English

Enhancing Squark/Leptoquark Production by Increasing the HERA Beam Energies

High Energy Physics - Experiment 2007-05-23 v3

Abstract

The cross section for production of R-parity violating squarks (q~\tilde{q}) or leptoquarks (LQLQ) 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 q~/LQ\tilde{q}/LQ production cross section for masses of 200 - 230 GeV increases by a factor of about 2-6 and the search range for q~/LQ\tilde{q}/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=27.535GeVE_e = 27.5-35 GeV and Ep=8201100GeVE_p = 820-1100 GeV. Also presented is the rate of background events expected from Standard Model neutral and charged current e±pe^{\pm}p scattering.

Keywords

Cite

@article{arxiv.hep-ex/9809027,
  title  = {Enhancing Squark/Leptoquark Production by Increasing the HERA Beam Energies},
  author = {Michiel Botje and Guenter Wolf},
  journal= {arXiv preprint arXiv:hep-ex/9809027},
  year   = {2007}
}

Comments

21 pages including 4 tables, 12 figures; a reference was added to NLO LQ cross section calculations (sect. 4)