Single Spin Asymmetry of Vector Meson Production as a Probe of Asymmetry of Parton Scattering

1994/08/24 by J. Czyzewski, J. Czyżewski, Czyzewski, J.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9408361

plain TeX, 6 pages (revised version, 2 corrected figures added in a compressed uuencoded PostScript file), HEN-377 (1994)

openalex publication_date 1994/08/24 · arxiv created 1994/09/14 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Azimuthal asymmetry of vector-meson production in single-transversely polarized proton-proton collisions (p\up p) is calculated in the string model of particle production. The asymmetry is generated only during fragmentation of a high-energy quark into hadrons. The obtained asymmetry of the ρ^± is opposite in sign to that of π^± mesons. On the other hand, an asymmetry appearing during parton scattering would contribute with the same sign to that of vector and pseudoscalar mesons. Thus, a combined measurement of both can be used to estimate the contribution to the asymmetry from parton scattering.

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