TWOGEN—a simple Monte Carlo generator for two-photon reactions

✍ Scribed by A. Buijs; W.G.J. Langeveld; M.H. Lehto; D.J. Miller

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 531 KB
• Volume: 79
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/0010-4655(94)90191-0

✦ Synopsis

TWOGEN samples the transverse-transverse luminosity function for real and virtual photons, then weights events with any user-supplied cross section -~.(-yy -a X) in a "hit or miss" sampling, using a simple method to avoid the singularity at the minimum electron angle 8mjfl = 0. Events within defined kinematic limits are accepted and the corresponding cross section is estimated, together with the effective luminosity of the run. Functions implemented for 0~-r include the production cross sections for lepton pairs, for the formation of narrow resonances and for hadron production in tagged, deep inelastic scattering. A comparison is made with an existing Monte Carlo generator and a simple analytic approximation.