Double equivalent-photon approximation including radiative corrections for photon-photon collision experiments without electron tagging

Journal Article · Sun Feb 01 04:00:00 EST 1981 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.23.663· OSTI ID:6635037

Defrise, M; Ong, S; Silva, J; Carimalo, C

It is shown that, in first approximation, radiative corrections in photon-photon collision experiments without electron tagging can be estimated by using a double equivalent-photon approximation of the same type as (but, of course, analytically much more complicated than) that used for computation of ..gamma gamma.. cross sections without radiative corrections. It is obvious that, in such an approximation, radiative corrections: for a given beam energy E/sub 0/ and a given invariant mass M produced: become independent of the specific process ..gamma gamma -->..X considered. The invariant-mass spectrum, corrected for radiation, will be written in the general form dsigma/sup corr//dM1+=(delta)dsigma/sup 0//dM where dsigma/sup 0//dM is the uncorrected spectrum. Values obtained for delta at typical beam energies E/sub 0/=1.5, 3, 15, and 70 GeV, and for M/E/sub 0/ ranging between 0.1 and 0.6, are systematically of the order of less than +- 1%.

• Research Organization: Laboratorium voor Theoretische Natuurkunde, Vrije Universiteit Brussel, Brussels, Belgium
• OSTI ID: 6635037
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 23:3; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BASIC INTERACTIONS
CORRECTIONS
CROSS SECTIONS
DISTRIBUTION
ELECTROMAGNETIC INTERACTIONS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 01-10
GEV RANGE 10-100
INTERACTIONS
LEPTONS
MASS RENORMALIZATION
MASS SPECTRA
PARTICLE INTERACTIONS
PHOTON-PHOTON INTERACTIONS
RADIATIVE CORRECTIONS
RENORMALIZATION
SPECTRA