PEP-N: a 0.8 GeV /spl times/ 3.1 GeV collider at SLAC

The PEP-N project is a proposed new e/sup +/e/sup -/ collider at SLAC to operate in the center of mass energy range of 1.0 GeV to 3.1 GeV. PEP-N consists of a new very low energy electron ring VLER (<800 MeV) to collide with the PEP-II e/sup +/ low energy ring LER (3.1 GeV) parasitically to PEP-II operation for BaBar. Since the e/sup +/ ring has a fixed energy, the very low energy ring needs an energy range of 100 MeV to 800 MeV. This collider would likely be placed in Experimental Hall 12 of the PEP-II complex and have its own dedicated 800 MeV e/sup -/ injector. The peak luminosity should reach 2 /spl times/ 10/sup 31//cm/sup 2//s.