Photoproduction of ψ' as a Test of Color-Octet Model

1999/01/31 by T. Morii, D. Roy, K. Sudoh
Physics and Astronomy · #hep-ph

paper · pdf

published as Phys.Rev. D62 (2000) 057501 · 4 pages including 2 ps-figures, use sprocl.sty and psfig.tex, Latex. Talk given at the 1998 YITP Workshop on "QCD and Hadron Physics", (Kyoto, Japan, Oct. 14-16, 1998)

arxiv created 2002/12/17 · arxiv updated 2009/11/30

Abstract

We have calculated the cross section of ψ' photoproduction at small-p_T regions in polarized γp collisions for testing the color-octet model, which is based on NRQCD factorization formalism. We show that the measurement of the two-spin asymmetry of this process might be effective to constrain the value of NRQCD matrix elements.

Related

• Color Octet Contribution to J/psi Photoproduction Asymmetries
• Leptoproduction of J/ψ
• Color-Octet Contribution to J/ψ Hadroproduction with Nonzero p_T at Fixed Target Energies
• The production of J/ψ associated with cc at ep colliders
• Inclusive J/ψ photoproduction at HERA