Large-angle Bhabha scattering and luminosity at Daphne

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dc.creatorCalame, C. M. Carloni
dc.creatorLunardini, C.
dc.creatorMontagna, G.
dc.creatorNicrosini, O.
dc.creatorPiccinini, F.
dc.date2000-01-14
dc.date.accessioned2026-07-07T03:40:33Z
dc.date.available2026-07-07T03:40:33Z
dc.descriptionThe accurate knowledge of luminosity at e^+ e^- flavour factories requires the precision calculation of the Bhabha cross section at large scattering angles. In order to achieve a theoretical accuracy at the 0.1% level, the relevant effect of QED radiative corrections is taken into account in the framework of the Parton Shower method, which allows exclusive event generation. On this scheme, a Monte Carlo event generator (BABAYAGA) is developed for data analysis. To test the reliability of the approach, a benchmark calculation, including exact O(alpha) corrections and higher-order leading logarithmic contributions, is developed as well, implemented in a Monte Carlo integrator (LABSPV) and compared in detail with the BABAYAGA predictions. The effect of initial-state and final-state radiation, O(alpha) next-to-leading and higher-order leading corrections is investigated and discussed in the presence of realistic event selections. The theoretical precision of BABAYAGA is estimated to be at the 0.5% level.
dc.description8 pages, LaTeX, 4 eps figures. Contribution to the proceedings of the Workshop on Physics and Detectors for DAPHNE, Frascati, November 16-19, 1999
dc.identifierhttps://arxiv.org/abs/hep-ph/0001131
dc.identifierhttp://arxiv.org/abs/hep-ph/0001131
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/39307
dc.subjectHigh Energy Physics - Phenomenology
dc.titleLarge-angle Bhabha scattering and luminosity at Daphne
dc.typetext

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