Reconcile the AMS-02 positron fraction and Fermi-LAT/HESS total e(+/-) spectra by the primary electron spectrum hardening
Yuan Q(袁强);  Bi XJ(毕效军);  Yuan, Q; Bi, XJ
刊名PHYSICS LETTERS B
2013
卷号727期号:1-3页码:1-7
学科分类Physics
DOI10.1016/j.physletb.2013.10.010
英文摘要The recently reported positron fraction up to similar to 350 GeV by AMS-02 seems to have tension with the total electron/positron spectra detected by Fermi and HESS, for either pulsar or dark matter annihilation/decay scenario as the primary positron sources. In this work we will show that the tension will be removed by an adjustment of the primary electron spectrum. If the primary electron spectrum becomes harder above similar to 50 GeV, similar as the cosmic ray nuclei spectrum, the AMS-02 positron fraction and Fermi/HESS data can be well fitted by both the pulsar and dark matter models. This result may be suggestive of a common origin of the cosmic ray nuclei and the primary electrons. Furthermore, this study also implies that the properties of the extra sources derived from the fitting to the AMS-02 data should depend on the form of background. (C) 2013 Elsevier B.V. All rights reserved.
收录类别SCI
WOS记录号WOS:000328518400001
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被引频次:22[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/311005/223748
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
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袁强;毕效军;Yuan, Q,Bi, XJ. Reconcile the AMS-02 positron fraction and Fermi-LAT/HESS total e(+/-) spectra by the primary electron spectrum hardening[J]. PHYSICS LETTERS B,2013,727(1-3):1-7.
APA 袁强;毕效军;Yuan, Q,&Bi, XJ.(2013).Reconcile the AMS-02 positron fraction and Fermi-LAT/HESS total e(+/-) spectra by the primary electron spectrum hardening.PHYSICS LETTERS B,727(1-3),1-7.
MLA 袁强;毕效军;Yuan, Q,et al."Reconcile the AMS-02 positron fraction and Fermi-LAT/HESS total e(+/-) spectra by the primary electron spectrum hardening".PHYSICS LETTERS B 727.1-3(2013):1-7.
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