TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.8.118
TI  - Central exclusive production of $\eta_c$ and $\chi_{c0}$ in the light-front k$_{\perp}$-factorization approach
PY  - 2022/07/13
UR  - https://www.scipost.org/SciPostPhysProc.8.118
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 8
SP  - 118
A1  - Babiarz, Izabela
AU  - Pasechnik, Roman
AU  - Schäfer, Wolfgang
AU  - Szczurek, Antoni
AB  - We study the exclusive production of $J^{PC}=0^{++}, 0^{--}$ charmonium states in proton-proton collisions at the LHC energies. The amplitudes for $g^*g^*→\chi_{c0}$ as well as for$ gg→\eta_c$ mechanisms are derived in the kT-factorization approach. 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.
ER  -

@Article{10.21468/SciPostPhysProc.8.118,
	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={SciPost Phys. Proc.},
	pages={118},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.8.118},
	url={https://scipost.org/10.21468/SciPostPhysProc.8.118},
}