Decaying Asymmetric Dark Matter Relaxes the AMS-Fermi Tension
  The first result of AMS-02 confirms the positron fraction excess observed by
PAMELA, but the spectrum is somewhat softer than that of PAMELA. In the dark
matter (DM) interpretation it brings a tension between AMS-02 and Fermi-LAT,
which reported an excess of the electron plus positron flux. In this work we
point out that the asymmetric cosmic ray from asymmetric dark matter (ADM)
decay relaxes the tension. It is found that in the case of two-body decay a
bosonic ADM around 2.4 TeV and decaying into $\mu^-\tau^+$ can significantly
improve the fits. Based on the $R-$parity-violating supersymmetry with
operators $LLE^c$, we propose a minimal model to realize that ADM. The model
introduces only a pair of singlets $(X,\bar X)$ with a tiny coupling $LH_uX$,
which makes the ADM share the lepton asymmetry and decay into $\mu^-\tau^+$
along the operator $LLE^c$.
