Longitudinal bunch rotation scheme in a muon cooling ring

We present an idea of achieving better longitudinal phase space cooling in a muon cooling ring with the RF cavity configuration which generate short bunch length and large energy spread at the energy absorbers in a low momentum muon cooling ring. In this scheme, the heating terms in the longitudinal phase space, the slope of the dE/dx as a function of muon momentum and the dE/dx straggling through absorbers, are relatively small compared to the energy spread of the muon beam in the absorber.