The Proton-Omega Correlation Function In Au Plus Au Collisions At Root S(Nn)=200 Gev
J. Adam,L. Adamczyk,J. R. Adams,J. K. Adkins,G. Agakishiev,M. M. Aggarwal,Z. Ahammed,N. N. Ajitanand,I Alekseev,D. M. Anderson,R. Aoyama,A. Aparin,D. Arkhipkin,E. C. Aschenauer,M. U. Ashraf,F. Atetalla,A. Attri,G. S. Averichev,X. Bai,V Bairathi,K. Barish,A. J. Bassill,A. Behera,R. Bellwied,A. Bhasin,A. K. Bhati,J. Bielcik,J. Bielcikova,L. C. Bland,I. G. Bordyuzhin,J. D. Brandenburg,A. Brandin,D. Brown,J. Bryslawskyj,I Bunzarov,J. Butterworth,H. Caines,M. Calderon De La Barca Sanchez,J. M. Campbell,D. Cebra,I Chakaberia,P. Chaloupka,Z. Chang,F-H Chang,N. Chankova-Bunzarova,A. Chatterjee,S. Chattopadhyay,J. H. Chen,X. Chen,J. Cheng,M. Cherney,W. Christie,G. Contin,H. J. Crawford,S. Das,T. G. Dedovich,I. M. Deppner,A. A. Derevschikov,L. Didenko,C. Dilks,X. Dong,J. L. Drachenberg,J. C. Dunlop,L. G. Efimov,N. Elsey,J. Engelage,G. Eppley,R. Esha,S. Esumi,O. Evdokimov,J. Ewigleben,O. Eyser,R. Fatemi,S. Fazio,P. Federic,P. Federicova,J. Fedorisin,P. Filip,E. Finch,Y. Fisyak,C. E. Flores,L. Fulek,C. A. Gagliardi,T. Galatyuk,F. Geurts,A. Gibson,D. Grosnick,D. S. Gunarathne,Y. Guo,A. Gupta,W. Guryn,A. Hamad,A. Hamed,A. Harlenderova,J. W. Harris,L. He,S. Heppelmann,N. Herrmann,A. Hirsch,L. Holub,S. Horvat,B. Huang,X. Huang,S. L. Huang,T. Huang,H. Z. Huang,T. J. Humanic,P. Huo,G. Igo,W. W. Jacobs,A. Jentsch,J. Jia,K. Jiang,S. Jowzaee,E. G. Judd,S. Kabana,D. Kalinkin,K. Kang,D. Kapukchyan,K. Kauder,H. W. Ke,D. Keane,A. Kechechyan,D. P. Kikola,C. Kim,T. A. Kinghorn,I Kisel,A. Kisiel,L. Kochenda,L. K. Kosarzewski,A. F. Kraishan,L. Kramarik,L. Krauth,P. Kravtsov,K. Krueger,N. Kulathunga,S. Kumar,L. Kumar,R. Kunnawalkam Elayavalli,J. Kvapil,J. H. Kwasizur,R. Lacey,J. M. Landgraf,J. Lauret,A. Lebedev,R. Lednicky,J. H. Lee,Y. Li,W. Li,C. Li,X. Li,Y. Liang,J. Lidrych,T. Lin,A. Lipiec,M. A. Lisa,H. Liu,P. Liu,F. Liu,Y. Liu,T. Ljubicic,W. J. Llope,M. Lomnitz,R. S. Longacre,S. Luo,X. Luo,L. Ma,G. L. Ma,R. Ma,Y. G. Ma,N. Magdy,R. Majka,D. Mallick,S. Margetis,C. Markert,H. S. Matis,O. Matonoha,D. Mayes,J. A. Mazer,K. Meehan,J. C. Mei,N. G. Minaev,S. Mioduszewski,D. Mishra,B. Mohanty,M. M. Mondal,I Mooney,D. A. Morozov,Md Nasim,J. D. Negrete,J. M. Nelson,D. B. Nemes,M. Nie,G. Nigmatkulov,T. Niida,L. Nogach,T. Nonaka,S. B. Nurushev,G. Odyniec,A. Ogawa,S. Oh,K. Oh,V. A. Okorokov,D. Olvitt,B. S. Page,R. Pak,Y. Panebratsev,B. Pawlik,H. Pei,C. Perkins,J. Pluta,J. Porter,M. Posik,N. K. Pruthi,M. Przybycien,J. Putschke,A. Quintero,S. K. Radhakrishnan,S. Ramachandran,R. L. Ray,R. Reed,H. G. Ritter,J. B. Roberts,O. Rogachevskiy,J. L. Romero,L. Ruan,J. Rusnak,O. Rusnakova,N. R. Sahoo,P. K. Sahu,S. Salur,J. Sandweiss,J. Schambach,A. M. Schmah,W. B. Schmidke,N. Schmitz,B. R. Schweid,F. Seck,J. Seger,M. Sergeeva,R. Seto,P. Seyboth,N. Shah,E. Shahaliev,P. Shanmuganathan,M. Shao,W. Q. Shen,F. Shen,S. S. Shi,Q. Y. Shou,E. P. Sichtermann,S. Siejka,R. Sikora,M. Simko,S. Singha,D. Smirnov,N. Smirnov,W. Solyst,P. Sorensen,H. M. Spinka,B. Srivastava,T. D. S. Stanislaus,D. J. Stewart,M. Strikhanov,B. Stringfellow,A. A. P. Suaide,T. Sugiura,M. Sumbera,B. Summa,X. Sun,Y. Sun,X. M. Sun,B. Surrow,D. N. Svirida,P. Szymanski,Z. Tang,A. H. Tang,A. Taranenko,T. Tarnowsky,J. H. Thomas,A. R. Timmins,D. Tlusty,T. Todoroki,M. Tokarev,C. A. Tomkiel,S. Trentalange,R. E. Tribble,P. Tribedy,S. K. Tripathy,O. D. Tsai,B. Tu,T. Ullrich,D. G. Underwood,I Upsal,G. Van Buren,J. Vanek,A. N. Vasiliev,I Vassiliev,F. Videbaek,S. Vokal,S. A. Voloshin,A. Vossen,F. Wang,G. Wang,Y. Wang,J. C. Webb,L. Wen,G. D. Westfall,H. Wieman,S. W. Wissink,R. Witt,Y. Wu,Z. G. Xiao,W. Xie,G. Xie,Z. Xu,J. Xu,Y. F. Xu,N. Xu,Q. H. Xu,Y. Yang,C. Yang,S. Yang,Q. Yang,Z. Ye,L. Yi,K. Yip,I-K Yoo,N. Yu,H. Zbroszczyk,W. Zha,Z. Zhang,J. Zhang,L. Zhang,Y. Zhang,X. P. Zhang,S. Zhang,J. Zhao,C. Zhong,L. Zhou,Z. Zhu,X. Zhu,M. Zyzak
PHYSICS LETTERS B（2019）
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摘要
We present the first measurement of the proton-Omega correlation function in heavy-ion collisions for the central (0-40%) and peripheral (40-80%) Au + Au collisions at root s(NN) = 200 GeV by the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). Predictions for the ratio of peripheral collisions to central collisions for the proton-Omega correlation function are sensitive to the presence of a nucleon-Omega bound state. These predictions are based on the proton-Omega interaction extracted from (2 + 1)-flavor lattice QCD calculations at the physical point. The measured ratio of the proton-Omega correlation function between the peripheral (small system) and central (large system) collisions is less than unity for relative momentum smaller than 40 MeV/c. Comparison of our measured correlation ratio with theoretical calculation slightly favors a proton-Omega bound system with a binding energy of similar to 27 MeV. (C) 2019 Published by Elsevier B.V.
