2002/12/04 by A. Hayashigaki, K. Suzuki, K. Tanaka +1 · 5 citations
Physics and Astronomy · #Algorithm #Factorization #Gluon #HERA #High-Energy Particle Collisions Research #Meson #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Perturbative QCD #Physics #Pseudoscalar #Pseudoscalar meson #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.67.093002
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 67(9) (American Physical Society) · REVTex4, 4 pages with 3 embedded figures
arxiv created 2002/12/04 · openalex publication_date 2003/05/16 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on a first theoretical study for neutrino-induced diffractive production of heavy pseudoscalar mesons \ensuremathηc and \ensuremathηb off a nucleon. Based on the factorization formalism for exclusive processes, we evaluate the forward diffractive production cross section in perturbative QCD in terms of the light-cone QQ wave functions (WFs) of \ensuremathηc,b mesons and the gluon distribution of the nucleon. The light-cone WFs of the \ensuremathηc(\ensuremathηb) meson are constructed to satisfy the spin symmetry relations with those of the J/\ensuremathψ(\ensuremathΥ) meson. The diffractive \ensuremathηc production is governed by the axial-vector coupling of the longitudinally polarized Z boson to a QQ pair, and the resulting \ensuremathηc production rate is larger than that for the J/\ensuremathψ by one order of magnitude. We also discuss the production of bottomonium \ensuremathηb, which shows up for a higher beam energy.