Measurement of beauty production via non-prompt D0 mesons in Pb-Pb collisions at √sNN=5.02 TeV

The production of non-prompt D0 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 $$ \sqrt{{\textrm{s}}_{\textrm{NN}}} $$= 5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA...

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Main Authors: Acharya, Shreyasi (Author) , Adamová, Dagmar (Author) , Adler, A. (Author) , Adolfsson, Jonatan (Author) , Angelov, Venelin (Author) , Berdnikova, Anastasia (Author) , Bergmann, Luisa (Author) , Danisch, Meike (Author) , Feuillard, Victor (Author) , Glässel, Peter (Author) , Kim, Jiyoung (Author) , Kim, Minjung (Author) , Kroesen, Martin (Author) , López, Jorge (Author) , Martin, Nicole Alice (Author) , Nath, Abhishek (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Schmah, Alexander (Author) , Schmidt, Marten Ole (Author) , Skorodumovs, Georgijs (Author) , Stachel, Johanna (Author) , Stiefelmaier, Stephan (Author) , Völkl, Martin (Author) , Windelband, Bernd (Author) , Yüncü, Alperen (Author) , Zanone, Federica (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: December 21, 2022
In: Journal of high energy physics
Year: 2022, Issue: 12, Pages: 1-27
ISSN:1029-8479
DOI:10.1007/JHEP12(2022)126
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP12(2022)126
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Author Notes:The ALICE collaboration: S. Acharya, D. Adamová, A. Adler, J. Adolfsson, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S.U. Ahn, I. Ahuja, Z. Akbar, A. Akindinov, M. Al-Turany, S.N. Alam, D. Aleksandrov, B. Alessandro, H.M. Alfanda, R. Alfaro Molina, B. Ali, Y. Ali, A. Alici, N. Alizadehvandchali, A. Alkin, J. Alme, G. Alocco, T. Alt, I. Altsybeev, M.N. Anaam, C. Andrei, A. Andronic, V. Anguelov, F. Antinori, P. Antonioli, C. Anuj, N. Apadula, L. Aphecetche, H. Appelshäuser, S. Arcelli, R. Arnaldi, I. C. Arsene, M. Arslandok, A. Augustinus, R. Averbeck, S. Aziz, M.D. Azmi, A. Badalà, Y.W. Baek, X. Bai, R. Bailhache, Y. Bailung, R. Bala, A. Balbino, A. Baldisseri, B. Balis, D. Banerjee, Z. Banoo, R. Barbera, L. Barioglio, M. Barlou, G.G. Barnaföldi, L.S. Barnby, V. Barret, C. Bartels, K. Barth, E. Bartsch, F. Baruffaldi, N. Bastid, S. Basu, G. Batigne, D. Battistini, B. Batyunya, D. Bauri, J.L. Bazo Alba, I. G. Bearden, C. Beattie, P. Becht, I. Belikov, A.D.C. Bell Hechavarria, F. Bellini, R. Bellwied, S. Belokurova, V. Belyaev, G. Bencedi, S. Beole, A. Bercuci, Y. Berdnikov, A. Berdnikova, L. Bergmann, M.G. Besoiu, L. Betev, P.P. Bhaduri, A. Bhasin, I.R. Bhat, M.A. Bhat, B. Bhattacharjee, L. Bianchi, N. Bianchi, J. Bielčík, J. Bielčíková, J. Biernat, A. Bilandzic, G. Biro, S. Biswas, J.T. Blair, D. Blau, M.B. Blidaru, C. Blume, G. Boca, F. Bock, A. Bogdanov, S. Boi, J. Bok, L. Boldizsár, A. Bolozdynya, M. Bombara, P.M. Bond, G. Bonomi, H. Borel, A. Borissov, H. Bossi, E. Botta, L. Bratrud, P. Braun-Munzinger, M. Bregant, M. Broz, G.E. Bruno, M.D. Buckland, D. Budnikov, H. Buesching, S. Bufalino, O. Bugnon, P. Buhler, Z. Buthelezi, J.B. Butt, A. Bylinkin, S.A. Bysiak, M. Cai, H. Caines, A. Caliva, E. Calvo Villar, J.M.M. Camacho, R.S. Camacho, P. Camerini, F.D.M. Canedo, M. Carabas, F. Carnesecchi, R. Caron, J. Castillo Castellanos, F. Catalano, C. Ceballos Sanchez, I. Chakaberia, P. Chakraborty, S. Chandra, S. Chapeland, M. Chartier, S. Chattopadhyay, S. Chattopadhyay, T.G. Chavez, T. Cheng, C. Cheshkov, B. Cheynis, V. Chibante Barroso, D.D. Chinellato, E.S. Chizzali, S. Cho, P. Chochula, P. Christakoglou, C.H. Christensen, P. Christiansen, T. Chujo, C. Cicalo, L. Cifarelli, F. Cindolo, M.R. Ciupek, G. Clai, J. Cleymans, F. Colamaria, J.S. Colburn, D. Colella, A. Collu, M. Colocci, M. Concas, G. Conesa Balbastre, Z. Conesa del Valle, G. Contin, J.G. Contreras, M.L. Coquet, T.M. Cormier, P. Cortese, M.R. Cosentino, F. Costa, S. Costanza, P. Crochet, R. Cruz-Torres, E. Cuautle, P. Cui, L. Cunqueiro, A. Dainese, M.C. Danisch, A. Danu, P. Das, P. Das, S. Das, S. Dash, A. De Caro, G. de Cataldo, L. De Cilladi, J. de Cuveland, A. De Falco, D. De Gruttola, N. De Marco, C. De Martin, S. De Pasquale, S. Deb, H.F. Degenhardt, K.R. Deja, R. Del Grande, L. Dello Stritto, W. Deng, P. Dhankher, D. Di Bari, A. Di Mauro, R.A. Diaz, T. Dietel, Y. Ding, R. Divià, D.U. Dixit, Ø. Djuvsland, U. Dmitrieva, A. Dobrin, B. Dönigus, A.K. Dubey, A. Dubla, S. Dudi, P. Dupieux, M. Durkac, N. Dzalaiova, T.M. Eder, R.J. Ehlers, V.N. Eikeland, F. Eisenhut, D. Elia, B. Erazmus, F. Ercolessi, E. Eremenko, F. Erhardt, A. Erokhin, M.R. Ersdal, B. Espagnon, G. Eulisse, D. Evans, S. Evdokimov, L. Fabbietti, M. Faggin, J. Faivre, F. Fan, W. Fan, A. Fantoni, M. Fasel, P. Fecchio, A. Feliciello, G. Feofilov, A. Fernández Téllez, A. Ferrero, A. Ferretti, V.J.G. Feuillard, J. Figiel, V. Filova, D. Finogeev, F.M. Fionda, G. Fiorenza, F. Flor, A.N. Flores, S. Foertsch, S. Fokin, E. Fragiacomo, E. Frajna, A. Francisco, U. Fuchs, N. Funicello, C. Furget, A. Furs, J.J. Gaardhøje, M. Gagliardi, A.M. Gago, A. Gal, C.D. Galvan, P. Ganoti, C. Garabatos, J.R.A. Garcia, E. Garcia-Solis, K. Garg, C. Gargiulo, A. Garibli, K. Garner, P. Gasik, E.F. Gauger, A. Gautam [und weitere Verfasser]
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Summary:The production of non-prompt D0 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 $$ \sqrt{{\textrm{s}}_{\textrm{NN}}} $$= 5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA), measured for the first time down to pT = 1 GeV/c in the 0-10% and 30-50% centrality classes, indicates a significant suppression, up to a factor of about three, for pT > 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 D0-meson RAA is larger than unity for pT > 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.
Item Description:Gesehen am 16.05.2023
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Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP12(2022)126