In this Letter we report the first results on pi(+/-), K-+/-, p, and (p) over bar production at midrapidity (vertical bar y vertical bar < 0.5) in central Pb-Pb collisions at root s(NN) = 2.76 TeV, measured by the ALICE experiment at the LHC. The p(T) distributions and yields are compared to previous results at root s(NN) = 200 GeV and expectations from hydrodynamic and thermal models. The spectral shapes indicate a strong increase of the radial flow velocity with root s(NN), which in hydrodynamic models is expected as a consequence of the increasing particle density. While the K/pi ratio is in line with predictions from the thermal model, the p/pi ratio is found to be lower by a factor of about 1.5. This deviation from thermal model expectations is still to be understood.

B. Abelev, J. Adam, D. Adamová, A. Adare, M. Aggarwal, G. Aglieri Rinella, et al. (2012). Pion, Kaon, and Proton Production in Central Pb-Pb Collisions at sqrt[s_{NN}]=2.76  TeV. PHYSICAL REVIEW LETTERS, 109, 1-11 [10.1103/PhysRevLett.109.252301].

Pion, Kaon, and Proton Production in Central Pb-Pb Collisions at sqrt[s_{NN}]=2.76  TeV

AGOSTINELLI, ANDREA;A. Alici;ARCELLI, SILVIA;BASILE, MAURIZIO;BELLINI, FRANCESCA;CIFARELLI, LUISA;GUERZONI, BARBARA;SCIOLI, GILDA;
2012

Abstract

In this Letter we report the first results on pi(+/-), K-+/-, p, and (p) over bar production at midrapidity (vertical bar y vertical bar < 0.5) in central Pb-Pb collisions at root s(NN) = 2.76 TeV, measured by the ALICE experiment at the LHC. The p(T) distributions and yields are compared to previous results at root s(NN) = 200 GeV and expectations from hydrodynamic and thermal models. The spectral shapes indicate a strong increase of the radial flow velocity with root s(NN), which in hydrodynamic models is expected as a consequence of the increasing particle density. While the K/pi ratio is in line with predictions from the thermal model, the p/pi ratio is found to be lower by a factor of about 1.5. This deviation from thermal model expectations is still to be understood.
2012
B. Abelev, J. Adam, D. Adamová, A. Adare, M. Aggarwal, G. Aglieri Rinella, et al. (2012). Pion, Kaon, and Proton Production in Central Pb-Pb Collisions at sqrt[s_{NN}]=2.76  TeV. PHYSICAL REVIEW LETTERS, 109, 1-11 [10.1103/PhysRevLett.109.252301].
B. Abelev;J. Adam;D. Adamová;A. Adare;M. Aggarwal;G. Aglieri Rinella;A. Agocs;A. Agostinelli;S. Aguilar Salazar;Z. Ahammed;N. Ahmad;A. Ahmad Masoodi;S. Ahn;S. Ahn;A. Akindinov;D. Aleksandrov;B. Alessandro;R. Alfaro Molina;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. Arsene;M. Arslandok;A. Asryan;A. Augustinus;R. Averbeck;T. Awes;J. Äystö;M. Azmi;M. Bach;A. Badalà;Y. Baek;R. Bailhache;R. Bala;R. Baldini Ferroli;A. Baldisseri;A. Baldit;F. Baltasar Dos Santos Pedrosa;J. Bán;R. Baral;R. Barbera;F. Barile;G. Barnaföldi;L. Barnby;V. Barret;J. Bartke;M. Basile;N. Bastid;S. Basu;B. Bathen;G. Batigne;B. Batyunya;C. Baumann;I. Bearden;H. Beck;N. Behera;I. Belikov;F. Bellini;R. Bellwied;E. Belmont-Moreno;G. Bencedi;S. Beole;I. Berceanu;A. Bercuci;Y. Berdnikov;D. Berenyi;A. Bergognon;D. Berzano;L. Betev;A. Bhasin;A. Bhati;J. Bhom;L. Bianchi;N. Bianchi;C. Bianchin;J. Bielčík;J. Bielčíková;A. Bilandzic;S. Bjelogrlic;F. Blanco;F. Blanco;D. Blau;C. Blume;M. Boccioli;N. Bock;S. Böttger;A. Bogdanov;H. Bøggild;M. Bogolyubsky;L. Boldizsár;M. Bombara;J. Book;H. Borel;A. Borissov;S. Bose;F. Bossú;M. Botje;E. Botta;B. Boyer;E. Braidot;P. Braun-Munzinger;M. Bregant;T. Breitner;T. Browning;M. Broz;R. Brun;E. Bruna;G. Bruno;D. Budnikov;H. Buesching;S. Bufalino;O. Busch;Z. Buthelezi;D. Caballero Orduna;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. Castillo Hernandez;E. Casula;V. Catanescu;C. Cavicchioli;C. Ceballos Sanchez;J. Cepila;P. Cerello;B. Chang;S. Chapeland;J. Charvet;S. Chattopadhyay;S. Chattopadhyay;I. Chawla;M. Cherney;C. Cheshkov;B. Cheynis;V. Chibante Barroso;D. Chinellato;P. Chochula;M. Chojnacki;S. Choudhury;P. Christakoglou;C. Christensen;P. Christiansen;T. Chujo;S. Chung;C. Cicalo;L. Cifarelli;F. Cindolo;J. Cleymans;F. Coccetti;F. Colamaria;D. Colella;G. Conesa Balbastre;Z. Conesa del Valle;P. Constantin;G. Contin;J. Contreras;T. Cormier;Y. Corrales Morales;P. Cortese;I. Cortés Maldonado;M. Cosentino;F. Costa;M. Cotallo;E. Crescio;P. Crochet;E. Cruz Alaniz;E. Cuautle;L. Cunqueiro;A. Dainese;H. Dalsgaard;A. Danu;I. Das;D. Das;K. Das;S. Dash;A. Dash;S. De;G. de Barros;A. De Caro;G. de Cataldo;J. de Cuveland;A. De Falco;D. De Gruttola;H. Delagrange;A. Deloff;V. Demanov;N. De Marco;E. Dénes;S. De Pasquale;A. Deppman;G. Erasmo;R. de Rooij;M. 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;I. Domínguez;B. Dönigus;O. Dordic;O. Driga;A. Dubey;A. Dubla;L. Ducroux;P. Dupieux;A. Dutta Majumdar;M. Dutta Majumdar;D. Elia;D. Emschermann;H. Engel;B. Erazmus;H. Erdal;B. Espagnon;M. Estienne;S. Esumi;D. Evans;G. Eyyubova;D. Fabris;J. Faivre;D. Falchieri;A. Fantoni;M. Fasel;R. Fearick;A. Fedunov;D. Fehlker;L. Feldkamp;D. Felea;B. Fenton-Olsen;G. Feofilov;A. Fernández Téllez;A. Ferretti;R. Ferretti;A. Festanti;J. Figiel;M. Figueredo;S. Filchagin;D. Finogeev;F. Fionda;E. Fiore;M. Floris;S. Foertsch;P. Foka;S. Fokin;E. Fragiacomo;A. Francescon;U. Frankenfeld;U. Fuchs;C. Furget;M. Fusco Girard;J. Gaardhøje;M. Gagliardi;A. Gago;M. Gallio;D. Gangadharan;P. Ganoti;C. Garabatos;E. Garcia-Solis;I. Garishvili;J. Gerhard;M. Germain;C. Geuna;M. Gheata;A. Gheata;B. Ghidini;P. Ghosh;P. Gianotti;M. Girard;P. Giubellino;E. Gladysz-Dziadus;P. Glässel;R. Gomez;E. Ferreiro;L. González-Trueba;P. González-Zamora;S. Gorbunov;A. Goswami;S. Gotovac;V. Grabski;L. Graczykowski;R. Grajcarek;A. Grelli;C. Grigoras;A. Grigoras;V. Grigoriev;S. Grigoryan;A. Grigoryan;B. Grinyov;N. Grion;P. Gros;J. Grosse-Oetringhaus;J.-Y. Grossiord;R. Grosso;F. Guber;R. Guernane;C. Guerra Gutierrez;B. Guerzoni;M. Guilbaud;K. Gulbrandsen;T. Gunji;R. Gupta;A. Gupta;H. Gutbrod;Ø. Haaland;C. Hadjidakis;M. Haiduc;H. Hamagaki;G. Hamar;B. Han;L. Hanratty;A. Hansen;Z. Harmanová-Tóthová;J. Harris;M. Hartig;D. Hasegan;D. Hatzifotiadou;A. Hayrapetyan;S. Heckel;M. Heide;H. Helstrup;A. Herghelegiu;G. Herrera Corral;N. Herrmann;B. Hess;K. Hetland;B. Hicks;P. Hille;B. Hippolyte;T. Horaguchi;Y. Hori;P. Hristov;I. Hřivnáčová;M. Huang;T. Humanic;D. Hwang;R. Ichou;R. Ilkaev;I. Ilkiv;M. Inaba;E. Incani;G. Innocenti;P. Innocenti;M. Ippolitov;M. Irfan;C. Ivan;M. Ivanov;A. Ivanov;V. Ivanov;O. Ivanytskyi;P. Jacobs;H. Jang;R. Janik;M. Janik;P. Jayarathna;S. Jena;D. Jha;R. Jimenez Bustamante;L. Jirden;P. Jones;H. Jung;A. Jusko;A. Kaidalov;V. Kakoyan;S. Kalcher;P. Kaliňák;T. Kalliokoski;A. Kalweit;J. Kang;V. Kaplin;A. Karasu Uysal;O. Karavichev;T. Karavicheva;E. Karpechev;A. Kazantsev;U. Kebschull;R. Keidel;P. Khan;M. Khan;S. Khan;A. Khanzadeev;Y. Kharlov;B. Kileng;M. Kim;D. Kim;D. Kim;J. Kim;J. Kim;T. Kim;M. Kim;S. Kim;S. Kim;B. Kim;S. Kirsch;I. Kisel;S. Kiselev;A. Kisiel;J. Klay;J. Klein;C. Klein-Bösing;M. Kliemant;A. Kluge;M. Knichel;A. Knospe;K. Koch;M. Köhler;T. Kollegger;A. Kolojvari;V. Kondratiev;N. Kondratyeva;A. Konevskikh;A. Korneev;R. Kour;M. Kowalski;S. Kox;G. Koyithatta Meethaleveedu;J. Kral;I. Králik;F. Kramer;I. Kraus;T. Krawutschke;M. Krelina;M. Kretz;M. Krivda;F. Krizek;M. Krus;E. Kryshen;M. Krzewicki;Y. Kucheriaev;T. Kugathasan;C. Kuhn;P. Kuijer;I. Kulakov;J. Kumar;P. Kurashvili;A. Kurepin;A. Kurepin;A. Kuryakin;S. Kushpil;V. Kushpil;H. Kvaerno;M. Kweon;Y. Kwon;P. Ladrón de Guevara;I. Lakomov;R. Langoy;S. La Pointe;C. Lara;A. Lardeux;P. La Rocca;C. Lazzeroni;R. Lea;Y. Le Bornec;M. Lechman;K. Lee;G. Lee;S. Lee;F. Lefèvre;J. Lehnert;L. Leistam;M. Lenhardt;V. Lenti;H. León;M. Leoncino;I. León Monzón;H. León Vargas;P. Lévai;J. Lien;R. Lietava;S. Lindal;V. Lindenstruth;C. Lippmann;M. Lisa;L. Liu;V. Loggins;V. Loginov;S. Lohn;D. Lohner;C. Loizides;K. Loo;X. Lopez;E. López Torres;G. Løvhøiden;X.-G. Lu;P. Luettig;M. Lunardon;J. Luo;G. Luparello;L. Luquin;C. Luzzi;K. Ma;R. Ma;D. Madagodahettige-Don;A. Maevskaya;M. Mager;D. 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;V. Manzari;Y. Mao;M. Marchisone;J. Mareš;G. Margagliotti;A. Margotti;A. Marín;C. Marin Tobon;C. Markert;I. Martashvili;P. Martinengo;M. Martínez;A. Martínez Davalos;G. Martínez García;Y. Martynov;A. Mas;S. Masciocchi;M. Masera;A. Masoni;L. Massacrier;A. Mastroserio;Z. Matthews;A. Matyja;C. Mayer;J. Mazer;M. Mazzoni;F. Meddi;A. Menchaca-Rocha;J. Mercado Pérez;M. Meres;Y. Miake;L. Milano;J. Milosevic;A. Mischke;A. Mishra;D. Miśkowiec;C. Mitu;J. Mlynarz;B. Mohanty;L. Molnar;L. Montaño Zetina;M. Monteno;E. Montes;T. Moon;M. Morando;D. Moreira De Godoy;S. Moretto;A. Morsch;V. Muccifora;E. Mudnic;S. Muhuri;M. Mukherjee;H. Müller;M. Munhoz;L. Musa;A. Musso;B. Nandi;R. Nania;E. Nappi;C. Nattrass;N. Naumov;S. Navin;T. Nayak;S. Nazarenko;G. Nazarov;A. Nedosekin;M. Nicassio;M. Niculescu;B. Nielsen;T. Niida;S. Nikolaev;V. Nikolic;S. Nikulin;V. Nikulin;B. Nilsen;M. Nilsson;F. Noferini;P. Nomokonov;G. Nooren;N. Novitzky;A. Nyanin;A. Nyatha;C. Nygaard;J. Nystrand;A. Ochirov;H. Oeschler;S. Oh;S. Oh;J. Oleniacz;C. Oppedisano;A. Ortiz Velasquez;G. Ortona;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. Pal;A. Palaha;A. Palmeri;V. Papikyan;G. Pappalardo;W. Park;A. Passfeld;B. Pastirčák;D. Patalakha;V. Paticchio;A. Pavlinov;T. Pawlak;T. Peitzmann;H. Pereira Da Costa;E. Pereira De Oliveira Filho;D. Peresunko;C. Pérez Lara;E. Perez Lezama;D. Perini;D. Perrino;W. Peryt;A. Pesci;V. Peskov;Y. Pestov;V. Petráček;M. Petran;M. Petris;P. Petrov;M. Petrovici;C. Petta;S. Piano;A. Piccotti;M. Pikna;P. Pillot;O. Pinazza;L. Pinsky;N. Pitz;D. Piyarathna;M. Planinic;M. Płoskoń;J. Pluta;T. Pocheptsov;S. Pochybova;P. Podesta-Lerma;M. Poghosyan;K. Polák;B. Polichtchouk;A. Pop;S. Porteboeuf-Houssais;V. Pospíšil;B. Potukuchi;S. Prasad;R. Preghenella;F. Prino;C. Pruneau;I. Pshenichnov;S. Puchagin;G. Puddu;A. Pulvirenti;V. Punin;M. Putiš;J. Putschke;E. Quercigh;H. Qvigstad;A. Rachevski;A. Rademakers;T. Räihä;J. Rak;A. Rakotozafindrabe;L. Ramello;A. Ramírez Reyes;S. Raniwala;R. Raniwala;S. Räsänen;B. Rascanu;D. Rathee;K. Read;J. Real;K. Redlich;P. Reichelt;M. Reicher;R. Renfordt;A. Reolon;A. Reshetin;F. Rettig;J.-P. Revol;K. Reygers;L. Riccati;R. Ricci;T. Richert;M. Richter;P. Riedler;W. Riegler;F. Riggi;B. Rodrigues Fernandes Rabacal;M. Rodríguez Cahuantzi;A. Rodriguez Manso;K. Røed;D. Rohr;D. Röhrich;R. Romita;F. Ronchetti;P. Rosnet;S. Rossegger;A. Rossi;P. Roy;C. Roy;A. Rubio Montero;R. Rui;R. Russo;E. Ryabinkin;A. Rybicki;S. Sadovsky;K. Šafařík;R. Sahoo;P. Sahu;J. Saini;H. Sakaguchi;S. Sakai;D. Sakata;C. Salgado;J. Salzwedel;S. Sambyal;V. Samsonov;X. Sanchez Castro;L. Šándor;A. Sandoval;M. Sano;S. Sano;R. Santo;R. Santoro;J. Sarkamo;E. Scapparone;F. Scarlassara;R. Scharenberg;C. Schiaua;R. Schicker;H. Schmidt;C. Schmidt;S. Schreiner;S. Schuchmann;J. Schukraft;Y. Schutz;K. Schwarz;K. Schweda;G. Scioli;E. Scomparin;P. Scott;R. Scott;G. Segato;I. Selyuzhenkov;S. Senyukov;J. Seo;S. Serci;E. Serradilla;A. Sevcenco;A. Shabetai;G. Shabratova;R. Shahoyan;N. Sharma;S. Sharma;S. Rohni;K. Shigaki;M. Shimomura;K. Shtejer;Y. Sibiriak;M. Siciliano;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. Sinha;B. Sitar;M. Sitta;T. Skaali;K. Skjerdal;R. Smakal;N. Smirnov;R. Snellings;C. Søgaard;R. Soltz;H. Son;J. Song;M. Song;C. Soos;F. Soramel;I. Sputowska;M. Spyropoulou-Stassinaki;B. Srivastava;J. Stachel;I. Stan;I. Stan;G. Stefanek;M. Steinpreis;E. Stenlund;G. Steyn;J. Stiller;D. Stocco;M. Stolpovskiy;K. Strabykin;P. Strmen;A. Suaide;M. Subieta Vásquez;T. Sugitate;C. Suire;M. Sukhorukov;R. Sultanov;M. Šumbera;T. Susa;T. Symons;A. Szanto de Toledo;I. Szarka;A. Szczepankiewicz;A. Szostak;M. Szymański;J. Takahashi;J. Tapia Takaki;A. Tauro;G. Tejeda Muñoz;A. Telesca;C. Terrevoli;J. Thäder;D. Thomas;R. Tieulent;A. Timmins;D. Tlusty;A. Toia;H. Torii;L. Toscano;V. Trubnikov;D. Truesdale;W. Trzaska;T. Tsuji;A. Tumkin;R. Turrisi;T. Tveter;J. Ulery;K. Ullaland;J. Ulrich;A. Uras;J. Urbán;G. Urciuoli;G. Usai;M. Vajzer;M. Vala;L. Valencia Palomo;S. Vallero;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;O. Vikhlyantsev;Z. Vilakazi;O. Villalobos Baillie;Y. Vinogradov;A. Vinogradov;L. Vinogradov;T. Virgili;Y. Viyogi;A. Vodopyanov;S. Voloshin;K. Voloshin;G. Volpe;B. von Haller;D. Vranic;G. Øvrebekk;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. Wessels;U. Westerhoff;J. Wiechula;J. Wikne;M. Wilde;A. Wilk;G. Wilk;M. Williams;B. Windelband;L. Xaplanteris Karampatsos;C. Yaldo;Y. Yamaguchi;S. Yang;H. 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. Zgura;M. Zhalov;H. Zhang;X. Zhang;D. Zhou;Y. Zhou;F. Zhou;J. Zhu;X. Zhu;J. 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/11585/142604
 Attenzione

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

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 214
  • ???jsp.display-item.citation.isi??? 125
social impact