Suppression and azimuthal anisotropy of prompt and nonprompt [Formula: see text] production in PbPb collisions at [Formula: see text][Formula: see text]

The nuclear modification factor [Formula: see text] and the azimuthal anisotropy coefficient [Formula: see text] of prompt and nonprompt (i.e. those from decays of b hadrons) [Formula: see text] mesons, measured from PbPb and pp collisions at [Formula: see text] [Formula: see text] at the LHC, are r...

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Veröffentlicht in:The European physical journal. C, Particles and fields Particles and fields, 2017-04, Vol.77 (4), p.252
Hauptverfasser: Khachatryan, V, Sirunyan, A M, Tumasyan, A, Adam, W, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Flechl, M, Friedl, M, Frühwirth, R, Ghete, V M, Hartl, C, Hörmann, N, Hrubec, J, Jeitler, M, König, A, Krätschmer, I, Liko, D, Matsushita, T, Mikulec, I, Rabady, D, Rad, N, Rahbaran, B, Rohringer, H, Schieck, J, Strauss, J, Waltenberger, W, Wulz, C-E, Dvornikov, O, Makarenko, V, Zykunov, V, Mossolov, V, Shumeiko, N, Suarez Gonzalez, J, Alderweireldt, S, De Wolf, E A, Janssen, X, Lauwers, J, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Van Spilbeeck, A, Abu Zeid, S, Blekman, F, D'Hondt, J, Daci, N, De Bruyn, I, Deroover, K, Lowette, S, Moortgat, S, Moreels, L, Olbrechts, A, Python, Q, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Karapostoli, G, Lenzi, T, Léonard, A, Luetic, J, Maerschalk, T, Marinov, A, Randle-Conde, A, Seva, T, Vander Velde, C, Vanlaer, P, Vannerom, D, Yonamine, R, Zenoni, F, Zhang, F, Cimmino, A, Cornelis, T, Dobur, D, Fagot, A, Garcia, G, Gul, M, Khvastunov, I, Poyraz, D, Salva, S, Schöfbeck, R, Sharma, A, Tytgat, M, Van Driessche, W, Yazgan, E, Zaganidis, N, Bakhshiansohi, H, Beluffi, C
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Sprache:eng
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Zusammenfassung:The nuclear modification factor [Formula: see text] and the azimuthal anisotropy coefficient [Formula: see text] of prompt and nonprompt (i.e. those from decays of b hadrons) [Formula: see text] mesons, measured from PbPb and pp collisions at [Formula: see text] [Formula: see text] at the LHC, are reported. The results are presented in several event centrality intervals and several kinematic regions, for transverse momenta [Formula: see text] [Formula: see text] and rapidity [Formula: see text], extending down to [Formula: see text] [Formula: see text] in the [Formula: see text] range. The [Formula: see text] of prompt [Formula: see text] is found to be nonzero, but with no strong dependence on centrality, rapidity, or [Formula: see text] over the full kinematic range studied. The measured [Formula: see text] of nonprompt [Formula: see text] is consistent with zero. The [Formula: see text] of prompt [Formula: see text] exhibits a suppression that increases from peripheral to central collisions but does not vary strongly as a function of either or [Formula: see text] in the fiducial range. The nonprompt [Formula: see text] [Formula: see text] shows a suppression which becomes stronger as rapidity or [Formula: see text] increases. The [Formula: see text] and [Formula: see text] of open and hidden charm, and of open charm and beauty, are compared.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-017-4781-1