Analytical results for low-angle Bhabha scattering with pair production

Journal Article · Sat May 01 00:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.47.3733· OSTI ID:6612872

Jadach, S ^[1]; Skrzypek, M ^[2]; Ward, B F.L. ^[3]

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1. University of Tennessee, Knoxville, Tennessee 37996-1200 (United States) TH Division, CERN, Geneva 23 (Switzerland)
2. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200 (United States) Institute of Nuclear Physics, ul. Kawiory 26a, Krakow (Poland)
3. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200 (United States) TH Division, CERN, Geneva 23 (Switzerland) Stanford Linear Accelerator Center (SLAC), Stanford University, Stanford, California 94309 (United States)

We calculate the effect of pair production on the luminosity process of low-angle Bhabha scattering at the SLAC Linear Collider (SLC) and/or CERN [ital e][sup +][ital e[minus]] collider LEP. We work in the leading-logarithm approximation to orders [alpha][sup 2] and [alpha][sup 3] for the nonsinglet and the singlet contributions, respectively. In particular we calculate the size of singlet contribution to be below 0.007% for the energy cuts [ital x][sub [ital c]][gt]0.1, as was estimated by Jadach and co-workers. In this way, we remove the contribution of such pairs from the theoretical uncertainty in the SLC/LEP luminosity calculation of Jadach and co-workers via the Monte Carlo BHLUMI 2.01 at the precision level of 0.01%. Results are illustrated for typical SLC-LEP acceptance cuts.

• DOE Contract Number: FG05-91ER40627; AC03-76SF00515
• OSTI ID: 6612872
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:9; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662310* -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAM LUMINOSITY
BHABHA SCATTERING
CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON-POSITRON INTERACTIONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
SCATTERING
SMALL ANGLE SCATTERING