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Measurement of D0, D+, D*+ and D s+ production in Pb-Pb collisions at √sNN=5.02 TeV

  • Author(s): Acharya, S;
  • Acosta, FT;
  • Adamová, D;
  • Adolfsson, J;
  • Aggarwal, MM;
  • Aglieri Rinella, G;
  • Agnello, M;
  • Agrawal, N;
  • Ahammed, Z;
  • Ahn, SU;
  • Aiola, S;
  • Akindinov, A;
  • Al-Turany, M;
  • Alam, SN;
  • Albuquerque, DSD;
  • Aleksandrov, D;
  • Alessandro, B;
  • Alfaro Molina, R;
  • Ali, Y;
  • Alici, A;
  • Alkin, A;
  • Alme, J;
  • Alt, T;
  • Altenkamper, L;
  • Altsybeev, I;
  • Andrei, C;
  • Andreou, D;
  • Andrews, HA;
  • Andronic, A;
  • Angeletti, M;
  • Anguelov, V;
  • Anson, C;
  • Antičić, T;
  • Antinori, F;
  • Antonioli, P;
  • Anwar, R;
  • Apadula, N;
  • Aphecetche, L;
  • Appelshäuser, H;
  • Arcelli, S;
  • Arnaldi, R;
  • Arnold, OW;
  • Arsene, IC;
  • Arslandok, M;
  • Audurier, B;
  • Augustinus, A;
  • Averbeck, R;
  • Azmi, MD;
  • Badalà, A;
  • Baek, YW;
  • Bagnasco, S;
  • Bailhache, R;
  • Bala, R;
  • Baldisseri, A;
  • Ball, M;
  • Baral, RC;
  • Barbano, AM;
  • Barbera, R;
  • Barile, F;
  • Barioglio, L;
  • Barnaföldi, GG;
  • Barnby, LS;
  • Barret, V;
  • Bartalini, P;
  • Barth, K;
  • Bartsch, E;
  • Bastid, N;
  • Basu, S;
  • Batigne, G;
  • Batyunya, B;
  • Batzing, PC;
  • Bazo Alba, JL;
  • Bearden, IG;
  • Beck, H;
  • Bedda, C;
  • Behera, NK;
  • Belikov, I;
  • Bellini, F;
  • Bello Martinez, H;
  • Bellwied, R;
  • Beltran, LGE;
  • Belyaev, V;
  • Bencedi, G;
  • Beole, S;
  • Bercuci, A;
  • Berdnikov, Y;
  • Berenyi, D;
  • Bertens, RA;
  • Berzano, D;
  • Betev, L;
  • Bhaduri, PP;
  • Bhasin, A;
  • Bhat, IR;
  • Bhatt, H;
  • Bhattacharjee, B;
  • Bhom, J;
  • Bianchi, A;
  • Bianchi, L;
  • Bianchi, N;
  • Bielčík, J
  • et al.

Published Web Location

http://10.0.3.239/jhep10(2018)174
No data is associated with this publication.
Abstract

We report measurements of the production of prompt D0, D+, D*+ and Ds+ mesons in Pb–Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN=5.02 TeV, in the centrality classes 0–10%, 30–50% and 60–80%. The D-meson production yields are measured at mid-rapidity (|y| < 0.5) as a function of transverse momentum (pT). The pT intervals covered in central collisions are: 1 < pT< 50 GeV/c for D0, 2 < pT< 50GeV/c for D+, 3 < pT< 50GeV/c for D*+, and 4 < pT< 16GeV/c for Ds+ mesons. The nuclear modification factors (RAA) for non-strange D mesons (D0, D+, D*+) show minimum values of about 0.2 for pT = 6–10 GeV/c in the most central collisions and are compatible within uncertainties with those measured at sNN=2.76 TeV. For Ds+ mesons, the values of RAA are larger than those of non-strange D mesons, but compatible within uncertainties. In central collisions the average RAA of non-strange D mesons is compatible with that of charged particles for pT> 8 GeV/c, while it is larger at lower pT. The nuclear modification factors for strange and non-strange D mesons are also compared to theoretical models with different implementations of in-medium energy loss.[Figure not available: see fulltext.]

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