The ALICE Collaboration reports three measurements in ultraperipheral proton-lead collisions at forward rapidity. The exclusive two-photon process 𝛾⁢𝛾→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 center-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 ultraperipheral proton-lead collisions at forward rapidity. The exclusive two-photon process 𝛾⁢𝛾→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 center-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 ��/�� photoproduction, and exclusive dimuon production, in p-Pb collisions at √��NN=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-T...espandi
File in questo prodotto:
File Dimensione Formato  
PhysRevD.108.112004-1.pdf

accesso aperto

Tipo: Versione (PDF) editoriale
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione (CCBY)
Dimensione 831.41 kB
Formato Adobe PDF
831.41 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/954520
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact