Hints of a charge asymmetry in the electron and positron cosmic-ray excesses

被引：9
|
作者：
Masina, Isabella [1 ,2 ,3 ,4 ]
Sannino, Francesco [3 ,4 ]
机构：
[1] Univ Ferrara, Dipartimento Fis & Sci Terra, I-44122 Ferrara, Italy
[2] INFN, I-44122 Ferrara, Italy
[3] Southern Denmark Univ, Origins CP3, DK-5230 Odense M, Denmark
[4] Southern Denmark Univ, DIAS, DK-5230 Odense M, Denmark
来源：
PHYSICAL REVIEW D | 2013年 / 87卷 / 12期
基金：
新加坡国家研究基金会;
关键词：
SPECTRUM; ENERGIES;
D O I：
10.1103/PhysRevD.87.123003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
By combining the recent data from AMS-02 with those from Fermi-LAT, we show the emergence of a charge asymmetry in the electron and positron cosmic-ray excesses, slightly favoring the electron component. Astrophysical and dark matter inspired models introduced to explain the observed excesses can be classified according to their prediction for the charge asymmetry and its energy dependence. Future data confirming the presence of a charge asymmetry would imply that an asymmetric production mechanism is at play.
引用
收藏
页数：7
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