dc.date.accessioned | 2023-10-24T05:01:40Z | |
dc.date.available | 2023-10-24T05:01:40Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | Journal of High Energy Physics. 2023 Oct 20;2023(10):119 | |
dc.identifier.uri | http://hdl.handle.net/10852/105606 | |
dc.description.abstract | The cross section for coherent photonuclear production of J/ψ is presented as a function of the electromagnetic dissociation (EMD) of Pb. The measurement is performed with the ALICE detector in ultra-peripheral Pb-Pb collisions at a centre-of-mass energy per nucleon pair of √sNN = 5.02 TeV. Cross sections are presented in five different J/ψ rapidity ranges within |y| < 4, with the J/ψ reconstructed via its dilepton decay channels. In some events the J/ψ is not accompanied by EMD, while other events do produce neutrons from EMD at beam rapidities either in one or the other beam direction, or in both. The cross sections in a given rapidity range and for different configurations of neutrons from EMD allow for the extraction of the energy dependence of this process in the range 17 < Wγ Pb,n < 920 GeV, where Wγ Pb,n is the centre-of-mass energy per nucleon of the γPb system. This range corresponds to a Bjorken-x interval spanning about three orders of magnitude: 1.1 × 10−5 < x < 3.3 × 10−2. In addition to the ultra-peripheral and photonuclear cross sections, the nuclear suppression factor is obtained. These measurements point to a strong depletion of the gluon distribution in Pb nuclei over a broad, previously unexplored, energy range. These results, together with previous ALICE measurements, provide unprecedented information to probe quantum chromodynamics at high energies. | |
dc.language.iso | eng | |
dc.rights | The Author(s); licensee Springer International Publishing Ltd. | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Energy dependence of coherent photonuclear production of J/ψ mesons in ultra-peripheral Pb-Pb collisions at √sNN = 5.02 TeV | |
dc.type | Journal article | |
dc.date.updated | 2023-10-24T05:01:41Z | |
dc.creator.author | Acharya, S. | |
dc.creator.author | Adamová, D. | |
dc.creator.author | Adler, A. | |
dc.creator.author | Aglieri Rinella, G. | |
dc.creator.author | Agnello, M. | |
dc.creator.author | Agrawal, N. | |
dc.creator.author | Ahammed, Z. | |
dc.creator.author | Ahmad, S. | |
dc.creator.author | Ahn, S. U. | |
dc.creator.author | Ahuja, I. | |
dc.creator.author | Alme, Johan | |
dc.creator.author | Alocco, G. | |
dc.creator.author | Alt, T. | |
dc.creator.author | Altamura, A. R. | |
dc.creator.author | Altsybeev, I. | |
dc.creator.author | Anaam, M. N. | |
dc.creator.author | Andrei, C. | |
dc.creator.author | Andronic, A. | |
dc.creator.author | Anguelov, V. | |
dc.creator.author | Antinori, F. | |
dc.creator.author | Arsene, Ionut Cristian | |
dc.creator.author | Bodova, Tea | |
dc.creator.author | Bylinkin, Aleksandr | |
dc.creator.author | Djuvsland, Øystein | |
dc.creator.author | Ersdal, Magnus Rentsch | |
dc.creator.author | Helstrup, Håvard | |
dc.creator.author | Hetland, Kristin Fanebust | |
dc.creator.author | Kileng, Bjarte | |
dc.creator.author | Langøy, Rune | |
dc.creator.author | Lien, Jørgen André | |
dc.creator.author | Lofnes, Ingrid Mckibben | |
dc.creator.author | Malik, Qasim Waheed | |
dc.creator.author | Neagu, Alexandra | |
dc.creator.author | Nese, Sigurd | |
dc.creator.author | Nystrand, Joakim Ingemar | |
dc.creator.author | Rauch, Max Philip | |
dc.creator.author | Rehman, Attiq Ur | |
dc.creator.author | Reme-Ness, Haakon André | |
dc.creator.author | Richter, Matthias | |
dc.creator.author | Røed, Ketil | |
dc.creator.author | Röhrich, Dieter | |
dc.creator.author | Sætre, Jon-Are | |
dc.creator.author | Skaali, Toralf Bernhard | |
dc.creator.author | Solheim, Emilie Haugland | |
dc.creator.author | Storehaug, Ida Torkjellsdatter | |
dc.creator.author | Tveter, Trine Spedstad | |
dc.creator.author | Ullaland, Kjetil | |
dc.creator.author | Wikne, Jon Christopher | |
dc.creator.author | Yang, Shiming | |
dc.creator.author | Yuan, Shiming | |
dc.creator.author | ALICE, Collaboration | |
dc.identifier.cristin | 2204846 | |
dc.identifier.doi | https://doi.org/10.1007/JHEP10(2023)119 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.type.version | PublishedVersion | |
cristin.articleid | 119 | |