UNI-MB - logo
UMNIK - logo
 
E-resources
Full text
Peer reviewed Open access
  • Measurement of non-prompt D...
    Acharya, S; Ahn, S. U; Ahuja, I; Alkin, A; Andreou, N; Appelshäuser, H; Arneiro, J. G. M. C. A; Barnaföldi, G. G; Barnby, L. S; Battistini, D; Bearden, I. G; Bergmann, L; Bhattacharjee, B; Bianchi, L; Broz, M; Buckland, M. D; Catalano, F; Chochula, P; Christiansen, P; Conesa del Valle, Z; Contreras, J. G; Cosentino, M. R; Das, P; Dash, A. R; Dixit, D. U; Dobrin, A; Dudi, S; Ejima, R; Ercolessi, F; Ferrandi, L; Germain, M; Grigoryan, S; Grosso, R; Guardiano, G. G; Hassan, H; Hauer, P; Heckel, S. T; Hoffmann, F. W; Isidori, T; Iversen, K. E; Jacazio, N; Jowett, J. M; Karatovic, D; Karavicheva, T; Khade, S. S; Khatun, A; Kondratyuk, E; Konopka, P. J; Kotliarov, A; Kumaoka, T; Kurashvili, P; Kurepin, A. B; Larionov, P; Lea, R; Lesser, E. D; Lietava, R; Mager, M; Mallick, N; Mandaglio, G; Martínez García, G; Mastroserio, A; Munzer, R. H; Murray, S; Nandi, B. K; Nellen, L; Nese, S; Nicassio, N; Pestov, Y; Pillot, P; Politano, S; Pradhan, K. K; Prasad, S; Rescakova, Z; Rosas, E. D; Ruggiano, D; Russek, P. G; Ryabov, Y; Saha, P; Shaba, T. J; Sheibani, O; Shigaki, K; Simeonov, R; Singh, B; Singhal, V; Smirnov, N; Tang, S; Tassielli, G. F; Tejeda Muñoz, G; Topilskaya, N; Tumkin, A; Vande Vyvre, P; Virta, M. M. O; Volkel, B; Vorobyev, I; Wilk, G; Yuncu, A; Zaccolo, V; Zhang, C; Zhi, Y; Zugravel, S. C

    The European physical journal. C, Particles and fields, 12/2023, Volume: 83, Issue: 12
    Journal Article

    The elliptic flow ( v 2 ) of D 0 mesons from beauty-hadron decays (non-prompt D 0 ) was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair s NN = 5.02  TeV with the ALICE detector at the LHC. The D 0 mesons were reconstructed at midrapidity ( | y | < 0.8 ) from their hadronic decay D 0 → K - π + , in the transverse momentum interval 2 < p T < 12  GeV/ c . The result indicates a positive v 2 for non-prompt D 0 mesons with a significance of 2.7 σ . The non-prompt D 0 -meson v 2 is lower than that of prompt non-strange D mesons with 3.2 σ significance in 2 < p T < 8 GeV / c , and compatible with the v 2 of beauty-decay electrons. Theoretical calculations of beauty-quark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.