Total hadronic cross section in e sup + e sup minus annihilation at the four-loop level of perturbative QCD

Journal Article · Mon Feb 04 04:00:00 EST 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.560· OSTI ID:5796326

Surguladze, L R ^[1]; Samuel, M A ^[2]

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1. Institute for Nuclear Research of the USSR, Academy of Sciences, Moscow (USSR) Tbilisi State University, Tbilisi, Georgia (USSR). Department of High Energy Physics
2. Oklahoma State University, Stillwater, OK (USA). Department of Physics

The ratio {ital R}({ital S})={sigma}{sub tot}({ital e}{sup +}{ital e} {sup {minus}}{r arrow}hadrons)/{sigma}({ital e}{sup +}{ital e}{sup {minus}}{r arrow}{mu}{sup +}{mu}{sup {minus}}) is calculated to the four-loop level in perturbative QCD. The result differs from a previous calculation and is much smaller. In addition, a new result for the four-loop {beta} function in QED is obtained. This result also disagrees with a previous calculation.

• DOE Contract Number: FG05-85ER40215
• OSTI ID: 5796326
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:5; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645202 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
COUPLING CONSTANTS
CROSS SECTIONS
DISPERSIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
FIELD THEORIES
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
RENORMALIZATION
TOTAL CROSS SECTIONS