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Akindinov, A; Alizadehvandchali, N; Alme, J; Alocco, G; Altamura, A R; Badalà, A; Bai, X; Balis, B; Barbera, R; Barreto, L; Bastid, N; Basu, S; Bauri, D; Beattie, C; Camacho, J M M; Cantway, S L; Carvalho, L A D; Chandra, S; Chochula, P; Christakoglou, P; Cicalo, C; Colella, D; Conesa Del Valle, Z; Cortese, P; Cruz-Torres, R; Dello Stritto, L; Dobrin, A; Eulisse, G; Ferretti, A; Feuillard, V J G; Gagliardi, M; Gahlaut, T; Gargiulo, C; Glaenzer, A M C; Gorgon, M; Grigoras, C; Grosa, F; Hansen, J; Hellbär, E; Herman, T; Isidori, T; Islam, M S; Jablonski, M; Janson, T; Kalteyer, A S; Khan, A M; Khatun, A; Kim, C; Kitowski, J P; Krizkova Gajdosova, K; Kryshen, E; Li, X; Lietava, R; Loizides, C; Manko, V; Martínez García, G; Masoni, A; Mazzilli, M; Migliorin, L C; Mihaylov, D L; Mohanty, A P; Myrcha, J W; Ogino, M; Okorokov, V A; Poljak, N; Rami, F; Rauch, M P; Rescakova, Z; Rogoschinski, T S; Rojas, P F; Rojas Torres, S; Ronchetti, F; Russek, P G; Ryabinkin, E; Sahoo, R; Saini, J; Sambyal, S; Schotter, R; Schweda, K; Sharma, M; Sharma, S; Sheibani, O; Siddhanta, S; Singh, K; Soto-Hernandez, A B; Spijkers, R; Suire, C; Tambave, G J; Tang, Z; Tejeda Muñoz, G; Thakur, S; Uras, A; Urioni, M; van Veen, C A; Vértesi, R; Voloshin, S A; Yadav, A; Yadav, A K; Zarochentsev, A; Závada, P
Physical review letters, 04/2024, Volume: 132, Issue: 16Journal Article
The first measurement of the cross section for incoherent photonuclear production of J/ψ vector mesons as a function of the Mandelstam |t| variable is presented. The measurement was carried out with the ALICE detector at midrapidity, |y|<0.8, using ultraperipheral collisions of Pb nuclei at a center-of-mass energy per nucleon pair of sqrts_{NN}=5.02 TeV. This rapidity interval corresponds to a Bjorken-x range (0.3-1.4)×10^{-3}. Cross sections are given in five |t| intervals in the range 0.04<|t|<1 GeV^{2} and compared to the predictions by different models. Models that ignore quantum fluctuations of the gluon density in the colliding hadron predict a |t| dependence of the cross section much steeper than in data. The inclusion of such fluctuations in the same models provides a better description of the data.
