New analysis of the single transverse-spin asymmetry for hadron production at RHIC

Journal Article · Sun Aug 01 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.034009· OSTI ID:21432849

Kanazawa, Koichi ^[1]; Koike, Yuji ^[2]

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1. Graduate School of Science and Technology, Niigata University, Ikarashi, Niigata 950-2181 (Japan)
2. Department of Physics, Niigata University, Ikarashi, Niigata 950-2181 (Japan)

We analyze the single transverse-spin asymmetry (SSAs) for inclusive hadron production in the pp collision at RHIC based on the twist-3 mechanism in QCD. As an origin of SSAs, we take into account of all kinds of pole contributions associated with the twist-3 quark-gluon correlation functions in the polarized proton. By the inclusion of the soft-fermion-pole contribution in addition to the soft-gluon-pole contribution, we find SSAs observed at RHIC are better described for all kinds of mesons. P{sub T} dependence of the asymmetry and the comparison with the FNAL data are also presented.

• OSTI ID: 21432849
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 82; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ANGULAR MOMENTUM
ASYMMETRY
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
BROOKHAVEN RHIC
COMPARATIVE EVALUATIONS
CORRELATION FUNCTIONS
ELEMENTARY PARTICLES
EVALUATION
FERMIONS
FIELD THEORIES
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GLUONS
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY ION ACCELERATORS
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PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
PROTONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK-GLUON INTERACTIONS
QUARKS
SPIN
STORAGE RINGS