Double transverse spin asymmetry in the p↑p↑ Drell-Yan process from Sivers functions
Creators
- 1. Center of Subatomic Studies and Departamento de Fisica, Universidad Tecnica Federico Santa Maria, Casilla 110-V, Valparaiso (Chile)
- 2. School of Physics and MOE Key Laboratory of Heavy Ion Physics, Peking University, Beijing 100871 (China)
Description
We show that the transverse double spin asymmetry in the Drell-Yan process contributed only from the Sivers functions can be picked out by the weighting function (QT/M2)(cos(φ-φS1)cos(φ-φS2)+3sin(φ-φS1)sin = (φ-φS2)). The asymmetry is proportional to the product of two Sivers functions from each hadron f1Tperpendicular(1)xf1Tperpendicular(1). Using two sets of Sivers functions extracted from the semi-inclusive deeply elastic scattering data at HERMES, we estimate this asymmetry in the p↑p↑ Drell-Yan process which is possible to be performed in high energy storage ring at GSI. The prediction of double spin asymmetry in the Drell-Yan process contributed by the function g1T(x,kT2), which can be extracted by the weighting function (QT/M2)(3cos(φ-φS1)cos(φ-φS2)+sin(φ-φS1)sin = (φ-φS2)), is also given at GSI
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.75.094012;
- arXiv
- arXiv:0704.2292v1;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 75
- Journal Issue
- 9
- Journal Page Range
- p. 094012-094012.6
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39042283
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ASYMMETRY; DRELL MODEL; ELASTIC SCATTERING; HADRONS; POLARIZED BEAMS; POLARIZED TARGETS; PROTON-PROTON INTERACTIONS; SEMI-INCLUSIVE INTERACTIONS; SPIN; T QUARKS; WEIGHTING FUNCTIONS
- Descriptors DEC
- ANGULAR MOMENTUM; BARYON-BARYON INTERACTIONS; BEAMS; ELEMENTARY PARTICLES; FERMIONS; FUNCTIONS; HADRON-HADRON INTERACTIONS; INCLUSIVE INTERACTIONS; INTERACTIONS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; POSTULATED PARTICLES; PROTON-NUCLEON INTERACTIONS; QUARKS; SCATTERING; TARGETS; TOP PARTICLES
Optional Information
- Notes
- (c) 2007 The American Physical Society