학술논문

Di-Jet Imbalance Measurements at $\sqrt{s_{NN}} = 200$ GeV at STAR
Document Type
Working Paper
Author
STAR CollaborationAdamczyk, L.Adkins, J. K.Agakishiev, G.Aggarwal, M. M.Ahammed, Z.Alekseev, I.Anderson, D. M.Aoyama, R.Aparin, A.Arkhipkin, D.Aschenauer, E. C.Ashraf, M. U.Attri, A.Averichev, G. S.Bai, X.Bairathi, V.Bellwied, R.Bhasin, A.Bhati, A. K.Bhattarai, P.Bielcik, J.Bielcikova, J.Bland, L. C.Bordyuzhin, I. G.Bouchet, J.Brandenburg, J. D.Brandin, A. V.Brown, D.Bunzarov, I.Butterworth, J.Caines, H.Sánchez, M. Calderón de la BarcaCampbell, J. M.Cebra, D.Chakaberia, I.Chaloupka, P.Chang, Z.Chatterjee, A.Chattopadhyay, S.Chen, J. H.Chen, X.Cheng, J.Cherney, M.Christie, W.Contin, G.Crawford, H. J.Das, S.De Silva, L. C.Debbe, R. R.Dedovich, T. G.Deng, J.Derevschikov, A. A.Didenko, L.Dilks, C.Dong, X.Drachenberg, J. L.Draper, J. E.Du, C. M.Dunkelberger, L. E.Dunlop, J. C.Efimov, L. G.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, Z.Filip, P.Fisyak, Y.Flores, C. E.Fulek, L.Gagliardi, C. A.Garand, D.Geurts, F.Gibson, A.Girard, M.Greiner, L.Grosnick, D.Gunarathne, D. S.Guo, Y.Gupta, A.Gupta, S.Guryn, W.Hamad, A. I.Hamed, A.Haque, R.Harris, J. W.He, L.Heppelmann, S.Hirsch, A.Hoffmann, G. W.Horvat, S.Huang, X.Huang, B.Huang, H. Z.Huang, T.Huck, P.Humanic, T. J.Igo, G.Jacobs, W. W.Jentsch, A.Jia, J.Jiang, K.Jowzaee, S.Judd, E. G.Kabana, S.Kalinkin, D.Kang, K.Kauder, K.Ke, H. W.Keane, D.Kechechyan, A.Khan, Z.Kikoła, D. P.Kisel, I.Kisiel, A.Kochenda, L.Koetke, D. D.Kosarzewski, L. K.Kraishan, A. F.Kravtsov, P.Krueger, K.Kumar, L.Lamont, M. A. C.Landgraf, J. M.Landry, K. D.Lauret, J.Lebedev, A.Lednicky, R.Lee, J. H.Li, W.Li, X.Li, Y.Li, C.Lin, T.Lisa, M. A.Liu, Y.Liu, F.Ljubicic, T.Llope, W. J.Lomnitz, M.Longacre, R. S.Luo, X.Luo, S.Ma, G. L.Ma, L.Ma, R.Ma, Y. G.Magdy, N.Majka, R.Manion, A.Margetis, S.Markert, C.Matis, H. S.McDonald, D.McKinzie, S.Meehan, K.Mei, J. C.Miller, Z. W.Minaev, N. G.Mioduszewski, S.Mishra, D.Mohanty, B.Mondal, M. M.Morozov, D. A.Mustafa, M. K.Nasim, Md.Nayak, T. K.Nigmatkulov, G.Niida, T.Nogach, L. V.Nonaka, T.Novak, J.Nurushev, S. B.Odyniec, G.Ogawa, A.Oh, K.Okorokov, V. A.Olvitt Jr., D.Page, B. S.Pak, R.Pan, Y. X.Pandit, Y.Panebratsev, Y.Pawlik, B.Pei, H.Perkins, C.Pile, P.Pluta, J.Poniatowska, K.Porter, J.Posik, M.Poskanzer, A. M.Pruthi, N. K.Przybycien, M.Putschke, J.Qiu, H.Quintero, A.Ramachandran, S.Ray, R. L.Reed, R.Rehbein, M. J.Ritter, H. G.Roberts, J. B.Rogachevskiy, O. V.Romero, J. L.Roth, J. D.Ruan, L.Rusnak, J.Rusnakova, O.Sahoo, N. R.Sahu, P. K.Sakrejda, I.Salur, S.Sandweiss, J.Schambach, J.Scharenberg, R. P.Schmah, A. M.Schmidke, W. B.Schmitz, N.Seger, J.Seyboth, P.Shah, N.Shahaliev, E.Shanmuganathan, P. V.Shao, M.Sharma, M. K.Sharma, A.Sharma, B.Shen, W. Q.Shi, S. S.Shi, Z.Shou, Q. Y.Sichtermann, E. P.Sikora, R.Simko, M.Singha, S.Skoby, M. J.Smirnov, D.Smirnov, N.Solyst, W.Song, L.Sorensen, P.Spinka, H. M.Srivastava, B.Stanislaus, T. D. S.Stepanov, M.Stock, R.Strikhanov, M.Stringfellow, B.Sugiura, T.Sumbera, M.Summa, B.Sun, X. M.Sun, Z.Sun, Y.Surrow, B.Svirida, D. N.Tang, Z.Tang, A. H.Tarnowsky, T.Tawfik, A.Thäder, J.Thomas, J. H.Timmins, A. R.Tlusty, D.Todoroki, T.Tokarev, M.Trentalange, S.Tribble, R. E.Tribedy, P.Tripathy, S. K.Tsai, O. D.Ullrich, T.Underwood, D. G.Upsal, I.Van Buren, G.van Nieuwenhuizen, G.Vasiliev, A. N.Vertesi, R.Videbæk, F.Vokal, S.Voloshin, S. A.Vossen, A.Wang, F.Wang, J. S.Wang, G.Wang, Y.Webb, G.Webb, J. C.Wen, L.Westfall, G. D.Wieman, H.Wissink, S. W.Witt, R.Wu, Y.Xiao, Z. G.Xie, G.Xie, W.Xin, K.Xu, Q. H.Xu, H.Xu, Y. F.Xu, Z.Xu, J.Xu, N.Yang, S.Yang, Q.Yang, Y.Yang, C.Ye, Z.Yi, L.Yip, K.Yoo, I. -K.Yu, N.Zbroszczyk, H.Zha, W.Zhang, X. P.Zhang, J.Zhang, Z.Zhang, S.Zhang, J. B.Zhang, Y.Zhao, J.Zhong, C.Zhou, L.Zhu, X.Zoulkarneeva, Y.Zyzak, M.
Source
Phys. Rev. Lett. 119, 062301 (2017)
Subject
Nuclear Experiment
Language
Abstract
We report the first di-jet transverse momentum asymmetry measurements from Au+Au and p+p collisions at RHIC. The two highest-energy back-to-back jets reconstructed from fragments with transverse momenta above 2 GeV/c display a significantly stronger momentum imbalance in heavy-ion collisions than in the p+p reference. When re-examined with correlated soft particles included, we observe that these di-jets then exhibit a unique new feature -- momentum balance is restored to that observed in p+p for a jet resolution parameter of R=0.4, while re-balancing is not attained with a smaller value of R=0.2.
Comment: 7 pages, 3 figures. To be submitted to PRL