Higher-twist contributions, quantum chromodynamics, and inclusive meson photoproduction at high p/sub T/

Journal Article · Sat May 01 04:00:00 EDT 1982 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.25.2287· OSTI ID:5231198

Bagger, J A; Gunion, J F

We investigate higher-twist contributions to inclusive meson photoproduction in the context of perturbative QCD, demonstrating that the higher-twist subprocess ..gamma..q..-->..Mq contributes significantly to the inclusive cross section at large transverse momenta. The normalization of the subprocess is determined entirely by the meson electromagnetic form factor. We show that higher-twist effects are especially dramatic for rho production.

• Research Organization: Department of Physics, Princeton University, Princeton, New Jersey 08544
• OSTI ID: 5231198
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 25:9; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
CROSS SECTIONS
ELECTROMAGNETIC FORM FACTORS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
FORM FACTORS
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MESONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PERTURBATION THEORY
PHOTOPRODUCTION
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
TRANSVERSE MOMENTUM