J/ψ suppression at forward rapidity in Au + Au collisions at √sNN=39 and 62.4 GeV-猫眼课题宝

DOI：

10.1103/physrevc.86.064901

发表时间：

2012-08

期刊：

Physical Review C

影响因子：

3.1

通讯作者：

中科院分区：

物理与天体物理2区

文献类型：

作者：

A. Adare;C. Aidala;N. Ajitanand;Y. Akiba;R. Akimoto;H. Al-Ta’ani;J. Alexander;A. Angerami;K. Aoki;N. Apadula;Y. Aramaki;H. Asano;E. Aschenauer;E. Atomssa;T. Awes;B. Azmoun;V. Babintsev;M. Bai;B. Bannier;K. Barish;B. Bassalleck;S. Bathe;V. Baublis;S. Baumgart;A. Bazilevsky;R. Belmont;A. Berdnikov;Y. Berdnikov;X. Bing;D. Blau;K. Boyle;M. Brooks;H. Buesching;V. Bumazhnov;S. Butsyk;S. Campbell;P. Castera;C. Chen;C. Chi;M. Chiu;I. Choi;J. Choi;S. Choi;R. Choudhury;P. Christiansen;T. Chujo;O. Chvála;V. Cianciolo;Z. Citron;B. Cole;M. Connors;M. Csan'ad;T. CsorgHo;S. Dairaku;A. Datta;M. Daugherity;G. David;A. Denisov;A. Deshpande;E. Desmond;K. V. Dharmawardane;O. Dietzsch;L. Ding;A. Dion;M. Donadelli;O. Drapier;A. Drees;K. Drees;J. Durham;A. Durum;L. D'Orazio;S. Edwards;Y. Efremenko;T. Engelmore;A. Enokizono;S. Esumi;K. O. Eyser;B. Fadem;D. Fields;M. Finger;M. Finger;F. Fleuret;S. Fokin;J. Frantz;A. Franz;A. Frawley;Y. Fukao;T. Fusayasu;K. Gainey;C. Gal;A. Garishvili;I. Garishvili;A. Glenn;X. Gong;M. Gonin;Y. Goto;R. G. Cassagnac;N. Grau;S. Greene;M. Perdekamp;T. Gunji;L. Guo;H. Gustafsson;T. Hachiya;J. Haggerty;K. Hahn;H. Hamagaki;J. Hanks;K. Hashimoto;E. Haslum;R. Hayano;X. He;T. Hemmick;T. Hester;J. Hill;R. Hollis;K. Homma;B. Hong;T. Horaguchi;Y. Hori;S. Huang;T. Ichihara;H. Iinuma;Y. Ikeda;J. Imrek;M. Inaba;A. Iordanova;D. Isenhower;M. Issah;D. Ivanischev;B. Jacak;M. Javani;J. Jia;X. Jiang;B. Johnson;K. Joo;D. Jouan;J. Kamin;S. Kaneti;B. Kang;J. Kang;J. Kang;J. Kapustinsky;K. Karatsu;M. Kasai;D. Kawall;A. Kazantsev;T. Kempel;A. Khanzadeev;K. Kijima;B. Kim;C. Kim;D. Kim;E.J. Kim;H. Kim;K. Kim;Y. Kim;Y. Kim;E. Kinney;'A. Kiss;E. Kistenev;J. Klatsky;D. Kleinjan;P. Kline;Y. Komatsu;B. Komkov;J. Koster;D. Kotchetkov;D. Kotov;A. Kr'al;F. Krizek;G. Kunde;K. Kurita;M. Kurosawa;Y. Kwon;G. Kyle;R. Lacey;Y. Lai;J. Lajoie;A. Lebedev;B. Lee;D. Lee;J. Lee;K. Lee;K. S. Lee;S. Lee;S. Lee;M. Leitch;M. Leite;M. Leitgab;B. Lewis;S. Lim;L. Levy;M. Liu;B. Love;C. Maguire;Y. Makdisi;M. Makek;A. Manion;V. Manko;E. Mannel;S. Masumoto;M. McCumber;P. McGaughey;D. Mcglinchey;C. McKinney;M. Mendoza;B. Meredith;Y. Miake;T. Mibe;A. Mignerey;A. Milov;D. Mishra;J. Mitchell;Y. Miyachi;S. Miyasaka;A. Mohanty;H. Moon;D. Morrison;S. Motschwiller;T. Moukhanova;T. Murakami;J. Murata;T. Nagae;S. Nagamiya;J. Nagle;M. Nagy;I. Nakagawa;Y. Nakamiya;K. Nakamura;T. Nakamura;K. Nakano;C. Nattrass;A. Nederlof;M. Nihashi;R. Nouicer;N. Novitzky;A. Nyanin;E. O'brien;C. Ogilvie;K. Okada;A. Oskarsson;M. Ouchida;K. Ozawa;R. Pak;V. Pantuev;V. Papavassiliou;B. Park;I. Park;S. Park;S. Pate;L. Patel;H. Pei;J. Peng;H. Pereira;D. Peressounko;R. Petti;C. Pinkenburg;R. Pisani;M. Proissl;M. Purschke;H. Qu;J. Rak;I. Ravinovich;K. Read;R. Reynolds;V. Riabov;Y. Riabov;E. Richardson;D. Roach;G. Roche;S. Rolnick;M. Rosati;B. Sahlmueller;N. Saito;T. Sakaguchi;V. Samsonov;M. Sano;M. Sarsour;S. Sawada;K. Sedgwick;R. Seidl;A. Sen;R. Seto;D. Sharma;I. Shein;T. Shibata;K. Shigaki;M. Shimomura;K. Shoji;P. Shukla;A. Sickles;C. Silva;D. Silvermyr;K. Sim;B. Singh;C. P. Singh;V. Singh;M. Slunevcka;R. Soltz;W. Sondheim;S. Sorensen;M. Soumya;I. Sourikova;P. Stankus;E. Stenlund;M. Stepanov;A. Ster;S. Stoll;T. Sugitate;A. Sukhanov;J. Sun;J. Sziklai;E. M. Takagui;A. Takahara;A. Taketani;Y. Tanaka;S. Taneja;K. Tanida;M. Tannenbaum;S. Tarafdar;A. Taranenko;E. Tennant;H. Themann;T. Todoroki;L. Tom'avsek;M. Tom'avsek;H. Torii;R. Towell;I. Tserruya;Y. Tsuchimoto;T. Tsuji;C. Vale;H. W. Hecke;M. Vargyas;E. Vazquez-Zambrano;A. Veicht;J. Velkovska;R. V'ertesi;M. Virius;A. Vossen;V. Vrba;E. Vznuzdaev;X. Wang;D. Watanabe;K. Watanabe;Y. Watanabe;Y. Watanabe;F. Wei;R. Wei;S. White;D. Winter;S. Wolin;C. Woody;M. Wysocki;Y. Yamaguchi;R. Yang;A. Yanovich;J. Ying;S. Yokkaichi;Z. You;I. Younus;I. Yushmanov;W. Zajc;A. Zelenski

我们给出了根 s(NN) = 39 和 62.4 GeV Au + Au 碰撞中前进速度 (1.2 < 垂直条 y 垂直条 < 2.2) 的 J/psi 不变产率的测量结果。不变产量表示为碰撞中心性和横向动量的函数。获得中心相对于外围 Au + Au 碰撞 (R-CP) 的核修饰，以及 Au + Au 相对于从其他测量获得的缩放 p + p 横截面 (R-AA) 的各种中心性选择。在 39 和 62.4 GeV 处观察到的抑制模式与之前在 200 GeV 处测量的抑制模式非常相似。这种类似的抑制对包含具有不同能量依赖性的各种竞争机制的理论模型提出了挑战，其中一些导致抑制，另一些则增强。 DOI：10.1103/PhysRevC.86.064901

We present measurements of the J/psi invariant yields in root s(NN) = 39 and 62.4 GeV Au + Au collisions at forward rapidity (1.2 < vertical bar y vertical bar < 2.2). Invariant yields are presented as a function of both collision centrality and transverse momentum. Nuclear modifications are obtained for central relative to peripheral Au + Au collisions (R-CP) and for various centrality selections in Au + Au relative to scaled p + p cross sections obtained from other measurements (R-AA). The observed suppression patterns at 39 and 62.4 GeV are quite similar to those previously measured at 200 GeV. This similar suppression presents a challenge to theoretical models that contain various competing mechanisms with different energy dependencies, some of which cause suppression and others enhancement. DOI: 10.1103/PhysRevC.86.064901

J/ψ suppression at forward rapidity in Au + Au collisions at √sNN=39 and 62.4 GeV

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