Is it possible to improve the eventrate for narrow resonances in SPEAR and PEP [electronic resource].
Published
Menlo Park, Calif. : Stanford Linear Accelerator Center, 1979. Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
The eventrate at narrow resonances, like the /psi//J and /Tau/ resonances, is not only determined by the luminosity of the e/sup +/ and e /sup /minus// storage ring but also by the energy spread in the beam due to synchrotron radiation. This energy spread is much larger than the width of the resonances. Therefore, if the energy spread could be reduced by a factor F the eventrate would increase by the same factor.