Central exclusive production of $\eta_c$ and $\chi_{c0}$ in the light-front k$_{\perp}$-factorization approach

Izabela Babiarz; Roman Pasechnik; Wolfgang Schäfer; Antoni Szczurek

Central exclusive production of $\eta_c$ and $\chi_{c0}$ in the light-front k$_{\perp}$-factorization approach

High Energy Physics - Phenomenology 2021-08-02 v1

Authors: Izabela Babiarz , Roman Pasechnik , Wolfgang Schäfer , Antoni Szczurek

Abstract

We study the exclusive production of $J^{PC}=0^{++}, 0^{--}$ charmonium states in proton-proton collisions at the LHC energies The $pp \to pp\eta_c$ reaction is discussed for the first time. We observe a substantial contribution from the nonperturbative domain of gluon virtualities, especially for $\eta_c$ production. To model the nonperturbative region better, we utilize models of the unintegrated gluon distribution based on parametrizations of the color dipole cross-section.

Keywords

central exclusive production eta_c chi_c0 light-front k-perp factorization charmonium unintegrated gluon distribution

Cite

@article{arxiv.2107.14482,
  title  = {Central exclusive production of $\eta_c$ and $\chi_{c0}$ in the light-front k$_{\perp}$-factorization approach},
  author = {Izabela Babiarz and Roman Pasechnik and Wolfgang Schäfer and Antoni Szczurek},
  journal= {arXiv preprint arXiv:2107.14482},
  year   = {2021}
}

Comments

6 pages, 3 figures, submision to SciPost, talk given by I. Babiarz at the XXVIII International Workshop on Depp-Inelastic Scattering and Related Subjects (DIS2021)

Central exclusive production of $\eta_c$ and $\chi_{c0}$ in the light-front k$_{\perp}$-factorization approach

Abstract

Keywords

Cite

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