Leptophilic dark matter confronts AMS-02 cosmic-ray positron flux

Qing Hong Cao, Chuan Ren Chen*, Ti Gong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


With the measurement of positron flux published recently by AMS-02 collaboration, we show how the leptophilic dark matter fits the observation. We obtain the percentages of different products of dark matter annihilation that can best describe the flux of high energy positrons observed by AMS. We show that dark matter annihilates predominantly into ττ pair, while both ee and μμ final states should be less than 20%. When gauge boson final states are included, the best branching ratio of needed ττ mode reduces.

Original languageEnglish
Pages (from-to)10-15
Number of pages6
JournalChinese Journal of Physics
Issue number1
Publication statusPublished - 2017 Feb 1

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Leptophilic dark matter confronts AMS-02 cosmic-ray positron flux'. Together they form a unique fingerprint.

Cite this