RT Journal Article
T1 Central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at √s=13 TeV
A1 LHCb Collaboration, 
A1 Adeva Andany, Bernardo
A1 Boente García, Óscar
A1 Borsato, Martino
A1 Chobanova, Veronika
A1 Cid Vidal, Xabier
A1 Dosil Suárez, Álvaro
A1 Fernández Prieto, Antonio
A1 García Plana, Beatriz
A1 García Pardiñas, Julián
A1 Lucio Martínez, Miriam
A1 Martínez Santos, Diego
A1 Plo Casasus, Máximo
A1 Prisciandaro, James J.
A1 Ramos Pernas, Miguel
A1 Romero Vidal, Antonio
A1 Saborido Silva, Juan José
A1 Sanmartín Sedes, Brais
A1 Santamarina Ríos, Cibrán
A1 Vázquez Regueiro, Pablo
A1 Vieites Díaz, María
K1 Charm physics
K1 Forward physics
K1 Hadron-Hadron scattering (experiments)
K1 Particle and resonance production
K1 Quarkonium
AB Measurements are reported of the central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at a centre-of-mass energy of 13 TeV. Backgrounds are significantly reduced compared to previous measurements made at lower energies through the use of new forward shower counters. The products of the cross-sections and the branching fractions for the decays to dimuons, where both muons are within the pseudorapidity range 2.0 < η < 4.5, are measured to beσJ/ψ→μ+μ−=435±18±11±17 pbσψ(2S)→μ+μ−=11.1±1.1±0.3±0.4 pb.The first uncertainties are statistical, the second are systematic, and the third are due to the luminosity determination. The cross-sections are also measured differentially for meson rapidities between 2.0 and 4.5. Good agreement is observed with theoretical predictions. Photoproduction cross-sections are derived and compared to previous experiments, and a deviation from a pure power-law extrapolation of lower energy data is observed.
PB Springer
SN 1029-8479
YR 2018
FD 2018
LK http://hdl.handle.net/10347/22302
UL http://hdl.handle.net/10347/22302
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M. et al. Central exclusive production of J/ψ and ψ(2S) mesons in pp collisions at √s=13 TeV. J. High Energ. Phys. 2018, 167 (2018). https://doi.org/10.1007/JHEP10(2018)167
DS Minerva
RD 24 abr 2026