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Roman Pasechnik

Senior lecturer

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Prompt hadroproduction of ηc(1S, 2S) in the kT-factorization approach

Author

  • Izabela Babiarz
  • Roman Pasechnik
  • Wolfgang Schäfer
  • Antoni Szczurek

Summary, in English

In this work, we present a thorough analysis of ηc(1S, 2S) quarkonia hadroproduction in k-factorisation in the framework of the light-front potential approach for the quarkonium wave function. The off-shell matrix elements for the g*g*ηc(1S, 2S) vertices are derived. We discuss the importance of taking into account the gluon virtualities. We present the transverse momentum distributions of ηc for several models of the unintegrated gluon distributions. Our calculations are performed for four distinct parameterisations for the cc¯ interaction potential consistent with the meson spectra. We compare our results for ηc(1S) to measurements by the LHCb collaboration and present predictions for ηc(2S) production.

Department/s

  • Theoretical Particle Physics

Publishing year

2020

Language

English

Publication/Series

Journal of High Energy Physics

Volume

2020

Issue

2

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • QCD Phenomenology

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479