Virtual photon structure functions and the parton content of the electron

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.3124· OSTI ID:7142431

Drees, M ^[1]; Godbole, R M ^[2]

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1. Physics Department, University of Wisconsin, 1150 University Avenue, Madison, Wisconsin 53706 (United States)
2. Physics Department, Bombay University, Vidyanagari, Bombay 400098 (India)

We point out that in processes involving the parton content of the photon the usual effective photon approximation should be modified. The reason is that the parton content of virtual photons is logarithmically suppressed compared to real photons. We describe this suppression using several simple, physically motivated [ital Ansa]$[ital uml---tze]. Although the parton content of the electron in general no longer factorizes into an electron flux function and a photon structure function, it can still be expressed as a single integral. Numerical examples are given for the [ital e][sup +][ital e][sup [minus]] collider TRISTAN as well as the [ital ep] collider HERA.

• DOE Contract Number: AC02-76ER00881
• OSTI ID: 7142431
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:5; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230 -- Quantum Chromodynamics-- (1992-)
662310 -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
662330 -- Photon & Charged-Lepton Interactions with Hadrons-- (1992)
662440* -- Properties of Other Particles Including Hypothetical Particles-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
ELECTRON-NUCLEON INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELECTRON-PROTON INTERACTIONS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LEPTONS
MASSLESS PARTICLES
NUMERICAL SOLUTION
PARTICLE INTERACTIONS
PARTONS
PHOTONS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
STRUCTURE FUNCTIONS