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Title: Process dependent Sivers function and implications 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 $$\pi^0$$ 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.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1003864
Report Number(s):
JLAB-THY-10-1116; DOE/OR/23177-1411; arXiv:1009.1936
TRN: US1100532
DOE Contract Number:  
AC05-06OR23177
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

Citation Formats

Leonard Gamberg, Zhong-Bo Kang. Process dependent Sivers function and implications for single spin asymmetry in inclusive hadron production. United States: N. p., 2011. Web. doi:10.1016/j.physletb.2010.11.066.
Leonard Gamberg, Zhong-Bo Kang. Process dependent Sivers function and implications for single spin asymmetry in inclusive hadron production. United States. doi:10.1016/j.physletb.2010.11.066.
Leonard Gamberg, Zhong-Bo Kang. Sat . "Process dependent Sivers function and implications for single spin asymmetry in inclusive hadron production". United States. doi:10.1016/j.physletb.2010.11.066.
@article{osti_1003864,
title = {Process dependent Sivers function and implications for single spin asymmetry in inclusive hadron production},
author = {Leonard Gamberg, Zhong-Bo Kang},
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 $\pi^0$ and direct photon productions at RHIC energies. We find the predictions are opposite to those in the conventional GPM approach.},
doi = {10.1016/j.physletb.2010.11.066},
journal = {Physics Letters B},
number = 1-2,
volume = 696,
place = {United States},
year = {2011},
month = {1}
}