$J/\Psi {\rm Y}$ Production at LHC

Abstract

Inclusive production of ${\rm Y}J/\psi$ pair in proton-proton interation at LHCb is considered. This process is forbidden at leading order of perturbation theory, so such channels as double parton scattering, ${\chi }_b{\chi }_c$ pair production with subsequent radiative decays of $P$-wave quarkonia, contributions of color-octet states, and NLO corrections are studied in details. For all these channels we present theoretical predictions of total cross sections at LHCb and distributions over different kinematical variables. According to presented in the paper results, double parton interaction gives main contribution to the cross section of the considered reaction.

8 pages, 4 figures, 1 table. To be published in the proceedings of CHARM-2015, Detroit, MI, 18-22 May 2015

References in corpus (7)

• Improved determination of color-singlet nonrelativistic QCD matrix elements for S-wave charmonium
• Inclusive double-quarkonium production at the Large Hadron Collider
• Production of ${\chi }_b$-mesons at LHC
• Production of ${\chi }_c$- and ${\chi }_b$-mesons in high energy hadronic collisions
• Simultaneous production of charmonium and bottomonium mesons at LHC
• Double parton scattering as a source of quarkonia pairs in LHCb
• ${\rm Y}$-meson pair production at LHC

Cited by in corpus (1)

• CHARM-2015 Theory Summary