Collision-energy dependence of second-order off-diagonal and diagonal cumulants of net-charge, net-proton, and net-kaon multiplicity distributions in Au + Au collisions-猫眼课题宝

DOI：

10.1103/physrevc.100.014902

发表时间：

2019-03

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：

S. Adam;L. Adamczyk;J. Adams;J. K. Adkins;G. Agakishiev;M. Aggarwal;Z. Ahammed;I. Alekseev;D. Anderson;R. Aoyama;A. Aparin;D. Arkhipkin;E. Aschenauer;M. U. Ashraf;F. Atetalla;A. Attri;G. S. Averichev;V. Bairathi;K. Barish;A. Bassill;A. Behera;R. Bellwied;A. Bhasin;A. Bhati;J. Bielcik;J. Bielčíková;L. Bland;I. Bordyuzhin;J. Brandenburg;A. Brandin;J. Bryslawskyj;I. Bunzarov;J. Butterworth;H. Caines;M. S'anchez;D. Cebra;I. Chakaberia;P. Chaloupka;B. Chan;F. Chang;Z. Chang;N. Chankova-Bunzarova;A. Chatterjee;S. Chattopadhyay;J. Chen;X. Chen;J. Cheng;M. Cherney;W. Christie;H. Crawford;M. Csan'ad;S. Das;T. Dedovich;I. Deppner;A. Derevschikov;L. Didenko;C. Dilks;X. Dong;J. Drachenberg;J. Dunlop;T. Edmonds;N. Elsey;J. Engelage;G. Eppley;R. Esha;S. Esumi;O. Evdokimov;J. Ewigleben;O. Eyser;R. Fatémi;S. Fazio;P. Federic;J. Fedorišin;Y. Feng;P. Filip;E. Finch;Y. Fisyak;L. Fulek;C. Gagliardi;T. Galatyuk;F. Geurts;A. Gibson;D. Grosnick;A. Gupta;W. Guryn;A. Hamad;Ahmed M. Hamed;J. Harris;L. He;S. Heppelmann;N. Herrmann;L. Holub;Y. Hong;S. Horvat;B. Huang;H. Huang;S. Huang;T. Huang;X. Huang;T. Humanic;P. Huo;G. Igo;W. Jacobs;A. Jentsch;J. Jia;K. Jiang;S. Jowzaee;X. Ju;E. Judd;S. Kabana;S. Kagamaster;D. Kalinkin;K. Kang;D. Kapukchyan;K. Kauder;H. Ke;D. Keane;A. Kechechyan;M. Kelsey;Y. Khyzhniak;D. Kikoła;C. Kim;T. Kinghorn;I. Kisel;A. Kisiel;M. Kocan;L. Kochenda;L. Kosarzewski;L. Kramárik;P. Kravtsov;K. Krueger;N. Mudiyanselage;Lokesh Kumar;R. K. Elayavalli;J. Kwasizur;R. Lacey;J. Landgraf;J. Lauret;A. Lebedev;R. Lednický;J. Lee;C. Li;W. Li;X. Li;Y. Li;Y. Liang;R. Licenik;T. Lin;A. Lipiec;M. Lisa;F. Liu;H. Liu;P. Liu;T. Liu;X. Liu;Y. Liu;Z. Liu;T. Ljubičić;W. Llope;M. Lomnitz;R. Longacre;S. Luo;X. Luo;G. Ma;L. Ma;R. Ma;Y. Ma;N. Magdy;R. Majka;D. Mallick;S. Margetis;C. Markert;H. Matis;O. Matonoha;J. Mazer;K. Meehan;J. Mei;N. Minaev;S. Mioduszewski;D. Mishra;B. Mohanty;M. Mondal;I. Mooney;Z. Moravcova;D. Morozov;M. Nasim;K. Nayak;J. Nelson;D. Nemes;M. Nie;G. Nigmatkulov;T. Niida;L. Nogach;T. Nonaka;G. Odyniec;A. Ogawa;K. Oh;S. Oh;V. Okorokov;B. Page;R. Pak;Y. Panebratsev;B. Pawlik;D. Pawłowska;H. Pei;C. Perkins;R. L. Pint'er;J. Pluta;J. Porter;M. Posik;N. Pruthi;M. Przybycien;J. Putschke;A. Quintero;S. Radhakrishnan;S. Ramachandran;R. Ray;R. Reed;H. Ritter;J. Roberts;O. Rogachevskiy;J. Romero;L. Ruan;J. Rusnak;O. Rusňáková;N. Sahoo;P. Sahu;S. Salur;J. Sandweiss;J. Schambach;W. Schmidke;N. Schmitz;B. Schweid;F. Seck;J. Seger;M. Sergeeva;R. Seto;P. Seyboth;N. Shah;E. Shahaliev;P. Shanmuganathan;M. Shao;F. Shen;W. Shen;S. Shi;Q. Shou;E. Sichtermann;S. Siejka;R. Sikora;M. Simko;J. Singh;S. Singha;D. Smirnov;N. Smirnov;W. Solyst;P. Sorensen;H. Spinka;B. Srivastava;T. Stanislaus;M. Stefaniak;D. Stewart;M. Strikhanov;B. Stringfellow;A. Suaide;T. Sugiura;M. Šumbera;B. Summa;X. Sun;Y. Sun;B. Surrow;D. Svirida;P. Szymanski;A. Tang;Z. Tang;A. Taranenko;T. Tarnowsky;J. Thomas;A. Timmins;D. Tlustý;T. Todoroki;M. Tokarev;C. Tomkiel;S. Trentalange;R. Tribble;P. Tribedy;S. Tripathy;O. Tsai;B. Tu;T. Ullrich;D. Underwood;I. Upsal;G. Buren;J. Vanek;A. Vasiliev;I. Vassiliev;F. Videbaek;S. Vokál;S. Voloshin;F. Wang;G. Wang;P. Wang;Y. Wang;J. Webb;L. Wen;G. Westfall;H. Wieman;S. Wissink;R. Witt;Y. Wu;Z. Xiao;G. Xie;W. Xie;H. Xu;N. Xu;Q. Xu;Y. Xu;Z. Xu;C. Yang;Q. Yang;S. Yang;Y. Yang;Z. Ye;L. Yi;K. Yip;I. Yoo;H. Zbroszczyk;W. Zha;D. Zhang;L. Zhang;S. Zhang;X. Zhang;Y. Zhang;Z. Zhang;J. Zhao;C. Zhong;C. Zhou;X. Zhu;Z. Zhu;M. Zurek;M. Zyzak

作者：Adam， J；Adamczyk L;亚当斯,小;Adkins, JK;Agakishiev G;Aggarwal MM;Ahammed Z;Alekseev,我;安德森,DM;青山,R;Aparin,;Arkhipkin D;Aschenauer EC;阿什拉夫,μ;Atetalla F;素质,;Averichev GS;Bairathi V;巴里斯,K;AJ Bassill;Behera,;Bellwied R;哈,一个;Bhati, AK党;Bielcik J;Bielcikova J;平淡,信用证;Bordyuzhin搞笑;勃兰登堡,JD;Brandin AV;Bryslawskyj J;Bunzarov,我;巴特沃斯,J;该隐,H;卡尔德隆·德拉·巴萨·桑切斯，M;Cebra D;Chakaberia,我;Chaloupka P;陈,汉堡王;常,跳频;常,Z;Chankova-Bunzarova N;查;将S;陈,JH;陈,X;程,J;查,M;克里斯蒂,W;克劳福德HJ;Csanad, M;Das,年代;Dedovich TG;Deppner,即时通讯;Derevschikov AA;Didenko L;Dilks C;盾,X;Drachenberg杰;邓洛普,JC;埃德蒙兹,T;Elsey N;Engelage J;埃普利,G;Esha R;Esumi年代;Evdokimov O;Ewigleben J;埃塞尔,O;法特米,R;法齐奥,年代;Federic P;Fedorisin J;冯,Y;菲利普,P;雀,E;Fisyak Y;Fulek L;Gagliardi CA;Galatyuk T;吉尔茨,F;吉布森,;Grosnick D;古普塔,;摘要：©2019美国物理学会。我们报告了在相对论重离子对撞机的光束能量扫描程序的第一阶段，净电荷、净质子和净介子多重分布的完整二阶累积矩阵的第一次测量。这包括在sNN= 7.7- 200gev下Au+Au碰撞中对角线和非对角线累积量的中心性，以及首次对伪快度窗口的依赖。在|η |0.5的可接受范围内，累积量随赝快度窗口线性增长。相对于外围碰撞的相应测量结果，中心碰撞中非对角累积量与对角累积量的比值表明净电荷与净介子之间以及净电荷与净质子之间存在过度的相关性。这种超相关的强度随着碰撞能量的增加而增加。在sNN= 200 GeV时，净质子和净介子多重分布的相关性为负，在碰撞能量最低时变为正。基于非热（UrQMD）和热（HRG）强子产生的模型计算不能解释这些数据。这些测量将有助于绘制量子色动力学相图，约束强子共振气体模型计算，并为重子-奇异度相关的能量依赖提供新的见解。

Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Atetalla, F; Attri, A; Averichev, GS; Bairathi, V; Barish, K; Bassill, AJ; Behera, A; Bellwied, R; Bhasin, A; Bhati, AK; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Bryslawskyj, J; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; Cheng, J; Cherney, M; Christie, W; Crawford, HJ; Csanad, M; Das, S; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Dunlop, JC; Edmonds, T; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Fulek, L; Gagliardi, CA; Galatyuk, T; Geurts, F; Gibson, A; Grosnick, D; Gupta, A; Guryn, W | Abstract: © 2019 American Physical Society. We report the first measurements of a complete second-order cumulant matrix of net-charge, net-proton, and net-kaon multiplicity distributions for the first phase of the beam energy scan program at the Relativistic Heavy Ion Collider. This includes the centrality and, for the first time, the pseudorapidity window dependence of both diagonal and off-diagonal cumulants in Au+Au collisions at sNN= 7.7-200 GeV. Within the available acceptance of |η|l0.5, the cumulants grow linearly with the pseudorapidity window. Relative to the corresponding measurements in peripheral collisions, the ratio of off-diagonal over diagonal cumulants in central collisions indicates an excess correlation between net-charge and net-kaon, as well as between net-charge and net-proton. The strength of such excess correlation increases with the collision energy. The correlation between net-proton and net-kaon multiplicity distributions is observed to be negative at sNN= 200 GeV and change to positive at the lowest collision energy. Model calculations based on nonthermal (UrQMD) and thermal (HRG) production of hadrons cannot explain the data. These measurements will help map the quantum chromodynamics phase diagram, constrain hadron resonance gas model calculations and provide new insights on the energy dependence of baryon-strangeness correlations.

Collision-energy dependence of second-order off-diagonal and diagonal cumulants of net-charge, net-proton, and net-kaon multiplicity distributions in Au + Au collisions

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