In this paper measurements are presented of π±, K ±, p, and p̄ production at midrapidity (|y|<0.5), in Pb-Pb collisions at √sNN=2.76 TeV as a function of centrality. The measurement covers the transverse-momentum (pT) range from 100, 200, and 300 MeV/c up to 3, 3, and 4.6 GeV/c for π, K, and p, respectively. The measured pT 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 pT 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 ∼1.5 lower than the expectation from thermal models.

Centrality dependence of π, K, and p production in Pb-Pb collisions at sqrt[s_{NN}]=2.76 TeV

AGOSTINELLI, ANDREA;A. Alici;ARCELLI, SILVIA;BASILE, MAURIZIO;BELLINI, FRANCESCA;CIFARELLI, LUISA;FALCHIERI, DAVIDE;GUERZONI, BARBARA;SCIOLI, GILDA;
2013

Abstract

In this paper measurements are presented of π±, K ±, p, and p̄ production at midrapidity (|y|<0.5), in Pb-Pb collisions at √sNN=2.76 TeV as a function of centrality. The measurement covers the transverse-momentum (pT) range from 100, 200, and 300 MeV/c up to 3, 3, and 4.6 GeV/c for π, K, and p, respectively. The measured pT 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 pT 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 ∼1.5 lower than the expectation from thermal models.
2013
B. Abelev;J. Adam;D. Adamová;A. M. Adare;M. M. Aggarwal;G. Aglieri Rinella;M. Agnello;A. G. Agocs;A. Agostinelli;Z. Ahammed;N. Ahmad;A. Ahmad Masoodi;S. A. Ahn;S. U. Ahn;M. Ajaz;A. Akindinov;D. Aleksandrov;B. Alessandro;A. Alici;A. Alkin;E. Almaráz Aviña;J. Alme;T. Alt;V. Altini;S. Altinpinar;I. Altsybeev;C. Andrei;A. Andronic;V. Anguelov;J. Anielski;C. Anson;T. Antičić;F. Antinori;P. Antonioli;L. Aphecetche;H. Appelshäuser;N. Arbor;S. Arcelli;A. Arend;N. Armesto;R. Arnaldi;T. Aronsson;I. C. Arsene;M. Arslandok;A. Asryan;A. Augustinus;R. Averbeck;T. C. Awes;J. Äystö;M. D. Azmi;M. Bach;A. Badalà;Y. W. Baek;R. Bailhache;R. Bala;A. Baldisseri;F. Baltasar Dos Santos Pedrosa;J. Bán;R. C. Baral;R. Barbera;F. Barile;G. G. Barnaföldi;L. S. Barnby;V. Barret;J. Bartke;M. Basile;N. Bastid;S. Basu;B. Bathen;G. Batigne;B. Batyunya;C. Baumann;I. G. Bearden;H. Beck;N. K. Behera;I. Belikov;F. Bellini;R. Bellwied;E. Belmont-Moreno;G. Bencedi;S. Beole;I. Berceanu;A. Bercuci;Y. Berdnikov;D. Berenyi;A. A. E. Bergognon;D. Berzano;L. Betev;A. Bhasin;A. K. Bhati;J. Bhom;L. Bianchi;N. Bianchi;J. Bielčík;J. Bielčíková;A. Bilandzic;S. Bjelogrlic;F. Blanco;F. Blanco;D. Blau;C. Blume;M. Boccioli;S. Böttger;A. Bogdanov;H. Bøggild;M. Bogolyubsky;L. Boldizsár;M. Bombara;J. Book;H. Borel;A. Borissov;F. Bossú;M. Botje;E. Botta;E. Braidot;P. Braun-Munzinger;M. Bregant;T. Breitner;T. A. Broker;T. A. Browning;M. Broz;R. Brun;E. Bruna;G. E. Bruno;D. Budnikov;H. Buesching;S. Bufalino;P. Buncic;O. Busch;Z. Buthelezi;D. Caffarri;X. Cai;H. Caines;E. Calvo Villar;P. Camerini;V. Canoa Roman;G. Cara Romeo;F. Carena;W. Carena;N. Carlin Filho;F. Carminati;A. Casanova Díaz;J. Castillo Castellanos;J. F. Castillo Hernandez;E. A. R. Casula;V. Catanescu;C. Cavicchioli;C. Ceballos Sanchez;J. Cepila;P. Cerello;B. Chang;S. Chapeland;J. L. Charvet;S. Chattopadhyay;S. Chattopadhyay;M. Cherney;C. Cheshkov;B. Cheynis;V. Chibante Barroso;D. D. Chinellato;P. Chochula;M. Chojnacki;S. Choudhury;P. Christakoglou;C. H. Christensen;P. Christiansen;T. Chujo;S. U. Chung;C. Cicalo;L. Cifarelli;F. Cindolo;J. Cleymans;F. Colamaria;D. Colella;A. Collu;G. Conesa Balbastre;Z. Conesa del Valle;M. E. Connors;G. Contin;J. G. Contreras;T. M. Cormier;Y. Corrales Morales;P. Cortese;I. Cortés Maldonado;M. R. Cosentino;F. Costa;M. E. Cotallo;E. Crescio;P. Crochet;E. Cruz Alaniz;R. Cruz Albino;E. Cuautle;L. Cunqueiro;A. Dainese;A. Danu;K. Das;I. Das;S. Das;D. Das;S. Dash;A. Dash;S. De;G. O. V. de Barros;A. De Caro;G. de Cataldo;J. de Cuveland;A. De Falco;D. De Gruttola;H. Delagrange;A. Deloff;N. De Marco;E. Dénes;S. De Pasquale;A. Deppman;G. D. Erasmo;R. de Rooij;M. A. Diaz Corchero;D. Di Bari;T. Dietel;C. Di Giglio;S. Di Liberto;A. Di Mauro;P. Di Nezza;R. Divià;Ø. Djuvsland;A. Dobrin;T. Dobrowolski;B. Dönigus;O. Dordic;O. Driga;A. K. Dubey;A. Dubla;L. Ducroux;P. Dupieux;A. K. Dutta Majumdar;D. Elia;D. Emschermann;H. Engel;B. Erazmus;H. A. Erdal;B. Espagnon;M. Estienne;S. Esumi;D. Evans;G. Eyyubova;D. Fabris;J. Faivre;D. Falchieri;A. Fantoni;M. Fasel;R. Fearick;D. Fehlker;L. Feldkamp;D. Felea;A. Feliciello;B. Fenton-Olsen;G. Feofilov;A. Fernández Téllez;A. Ferretti;A. Festanti;J. Figiel;M. A. S. Figueredo;S. Filchagin;D. Finogeev;F. M. Fionda;E. M. Fiore;E. Floratos;M. Floris;S. Foertsch;P. Foka;S. Fokin;E. Fragiacomo;A. Francescon;U. Frankenfeld;U. Fuchs;C. Furget;M. Fusco Girard;J. J. Gaardhøje;M. Gagliardi;A. Gago;M. Gallio;D. R. Gangadharan;P. Ganoti;C. Garabatos;E. Garcia-Solis;C. Gargiulo;I. Garishvili;J. Gerhard;M. Germain;C. Geuna;A. Gheata;M. Gheata;B. Ghidini;P. Ghosh;P. Gianotti;M. R. Girard;P. Giubellino;E. Gladysz-Dziadus;P. Glässel;R. Gomez;E. G. Ferreiro;L. H. González-Trueba;P. González-Zamora;S. Gorbunov;A. Goswami;S. Gotovac;L. K. Graczykowski;R. Grajcarek;A. Grelli;A. Grigoras;C. Grigoras;V. Grigoriev;S. Grigoryan;A. Grigoryan;B. Grinyov;N. Grion;P. Gros;J. F. Grosse-Oetringhaus;J.-Y. Grossiord;R. Grosso;F. Guber;R. Guernane;B. Guerzoni;M. Guilbaud;K. Gulbrandsen;H. Gulkanyan;T. Gunji;R. Gupta;A. Gupta;R. Haake;Ø. Haaland;C. Hadjidakis;M. Haiduc;H. Hamagaki;G. Hamar;B. H. Han;L. D. Hanratty;A. Hansen;Z. Harmanová-Tóthová;J. W. Harris;M. Hartig;A. Harton;D. Hatzifotiadou;S. Hayashi;A. Hayrapetyan;S. T. Heckel;M. Heide;H. Helstrup;A. Herghelegiu;G. Herrera Corral;N. Herrmann;B. A. Hess;K. F. Hetland;B. Hicks;B. Hippolyte;Y. Hori;P. Hristov;I. Hřivnáčová;M. Huang;T. J. Humanic;D. S. Hwang;R. Ichou;R. Ilkaev;I. Ilkiv;M. Inaba;E. Incani;G. M. Innocenti;P. G. Innocenti;M. Ippolitov;M. Irfan;C. Ivan;M. Ivanov;A. Ivanov;V. Ivanov;O. Ivanytskyi;A. Jachołkowski;P. M. Jacobs;H. J. Jang;M. A. Janik;R. Janik;P. H. S. Y. Jayarathna;S. Jena;D. M. Jha;R. T. Jimenez Bustamante;P. G. Jones;H. Jung;A. Jusko;A. B. Kaidalov;S. Kalcher;P. Kaliňák;T. Kalliokoski;A. Kalweit;J. H. Kang;V. Kaplin;A. Karasu Uysal;O. Karavichev;T. Karavicheva;E. Karpechev;A. Kazantsev;U. Kebschull;R. Keidel;M. M. Khan;K. H. Khan;P. Khan;S. A. Khan;A. Khanzadeev;Y. Kharlov;B. Kileng;T. Kim;J. S. Kim;D. J. Kim;S. Kim;M. Kim;B. Kim;M. Kim;D. W. Kim;J. H. Kim;S. Kirsch;I. Kisel;S. Kiselev;A. Kisiel;J. L. Klay;J. Klein;C. Klein-Bösing;M. Kliemant;A. Kluge;M. L. Knichel;A. G. Knospe;M. K. Köhler;T. Kollegger;A. Kolojvari;M. Kompaniets;V. Kondratiev;N. Kondratyeva;A. Konevskikh;V. Kovalenko;M. Kowalski;S. Kox;G. Koyithatta Meethaleveedu;J. Kral;I. Králik;F. Kramer;A. Kravčáková;T. Krawutschke;M. Krelina;M. Kretz;M. Krivda;F. Krizek;M. Krus;E. Kryshen;M. Krzewicki;Y. Kucheriaev;T. Kugathasan;C. Kuhn;P. G. Kuijer;I. Kulakov;J. Kumar;P. Kurashvili;A. Kurepin;A. B. Kurepin;A. Kuryakin;S. Kushpil;V. Kushpil;H. Kvaerno;M. J. Kweon;Y. Kwon;P. Ladrón de Guevara;I. Lakomov;R. Langoy;S. L. La Pointe;C. Lara;A. Lardeux;P. La Rocca;R. Lea;M. Lechman;K. S. Lee;G. R. Lee;S. C. Lee;I. Legrand;J. Lehnert;R. C. Lemmon;M. Lenhardt;V. Lenti;H. León;I. León Monzón;H. León Vargas;P. Lévai;S. Li;J. Lien;R. Lietava;S. Lindal;V. Lindenstruth;C. Lippmann;M. A. Lisa;H. M. Ljunggren;D. F. Lodato;P. I. Loenne;V. R. Loggins;V. Loginov;D. Lohner;C. Loizides;K. K. Loo;X. Lopez;E. López Torres;G. Løvhøiden;X.-G. Lu;P. Luettig;M. Lunardon;J. Luo;G. Luparello;C. Luzzi;R. Ma;K. Ma;D. M. Madagodahettige-Don;A. Maevskaya;M. Mager;D. P. Mahapatra;A. Maire;M. Malaev;I. Maldonado Cervantes;L. Malinina;D. Mal'Kevich;P. Malzacher;A. Mamonov;L. Manceau;L. Mangotra;V. Manko;F. Manso;N. Manukyan;V. Manzari;Y. Mao;M. Marchisone;J. Mareš;G. V. Margagliotti;A. Margotti;A. Marín;C. Markert;M. Marquard;I. Martashvili;N. A. Martin;P. Martinengo;M. I. Martínez;A. Martínez Davalos;G. Martínez García;Y. Martynov;A. Mas;S. Masciocchi;M. Masera;A. Masoni;L. Massacrier;A. Mastroserio;A. Matyja;C. Mayer;J. Mazer;M. A. Mazzoni;F. Meddi;A. Menchaca-Rocha;J. Mercado Pérez;M. Meres;Y. Miake;K. Mikhaylov;L. Milano;J. Milosevic;A. Mischke;A. N. Mishra;D. Miśkowiec;C. Mitu;S. Mizuno;J. Mlynarz;B. Mohanty;L. Molnar;L. Montaño Zetina;M. Monteno;E. Montes;T. Moon;M. Morando;D. A. Moreira De Godoy;S. Moretto;A. Morreale;A. Morsch;V. Muccifora;E. Mudnic;S. Muhuri;M. Mukherjee;H. Müller;M. G. Munhoz;S. Murray;L. Musa;J. Musinsky;B. K. Nandi;R. Nania;E. Nappi;C. Nattrass;T. K. Nayak;S. Nazarenko;A. Nedosekin;M. Nicassio;M. Niculescu;B. S. Nielsen;T. Niida;S. Nikolaev;V. Nikolic;S. Nikulin;V. Nikulin;B. S. Nilsen;M. S. Nilsson;F. Noferini;P. Nomokonov;G. Nooren;A. Nyanin;A. Nyatha;C. Nygaard;J. Nystrand;A. Ochirov;H. Oeschler;S. K. Oh;S. Oh;J. Oleniacz;A. C. Oliveira Da Silva;C. Oppedisano;A. Ortiz Velasquez;A. Oskarsson;P. Ostrowski;J. Otwinowski;K. Oyama;K. Ozawa;Y. Pachmayer;M. Pachr;F. Padilla;P. Pagano;G. Paić;F. Painke;C. Pajares;S. K. Pal;A. Palaha;A. Palmeri;V. Papikyan;G. S. Pappalardo;W. J. Park;A. Passfeld;B. Pastirčák;D. I. Patalakha;V. Paticchio;B. Paul;A. Pavlinov;T. Pawlak;T. Peitzmann;H. Pereira Da Costa;E. Pereira De Oliveira Filho;D. Peresunko;C. E. Pérez Lara;D. Perrino;W. Peryt;A. Pesci;V. Peskov;Y. Pestov;V. Petráček;M. Petran;M. Petris;P. Petrov;M. Petrovici;C. Petta;S. Piano;M. Pikna;P. Pillot;O. Pinazza;L. Pinsky;N. Pitz;D. B. Piyarathna;M. Planinic;M. Płoskoń;J. Pluta;T. Pocheptsov;S. Pochybova;P. L. M. Podesta-Lerma;M. G. Poghosyan;K. Polák;B. Polichtchouk;N. Poljak;A. Pop;S. Porteboeuf-Houssais;V. Pospíšil;B. Potukuchi;S. K. Prasad;R. Preghenella;F. Prino;C. A. Pruneau;I. Pshenichnov;G. Puddu;V. Punin;M. Putiš;J. Putschke;H. Qvigstad;A. Rachevski;A. Rademakers;T. S. Räihä;J. Rak;A. Rakotozafindrabe;L. Ramello;A. Ramírez Reyes;S. Raniwala;R. Raniwala;S. S. Räsänen;B. T. Rascanu;D. Rathee;K. F. Read;J. S. Real;K. Redlich;R. J. Reed;A. Rehman;P. Reichelt;M. Reicher;R. Renfordt;A. R. Reolon;A. Reshetin;F. Rettig;J.-P. Revol;K. Reygers;L. Riccati;R. A. Ricci;T. Richert;M. Richter;P. Riedler;W. Riegler;F. Riggi;M. Rodríguez Cahuantzi;A. Rodriguez Manso;K. Røed;E. Rogochaya;D. Rohr;D. Röhrich;R. Romita;F. Ronchetti;P. Rosnet;S. Rossegger;A. Rossi;C. Roy;P. Roy;A. J. Rubio Montero;R. Rui;R. Russo;E. Ryabinkin;A. Rybicki;S. Sadovsky;K. Šafařík;R. Sahoo;P. K. Sahu;J. Saini;H. Sakaguchi;S. Sakai;D. Sakata;C. A. Salgado;J. Salzwedel;S. Sambyal;V. Samsonov;X. Sanchez Castro;L. Šándor;A. Sandoval;M. Sano;G. Santagati;R. Santoro;J. Sarkamo;E. Scapparone;F. Scarlassara;R. P. Scharenberg;C. Schiaua;R. Schicker;H. R. Schmidt;C. Schmidt;S. Schuchmann;J. Schukraft;T. Schuster;Y. Schutz;K. Schwarz;K. Schweda;G. Scioli;E. Scomparin;R. Scott;P. A. Scott;G. Segato;I. Selyuzhenkov;S. Senyukov;J. Seo;S. Serci;E. Serradilla;A. Sevcenco;A. Shabetai;G. Shabratova;R. Shahoyan;S. Sharma;N. Sharma;S. Rohni;K. Shigaki;K. Shtejer;Y. Sibiriak;E. Sicking;S. Siddhanta;T. Siemiarczuk;D. Silvermyr;C. Silvestre;G. Simatovic;G. Simonetti;R. Singaraju;R. Singh;S. Singha;V. Singhal;T. Sinha;B. C. Sinha;B. Sitar;M. Sitta;T. B. Skaali;K. Skjerdal;R. Smakal;N. Smirnov;R. J. M. Snellings;C. Søgaard;R. Soltz;H. Son;J. Song;M. Song;C. Soos;F. Soramel;I. Sputowska;M. Spyropoulou-Stassinaki;B. K. Srivastava;J. Stachel;I. Stan;G. Stefanek;M. Steinpreis;E. Stenlund;G. Steyn;J. H. Stiller;D. Stocco;M. Stolpovskiy;P. Strmen;A. A. P. Suaide;M. A. Subieta Vásquez;T. Sugitate;C. Suire;R. Sultanov;M. Šumbera;T. Susa;T. J. M. Symons;A. Szanto de Toledo;I. Szarka;A. Szczepankiewicz;M. Szymański;J. Takahashi;M. A. Tangaro;J. D. Tapia Takaki;A. Tarantola Peloni;A. Tarazona Martinez;A. Tauro;G. Tejeda Muñoz;A. Telesca;A. Ter Minasyan;C. Terrevoli;J. Thäder;D. Thomas;R. Tieulent;A. R. Timmins;D. Tlusty;A. Toia;H. Torii;L. Toscano;V. Trubnikov;D. Truesdale;W. H. Trzaska;T. Tsuji;A. Tumkin;R. Turrisi;T. S. Tveter;J. Ulery;K. Ullaland;J. Ulrich;A. Uras;G. M. Urciuoli;G. L. Usai;M. Vajzer;M. Vala;L. Valencia Palomo;P. Vande Vyvre;M. van Leeuwen;L. Vannucci;A. Vargas;R. Varma;M. Vasileiou;A. Vasiliev;V. Vechernin;M. Veldhoen;M. Venaruzzo;E. Vercellin;S. Vergara;R. Vernet;M. Verweij;L. Vickovic;G. Viesti;J. Viinikainen;Z. Vilakazi;O. Villalobos Baillie;L. Vinogradov;Y. Vinogradov;A. Vinogradov;T. Virgili;Y. P. Viyogi;A. Vodopyanov;M. A. Völkl;S. Voloshin;K. Voloshin;G. Volpe;B. von Haller;I. Vorobyev;D. Vranic;J. Vrláková;B. Vulpescu;A. Vyushin;V. Wagner;B. Wagner;R. Wan;Y. Wang;M. Wang;D. Wang;Y. Wang;K. Watanabe;M. Weber;J. P. Wessels;U. Westerhoff;J. Wiechula;J. Wikne;M. Wilde;A. Wilk;G. Wilk;M. C. S. Williams;B. Windelband;L. Xaplanteris Karampatsos;C. G. Yaldo;Y. Yamaguchi;H. Yang;S. Yang;S. Yasnopolskiy;J. Yi;Z. Yin;I.-K. Yoo;J. Yoon;W. Yu;X. Yuan;I. Yushmanov;V. Zaccolo;C. Zach;C. Zampolli;S. Zaporozhets;A. Zarochentsev;P. Závada;N. Zaviyalov;H. Zbroszczyk;P. Zelnicek;I. S. Zgura;M. Zhalov;X. Zhang;H. Zhang;Y. Zhou;F. Zhou;D. Zhou;J. Zhu;J. Zhu;X. Zhu;H. Zhu;A. Zichichi;A. Zimmermann;G. Zinovjev;Y. Zoccarato;M. Zynovyev;M. Zyzak
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/388080
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 615
  • ???jsp.display-item.citation.isi??? 534
social impact