Skip to main content
Journal cover image

Coherent J/ψ photoproduction at midrapidity in Pb−Pb collisions at sNN=5.02 TeV

Publication ,  Journal Article
Acharya, S; Agarwal, A; Aglieri Rinella, G; Aglietta, L; Agnello, M; Agrawal, N; Ahammed, Z; Ahmad, S; Ahn, SU; Ahuja, I; Akindinov, A; Ali, B ...
Published in: Physics Letters Section B Nuclear Elementary Particle and High Energy Physics
December 1, 2025

The coherent J/ ψ photoproduction cross section is measured for the first time at midrapidity in peripheral to semicentral Pb−Pb collisions at sNN=5.02 TeV. The centrality differential cross section d σ /d y is reported for the centrality range 40–90%, together with the doubly-differential cross section d2 σ /d y d p T, extracted in two peripheral centrality classes. The J/ ψ mesons are reconstructed in the dielectron channel, in the rapidity interval | y | < 0.9 using the ALICE central barrel detectors. The J/ ψ cross section at midrapidity is statistically compatible to the earlier ALICE measurement at forward rapidity and at the same centre-of-mass energy, and shows only a mild centrality dependence over the covered range. Several sets of theoretical calculations taking into account the hadronic overlap in the collisions but ignoring possible final-state effects from a hot expanding medium are found to give a fairly good description of the current measurements within uncertainties.

Duke Scholars

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

ISSN

0370-2693

Publication Date

December 1, 2025

Volume

871

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Acharya, S., Agarwal, A., Aglieri Rinella, G., Aglietta, L., Agnello, M., Agrawal, N., … Betev, L. (2025). Coherent J/ψ photoproduction at midrapidity in Pb−Pb collisions at sNN=5.02 TeV. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 871. https://doi.org/10.1016/j.physletb.2025.139952
Acharya, S., A. Agarwal, G. Aglieri Rinella, L. Aglietta, M. Agnello, N. Agrawal, Z. Ahammed, et al. “Coherent J/ψ photoproduction at midrapidity in Pb−Pb collisions at sNN=5.02 TeV.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 871 (December 1, 2025). https://doi.org/10.1016/j.physletb.2025.139952.
Acharya S, Agarwal A, Aglieri Rinella G, Aglietta L, Agnello M, Agrawal N, et al. Coherent J/ψ photoproduction at midrapidity in Pb−Pb collisions at sNN=5.02 TeV. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2025 Dec 1;871.
Acharya, S., et al. “Coherent J/ψ photoproduction at midrapidity in Pb−Pb collisions at sNN=5.02 TeV.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 871, Dec. 2025. Scopus, doi:10.1016/j.physletb.2025.139952.
Acharya S, Agarwal A, Aglieri Rinella G, Aglietta L, Agnello M, Agrawal N, Ahammed Z, Ahmad S, Ahn SU, Ahuja I, Akindinov A, Akishina V, Al-Turany M, Aleksandrov D, Alessandro B, Alfanda HM, Alfaro Molina R, Ali B, Alici A, Alizadehvandchali N, Alkin A, Alme J, Alocco G, Alt T, Altamura AR, Altsybeev I, Alvarado JR, Alvarez COR, Anaam MN, Andrei C, Andreou N, Andronic A, Andronov E, Anguelov V, Antinori F, Antonioli P, Apadula N, Aphecetche L, Appelshäuser H, Arata C, Arcelli S, Arnaldi R, Arneiro JGMCA, Arsene IC, Arslandok M, Augustinus A, Averbeck R, Averyanov D, Azmi MD, Baba H, Badalà A, Bae J, Baek YW, Bai X, Bailhache R, Bailung Y, Bala R, Balbino A, Baldisseri A, Balis B, Banoo Z, Barbasova V, Barile F, Barioglio L, Barlou M, Barman B, Barnaföldi GG, Barnby LS, Barreau E, Barret V, Barreto L, Bartels C, Barth K, Bartsch E, Bastid N, Basu S, Batigne G, Battistini D, Batyunya B, Bauri D, Alba JLB, Bearden IG, Beattie C, Becht P, Behera D, Belikov I, Bell Hechavarria ADC, Bellini F, Bellwied R, Belokurova S, Beltran LGE, Beltran YAV, Bencedi G, Bensaoula A, Beole S, Berdnikov Y, Berdnikova A, Bergmann L, Besoiu MG, Betev L. Coherent J/ψ photoproduction at midrapidity in Pb−Pb collisions at sNN=5.02 TeV. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 2025 Dec 1;871.
Journal cover image

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

ISSN

0370-2693

Publication Date

December 1, 2025

Volume

871

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences