Hadronic processes after Fermi

After more than 4 years of data taking, the Fermi-LAT has collected many evidences of hadronic accelerations in some galactic sites. Among the most promising sources are the remnants of Supernovae explosions. A first tentative of cataloging the gamma GeV-TeV emission from Supernovae Remnants (SNRs) is in progress, in terms of efficiency of the process, maximum energy available and spectral features, in dependence of the age of the remnant and its environment. Using Kamae et al 2006 [1] parametrization we have interpreted the observed gamma-ray emission as originated in hadronic scenario, estimating the neutrino flux from the most promising SNRs is estimated. © 2013 Elsevier B.V