NUNUGPV — A Monte Carlo event generator for e+e− → v v ̄ γ(γ) events at LEP

Published: 01-01-1996| Version 1 | DOI: 10.17632/tcxb9g78rw.1
Guido Montagna,
Oreste Nicrosini,
Fulvio Piccinini


Abstract The Monte Carlo program NUNUGPV, designed for computing distributions and generating events for the reaction e^+ e^-→ vvγ(γ), is described. The lowest-order spectrum of the hard-scattering photon includes the contribution from both Z and W exchange within the electroweak theory and is convoluted with p_1 -dependent QED structure functions in order to explicitly generate the transverse degrees of freedom of the additional photons emitted by the colliding particles. The code is designed for a... Title of program: NUNUGPV Catalogue Id: ADDX_v1_0 Nature of problem The radiative neutrino counting and, more in general, the reactions with a single-photon signature, provide a very useful tool for measuring the number of light neutrinos and eventually detecting new-physics signals at the LEP collider [2]. Within the Standard Model (SM), the bulk of the contribution to single-photon events at LEP comes from the production of a neutrino-antineutrino pair accompanied by a large-angle energetic photon, i.e. from the reaction e+e- -> nu nubar gamma. This process ha ... Versions of this program held in the CPC repository in Mendeley Data ADDX_v1_0; NUNUGPV; 10.1016/0010-4655(96)00081-1 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)