. ^{[1
]}

机构：

[1] KIAS, Sch Phys, Seoul 130722, South Korea

来源：

PHYSICS LETTERS B | 2011年 / 701卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Supersymmetry; Dark matters; Leptophobic Z '; Leptophilic Z '; DAMA/CoGeNT; PAMELA;

D O I：

10.1016/j.physletb.2011.06.009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider a supersymmetric model with extra U(1)(B) x U(1)(L) gauge symmetry that is broken spontaneously. Salient features of this model are that there are three different types of cold dark matter (CDM) candidates, and neutral scalar sector has a rich structure. Light CDM with sigma(Sl) similar to 10(-3+/-1) pb can be easily accommodated by leptophobic dark matter (chi(B)) with correct relic density, if the U(1)(B) gauge boson mass is around 2m(chi B). Also the PAMELA and Fermi/EAT data can be fit by leptophilic CDM with mass similar to 1 TeV. There could be interesting signatures of new fermions and new gauge bosons at the LHC. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：363 / 366

页数：4

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