ANALYTICAL CALCULATION OF SMALL-ANGLE BHABHA CROSS-SECTION AT LEP1

Citation
Np. Merenkov et al., ANALYTICAL CALCULATION OF SMALL-ANGLE BHABHA CROSS-SECTION AT LEP1, ACT PHY P B, 28(3-4), 1997, pp. 491-507
Citations number
25
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
05874254 → ACNP
Volume
28
Issue
3-4
Year of publication
1997
Pages
491 - 507
Database
ISI
SICI code
0587-4254(1997)28:3-4<491:ACOSBC>2.0.ZU;2-C
Abstract
The analytical approach is applied for description of small angle Bhab ha scattering at LEP1. The QED correction to the Born cross-section is calculated with leading and next-to-leading accuracy in the second or der of the perturbation theory and with leading one in the third order . All contributions due to photos emission and pair production in the second order are calculated starting from essential Feynman diagrams. The third order corrections are computed by means of the electron stru cture function method. Inclusive and calorimeter event selections for asymmetrical wide-narrow circular detectors are investigated.