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Title: Process dependent Sivers function and implication for single spin asymmetry in inclusive hadron production

Abstract

We study the single transverse spin asymmetries in the single inclusive particle production within the framework of the generalized parton model (GPM). By carefully analyzing the initial- and final-state interactions, we include the process-dependence of the Sivers functions into the GPM formalism. The modified GPM formalism has a close connection with the collinear twist-3 approach. Within the new formalism, we make predictions for inclusive {pi}{sup 0} and direct photon productions at RHIC energies. We find the predictions are opposite to those in the conventional GPM approach.

Authors:
;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) Riken BNL Research Center
Sponsoring Org.:
DOE - OFFICE OF SCIENCE
OSTI Identifier:
1019481
Report Number(s):
BNL-94982-2011-JA
R&D Project: PO-3; TRN: US1103637
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Volume: 696; Journal Issue: 1-2
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; FINAL-STATE INTERACTIONS; HADRONS; PARTICLE PRODUCTION; PHOTONS; PRODUCTION; SPIN; Sivers function; Process-dependence; Single transverse spin asymmentry; Inclusive hadron production; riken bnl research center

Citation Formats

Gamberg, L, and Kang, Z. Process dependent Sivers function and implication for single spin asymmetry in inclusive hadron production. United States: N. p., 2010. Web.
Gamberg, L, & Kang, Z. Process dependent Sivers function and implication for single spin asymmetry in inclusive hadron production. United States.
Gamberg, L, and Kang, Z. Wed . "Process dependent Sivers function and implication for single spin asymmetry in inclusive hadron production". United States.
@article{osti_1019481,
title = {Process dependent Sivers function and implication for single spin asymmetry in inclusive hadron production},
author = {Gamberg, L and Kang, Z},
abstractNote = {We study the single transverse spin asymmetries in the single inclusive particle production within the framework of the generalized parton model (GPM). By carefully analyzing the initial- and final-state interactions, we include the process-dependence of the Sivers functions into the GPM formalism. The modified GPM formalism has a close connection with the collinear twist-3 approach. Within the new formalism, we make predictions for inclusive {pi}{sup 0} and direct photon productions at RHIC energies. We find the predictions are opposite to those in the conventional GPM approach.},
doi = {},
journal = {Physics Letters B},
number = 1-2,
volume = 696,
place = {United States},
year = {2010},
month = {12}
}