Higher twist QCD terms in high-P/sub T/ pion production
Conference
·
· AIP Conf. Proc.; (United States)
OSTI ID:6382023
We investigate the higher twist subprocesses qG..-->..q..pi../sup + -/ and qq-bar..-->..G..pi../sup + -/ in the framework of perturbative Quantum Chromodynamics (QCD). Cross sections for these processes are compared with the minimum twist QCD results for qq-bar..-->..qq-bar and qG..-->..qG. The higher twist terms give sizeable corrections to the inclusive pion yields, particularly for qq-bar initial states. We also examine the effects of higher twist QCD terms for the charge ratio, N(..pi../sup -/N..--> pi../sup -/X)/ N(..pi../sup -/N..--> pi../sup +/X).
- Research Organization:
- High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439
- OSTI ID:
- 6382023
- Report Number(s):
- CONF-800724-
- Conference Information:
- Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 68:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BOSONS
CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
FIELD THEORIES
FORM FACTORS
FRAGMENTATION
FUNCTIONS
GLUONS
HADRON-HADRON INTERACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MESONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PERTURBATION THEORY
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK-ANTIQUARK INTERACTIONS
STRUCTURE FUNCTIONS
TRANSVERSE MOMENTUM
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BOSONS
CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
FIELD THEORIES
FORM FACTORS
FRAGMENTATION
FUNCTIONS
GLUONS
HADRON-HADRON INTERACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MESONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PERTURBATION THEORY
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK-ANTIQUARK INTERACTIONS
STRUCTURE FUNCTIONS
TRANSVERSE MOMENTUM