Parameters in a Class of Leptophilic Dark Matter Models from PAMELA, ATIC and FERMI

Details Parameters in a Class of Leptophilic Dark Matter Models from PAMELA, ATIC and FERMI Parameters in a Class of Leptophilic Dark Matter Models from PAMELA, ATIC and FERMI

2009-03-02

arxiv.org/abs/0903.0122v2

Phys.Lett.B678:168-173,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex 15 pages with 5 figures. Modified to include discussions of recent Fermi data on the leptophilic models studied in this

Scientific paper

10.1016/j.physletb.2009.06.009

In this work we study a class of leptophilic dark matter models, where the dark matter interacts with the standard model particles via the $U(1)_{L_i-L_j}$ gauge boson, to explain the $e^{\pm}$ excess in cosmic rays observed by ATIC and PAMELA experiments, and more recently by Fermi experiment. There are three types of $U(1)_{L_i-L_j}$ models: a) $U(1)_{L_e - L_\mu}$, b) $U(1)_{L_e - L_{\tau}}$, and c) $U(1)_ {L_e-L_\tau}$. Although ATIC or Fermi data is consistent with PAMELA data separately, ATIC and Fermi data do not agree with each other. We therefore aim to identify which of the three models can explain which data set better. We find that models a) and b) can give correct dark matter relic density and explain the ATIC and PAMELA data simultaneously recur to the Breit-Wigner enhancement. Whereas model c) with a larger $Z^\prime$ mass can explain Fermi and PAMELA data simultaneously. In all cases the model parameters are restricted to narrow regions. Future improved data will decide which set of data are correct and also help to decide the correct dark matter model.

Affiliated with

Also associated with

No associations

Rating

Parameters in a Class of Leptophilic Dark Matter Models from PAMELA, ATIC and FERMI does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Parameters in a Class of Leptophilic Dark Matter Models from PAMELA, ATIC and FERMI, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parameters in a Class of Leptophilic Dark Matter Models from PAMELA, ATIC and FERMI will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-77301