Published October 21, 1991
| Version v1
Journal article
Single transverse spin asymmetries
Creators
- 1. Department of Physics and Astronomy, Iowa State University, Ames, Iowa (USA)
- 2. Institute for Theoretical Physics, State University of New York, Stony Brook, New York (USA)
Description
Using generalized factorization theorems, we calculate the leading single transverse spin asymmetry for high transverse-momentum direct-photon production in pp collisions, in terms of partonic matrix elements. The leading contribution comes from a ''twist-3'' parton distribution, involving the correlation between quark fields and the gluonic field strength. With simple assumptions for this matrix element, the asymmetry increases with xF, naturally giving effects of 10% or more at large xF
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 67
- Journal Issue
- 17
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 2264-2267
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 23009618
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- GEV RANGE 10-100; MATRIX ELEMENTS; PARTICLE PRODUCTION; PARTON MODEL; PERTURBATION THEORY; PHOTONS; POLARIZATION; PROTON-PROTON INTERACTIONS; QUANTUM CHROMODYNAMICS
- Descriptors DEC
- BARYON-BARYON INTERACTIONS; BOSONS; COMPOSITE MODELS; ELEMENTARY PARTICLES; ENERGY RANGE; FIELD THEORIES; GEV RANGE; HADRON-HADRON INTERACTIONS; INTERACTIONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PROTON-NUCLEON INTERACTIONS; QUANTUM FIELD THEORY