University of Cambridge > Talks.cam > Wednesday HEP-GR Colloquium > The PAMELA positron anomaly: dark matter or a cosmic pevatron?

The PAMELA positron anomaly: dark matter or a cosmic pevatron?

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Baojiu Li.

Abstract: There has been considerable excitement generated by recent anomalies in galactic cosmic ray and gamma-ray observations, indicative of dark matter annihilation or decay. It is essential to have a reliable evaluation of the astrophysical background in order to evaluate such claims. I will focus on the PAMELA , Fermi and HESS data and discuss whether these can be accommodated in the ‘standard model’ of galactic cosmic ray origin and propagation or whether new physics is really needed.

(Refs: Phys.Rev.D80:123017,2009, Phys.Rev.Lett.103:081104,2009)

This talk is part of the Wednesday HEP-GR Colloquium series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2019 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity