Breakdown of conventional factorization for isolated photon cross sections

Journal Article · Thu Feb 29 23:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2234· OSTI ID:286148

Berger, E L; Guo, X; Qiu, J ^[1]

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1. High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Using {ital e}{sup +}{ital e}{sup {minus}}{r_arrow}{gamma}+{ital X} as an example, we show that the conventional factorization theorem in perturbative quantum chromodynamics breaks down for isolated photon cross sections in a well-defined part of phase space. Implications and physical consequences are discussed. {copyright} {ital 1996 The American Physical Society.}

• DOE Contract Number: FG02-92ER40731; FG02-92ER40730; W-31109-ENG-38
• OSTI ID: 286148
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BREAKDOWN
CROSS SECTIONS
ELECTRON-POSITRON INTERACTIONS
FACTORIZATION
PERTURBATION THEORY
PHASE SPACE
PHOTONS
QUANTUM CHROMODYNAMICS