Near-side azimuthal and pseudorapidity correlations using neutral strange baryons and mesons in d+Au , Cu + Cu, and Au + Au collisions at sNN=200 GeV

Betty Abelev,L. Adamczyk,J. K. Adkins,G. Agakishiev,Madan Mohan Aggarwal,Zubayer Ahammed,I. Alekseev,A. Aparin,D. Arkhipkin,E. C. Aschenauer,Muhammad Usman Ashraf,Anjali Attri,G. S. Averichev,X. Bai,V. Bairathi,L. S. Barnby,Rene Bellwied,Anju Bhasin,A. K. Bhati,P. Bhattarai,J. Bielcik,J. Bielcikova,L. C. Bland,M Bombara,I. G. Bordyuzhin,J. Bouchet,J. D. Brandenburg,A. V. Brandin,I. Bunzarov,J. Butterworth,Helen Louise Caines,M. Calderon De La Barca Sanchez,J. M. Campbell,D. Cebra,I. Chakaberia,P. Chaloupka,Z. Chang,Arka Chatterjee,Sukalyan Chattopadhyay,Jian Chen,X. Chen,J. Cheng,Michael G. Cherney,W. Christie,Giacomo Contin,H. J. Crawford,S. Das,L. C. De Silva,Ramiro Debbe,T. G. Dedovich,Jun Deng,A. A. Derevschikov,B. Di Ruzza,L. Didenko,C. Dilks,X. Dong,J. L. Drachenberg,J. E. Draper,C. M. Du,L. E. Dunkelberger,J. C. Dunlop,L. G. Efimov,J. Engelage,G. Eppley,R. Esha,O. Evdokimov,O. Eyser,R. Fatemi,S. Fazio,Pavol Federic,J. Fedorisin,Z. Feng,P. Filip,Y. Fisyak,C.E. Flores,Łukasz Fulek,C. A. Gagliardi,L. Gaillard,D. Garand,F. J. M. Geurts,A. Gibson,M. R. Girard,Leo Clifford Greiner,D. Grosnick,D. S. Gunarathne,Yuzhu Guo,A. Gupta,S K Gupta,W. Guryn,Ayman Hamad,A. Hamed,R. Haque,J. W. Harris,Liang He,S. Heppelmann,A. S. Hirsch,G. W. Hoffmann,S. Horvat,Te-Chuan Huang,B. Huang,X. Huang,H. Z. Huang,P. Huck,T. J. Humanic,G. J. Igo,W. W. Jacobs,H J Jang,Alexander Jentsch,J. Jia,Kun Jiang,P. G. Jones,E. G. Judd,S. Kabana,Dmitry Kalinkin,K. Kang,K. Kauder,H. W. Ke,D. Keane,A. Kechechyan,Z. H. Khan,Daniel Kikola,Ivan Kisel,A. Kisiel,L. Kochenda,D. D. Koetke,Leszek Kosarzewski,A. F. Kraishan,P. Kravtsov,K. Krueger,Lokesh Kumar,Mac Lamont,J. M. Landgraf,K. D. Landry,J. Lauret,A. Lebedev,R. Lednický,J. H. Lee,C. Li,Y. Li,Wei Li,Xiang Li,T. Lin,M. A. Lisa,F. H. Liu,T. Ljubicic,William Llope,M. Lomnitz,R. S. Longacre,Siwei Luo,Xiaofeng Luo,L. Ma,Rongrong Ma,G. L. Ma,Y. G. Ma,Niseem Magdy,Richard Daniel Majka,A. Manion,S. Margetis,Christina Markert,H. S. Matis,Donald M. McDonald,S. McKinzie,Kathryn Meehan,Jie Mei,Z. W. Miller,N. G. Minaev,S. Mioduszewski,D. K. Mishra,Bedangadas Mohanty,M M Mondal,D A Morozov,M. K. Mustafa,B. K. Nandi,Christine Nattrass,Nasim,Tapan Kumar Nayak,Grigory Nigmatkulov,Takafumi Niida,L. V. Nogach,Sy Noh,J. Novak,S. B. Nurushev,G. Odyniec,A. Ogawa,K. Oh,V. A. Okorokov,D. L. Olvitt,B. S. Page,R. Pak,Y. X. Pan,Y. Pandit,Y. Panebratsev,B. Pawlik,Hua Pei,C. Perkins,P. Pile,Jan Marian Pluta,K. Poniatowska,J. Porter,Matthew Posik,A. M. Poskanzer,N. K. Pruthi,J. Putschke,H. Qiu,A. Quintero,S. Ramachandran,R. L. Ray,H. G. Ritter,Jay Roberts,O. V. Rogachevskiy,J. L. Romero,L. Ruan,J. Rusnak,O. Rusnakova,N. R. Sahoo,P. K. Sahu,I. Sakrejda,Sevil Salur,J. Sandweiss,A. Sarkar,J. Schambach,R. P. Scharenberg,Alexander Schmah,W. B. Schmidke,N. Schmitz,Janet Elizabeth Seger,P. Seyboth,N. Shah,E. Shahaliev,P. V. Shanmuganathan,M. Shao,B. Sharma,Anjali Sharma,Monika Sharma,W. Q. Shen,Z. Shi,S. S. Shi,Q. Y. Shou,E. P. Sichtermann,Rafal Sikora,Miroslav Simko,Subhash Singha,M. J. Skoby,Nikolai Smirnov,D. Smirnov,William Solyst,L. Song,P. Sorensen,H. M. Spinka,B. K. Srivastava,T. D. S. Stanislaus,M. Stepanov,R. Stock,M. N. Strikhanov,B.C. Stringfellow,M Šumbera,Branden Summa,Y. J. Sun,Z. Y. Sun,X. M. Sun,Bernd Surrow,D.N. Svirida,Zebo Tang,A. H. Tang,T. Tarnowsky,Abdel Nasser Tawfik,J. Thäder,J. H. Thomas,A. R. Timmins,D. Tlusty,Takahito Todoroki,M. Tokarev,S. Trentalange,R. E. Tribble,Prithwish Tribedy,S. K. Tripathy,O. D. Tsai,T. Ullrich,D. G. Underwood,Isaac Upsal,G. Van Buren,G. van Nieuwenhuizen,M. Vandenbroucke,Raghava Varma,A. N. Vasiliev,Robert Vertesi,F. Videbaek,S. Vokal,S. A. Voloshin,A. Vossen,H. Wang,Y. Wang,G. Wang,J. S. Wang,Fuqiang Wang,G. Webb,J. C. Webb,Liwen Wen,G. D. Westfall,H. H. Wieman,S. W. Wissink,R. Witt,Y. Wu,Zhigang Xiao,W. Xie,G. Xie,K. Xin,Yi-Fei Xu,Qingnian Xu,N. Xu,Jun Xu,H.S. Xu,Z. J. Xu,Yi-feng Yang,Q. Yang,Shangfeng Yang,C. Yang,Z. Ye,L. Yi,K. Yip,I. K. Yoo,N. Yu,Hanna Paulina Zbroszczyk,W. Zha,Sijia Zhang,Xing Zhang,Y. Zhang,Jingqing Zhang,J.L. Zhang,Z. Zhang,J. Zhao,C. Zhong,Lei Zhou,X.L. Zhu,Y. Zoulkarneeva,Maksym Zyzak

Near-side azimuthal and pseudorapidity correlations using neutral strange baryons and mesons in d+Au , Cu + Cu, and Au + Au collisions at sNN=200 GeV

2016

Author(s): Abelev, B; Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Attri, A; Averichev, GS; Bai, X; Bairathi, V; Barnby, LS; Bellwied, R; Bhasin, A; Bhati, AK; Bhattarai, P; Bielcik, J; Bielcikova, J; Bland, LC; Bombara, M; Bordyuzhin, IG; Bouchet, J; Brandenburg, JD; Brandin, AV; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, Z; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; De Silva, LC; Debbe, RR; Dedovich, TG; Deng, J; Derevschikov, AA; Di Ruzza, B; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Draper, JE; Du, CM; Dunkelberger, LE; Dunlop, JC; Efimov, LG; Engelage, J; Eppley, G; Esha, R; Evdokimov, O; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Feng, Z; Filip, P; Fisyak, Y; Flores, CE; Fulek, L; Gagliardi, CA; Gaillard, L; Garand, D; Geurts, F; Gibson, A; Girard, M; Greiner, L; Grosnick, D; Gunarathne, DS | Abstract: © 2016 American Physical Society. We present measurements of the near side of triggered di-hadron correlations using neutral strange baryons (Λ,Λ) and mesons (KS0) at intermediate transverse momentum (3 l pT l6 GeV/c) to look for possible flavor and baryon-meson dependence. This study is performed in d+Au, Cu+Cu, and Au+Au collisions at sNN=200 GeV measured by the STAR experiment at RHIC. The near-side di-hadron correlation contains two structures, a peak which is narrow in azimuth and pseudorapidity consistent with correlations from jet fragmentation, and a correlation in azimuth which is broad in pseudorapidity. The particle composition of the jet-like correlation is determined using identified associated particles. The dependence of the conditional yield of the jet-like correlation on the trigger particle momentum, associated particle momentum, and centrality for correlations with unidentified trigger particles are presented. The neutral strange particle composition in jet-like correlations with unidentified charged particle triggers is not well described by PYTHIA. However, the yield of unidentified particles in jet-like correlations with neutral strange particle triggers is described reasonably well by the same model.

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