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题名: Implications of the latest XENON100 and cosmic ray antiproton data for isospin-violating dark matter
作者: Jin, HB ;  Miao, S ;  Zhou, YF
刊名: PHYSICAL REVIEW D
出版日期: 2013
卷号: 87, 期号:1, 页码:16012
关键词: PROPAGATION ;  CONSTRAINTS ;  DAMA/LIBRA ;  TRANSPORT ;  NUCLEI ;  MODELS ;  GALAXY
学科分类: Physics
通讯作者: Jin, HB (reprint author), Chinese Acad Sci, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
部门归属: [Jin, Hong-Bo] Chinese Acad Sci, Kavli Inst Theoret Phys China, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: In the scenario of isospin-violating dark matter (IVDM), the dark matter (DM) spin-independent couplings to protons and to neutrons are allowed to be different, which has been considered to relax the tensions between the results of DAMA, CoGeNT and XENON experiments. We explore the allowed values of DM-nucleon couplings favored and excluded by the current experiments under the assumption of IVDM. We find that the recently updated XENON100 result excludes the main part of the overlapping signal region between DAMA and CoGeNT. We also show that the possible tensions between some experiments such as those between DAMA and SIMPLE are unlikely to be affected by isospin-violating interactions. In an effective operator approach, we investigate conservative upper bounds on the DM-quark couplings required by the IVDM scenario from the cosmic ray antiproton fluxes measured recently by BESS-Polar II and PAMELA and that from the relic density. The results show that the relatively large couplings favored by DAMA and CoGeNT are tightly constrained, if the operators contribute to velocity-independent annihilation cross sections. For thermal relic DM, the upper bounds from the relic density can also be stringent. DOI: 10.1103/PhysRevD.87.016012
资助者: National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Project of Knowledge Innovation Program (PKIP) of the Chinese Academy of Science
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000313945300011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15435
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Recommended Citation:
Jin, HB,Miao, S,Zhou, YF. Implications of the latest XENON100 and cosmic ray antiproton data for isospin-violating dark matter[J]. PHYSICAL REVIEW D,2013,87(1):16012.
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