Atmospheric muon background in the ANTARES detector
  An evaluation of the background due to atmospheric muons in the ANTARES high energy neutrino telescope is presented. Two different codes for atmospheric shower simulation have been used. Results from comparisons between these codes at sea level and detector level are presented. The first results on the capability of ANTARES to reject this class of background are given. 
S. Cecchini, E. Korolkova, A. Margiotta, L. Thompson (for the ANTARES   Collaboration)