Polarisation effects in the central exclusive χc production and the J/ψ angular distributions
Pasechnik, Roman · Szczurek, Antoni · Teryaev, Oleg
Original · EN
We discuss exclusive elastic double diffractive axial-vector χc(1+) and tensor χc(2+) mesons production for different meson polarisations in proton-(anti)proton collisions at the Tevatron energy. The amplitude for the process is derived within the kₜ-factorisation approach using unintegrated gluon distributions (UGDFs). Differential cross sections for different χc polarisations are calculated. Angular distributions of J/ψ meson from the radiative χc(1+,2+) decays are derived. Prospects for experimental selection of different spin states of χc mesons are discussed.
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