https://doi.org/10.1140/epjc/s10052-012-2231-7
Regular Article - Theoretical Physics
Quarkonium+γ production in coherent hadron–hadron interactions at LHC energies
1
Instituto de Física e Matemática, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900, Pelotas, RS, Brazil
2
Instituto Federal de Educação, Ciência e Tecnologia, IF - Farroupilha, Campus São Borja, Rua Otaviano Castilho Mendes, 355, CEP 97670-000, São Borja, RS, Brazil
* e-mail: barros@ufpel.edu.br
Received:
20
August
2012
Revised:
12
October
2012
Published online:
16
November
2012
In this paper we study the H+γ (H=J/Ψ and ϒ) production in coherent hadron–hadron interactions at LHC energies. Considering the ultrarelativistic protons as a source of photons, we estimate the γ+p→H+γ+X cross section using the non-relativistic QCD (NRQCD) factorization formalism and considering different sets of values for the matrix elements. Our results for the total p+p→p+H+γ+X cross sections and rapidity distributions at 
demonstrate that the experimental analysis of the J/Ψ+γ production at LHC is feasible.
© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica, 2012
