!      muon               Jx              Jy               x              xp               y              yp          vec(5)              pz               t               s             s_x             s_y             s_z             tau                   BetaCrossE                        BCrossETime                        BetaDotB                       frequency             <x>            <xp>             <y>            <yp>             <z>            <dp>        lifetime                         B_field           state           decay