The ALICE Collaboration reports three measurements in ultra-peripheral proton−lead collisions at forward rapidity. The exclusive two-photon process γγ → μ+μ−and the exclusive photoproduction of J/ψ are studied. J/ψ photoproduction with proton dissociation is measured for the first time at a hadron collider. The cross section for the two-photon process of dimuons in the invariant mass range from 1 to 2.5 GeV/c2 agrees with leading order quantum electrodynamics calculations. The exclusive and dissociative cross sections for J/ψ photoproductions are measured for photon−proton centre-of-mass energies from 27 to 57 GeV. They are in good agreement with HERA results.

Acharya, S., Adamová, D., Adler, A., Aglieri Rinella, G., Agnello, M., Agrawal, N., et al. (2023). Exclusive and dissociative J/ψ photoproduction, and exclusive dimuon production, in p−Pb collisions at √sNN=8.16 TeV. PHYSICAL REVIEW D, 108(11), 1-21 [10.1103/PhysRevD.108.112004].

Exclusive and dissociative J/ψ photoproduction, and exclusive dimuon production, in p−Pb collisions at √sNN=8.16 TeV

Agrawal, N.;Alici, A.;Arcelli, S.;Bellini, F.;Carnesecchi, F.;Colocci, M.;Ercolessi, F.;Giacalone, M.;Jacazio, N.;Malfattore, G.;Rubini, N.;Scioli, G.;Strazzi, S.;
2023

Abstract

The ALICE Collaboration reports three measurements in ultra-peripheral proton−lead collisions at forward rapidity. The exclusive two-photon process γγ → μ+μ−and the exclusive photoproduction of J/ψ are studied. J/ψ photoproduction with proton dissociation is measured for the first time at a hadron collider. The cross section for the two-photon process of dimuons in the invariant mass range from 1 to 2.5 GeV/c2 agrees with leading order quantum electrodynamics calculations. The exclusive and dissociative cross sections for J/ψ photoproductions are measured for photon−proton centre-of-mass energies from 27 to 57 GeV. They are in good agreement with HERA results.
2023
Acharya, S., Adamová, D., Adler, A., Aglieri Rinella, G., Agnello, M., Agrawal, N., et al. (2023). Exclusive and dissociative J/ψ photoproduction, and exclusive dimuon production, in p−Pb collisions at √sNN=8.16 TeV. PHYSICAL REVIEW D, 108(11), 1-21 [10.1103/PhysRevD.108.112004].
Acharya, S.; Adamová, D.; Adler, A.; Aglieri Rinella, G.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S.  U.; Ahuja, I.; Akindinov, A.; Al-...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/954520
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