Double-spin asymmetry of J/{psi} production in polarized pp collisions
- Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Moscow Region, 141980 (Russia)
We calculate the color-octet contribution to the double spin asymmetry of J/{psi} hadroproduction with nonzero transverse momenta at fixed target energies {radical} (s) {approx_equal}40GeV. It is shown that the color-octet contribution is dominant in the asymmetries. The expected asymmetries and statistical errors in a future option of DESY HERA with longitudinally polarized protons at HERA-{rvec N} should allow one to distinguish between different parametrizations for the polarized gluon distribution in the proton. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 553196
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 11 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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