Cosmic e(+/-)s, (p)over-bars, gamma s, and neutrinos in leptocentric dark matter models
文献类型：期刊论文
| 作者 | Bi XJ(毕效军) ; Bi, XJ; He, XG; Ma, E; Zhang, J; Zhang J(张娟)
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2010 |
| 卷号 | 81期号:6页码:63522 |
| 通讯作者 | [Bi, Xiao-Jun ; He, Xiao-Gang] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China ; [Bi, Xiao-Jun ; Zhang, Juan] Chinese Acad Sci, Lab Particle Astrophys, Inst High Energy Phys, Beijing 100049, Peoples R China ; [He, Xiao-Gang] Natl Taiwan Univ, Dept Phys, Ctr Theoret Sci, Taipei, Taiwan ; [He, Xiao-Gang] Natl Taiwan Univ, LeCospa Ctr, Taipei, Taiwan ; [Ma, Ernest] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA |
| 英文摘要 | Dark matter annihilation is one of the leading explanations for recent cosmic e(+/-) excess observations by PAMELA, ATIC, FERMI-LAT, and H. E. S. S. Any dark matter annihilation model proposed to explain these data has to comply with the fact that PAMELA data show excesses only in e(+/-) spectrum but not in antiprotons. It is interesting to ask whether the annihilation mode into antiprotons is completely disallowed or just suppressed at low energies. Most proposed models have negligible antiprotons in all energy ranges. In this work we investigate the leptocentric U(1)(B-3Li) dark matter model, and show that this model can explain the e(+/-) excesses with suppressed antiproton mode at low energies. But at higher energies there are sizable antiproton excesses. Near future data from PAMELA and AMS02 can provide crucial tests for this type of model. Cosmic gamma ray data can further rule out some of the models. We also show that this model has interesting neutrino signatures. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000276195700039 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240725]  |
| 专题 | 高能物理研究所_粒子天体物理中心 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Bi XJ,Bi, XJ,He, XG,et al. Cosmic e(+/-)s, (p)over-bars, gamma s, and neutrinos in leptocentric dark matter models[J]. PHYSICAL REVIEW D,2010,81(6):63522. |
| APA | 毕效军,Bi, XJ,He, XG,Ma, E,Zhang, J,&张娟.(2010).Cosmic e(+/-)s, (p)over-bars, gamma s, and neutrinos in leptocentric dark matter models.PHYSICAL REVIEW D,81(6),63522. |
| MLA | 毕效军,et al."Cosmic e(+/-)s, (p)over-bars, gamma s, and neutrinos in leptocentric dark matter models".PHYSICAL REVIEW D 81.6(2010):63522. |
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来源：高能物理研究所
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