Enhancing Squark/Leptoquark Production by Increasing the HERA Beam Energies

The cross section for production of R-parity violating squarks (q̃) or leptoquarks (LQ) with masses above 200 GeV by positron-proton scattering at HERA can be substantially increased by a moderate increase of the beam energies. If, for example, the positron energy is raised from 27.5 to 32.5 GeV and the proton energy from 820 to 1000 GeV, the q̃/LQ production cross section for masses of 200 – 230 GeV increases by a factor of about 2–6 and the search range for q̃/LQ is extended by about 40 GeV to masses of 270 – 280 GeV. In this report event yields are presented for beam energies in the range Ee = 27.5–35 GeV and Ep = 820–1100 GeV. Also presented is the rate of background events expected from Standard Model neutral and charged current ep scattering.