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Centrality dependence of pi, K, and p production in Pb-Pb collisions at root s(NN)=2.76 TeV

Abelev, B.; Adam, J.; Adamova, D.; Adare, A. M.; Aggarwal, M. M.; Rinella, G. Aglieri; Agnello, M.; Agocs, A. G.; Agostinelli, A. and Ahammed, Z., et al. (2013) In Physical Review C (Nuclear Physics) 88(4).
Abstract
In this paper measurements are presented of pi(+/-), K-+/-, p, and (p) over bar production at midrapidity (vertical bar y vertical bar < 0.5), in Pb-Pb collisions at root s(NN) = 2.76 TeV as a function of centrality. The measurement covers the transverse-momentum (p(T)) range from 100, 200, and 300 MeV/c up to 3, 3, and 4.6 GeV/c for pi, K, and p, respectively. The measured p(T) distributions and yields are compared to expectations based on hydrodynamic, thermal and recombination models. The spectral shapes of central collisions show a stronger radial flow than measured at lower energies, which can be described in hydrodynamic models. In peripheral collisions, the p(T) distributions are not well reproduced by hydrodynamic models. Ratios... (More)
In this paper measurements are presented of pi(+/-), K-+/-, p, and (p) over bar production at midrapidity (vertical bar y vertical bar < 0.5), in Pb-Pb collisions at root s(NN) = 2.76 TeV as a function of centrality. The measurement covers the transverse-momentum (p(T)) range from 100, 200, and 300 MeV/c up to 3, 3, and 4.6 GeV/c for pi, K, and p, respectively. The measured p(T) distributions and yields are compared to expectations based on hydrodynamic, thermal and recombination models. The spectral shapes of central collisions show a stronger radial flow than measured at lower energies, which can be described in hydrodynamic models. In peripheral collisions, the p(T) distributions are not well reproduced by hydrodynamic models. Ratios of integrated particle yields are found to be nearly independent of centrality. The yield of protons normalized to pions is a factor similar to 1.5 lower than the expectation from thermal models. (Less)
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Physical Review C (Nuclear Physics)
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88
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American Physical Society
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  • scopus:84885698724
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0556-2813
DOI
10.1103/PhysRevC.88.044910
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91bc1c95-f9ca-4cd6-808b-94f7fe955f79 (old id 4158099)
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@article{91bc1c95-f9ca-4cd6-808b-94f7fe955f79,
  abstract     = {In this paper measurements are presented of pi(+/-), K-+/-, p, and (p) over bar production at midrapidity (vertical bar y vertical bar &lt; 0.5), in Pb-Pb collisions at root s(NN) = 2.76 TeV as a function of centrality. The measurement covers the transverse-momentum (p(T)) range from 100, 200, and 300 MeV/c up to 3, 3, and 4.6 GeV/c for pi, K, and p, respectively. The measured p(T) distributions and yields are compared to expectations based on hydrodynamic, thermal and recombination models. The spectral shapes of central collisions show a stronger radial flow than measured at lower energies, which can be described in hydrodynamic models. In peripheral collisions, the p(T) distributions are not well reproduced by hydrodynamic models. Ratios of integrated particle yields are found to be nearly independent of centrality. The yield of protons normalized to pions is a factor similar to 1.5 lower than the expectation from thermal models.},
  articleno    = {044910},
  author       = {Abelev, B. and Adam, J. and Adamova, D. and Adare, A. M. and Aggarwal, M. M. and Rinella, G. Aglieri and Agnello, M. and Agocs, A. G. and Agostinelli, A. and Ahammed, Z. and Ahmad, N. and Masoodi, A. Ahmad and Ahn, S. A. and Ahn, S. U. and Ajaz, M. and Akindinov, A. and Aleksandrov, D. and Alessandro, B. and Alici, A. and Alkin, A. and Almaraz Avina, E. and Alme, J. and Alt, T. and Altini, V. and Altinpinar, S. and Altsybeev, I. and Andrei, C. and Andronic, A. and Anguelov, V. and Anielski, J. and Anson, C. and Anticic, T. and Antinori, F. and Antonioli, P. and Aphecetche, L. and Appelshaeuser, H. and Arbor, N. and Arcelli, S. and Arend, A. and Armesto, N. and Arnaldi, R. and Aronsson, T. and Arsene, I. C. and Arslandok, M. and Asryan, A. and Augustinus, A. and Averbeck, R. and Awes, T. C. and Aysto, J. and Azmi, M. D. and Bach, M. and Badala, A. and Baek, Y. W. and Bailhache, R. and Bala, R. and Baldisseri, A. and Pedrosa, F. Baltasar Dos Santos and Ban, J. and Baral, R. C. and Barbera, R. and Barile, F. and Barnafoeldi, G. G. and Barnby, L. S. and Barret, V. and Bartke, J. and Basile, M. and Bastid, N. and Basu, S. and Bathen, B. and Batigne, G. and Batyunya, B. and Baumann, C. and Bearden, I. G. and Beck, H. and Behera, N. K. and Belikov, I. and Bellini, F. and Bellwied, R. and Belmont-Moreno, E. and Bencedi, G. and Beole, S. and Berceanu, I. and Bercuci, A. and Berdnikov, Y. and Berenyi, D. and Bergognon, A. A. E. and Berzano, D. and Betev, L. and Bhasin, A. and Bhati, A. K. and Bhom, J. and Bianchi, L. and Bianchi, N. and Bielcik, J. and Bielcikova, J. and Bilandzic, A. and Bjelogrlic, S. and Blanco, F. and Blanco, F. and Blau, D. and Blume, C. and Boccioli, M. and Boettger, S. and Bogdanov, A. and Boggild, H. and Bogolyubsky, M. and Boldizsar, L. and Bombara, M. and Book, J. and Borel, H. and Borissov, A. and Bossu, F. and Botje, M. and Botta, E. and Braidot, E. and Braun-Munzinger, P. and Bregant, M. and Breitner, T. and Broker, T. A. and Browning, T. A. and Broz, M. and Brun, R. and Bruna, E. and Bruno, G. E. and Budnikov, D. and Buesching, H. and Bufalino, S. and Buncic, P. and Busch, O. and Buthelezi, Z. and Caffarri, D. and Cai, X. and Caines, H. and Calvo Villar, E. and Camerini, P. and Canoa Roman, V. and Romeo, G. Cara and Carena, F. and Carena, W. and Carlin Filho, N. and Carminati, F. and Diaz, A. Casanova and Castellanos, J. Castillo and Hernandez, J. F. Castillo and Casula, E. A. R. and Catanescu, V. and Cavicchioli, C. and Ceballos Sanchez, C. and Cepila, J. and Cerello, P. and Chang, B. and Chapeland, S. and Charvet, J. L. and Chattopadhyay, S. and Chattopadhyay, S. and Cherney, M. and Cheshkov, C. and Cheynis, B. and Barroso, V. Chibante and Chinellato, D. D. and Chochula, P. and Chojnacki, M. and Choudhury, S. and Christakoglou, P. and Christensen, C. H. and Christiansen, Peter and Chujo, T. and Chung, S. U. and Cicalo, C. and Cifarelli, L. and Cindolo, F. and Cleymans, J. and Colamaria, F. and Colella, D. and Collu, A. and Balbastre, G. Conesa and del Valle, Z. Conesa and Connors, M. E. and Contin, G. and Contreras, J. G. and Cormier, M. and Morales, Y. Corrales and Cortese, P. and Cortes Maldonado, I. and Cosentino, M. R. and Costa, F. and Cotallo, M. E. and Crescio, E. and Crochet, P. and Cruz Alaniz, E. and Cruz Albino, R. and Cuautle, E. and Cunqueiro, L. and Dainese, A. and Danu, A. and Das, K. and Das, I. and Das, S. and Das, D. and Dash, S. and Dash, A. and De, S. and de Barros, G. O. V. and De Caro, A. and de Cataldo, G. and de Cuveland, J. and De Falco, A. and De Gruttola, D. and Delagrange, H. and Deloff, A. and De Marco, N. and Denes, E. and De Pasquale, S. and Deppman, A. and Erasmo, G. D. and de Rooij, R. and Corchero, M. A. Diaz and Di Bari, D. and Dietel, T. and Di Giglio, C. and Di Liberto, S. and Di Mauro, A. and Di Nezza, P. and Divia, R. and Djuvsland, O. and Dobrin, Alexandru and Dobrowolski, T. and Doenigus, B. and Dordic, O. and Driga, O. and Dubey, A. K. and Dubla, A. and Ducroux, L. and Dupieux, P. and Majumdar, A. K. Dutta and Elia, D. and Emschermann, D. and Engel, H. and Erazmus, B. and Erdal, H. A. and Espagnon, B. and Estienne, M. and Esumi, S. and Evans, D. and Eyyubova, G. and Fabris, D. and Faivre, J. and Falchieri, D. and Fantoni, A. and Fasel, M. and Fearick, R. and Fehlker, D. and Feldkamp, L. and Felea, D. and Feliciello, A. and Fenton-Olsen, B. and Feofilov, G. and Fernandez Tellez, A. and Ferretti, A. and Festanti, A. and Figiel, J. and Figueredo, M. A. S. and Filchagin, S. and Finogeev, D. and Fionda, F. M. and Fiore, E. M. and Floratos, E. and Floris, M. and Foertsch, S. and Foka, P. and Fokin, S. and Fragiacomo, E. and Francescon, A. and Frankenfeld, U. and Fuchs, U. and Furget, C. and Girard, M. Fusco and Gaardhoje, J. J. and Gagliardi, M. and Gago, A. and Gallio, M. and Gangadharan, D. R. and Ganoti, P. and Garabatos, C. and Garcia-Solis, E. and Gargiulo, C. and Garishvili, I. and Gerhard, J. and Germain, M. and Geuna, C. and Gheata, A. and Gheata, M. and Ghidini, B. and Ghosh, P. and Gianotti, P. and Girard, M. 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T. and Heide, M. and Helstrup, H. and Herghelegiu, A. and Herrera Corral, G. and Herrmann, N. and Hess, B. A. and Hetland, K. F. and Hicks, B. and Hippolyte, B. and Hori, Y. and Hristov, P. and Hrivnacova, I. and Huang, M. and Humanic, T. J. and Hwang, D. S. and Ichou, R. and Ilkaev, R. and Ilkiv, I. and Inaba, M. and Incani, E. and Innocenti, G. M. and Innocenti, P. G. and Ippolitov, M. and Irfan, M. and Ivan, C. and Ivanov, M. and Ivanov, A. and Ivanov, V. and Ivanytskyi, O. and Jacholkowski, A. and Jacobs, P. M. and Jang, H. J. and Janik, M. A. and Janik, R. and Jayarathna, P. H. S. Y. and Jena, S. and Jha, D. M. and Jimenez Bustamante, R. T. and Jones, P. G. and Jung, H. and Jusko, A. and Kaidalov, A. B. and Kalcher, S. and Kalinak, P. and Kalliokoski, T. and Kalweit, A. and Kang, J. H. and Kaplin, V. and Uysal, A. Karasu and Karavichev, O. and Karavicheva, T. and Karpechev, E. and Kazantsev, A. and Kebschull, U. and Keidel, R. and Khan, M. M. and Khan, K. H. and Khan, P. and Khan, S. A. and Khanzadeev, A. and Kharlov, Y. and Kileng, B. and Kim, T. and Kim, J. S. and Kim, D. J. and Kim, S. and Kim, M. and Kim, B. and Kim, M. and Kim, D. W. and Kim, J. H. and Kirsch, S. and Kisel, I. and Kiselev, S. and Kisiel, A. and Klay, J. L. and Klein, J. and Klein-Boesing, C. and Kliemant, M. and Kluge, A. and Knichel, M. L. and Knospe, A. G. and Koehler, M. K. and Kollegger, T. and Kolojvari, A. and Kompaniets, M. and Kondratiev, V. and Kondratyeva, N. and Konevskikh, A. and Kovalenko, V. and Kowalski, M. and Kox, S. and Meethaleveedu, G. Koyithatta and Kral, J. and Kralik, I. and Kramer, F. and Kravcakova, A. and Krawutschke, T. and Krelina, M. and Kretz, M. and Krivda, M. and Krizek, F. and Krus, M. and Kryshen, E. and Krzewicki, M. and Kucheriaev, Y. and Kugathasan, T. and Kuhn, C. and Kuijer, P. G. and Kulakov, I. and Kumar, J. and Kurashvili, P. and Kurepin, A. and Kurepin, A. 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N. and Miskowiec, D. and Mitu, C. and Mizuno, S. and Mlynarz, J. and Mohanty, B. and Molnar, L. and Montano Zetina, L. and Monteno, M. and Montes, E. and Moon, T. and Morando, M. and Moreira de Godoy, D. A. and Moretto, S. and Morreale, A. and Morsch, A. and Muccifora, V. and Mudnic, E. and Muhuri, S. and Mukherjee, M. and Mueller, H. and Munhoz, M. G. and Murray, S. and Musa, L. and Musinsky, J. and Nandi, B. K. and Nania, R. and Nappi, E. and Nattrass, C. and Nayak, T. K. and Nazarenko, S. and Nedosekin, A. and Nicassio, M. and Niculescu, M. and Nielsen, B. S. and Niida, T. and Nikolaev, S. and Nikolic, V. and Nikulin, S. and Nikulin, V. and Nilsen, B. S. and Nilsson, M. S. and Noferini, F. and Nomokonov, P. and Nooren, G. and Nyanin, A. and Nyatha, A. and Nygaard, C. and Nystrand, J. and Ochirov, A. and Oeschler, H. and Oh, S. K. and Oh, S. and Oleniacz, J. and Oliveira da Silva, A. 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  issn         = {0556-2813},
  language     = {eng},
  number       = {4},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Centrality dependence of pi, K, and p production in Pb-Pb collisions at root s(NN)=2.76 TeV},
  url          = {http://dx.doi.org/10.1103/PhysRevC.88.044910},
  volume       = {88},
  year         = {2013},
}