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Adamová, D.; Agnello, M.; Akbar, Z.; Alkin, A.; Andrei, C.; Arcelli, S.; Arnaldi, R.; Arslandok, M.; Azmi, M. D.; Bala, R.; Balis, B.; Banerjee, D.; Basu, S.; Becht, P.; Berdnikova, A.; Bielčík, J.; Bysiak, S. A.; Calvo Villar, E.; Camerini, P.; Caron, R.; Chakaberia, I.; Cheng, T.; Chibante Barroso, V.; Chinellato, D. D.; Christensen, C. H.; Clai, G.; Collu, A.; Costanza, S.; Danu, A.; Das, S.; de Cataldo, G.; Deb, S.; Deja, K. R.; Di Bari, D.; Dupieux, P.; Eisenhut, F.; Evdokimov, S.; Fantoni, A.; Ferretti, A.; Figiel, J.; Finogeev, D.; Flor, F.; Gaardhøje, J. J.; Giubellino, P.; Giubilato, P.; Gorgon, M.; Guardiano, G. G.; Guzman, S. P.; Harton, A.; Helstrup, H.; Huhta, L. M.; Hushnud, H.; Hutson, A.; Ivanov, M.; Kabus, M. J.; Karatovic, D.; Kazantsev, A.; Kim, E. J.; Kitowski, J. P.; Kleiner, M.; Konig, J.; Kreis, L.; Kumar, D.; Li, X.; Lindenstruth, V.; Manko, V.; Marquard, M.; Mikhaylov, K.; Mohanty, B.; Moreira De Godoy, D. A.; Muccifora, V.; Mudnic, E.; Mulligan, J. D.; Nair, R.; Nania, R.; Neagu, A.; Nowakowski, P.; Okorokov, V. A.; Osako, T.; Padhan, S.; Polichtchouk, B.; Quaglia, L.; Redlich, K.; Rodríguez Cahuantzi, M.; Roy, S.; Sakai, S.; Senyukov, S.; Shabetai, A.; Shimomura, M.; Stachel, J.; Stiefelmaier, S. F.; Tambave, G. J.; Terlizzi, L.; van Weelden, R. J. G.; Vázquez Doce, O.; Wiechula, J.; Witt, W. E.; Wright, J. R.; Zhang, B.; Zhou, Y.
The journal of high energy physics, 12/2022, Letnik: 2022, Številka: 12Journal Article
A bstract The production of non-prompt D 0 mesons from beauty-hadron decays was measured at midrapidity (| y | < 0 . 5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of $$ \sqrt{{\textrm{s}}_{\textrm{NN}}} $$ s NN = 5 . 02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor ( R AA ), measured for the first time down to p T = 1 GeV /c in the 0–10% and 30–50% centrality classes, indicates a significant suppression, up to a factor of about three, for p T > 5 GeV /c in the 0–10% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronisation mechanism. The ratio of the non-prompt to prompt D 0 -meson R AA is larger than unity for p T > 4 GeV /c in the 0–10% central Pb-Pb collisions, as predicted by models in which beauty quarks lose less energy than charm quarks in the quark-gluon plasma because of their larger mass.
