中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所2015年知识产出  > 期刊论文
题名: Natural X-ray lines from the low scale supersymmetry breaking
作者: Kang, ZF;  Ko, P;  Li, TJ;  Liu, YD
刊名: PHYSICS LETTERS B
出版日期: 2015
卷号: 742, 期号:0, 页码:249-255
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1016/j.physletb.2015.01.040
通讯作者: Kang, ZF (reprint author), Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.
文章类型: Article
英文摘要: In the supersymmetric models with low scale supersymmetry (SUSY) breaking where the gravitino mass is around keV, we show that the 3.5 keV X-ray lines can be explained naturally through several different mechanisms: (I) a keV scale dark gaugino plays the role of sterile neutrino in the presence of bilinear R-parity violation. Because the light dark gaugino obtains Majorana mass only via gravity mediation, it is a decaying warm dark matter (DM) candidate; (II) the compressed cold DM states, whose mass degeneracy is broken by gravity mediated SUSY breaking, emit such a line via the heavier one decay into the lighter one plus photon(s). A highly supersymmetric dark sector may readily provide such kind of system; (III) the light axino, whose mass again is around the gravitino mass, decays to neutrino plus gamma in the R-parity violating SUSY. Moreover, we comment on dark radiation from dark gaugino. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: COLD DARK-MATTER ;  GLOBAL SYMMETRIES
收录类别: SCI
项目资助者: China Postdoctoral Science Foundation [2013M530006] ;  National Research Foundation of Korea (NRF) Research Grant [2012R1A2A1A01006053] ;  MEST through Korea Neutrino Research Center at Seoul National University [20120001176] ;  National Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246] ;  National Basic Research Program of China (973 Program) [2010CB833000]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21064
Appears in Collections:理论物理所2015年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Natural X-ray lines from the low scale supersymmetry breaking.pdf(348KB)期刊论文出版稿开放获取View Download

Recommended Citation:
Kang, ZF,Ko, P,Li, TJ,et al. Natural X-ray lines from the low scale supersymmetry breaking[J]. PHYSICS LETTERS B,2015,742(0):249-255.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Kang, ZF]'s Articles
 [Ko, P]'s Articles
 [Li, TJ]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Kang, ZF]‘s Articles
 [Ko, P]‘s Articles
 [Li, TJ]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: Natural X-ray lines from the low scale supersymmetry breaking.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace