UNIQUE DESCRIPTION FOR SINGLE TRANSVERSE SPIN ASYMMETRIES IN DIS AND HADRONIC COLLISIONS.
We derive a unique formula for the single-transverse-spin asymmetry in semi-inclusive hadron production in deep inelastic scattering, valid for all transverse momentum region. Based on this, we further study the integrated asymmetry weighted with transverse-momentum. They can be evaluated in terms of the twist-three quark-gluon correlation functions, which are responsible for the single spin asymmetry in single inclusive hadron production in hadronic collisions. By using the fitted twist-three functions from the hadronic collision data, we find a consistent description for SSAs in deep inelastic scattering. This demonstrates that we have a unique picture for SSAs in these two processes, and shall provide important guidelines for future studies.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- DOE/SC AND RIKEN
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 897798
- Report Number(s):
- BNL-77354-2006-CP; R&D Project: 81128; KB-02-01; TRN: US0701518
- Resource Relation:
- Conference: 17TH INTERNATIONAL SPIN PHJYSICS SYMPOSIUM, SPIN 2006; KYOTO, JAPAN; 20061002 through 20061007
- Country of Publication:
- United States
- Language:
- English
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