Diffractive J/psi production as a probe of the gluon component in the Pomeron

Abstract

Presented here is a study of the large p_T J/psi production in hard diffractive process by the pomeron exchange at the Fermilab Tevatron. We find that this process (p\bar p \to p+J/psi+X) can be used to probe the gluon content of the pomeron and to measure the gluon fraction of the pomeron. And the diffractive direct J/psi production can also provide another crucial test for the color-octet fragmentation mechanism. Using the renormalised pomeron flux factor D\approx 1/9, the single diffractive J/psi production cross section at large p_T (\geq 8GeV) is found to be of order of 0.01 nb, and the ratio of the single diffractive to the non-diffractive J/psi production is 0.65\pm 0.15% for the gluon fraction f_g=0.7\pm 0.2.

13 pages, 6 Postscript figures

References in corpus (1)

• Observation of Diffractive W Boson Production at the Tevatron

Cited by in corpus (5)

• Diffractive $\jpsi$ production through Color-Octet mechanism at hadron colliders
• Single diffractive production of open heavy flavor mesons
• Associated jpsi + gamma diffractive production: the nature of Pomeron and test of hard diffractive factorization
• Hard diffractive quarkonium hadroproduction at high energies
• Single Diffractive Lambda_c^+ Production in Polarized pp Scattering with Polarized Gluon Distribution in the Proton