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114 results on '"M. Lomnitz"'

1. Constraining the initial conditions and temperature dependent viscosity with three-particle correlations in Au+Au collisions

Author: L. Adamczyk, 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, A. Attri, G.S. Averichev, X. Bai, V. Bairathi, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, D. Brown, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, X. Chen, J.H. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. Deng, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.E. Draper, L.E. Dunkelberger, 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, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, S. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, S. Horvat, T. Huang, B. Huang, X. 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, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z. Khan, D.P. Kikoła, I. Kisel, A. Kisiel, L. Kochenda, M. Kocmanek, T. Kollegger, L.K. Kosarzewski, A.F. Kraishan, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, C. Li, W. Li, Y. Li, J. Lidrych, T. Lin, M.A. Lisa, H. Liu, P. Liu, Y. Liu, F. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, S. Luo, X. Luo, G.L. Ma, L. Ma, Y.G. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, K. Meehan, J.C. Mei, Z.W. Miller, N.G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, Md. Nasim, T.K. Nayak, J.M. Nelson, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt, Jr., B.S. Page, R. Pak, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, P. Pile, J. Pluta, K. Poniatowska, J. Porter, M. Posik, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R.L. Ray, R. Reed, M.J. Rehbein, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.D. Roth, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, M. Saur, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, J. Seger, M. Sergeeva, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, A. Sharma, M.K. Sharma, W.Q. Shen, Z. Shi, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, N. Smirnov, D. Smirnov, W. Solyst, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Strikhanov, B. Stringfellow, T. Sugiura, M. Sumbera, B. Summa, Y. Sun, X.M. Sun, X. Sun, B. Surrow, D.N. Svirida, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. Thäder, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, A.N. Vasiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, W. Xie, G. Xie, J. Xu, N. Xu, Q.H. Xu, Y.F. Xu, Z. Xu, Y. Yang, Q. Yang, C. Yang, S. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, X.P. Zhang, J.B. Zhang, S. Zhang, J. Zhang, Y. Zhang, J. Zhao, C. Zhong, L. Zhou, C. Zhou, X. Zhu, Z. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: We present three-particle mixed-harmonic correlations 〈cos⁡(mϕa+nϕb−(m+n)ϕc)〉 for harmonics m,n=1−3 for charged particles in sNN=200 GeV Au+Au collisions at RHIC. These measurements provide information on the three-dimensional structure of the initial collision zone and are important for constraining models of a subsequent low-viscosity quark–gluon plasma expansion phase. We investigate correlations between the first, second and third harmonics predicted as a consequence of fluctuations in the initial state. The dependence of the correlations on the pseudorapidity separation between particles show hints of a breaking of longitudinal invariance. We compare our results to a number of state-of-the art hydrodynamic calculations with different initial states and temperature dependent viscosities. These measurements provide important steps towards constraining the temperature dependent viscosity and longitudinal structure of the initial state at RHIC.
Published: 2019
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2. The proton–Ω correlation function in Au + Au collisions at sNN=200GeV

Author: 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.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, 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.I. 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. Kikoła, 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.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, S. Oh, K. Oh, V.A. Okorokov, D. Olvitt, Jr., 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.V. 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.V. 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. Videbæk, 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, C. Zhou, L. Zhou, Z. Zhu, X. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: We present the first measurement of the proton–Ω correlation function in heavy-ion collisions for the central (0–40%) and peripheral (40–80%) Au + Au collisions at sNN=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–Ω correlation function are sensitive to the presence of a nucleon–Ω bound state. These predictions are based on the proton–Ω interaction extracted from (2+1)-flavor lattice QCD calculations at the physical point. The measured ratio of the proton–Ω 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–Ω bound system with a binding energy of ∼ 27 MeV. Keywords: Correlations, Femtoscopy, NΩ dibaryon
Published: 2019
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3. J/ψ production cross section and its dependence on charged-particle multiplicity in p + p collisions at s=200 GeV

Author: 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.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, F.-H. Chang, Z. 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.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, A. Hirsch, L. Holub, S. Horvat, X. Huang, B. Huang, S.L. Huang, H.Z. Huang, T. 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. Kikoła, 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, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, C. Li, W. Li, Y. Li, Y. Liang, J. Lidrych, T. Lin, A. Lipiec, M.A. Lisa, F. Liu, P. Liu, H. Liu, Y. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, S. Luo, G.L. Ma, Y.G. Ma, L. Ma, R. 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.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, S. Oh, V.A. Okorokov, D. Olvitt, Jr., 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.V. 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.V. 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, N. Smirnov, D. 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, Y. Sun, X. 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. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, Q.H. Xu, Z. Xu, J. Xu, Y.F. Xu, N. Xu, S. Yang, C. Yang, Q. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, L. Zhang, Y. Zhang, X.P. Zhang, J. Zhang, S. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, Z. Zhu, X. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: We present a measurement of inclusive J/ψ production at mid-rapidity (|y|
Published: 2018
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4. Collision energy dependence of moments of net-kaon multiplicity distributions at RHIC

Author: 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, A. Attri, G.S. Averichev, X. Bai, V. Bairathi, K. Barish, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, D. Brown, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. 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, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. Deng, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.E. Draper, L.E. Dunkelberger, 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, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, J. Fujita, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, D. Grosnick, D.S. Gunarathne, Y. Guo, S. Gupta, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, S. Horvat, X. Huang, H.Z. Huang, T. Huang, B. 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, Z. Khan, D.P. Kikoła, C. Kim, I. Kisel, A. Kisiel, L. Kochenda, M. Kocmanek, T. Kollegger, L.K. Kosarzewski, A.F. Kraishan, L. Krauth, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, C. Li, W. Li, Y. Li, X. Li, J. Lidrych, T. Lin, M.A. Lisa, P. Liu, F. Liu, H. Liu, Y. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, S. Luo, G.L. Ma, L. Ma, Y.G. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, K. Meehan, J.C. Mei, Z.W. Miller, N.G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, Md. Nasim, T.K. Nayak, J.M. Nelson, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt, Jr., B.S. Page, R. Pak, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, P. Pile, J. Pluta, K. Poniatowska, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R.L. Ray, R. Reed, M.J. Rehbein, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.D. Roth, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, A. Sarkar, M. Saur, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, M.K. Sharma, A. Sharma, W.Q. Shen, Z. Shi, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, D. Smirnov, N. Smirnov, W. Solyst, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Strikhanov, B. Stringfellow, T. Sugiura, M. Sumbera, B. Summa, X.M. Sun, Y. Sun, X. Sun, B. Surrow, D.N. Svirida, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. Thäder, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, A.N. Vasiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, F. Wang, Y. Wang, G. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, Z. Xu, N. Xu, Y.F. Xu, Q.H. Xu, J. Xu, Q. Yang, C. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, X.P. Zhang, S. Zhang, J.B. Zhang, J. Zhang, Z. Zhang, Y. Zhang, J. Zhao, C. Zhong, L. Zhou, C. Zhou, Z. Zhu, X. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: Fluctuations of conserved quantities such as baryon number, charge, and strangeness are sensitive to the correlation length of the hot and dense matter created in relativistic heavy-ion collisions and can be used to search for the QCD critical point. We report the first measurements of the moments of net-kaon multiplicity distributions in Au+Au collisions at sNN=7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV. The collision centrality and energy dependence of the mean (M), variance (σ2), skewness (S), and kurtosis (κ) for net-kaon multiplicity distributions as well as the ratio σ2/M and the products Sσ and κσ2 are presented. Comparisons are made with Poisson and negative binomial baseline calculations as well as with UrQMD, a transport model (UrQMD) that does not include effects from the QCD critical point. Within current uncertainties, the net-kaon cumulant ratios appear to be monotonic as a function of collision energy.
Published: 2018
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5. Beam energy dependence of rapidity-even dipolar flow in Au+Au collisions

Author: 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.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, F.-H. Chang, Z. 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.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, A. Hirsch, L. Holub, S. Horvat, X. Huang, B. Huang, S.L. Huang, H.Z. Huang, T. 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. Kikoła, 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, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, C. Li, W. Li, Y. Li, Y. Liang, J. Lidrych, T. Lin, A. Lipiec, M.A. Lisa, F. Liu, P. Liu, H. Liu, Y. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, S. Luo, G.L. Ma, Y.G. Ma, L. Ma, R. 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.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, S. Oh, V.A. Okorokov, D. Olvitt, Jr., 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.V. 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.V. 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, N. Smirnov, D. 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, Y. Sun, X. 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. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, Q.H. Xu, Z. Xu, J. Xu, Y.F. Xu, N. Xu, S. Yang, C. Yang, Q. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, L. Zhang, Y. Zhang, X.P. Zhang, J. Zhang, S. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, Z. Zhu, X. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: New measurements of directed flow for charged hadrons, characterized by the Fourier coefficient v1, are presented for transverse momenta pT, and centrality intervals in Au+Au collisions recorded by the STAR experiment for the center-of-mass energy range sNN=7.7–200 GeV. The measurements underscore the importance of momentum conservation, and the characteristic dependencies on sNN, centrality and pT are consistent with the expectations of geometric fluctuations generated in the initial stages of the collision, acting in concert with a hydrodynamic-like expansion. The centrality and pT dependencies of v1even, as well as an observed similarity between its excitation function and that for v3, could serve as constraints for initial-state models. The v1even excitation function could also provide an important supplement to the flow measurements employed for precision extraction of the temperature dependence of the specific shear viscosity.
Published: 2018
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6. Charge-dependent pair correlations relative to a third particle in p + Au and d + Au collisions at RHIC

Author: J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, D.M. Anderson, R. Aoyama, A. Aparin, D. Arkhipkin, E.C. Aschenauer, M.U. Ashraf, F. Atetalla, A. Attri, G.S. Averichev, 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.V. Brandin, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, F.-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, H.J. Crawford, M. Csanád, S. Das, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.C. Dunlop, T. Edmonds, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, J. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, J. Fedorisin, Y. Feng, P. Filip, E. Finch, Y. Fisyak, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, K. Gopal, D. Grosnick, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, L. Holub, Y. Hong, S. Horvat, B. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, T.J. Humanic, P. Huo, G. Igo, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, S. Jowzaee, X. Ju, E.G. Judd, S. Kabana, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, C. Kim, T.A. Kinghorn, I. Kisel, A. Kisiel, M. Kocan, L. Kochenda, L.K. Kosarzewski, L. Kramarik, P. Kravtsov, K. Krueger, N. Kulathunga Mudiyanselage, L. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, C. Li, W. Li, X. Li, Y. Li, Y. Liang, R. Licenik, T. Lin, A. Lipiec, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, S. Luo, X. Luo, G.L. Ma, L. Ma, R. Ma, Y.G. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, O. Matonoha, J.A. Mazer, K. Meehan, J.C. Mei, N.G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M.M. Mondal, I. Mooney, Z. Moravcova, D.A. Morozov, Md. Nasim, K. Nayak, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, G. Odyniec, A. Ogawa, K. Oh, S. Oh, V.A. Okorokov, B.S. Page, R. Pak, Y. Panebratsev, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, R.L. Pintér, 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.V. Rogachevskiy, J.L. Romero, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, J. Schambach, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, F. Shen, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, S. Siejka, R. Sikora, M. Simko, J. Singh, S. Singha, D. Smirnov, N. Smirnov, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, T. Sugiura, M. Sumbera, B. Summa, X.M. Sun, Y. Sun, B. Surrow, D.N. Svirida, P. Szymanski, A.H. Tang, Z. 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, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, F. Wang, G. Wang, P. Wang, Y. Wang, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y.F. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, H. Zbroszczyk, W. Zha, D. Zhang, L. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, Z. Zhang, J. Zhao, C. Zhong, C. Zhou, X. Zhu, Z. Zhu, M. Zurek, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: Quark interactions with topological gluon configurations can induce chirality imbalance and local parity violation in quantum chromodynamics. This can lead to electric charge separation along the strong magnetic field in relativistic heavy-ion collisions – the chiral magnetic effect (CME). We report measurements by the STAR collaboration of a CME-sensitive observable in p+Au and d+Au collisions at 200 GeV, where the CME is not expected, using charge-dependent pair correlations relative to a third particle. We observe strong charge-dependent correlations similar to those measured in heavy-ion collisions. This bears important implications for the interpretation of the heavy-ion data.
Published: 2019
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7. Measurement of inclusive J/ψ suppression in Au+Au collisions at sNN=200 GeV through the dimuon channel at STAR

Author: J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, D.M. Anderson, R. Aoyama, A. Aparin, D. Arkhipkin, E.C. Aschenauer, M.U. Ashraf, F. Atetalla, A. Attri, G.S. Averichev, 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.V. Brandin, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, F.-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, H.J. Crawford, M. Csanád, S. Das, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.C. Dunlop, T. Edmonds, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, J. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, J. Fedorisin, Y. Feng, P. Filip, E. Finch, Y. Fisyak, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, K. Gopal, D. Grosnick, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, L. Holub, Y. Hong, S. Horvat, B. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, T.J. Humanic, P. Huo, G. Igo, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, S. Jowzaee, X. Ju, E.G. Judd, S. Kabana, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, C. Kim, T.A. Kinghorn, I. Kisel, A. Kisiel, M. Kocan, L. Kochenda, L.K. Kosarzewski, L. Kramarik, P. Kravtsov, K. Krueger, N. Kulathunga Mudiyanselage, L. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, C. Li, W. Li, X. Li, Y. Li, Y. Liang, R. Licenik, T. Lin, A. Lipiec, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, S. Luo, X. Luo, G.L. Ma, L. Ma, R. Ma, Y.G. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, O. Matonoha, J.A. Mazer, K. Meehan, J.C. Mei, N.G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M.M. Mondal, I. Mooney, Z. Moravcova, D.A. Morozov, Md. Nasim, K. Nayak, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, G. Odyniec, A. Ogawa, K. Oh, S. Oh, V.A. Okorokov, B.S. Page, R. Pak, Y. Panebratsev, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, R.L. Pintér, 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.V. Rogachevskiy, J.L. Romero, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, J. Schambach, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, F. Shen, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, S. Siejka, R. Sikora, M. Simko, J. Singh, S. Singha, D. Smirnov, N. Smirnov, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, T. Sugiura, M. Sumbera, B. Summa, X.M. Sun, Y. Sun, B. Surrow, D.N. Svirida, P. Szymanski, A.H. Tang, Z. 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, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S.A. Voloshin, F. Wang, G. Wang, P. Wang, Y. Wang, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y.F. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, H. Zbroszczyk, W. Zha, D. Zhang, L. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, Z. Zhang, J. Zhao, C. Zhong, C. Zhou, X. Zhu, Z. Zhu, M. Zurek, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: J/ψ suppression has long been considered a sensitive signature of the formation of the Quark-Gluon Plasma (QGP) in relativistic heavy-ion collisions. In this letter, we present the first measurement of inclusive J/ψ production at mid-rapidity through the dimuon decay channel in Au+Au collisions at sNN=200 GeV with the STAR experiment. These measurements became possible after the installation of the Muon Telescope Detector was completed in 2014. The J/ψ yields are measured in a wide transverse momentum (pT) range of 0.15 GeV/c to 12 GeV/c from central to peripheral collisions. They extend the kinematic reach of previous measurements at RHIC with improved precision. In the 0-10% most central collisions, the J/ψ yield is suppressed by a factor of approximately 3 for pT>5 GeV/c relative to that in p+p collisions scaled by the number of binary nucleon-nucleon collisions. The J/ψ nuclear modification factor displays little dependence on pT in all centrality bins. Model calculations can qualitatively describe the data, providing further evidence for the color-screening effect experienced by J/ψ mesons in the QGP. Keywords: Quark-gluon plasma, Color-screening, J/ψ suppression
Published: 2019
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8. Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p↑ + p collisions at s=500 GeV

Author: 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, A. Attri, G.S. Averichev, V. Bairathi, K. Barish, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, T.G. Dedovich, J. Deng, I.M. Deppner, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.E. Draper, 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, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, J. Fujita, L. Fulek, C.A. Gagliardi, F. Geurts, A. Gibson, M. Girard, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, A. Hirsch, S. Horvat, X. Huang, H.Z. Huang, T. Huang, B. 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, Z. Khan, D.P. Kikoła, C. Kim, I. Kisel, A. Kisiel, L. Kochenda, M. Kocmanek, T. Kollegger, L.K. Kosarzewski, A.F. Kraishan, L. Krauth, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, W. Li, C. Li, X. Li, Y. Li, J. Lidrych, T. Lin, M.A. Lisa, Y. Liu, H. Liu, F. Liu, P. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, S. Luo, L. Ma, Y.G. Ma, G.L. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, D. Mayes, K. Meehan, J.C. Mei, Z.W. Miller, N.G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, Md. Nasim, T.K. Nayak, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt, Jr., B.S. Page, R. Pak, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, J. Pluta, K. Poniatowska, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, A. Quintero, S. Ramachandran, R.L. Ray, R. Reed, M.J. Rehbein, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.D. Roth, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, M. Saur, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, W.Q. Shen, S.S. Shi, Z. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, N. Smirnov, D. 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, X.M. Sun, Y. Sun, B. Surrow, D.N. Svirida, Z. Tang, A.H. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. Thäder, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, B. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, A.N. Vasiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, G. Webb, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, N. Xu, Y.F. Xu, Q.H. Xu, Z. Xu, Y. Yang, C. Yang, S. Yang, Q. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, H. Zbroszczyk, W. Zha, J.B. Zhang, J. Zhang, S. Zhang, Z. Zhang, Y. Zhang, L. Zhang, X.P. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, X. Zhu, Z. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: The transversity distribution, which describes transversely polarized quarks in transversely polarized nucleons, is a fundamental component of the spin structure of the nucleon, and is only loosely constrained by global fits to existing semi-inclusive deep inelastic scattering (SIDIS) data. In transversely polarized p↑+p collisions it can be accessed using transverse polarization dependent fragmentation functions which give rise to azimuthal correlations between the polarization of the struck parton and the final state scalar mesons.This letter reports on spin dependent di-hadron correlations measured by the STAR experiment. The new dataset corresponds to 25 pb−1 integrated luminosity of p↑+p collisions at s=500 GeV, an increase of more than a factor of ten compared to our previous measurement at s=200 GeV. Non-zero asymmetries sensitive to transversity are observed at a Q2 of several hundred GeV and are found to be consistent with the former measurement and a model calculation. We expect that these data will enable an extraction of transversity with comparable precision to current SIDIS datasets but at much higher momentum transfers where subleading effects are suppressed. Keywords: Transversity, Di-hadron correlations, Interference fragmentation function
Published: 2018
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9. Energy dependence of J/ψ production in Au+Au collisions at sNN=39,62.4 and 200GeV

Author: L. Adamczyk, 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, A. Attri, G.S. Averichev, X. Bai, V. Bairathi, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, D. Brown, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, X. Chen, J.H. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. Deng, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.E. Draper, L.E. Dunkelberger, 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, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, J. Fujita, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, S. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, S. Horvat, B. Huang, H.Z. Huang, T. Huang, X. 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, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z. Khan, D.P. Kikoła, I. Kisel, A. Kisiel, L. Kochenda, M. Kocmanek, T. Kollegger, L.K. Kosarzewski, A.F. Kraishan, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y. Li, X. Li, W. Li, C. Li, J. Lidrych, T. Lin, M.A. Lisa, Y. Liu, H. Liu, F. Liu, P. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, S. Luo, X. Luo, G.L. Ma, L. Ma, Y.G. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, K. Meehan, J.C. Mei, Z.W. Miller, N.G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, Md. Nasim, T.K. Nayak, J.M. Nelson, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt, Jr., B.S. Page, R. Pak, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, P. Pile, J. Pluta, K. Poniatowska, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R.L. Ray, R. Reed, M.J. Rehbein, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.D. Roth, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, M. Saur, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, J. Seger, M. Sergeeva, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, A. Sharma, M.K. Sharma, W.Q. Shen, S.S. Shi, Z. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, N. Smirnov, D. Smirnov, W. Solyst, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Strikhanov, B. Stringfellow, T. Sugiura, M. Sumbera, B. Summa, X. Sun, Y. Sun, X.M. Sun, B. Surrow, D.N. Svirida, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. Thäder, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, A.N. Vasiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, W. Xie, G. Xie, J. Xu, N. Xu, Q.H. Xu, Y.F. Xu, Z. Xu, Y. Yang, Q. Yang, C. Yang, S. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, X.P. Zhang, J.B. Zhang, S. Zhang, J. Zhang, Y. Zhang, J. Zhao, C. Zhong, L. Zhou, C. Zhou, X. Zhu, Z. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: The inclusive J/ψ transverse momentum spectra and nuclear modification factors are reported at mid-rapidity (|y|
Published: 2017
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10. Direct virtual photon production in Au+Au collisions at sNN=200 GeV

Author: L. Adamczyk, 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, A. Attri, G.S. Averichev, X. Bai, V. Bairathi, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, D. Brown, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, X. Chen, J.H. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. Deng, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.E. Draper, L.E. Dunkelberger, 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, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, J. Fujita, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, S. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, S. Horvat, B. Huang, T. Huang, H.Z. Huang, X. 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, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z. Khan, D.P. Kikoła, I. Kisel, A. Kisiel, L. Kochenda, M. Kocmanek, T. Kollegger, L.K. Kosarzewski, A.F. Kraishan, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, W. Li, X. Li, C. Li, Y. Li, J. Lidrych, T. Lin, M.A. Lisa, Y. Liu, F. Liu, H. Liu, P. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, S. Luo, X. Luo, G.L. Ma, Y.G. Ma, L. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, K. Meehan, J.C. Mei, Z.W. Miller, N.G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, Md. Nasim, T.K. Nayak, J.M. Nelson, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt, Jr., B.S. Page, R. Pak, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, P. Pile, J. Pluta, K. Poniatowska, J. Porter, M. Posik, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R.L. Ray, R. Reed, M.J. Rehbein, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.D. Roth, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, M. Saur, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, J. Seger, M. Sergeeva, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, A. Sharma, M.K. Sharma, W.Q. Shen, Z. Shi, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, N. Smirnov, D. Smirnov, W. Solyst, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Strikhanov, B. Stringfellow, T. Sugiura, M. Sumbera, B. Summa, Y. Sun, X.M. Sun, X. Sun, B. Surrow, D.N. Svirida, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. Thäder, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, A.N. Vasiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, W. Xie, G. Xie, J. Xu, N. Xu, Q.H. Xu, Y.F. Xu, Z. Xu, Y. Yang, Q. Yang, C. Yang, S. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, X.P. Zhang, J.B. Zhang, S. Zhang, J. Zhang, Y. Zhang, J. Zhao, C. Zhong, L. Zhou, C. Zhou, X. Zhu, Z. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: We report the direct virtual photon invariant yields in the transverse momentum ranges 16 GeV/c the production follows TAA scaling. Model calculations with contributions from thermal radiation and initial hard parton scattering are consistent within uncertainties with the direct virtual photon invariant yield.
Published: 2017
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11. Jet-like correlations with direct-photon and neutral-pion triggers at sNN=200 GeV

Author: L. Adamczyk, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, D.M. Anderson, A. Aparin, D. Arkhipkin, E.C. Aschenauer, M.U. Ashraf, A. Attri, G.S. Averichev, X. Bai, V. Bairathi, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, A. Chatterjee, S. Chattopadhyay, X. Chen, J.H. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. 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, P. Federic, J. Fedorisin, Z. Feng, P. Filip, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, L. Greiner, D. Grosnick, D.S. Gunarathne, Y. Guo, S. Gupta, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, R. Haque, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, S. Horvat, T. Huang, B. Huang, X. Huang, H.Z. Huang, P. Huck, T.J. Humanic, G. Igo, W.W. Jacobs, H. Jang, A. Jentsch, J. Jia, K. Jiang, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z.H. Khan, D.P. Kikoła, I. Kisel, A. Kisiel, L. Kochenda, D.D. Koetke, L.K. Kosarzewski, A.F. Kraishan, P. Kravtsov, K. Krueger, L. Kumar, M.A.C. Lamont, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, Y. Li, C. Li, W. Li, T. Lin, M.A. Lisa, F. Liu, Y. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, S. Luo, G.L. Ma, L. Ma, Y.G. Ma, R. Ma, N. Magdy, R. Majka, A. Manion, S. Margetis, C. Markert, H.S. Matis, D. McDonald, S. McKinzie, K. Meehan, J.C. Mei, Z.W. Miller, N.G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, G. Nigmatkulov, T. Niida, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt Jr., B.S. Page, R. Pak, Y.X. Pan, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, P. Pile, J. Pluta, K. Poniatowska, J. Porter, M. Posik, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R.L. Ray, R. Reed, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, I. Sakrejda, S. Salur, J. Sandweiss, A. Sarkar, J. Schambach, R.P. Scharenberg, A.M. Schmah, W.B. Schmidke, N. Schmitz, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, A. Sharma, B. Sharma, M.K. Sharma, W.Q. Shen, Z. Shi, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, D. Smirnov, N. Smirnov, W. Solyst, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stepanov, R. Stock, M. Strikhanov, B. Stringfellow, M. Sumbera, B. Summa, Y. Sun, Z. Sun, X.M. Sun, B. Surrow, D.N. Svirida, Z. Tang, A.H. Tang, T. Tarnowsky, A. Tawfik, J. Thäder, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, M. Vandenbroucke, R. Varma, A.N. Vasiliev, R. Vertesi, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, H. Wang, F. Wang, Y. Wang, J.S. Wang, G. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, W. Xie, G. Xie, K. Xin, N. Xu, Q.H. Xu, Z. Xu, J. Xu, H. Xu, Y.F. Xu, S. Yang, Y. Yang, C. Yang, Q. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, J.B. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, J. Zhang, J. Zhao, C. Zhong, L. Zhou, X. Zhu, Y. Zoulkarneeva, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: Azimuthal correlations of charged hadrons with direct-photon (γdir) and neutral-pion (π0) trigger particles are analyzed in central Au+Au and minimum-bias p+p collisions at sNN=200 GeV in the STAR experiment. The charged-hadron per-trigger yields at mid-rapidity from central Au+Au collisions are compared with p+p collisions to quantify the suppression in Au+Au collisions. The suppression of the away-side associated-particle yields per γdir trigger is independent of the transverse momentum of the trigger particle (pTtrig), whereas the suppression is smaller at low transverse momentum of the associated charged hadrons (pTassoc). Within uncertainty, similar levels of suppression are observed for γdir and π0 triggers as a function of zT (≡pTassoc/pTtrig). The results are compared with energy-loss-inspired theoretical model predictions. Our studies support previous conclusions that the lost energy reappears predominantly at low transverse momentum, regardless of the trigger energy.
Published: 2016
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12. Di-hadron correlations with identified leading hadrons in 200 GeV Au+Au and d+Au collisions at STAR

Author: L. Adamczyk, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, A. Aparin, D. Arkhipkin, E.C. Aschenauer, G.S. Averichev, X. Bai, V. Bairathi, A. Banerjee, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, D. Brandenburg, A.V. Brandin, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, M.C. Cervantes, I. Chakaberia, P. Chaloupka, Z. Chang, S. Chattopadhyay, X. Chen, J.H. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. 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, P. Federic, J. Fedorisin, Z. Feng, P. Filip, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, L. Greiner, D. Grosnick, D.S. Gunarathne, Y. Guo, S. Gupta, A. Gupta, W. Guryn, A. Hamad, A. Hamed, R. Haque, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, T. Huang, B. Huang, H.Z. Huang, X. Huang, P. Huck, T.J. Humanic, G. Igo, W.W. Jacobs, H. Jang, J. Jia, K. Jiang, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z.H. Khan, D.P. Kikoła, A. Kisiel, L. Kochenda, D.D. Koetke, L.K. Kosarzewski, A.F. Kraishan, P. Kravtsov, K. Krueger, L. Kumar, M.A.C. Lamont, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, W. Li, Z.M. Li, Y. Li, C. Li, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, G.L. Ma, Y.G. Ma, R. Ma, L. Ma, N. Magdy, R. Majka, A. Manion, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, K. Meehan, J.C. Mei, N.G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, G. Nigmatkulov, T. Niida, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V. Okorokov, D. Olvitt Jr., B.S. Page, R. Pak, Y.X. Pan, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, A. Peterson, P. Pile, J. Pluta, K. Poniatowska, J. Porter, M. Posik, A.M. Poskanzer, N.K. Pruthi, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R. Raniwala, S. Raniwala, R.L. Ray, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, A. Roy, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, I. Sakrejda, S. Salur, J. Sandweiss, A. Sarkar, J. Schambach, R.P. Scharenberg, A.M. Schmah, W.B. Schmidke, N. Schmitz, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, B. Sharma, M.K. Sharma, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, N. Smirnov, D. Smirnov, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stepanov, M. Strikhanov, B. Stringfellow, M. Sumbera, B. Summa, Y. Sun, Z. Sun, X.M. Sun, X. Sun, B. Surrow, D.N. Svirida, M.A. Szelezniak, A.H. Tang, Z. Tang, T. Tarnowsky, A. Tawfik, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, M. Vandenbroucke, R. Varma, A.N. Vasiliev, R. Vertesi, F. Videbæk, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, J.S. Wang, F. Wang, H. Wang, G. Wang, Y. Wang, G. Webb, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y.F. Wu, Wu, Z.G. Xiao, W. Xie, K. Xin, H. Xu, Z. Xu, Q.H. Xu, Y.F. Xu, N. Xu, S. Yang, Y. Yang, Q. Yang, C. Yang, Z. Ye, P. Yepes, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Y. Zhang, Z. Zhang, J.B. Zhang, J. Zhang, X.P. Zhang, S. Zhang, J. Zhao, C. Zhong, L. Zhou, X. Zhu, and Y. Zoulkarneeva
Subjects: Physics, QC1-999
Abstract: The STAR Collaboration presents for the first time two-dimensional di-hadron correlations with identified leading hadrons in 200 GeV central Au+Au and minimum-bias d+Au collisions to explore hadronization mechanisms in the quark gluon plasma. The enhancement of the jet-like yield for leading pions in Au+Au data with respect to the d+Au reference and the absence of such an enhancement for leading non-pions (protons and kaons) are discussed within the context of a quark recombination scenario. The correlated yield at large angles, specifically in the ridge region, is found to be significantly higher for leading non-pions than pions. The consistencies of the constituent quark scaling, azimuthal harmonic model and a mini-jet modification model description of the data are tested, providing further constraints on hadronization.
Published: 2015
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13. Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au+Au collisions at sNN=19.6 and 200 GeV

Author: L. Adamczyk, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, A. Aparin, D. Arkhipkin, E.C. Aschenauer, G.S. Averichev, A. Banerjee, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, A.V. Brandin, I. Bunzarov, T.P. Burton, J. Butterworth, H. Caines, M. Calder'on de la Barca S'anchez, J.M. Campbell, D. Cebra, M.C. Cervantes, I. Chakaberia, P. Chaloupka, Z. Chang, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, M.J.M. Codrington, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. 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, P. Federic, J. Fedorisin, Feng, P. Filip, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, L. Greiner, D. Grosnick, D.S. Gunarathne, Y. Guo, S. Gupta, A. Gupta, W. Guryn, A. Hamad, A. Hamed, R. Haque, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, H.Z. Huang, X. Huang, B. Huang, P. Huck, T.J. Humanic, G. Igo, W.W. Jacobs, H. Jang, K. Jiang, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z.H. Khan, D.P. Kikola, I. Kisel, A. Kisiel, S.R. Klein, D.D. Koetke, T. Kollegger, L.K. Kosarzewski, L. Kotchenda, A.F. Kraishan, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, R.A. Kycia, M.A.C. Lamont, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, W. Li, Z.M. Li, Y. Li, C. Li, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, L. Ma, R. Ma, G.L. Ma, Y.G. Ma, N. Magdy, R. Majka, A. Manion, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, K. Meehan, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, G. Nigmatkulov, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V. Okorokov, D.L. Olvitt Jr., B.S. Page, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, A. Peterson, P. Pile, M. Planinic, J. Pluta, N. Poljak, K. Poniatowska, J. Porter, M. Posik, A.M. Poskanzer, N.K. Pruthi, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R. Raniwala, S. Raniwala, R.L. Ray, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, A. Roy, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, I. Sakrejda, S. Salur, A. Sandacz, J. Sandweiss, A. Sarkar, J. Schambach, R.P. Scharenberg, A.M. Schmah, W.B. Schmidke, N. Schmitz, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, M.K. Sharma, B. Sharma, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, M.J. Skoby, N. Smirnov, D. Smirnov, D. Solanki, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, R. Stock, M. Strikhanov, B. Stringfellow, M. Sumbera, B.J. Summa, Y. Sun, Z. Sun, X.M. Sun, X. Sun, B. Surrow, D.N. Svirida, M.A. Szelezniak, J. Takahashi, A.H. Tang, Z. Tang, T. Tarnowsky, A.N. Tawfik, J.H. Thomas, A.R. Timmins, D. Tlusty, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, M. Vandenbroucke, R. Varma, A.N. Vasiliev, R. Vertesi, F. Videbaek, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, Y. Wang, F. Wang, H. Wang, J.S. Wang, G. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, Z. Xu, Q.H. Xu, N. Xu, H. Xu, Y.F. Xu, Y. Yang, C. Yang, S. Yang, Q. Yang, Z. Ye, P. Yepes, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, J.B. Zhang, X.P. Zhang, S. Zhang, J. Zhang, Z. Zhang, Y. Zhang, J.L. Zhang, F. Zhao, J. Zhao, C. Zhong, L. Zhou, X. Zhu, Y. Zoulkarneeva, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: The acceptance-corrected dielectron excess mass spectra, where the known hadronic sources have been subtracted from the inclusive dielectron mass spectra, are reported for the first time at mid-rapidity |yee|
Published: 2015
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14. Long-range pseudorapidity dihadron correlations in d+Au collisions at sNN=200 GeV

Author: L. Adamczyk, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, A. Aparin, D. Arkhipkin, E.C. Aschenauer, G.S. Averichev, A. Banerjee, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, A.V. Brandin, I. Bunzarov, T.P. Burton, J. Butterworth, H. Caines, M. Calder'on de la Barca S'anchez, J.M. Campbell, D. Cebra, M.C. Cervantes, I. Chakaberia, P. Chaloupka, Z. Chang, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, M.J.M. Codrington, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. 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, P. Federic, J. Fedorisin, Feng, P. Filip, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, L. Greiner, D. Grosnick, D.S. Gunarathne, Y. Guo, S. Gupta, A. Gupta, W. Guryn, A. Hamad, A. Hamed, R. Haque, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, H.Z. Huang, X. Huang, B. Huang, P. Huck, T.J. Humanic, G. Igo, W.W. Jacobs, H. Jang, K. Jiang, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z.H. Khan, D.P. Kikola, I. Kisel, A. Kisiel, D.D. Koetke, T. Kollegger, L.K. Kosarzewski, L. Kotchenda, A.F. Kraishan, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, R.A. Kycia, M.A.C. Lamont, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, W. Li, Z.M. Li, Y. Li, C. Li, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, L. Ma, R. Ma, G.L. Ma, Y.G. Ma, N. Magdy, R. Majka, A. Manion, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, K. Meehan, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, G. Nigmatkulov, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V. Okorokov, D.L. Olvitt Jr., B.S. Page, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, A. Peterson, P. Pile, M. Planinic, J. Pluta, N. Poljak, K. Poniatowska, J. Porter, M. Posik, A.M. Poskanzer, N.K. Pruthi, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R. Raniwala, S. Raniwala, R.L. Ray, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, A. Roy, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, I. Sakrejda, S. Salur, A. Sandacz, J. Sandweiss, A. Sarkar, J. Schambach, R.P. Scharenberg, A.M. Schmah, W.B. Schmidke, N. Schmitz, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, M.K. Sharma, B. Sharma, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, M.J. Skoby, N. Smirnov, D. Smirnov, D. Solanki, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, R. Stock, M. Strikhanov, B. Stringfellow, M. Sumbera, B.J. Summa, Y. Sun, Z. Sun, X.M. Sun, X. Sun, B. Surrow, D.N. Svirida, M.A. Szelezniak, J. Takahashi, A.H. Tang, Z. Tang, T. Tarnowsky, A.N. Tawfik, J.H. Thomas, A.R. Timmins, D. Tlusty, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, M. Vandenbroucke, R. Varma, A.N. Vasiliev, R. Vertesi, F. Videbaek, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, Y. Wang, F. Wang, H. Wang, J.S. Wang, G. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, Z. Xu, Q.H. Xu, N. Xu, H. Xu, Y.F. Xu, Y. Yang, C. Yang, S. Yang, Q. Yang, Z. Ye, P. Yepes, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, J.B. Zhang, X.P. Zhang, S. Zhang, J. Zhang, Z. Zhang, Y. Zhang, J.L. Zhang, F. Zhao, J. Zhao, C. Zhong, L. Zhou, X. Zhu, Y. Zoulkarneeva, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: Dihadron angular correlations in d+Au collisions at sNN=200 GeV are reported as a function of the measured zero-degree calorimeter neutral energy and the forward charged hadron multiplicity in the Au-beam direction. A finite correlated yield is observed at large relative pseudorapidity (Δη) on the near side (i.e. relative azimuth Δϕ∼0). This correlated yield as a function of Δη appears to scale with the dominant, primarily jet-related, away-side (Δϕ∼π) yield. The Fourier coefficients of the Δϕ correlation, Vn=〈cos⁡nΔϕ〉, have a strong Δη dependence. In addition, it is found that V1 is approximately inversely proportional to the mid-rapidity event multiplicity, while V2 is independent of it with similar magnitude in the forward (d-going) and backward (Au-going) directions.
Published: 2015
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15. Isolation of flow and nonflow correlations by two- and four-particle cumulant measurements of azimuthal harmonics in sNN=200 GeV Au+Au collisions

Author: N.M. Abdelwahab, L. Adamczyk, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, C.D. Anson, A. Aparin, D. Arkhipkin, E.C. Aschenauer, G.S. Averichev, A. Banerjee, D.R. Beavis, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, W. Borowski, J. Bouchet, A.V. Brandin, S.G. Brovko, S. Bültmann, I. Bunzarov, T.P. Burton, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, R. Cendejas, M.C. Cervantes, P. Chaloupka, Z. Chang, S. Chattopadhyay, H.F. Chen, J.H. Chen, L. Chen, J. Cheng, M. Cherney, A. Chikanian, W. Christie, M.J.M. Codrington, G. Contin, J.G. Cramer, H.J. Crawford, X. Cui, S. Das, A. Davila Leyva, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. Deng, A.A. Derevschikov, R. Derradi de Souza, B. di Ruzza, L. Didenko, C. Dilks, F. Ding, P. Djawotho, X. Dong, J.L. Drachenberg, J.E. Draper, C.M. Du, L.E. Dunkelberger, J.C. Dunlop, L.G. Efimov, J. Engelage, K.S. Engle, G. Eppley, L. Eun, O. Evdokimov, O. Eyser, R. Fatemi, S. Fazio, J. Fedorisin, P. Filip, Y. Fisyak, C.E. Flores, C.A. Gagliardi, D.R. Gangadharan, D. Garand, F. Geurts, A. Gibson, M. Girard, S. Gliske, L. Greiner, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, S. Gupta, W. Guryn, B. Haag, A. Hamed, L-X. Han, R. Haque, J.W. Harris, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, B. Huang, H.Z. Huang, X. Huang, P. Huck, T.J. Humanic, G. Igo, W.W. Jacobs, H. Jang, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, A. Kesich, Z.H. Khan, D.P. Kikola, I. Kisel, A. Kisiel, D.D. Koetke, T. Kollegger, J. Konzer, I. Koralt, L.K. Kosarzewski, L. Kotchenda, A.F. Kraishan, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, R.A. Kycia, M.A.C. Lamont, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, C. Li, W. Li, X. Li, Y. Li, Z.M. Li, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, G.L. Ma, Y.G. Ma, D.P. Mahapatra, R. Majka, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, T.S. McShane, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, J.M. Nelson, G. Nigmatkulov, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E.W. Oldag, D.L. Olvitt, Jr., B.S. Page, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, P. Pile, M. Planinic, J. Pluta, N. Poljak, K. Poniatowska, J. Porter, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R. Raniwala, S. Raniwala, R.L. Ray, C.K. Riley, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.F. Ross, A. Roy, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, I. Sakrejda, S. Salur, A. Sandacz, J. Sandweiss, E. Sangaline, A. Sarkar, J. Schambach, R.P. Scharenberg, A.M. Schmah, W.B. Schmidke, N. Schmitz, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, B. Sharma, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, M. Simko, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, J.R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, M. Sumbera, X. Sun, X.M. Sun, Y. Sun, Z. Sun, B. Surrow, D.N. Svirida, T.J.M. Symons, M.A. Szelezniak, J. Takahashi, A.H. Tang, Z. Tang, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, B.A. Trzeciak, O.D. Tsai, J. Turnau, T. Ullrich, D.G. Underwood, G. Van Buren, G. van Nieuwenhuizen, M. Vandenbroucke, J.A. Vanfossen, Jr., R. Varma, G.M.S. Vasconcelos, A.N. Vasiliev, R. Vertesi, F. Videbæk, Y.P. Viyogi, S. Vokal, A. Vossen, M. Wada, F. Wang, G. Wang, H. Wang, J.S. Wang, X.L. Wang, Y. Wang, G. Webb, J.C. Webb, G.D. Westfall, H. Wieman, S.W. Wissink, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, H. Xu, J. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, W. Yan, C. Yang, Y. Yang, Z. Ye, P. Yepes, L. Yi, K. Yip, I-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, J.B. Zhang, J.L. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, Z.P. Zhang, F. Zhao, J. Zhao, C. Zhong, X. Zhu, Y.H. Zhu, Y. Zoulkarneeva, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: A data-driven method was applied to Au+Au collisions at sNN=200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance Δη-dependent and Δη-independent correlations by using two- and four-particle azimuthal cumulant measurements. We identified a Δη-independent component of the correlation, which is dominated by anisotropic flow and flow fluctuations. It was also found to be independent of η within the measured range of pseudorapidity |η|0.7. Keywords: Heavy-ion, Flow, Nonflow
Published: 2015
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16. Effect of event selection on jetlike correlation measurement in d+Au collisions at sNN=200 GeV

Author: L. Adamczyk, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, A. Aparin, D. Arkhipkin, E.C. Aschenauer, G.S. Averichev, A. Banerjee, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, A.V. Brandin, I. Bunzarov, T.P. Burton, J. Butterworth, H. Caines, M. Calder'on de la Barca S'anchez, J.M. Campbell, D. Cebra, M.C. Cervantes, I. Chakaberia, P. Chaloupka, Z. Chang, S. Chattopadhyay, J.H. Chen, J. Cheng, M. Cherney, W. Christie, M.J.M. Codrington, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. Deng, A.A. Derevschikov, R. Derradi de Souza, 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, P. Federic, J. Fedorisin, Feng, P. Filip, Y. Fisyak, C.E. Flores, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, L. Greiner, D. Grosnick, D.S. Gunarathne, Y. Guo, S. Gupta, A. Gupta, W. Guryn, A. Hamad, A. Hamed, R. Haque, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, H.Z. Huang, X. Huang, B. Huang, P. Huck, T.J. Humanic, G. Igo, W.W. Jacobs, H. Jang, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z.H. Khan, D.P. Kikola, I. Kisel, A. Kisiel, S.R. Klein, D.D. Koetke, T. Kollegger, L.K. Kosarzewski, L. Kotchenda, A.F. Kraishan, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, R.A. Kycia, M.A.C. Lamont, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, C. Li, W. Li, Z.M. Li, Y. Li, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, L. Ma, G.L. Ma, Y.G. Ma, R. Ma, N. Magdy, R. Majka, A. Manion, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, G. Nigmatkulov, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V. Okorokov, D.L. Olvitt, Jr., B.S. Page, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, P. Pile, M. Planinic, J. Pluta, N. Poljak, K. Poniatowska, J. Porter, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R. Raniwala, S. Raniwala, R.L. Ray, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, A. Roy, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, I. Sakrejda, S. Salur, A. Sandacz, J. Sandweiss, A. Sarkar, J. Schambach, R.P. Scharenberg, A.M. Schmah, W.B. Schmidke, N. Schmitz, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, B. Sharma, M.K. Sharma, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, M. Simko, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, R. Stock, M. Strikhanov, B. Stringfellow, M. Sumbera, B.J. Summa, Z. Sun, Y. Sun, X. Sun, X.M. Sun, B. Surrow, D.N. Svirida, M.A. Szelezniak, J. Takahashi, Z. Tang, A.H. Tang, T. Tarnowsky, A.N. Tawfik, J.H. Thomas, A.R. Timmins, D. Tlusty, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, J. Turnau, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, M. Vandenbroucke, R. Varma, G.M.S. Vasconcelos, A.N. Vasiliev, R. Vertesi, F. Videbaek, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, J.S. Wang, Y. Wang, F. Wang, G. Wang, H. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, Q.H. Xu, H. Xu, N. Xu, Y.F. Xu, Z. Xu, W. Yan, Y. Yang, Q. Yang, C. Yang, S. Yang, Z. Ye, P. Yepes, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, J.B. Zhang, X.P. Zhang, S. Zhang, Z. Zhang, Y. Zhang, J.L. Zhang, F. Zhao, J. Zhao, C. Zhong, X. Zhu, Y. Zoulkarneeva, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: Dihadron correlations are analyzed in sNN=200 GeV d+Au collisions classified by forward charged particle multiplicity and zero-degree neutral energy in the Au-beam direction. It is found that the jetlike correlated yield increases with the event multiplicity. After taking into account this dependence, the non-jet contribution on the away side is minimal, leaving little room for a back-to-back ridge in these collisions.
Published: 2015
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17. The proton–Ω correlation function in Au + Au collisions at sNN=200GeV

Author: M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Roli Esha, Daniel Nemes, Jie Zhao, S. Horvat, Anik Gupta, L. C. Bland, B. J. Summa, J. Y. Zhang, F. Videbæk, A. Lipiec, J. Porter, P. Sorensen, David Brown, W. Zha, Frank Jm Geurts, T. Galatyuk, N. Yu, E. P. Sichtermann, S. Ramachandran, L. V. Nogach, B. Pawlik, F. Liu, Miroslav Simko, Mariusz Przybycien, Sumit R. Das, Y. Yang, Sukalyan Chattopadhyay, Siwei Luo, O. Eyser, C. Zhou, A. Gibson, J. H. Thomas, L. P. Zhou, F-H. Chang, Q. Yang, G. S. Averichev, K. Meehan, Shize Yang, Madan M. Aggarwal, Fuqiang Wang, L. Didenko, I. Chakaberia, I. K. Yoo, J. K. Adkins, A. Harlenderova, F. Seck, Md. Nasim, R. D. Majka, L. Zhang, Wei Xie, D. K. Mishra, Xiangming Sun, M. Posik, H. M. Spinka, Arka Chatterjee, J. M. Campbell, Q. H. Xu, R. Witt, R. Fatemi, L. He, Shaji Kumar, Todd Kinghorn, D. Kalinkin, T. Ullrich, A. Aparin, I. G. Alekseev, W. Guryn, J. Schambach, H. Z. Huang, S. Vokal, J. Xu, N. Kulathunga, S. Mioduszewski, S. Fazio, A. Vossen, T. G. Dedovich, J. D. Negrete, M. A. Lisa, J. C. Mei, K. Krueger, S. Esumi, J. Fedorisin, M. M. Mondal, J. C. Webb, Isaac Mooney, N. Xu, P. Filip, N. Schmitz, Zebo Tang, Xiaofeng Luo, I. Kisel, Guo-Liang Ma, W. Christie, Li Yi, E. Shahaliev, Prithwish Tribedy, B. K. Srivastava, Chi Yang, Jaroslav Bielcik, D. G. Underwood, R. Seto, Xiaofeng Zhu, Ying Liang, J. Lidrych, G. D. Westfall, N. K. Pruthi, A. S. Hirsch, M. Cherney, Shengli Huang, Y. Li, S. Singha, Andrey Vasiliev, G. Eppley, P. Chaloupka, Ting Lin, J. Jia, Arabinda Behera, C. E. Flores, A. Ogawa, E. G. Judd, O. V. Rogachevskiy, P. Kravtsov, Fuwang Shen, A. M. Schmah, Jana Bielcikova, Z. J. Xu, D. N. Svirida, J. Pluta, J. L. Romero, J. Cheng, M. Tokarev, D. A. Morozov, A. Quintero, N. Chankova-Bunzarova, W. Li, I. Vassiliev, Muhammad Usman Ashraf, P. Federic, Lokesh Kumar, Hua Pei, S. K. Tripathy, X.G. Li, J. C. Dunlop, L. Wen, Lukas Kramarik, C. Perkins, J. W. Harris, Zongye Zhang, Y. Guo, J. M. Nelson, W. J. Llope, C. Zhong, E. C. Aschenauer, S. Trentalange, M. Zyzak, E. Finch, I. G. Bordyuzhin, Sergey Voloshin, Zubayer Ahammed, Xuedong Bai, Janet Elizabeth Seger, S. Margetis, D. L. Olvitt, L. Ma, Vitaly Okorokov, G. Agakishiev, D. S. Gunarathne, I. M. Deppner, G. Wang, Rene Bellwied, X. Dong, Bernd Surrow, Anju Bhasin, N. Elsey, G. Xie, J. Bryslawskyj, D. Mayes, Z. Chang, A. J. Bassill, D. Cebra, K. Jiang, J. A. Mazer, Giacomo Contin, K. Kauder, R. E. Tribble, W. B. Schmidke, Alexander Jentsch, T. D. S. Stanislaus, Yanjun Wu, Tetsuro Sugiura, K. Kang, T. Niida, Q. Y. Shou, C. A. Gagliardi, D. Kapukchyan, P. Federicova, C-Q. Li, D. Arkhipkin, A. Hamed, Arkadiy Taranenko, Zhanwen Zhu, Y. J. Sun, A. Lebedev, H. H. Wieman, Nihar Sahoo, C. Dilks, X. C. Chen, Christina Markert, D. Smirnov, O. Rusnakova, Michal Sumbera, R. Pak, J. Rusnak, J. L. Drachenberg, H. S. Matis, A. A. P. Suaide, Olga Evdokimov, B. Huang, Song Zhang, S. Kabana, A. H. Tang, L. K. Kosarzewski, A. F. Kraishan, Justin Ewigleben, I. Upsal, M. Sergeeva, S. B. Nurushev, W. W. Jacobs, J. Engelage, Catherine Tomkiel, B.R. Schweid, T. J. Humanic, J. Lauret, Anthony Robert Timmins, N.N. Ajitanand, L. Ruan, Joseph Kwasizur, Jay Roberts, Adam Ryszard Kisiel, R. Lednicky, L. Kochenda, T. Tarnowsky, G. Odyniec, G. Nigmatkulov, M. Shao, G. Van Buren, H. J. Crawford, Z. Ye, Jaroslav Adam, Maowu Nie, X. Huang, A. Attri, A. Kechechyan, S. S. Shi, H. W. Ke, S. K. Radhakrishnan, S. W. Wissink, L. Fulek, Pradip Kumar Sahu, T. Nonaka, B. S. Page, Y. Zhang, I. Bunzarov, O. Matonoha, D. P. Kikola, B. Stringfellow, J. M. Landgraf, R. S. Longacre, Jing-Han Chen, P. Huo, Lukas Holub, Bedangadas Mohanty, T. Todoroki, M. Strikhanov, Chong Kim, H. G. Ritter, Xuan Zhang, P. V. Shanmuganathan, Zhigang Xiao, T. Huang, J. Sandweiss, J. R. Adams, Yunpeng Liu, Derek Anderson, R. Aoyama, A. K. Bhati, N. G. Minaev, D. Mallick, W. Solyst, D. Keane, Hanna Paulina Zbroszczyk, G. Igo, Nikolai Smirnov, N. Herrmann, L. Krauth, Jongmin Lee, L. G. Efimov, R. L. Ray, R. Ma, J. Butterworth, Y. F. Xu, R. Kunnawalkam Elayavalli, R. Reed, T. Ljubicic, S. Siejka, Niseem Magdy, H. Caines, M. Lomnitz, Y. Panebratsev, Saehanseul Oh, D. Grosnick, Yu-Gang Ma, Y. Fisyak, Samuel Heppelmann, K. Oh, R. Lacey, P. Szymanski, B. Tu, P. Seyboth, Jan Vanek, Leszek Adamczyk, D. Tlusty, F. G. Atetalla, O. D. Tsai, Peter Q. Liu, J. Kvapil, Nilay Shah, W. Q. Shen, Jorn Henning Putschke, A. V. Brandin, Xiang Sun, Vipul Bairathi, James Brandenburg, K. N. Barish, H. Liu, A. A. Derevschikov, David Stewart, Sevil Salur, Y. Wang, K. Yip, and Rafal Sikora
Subjects: Physics, Nuclear and High Energy Physics, Proton, 010308 nuclear & particles physics, Nuclear Theory, Binding energy, Lattice QCD, 01 natural sciences, Nuclear physics, Momentum, Correlation function, 0103 physical sciences, Bound state, Impact parameter, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: We present the first measurement of the proton–Ω correlation function in heavy-ion collisions for the central (0–40%) and peripheral (40–80%) Au + Au collisions at 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–Ω correlation function are sensitive to the presence of a nucleon–Ω bound state. These predictions are based on the proton–Ω interaction extracted from ( 2 + 1 ) -flavor lattice QCD calculations at the physical point. The measured ratio of the proton–Ω 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–Ω bound system with a binding energy of ∼ 27 MeV.
Published: 2019

18. Strange hadron production in Au+Au collisions at sNN=7.7 , 11.5, 19.6, 27, and 39 GeV

Author: S. Fazio, I. G. Bordyuzhin, James Brandenburg, K. N. Barish, Z. Ye, T. Tarnowsky, Maowu Nie, A. Kechechyan, Pradip Kumar Sahu, Maria Stefaniak, Lukas Holub, Subhasis Chattopadhyay, Bedangadas Mohanty, F. G. Atetalla, G. Eppley, Pavol Federic, A. A. Derevschikov, Dingwei Zhang, J. Pluta, N. Chankova-Bunzarova, Muhammad Usman Ashraf, Skipper Kagamaster, Subhash Singha, Y. K. Sun, Bernd Surrow, Paul Sorensen, Rene Bellwied, Brian Page, Yifan Hong, John Nelson, Nu Xu, Raghav Kunnawalkam Elayavalli, Xiangming Sun, Kejun Kang, L. V. Nogach, Jana Bielcikova, B. Huang, Z. Moravcova, N. K. Pruthi, O. D. Tsai, Xinyue Ju, Zhen Liu, Feng Liu, Norbert Herrmann, N. Elsey, J. Putschke, Chris Perkins, K. Gopal, Lanny Ray, A. V. Brandin, Janet Elizabeth Seger, Z. Chang, I. M. Deppner, Song Zhang, Neha Shah, Zebo Tang, A. Ogawa, Takafumi Niida, Vipul Bairathi, Lokesh Kumar, C. A. Gagliardi, Hans Georg Ritter, Jeong-Hun Lee, Peifeng Liu, F. Videbæk, Dmitri Smirnov, Hal Spinka, D. P. Kikola, H. Liu, Joseph Kwasizur, C. Zhong, E. C. Aschenauer, Wen-Qing Shen, Jaroslav Adam, Madan M. Aggarwal, David Stewart, Irakli Chakaberia, B. Stringfellow, Saskia Mioduszewski, Shusu Shi, M. Tokarev, Yang Yang, Matthew Kelsey, Yuanjing Ji, J. Engelage, Robert E. Tribble, Fuqiang Wang, D. K. Mishra, L. Didenko, Y. Fisyak, Qian Yang, Xiaolong Chen, Yaping Wang, Arabinda Behera, Richard Daniel Majka, X. Dong, B. Schmidke, Liang He, Hao-jie Xu, I. K. Yoo, Xiaoyu Liu, P. Chaloupka, Ting Lin, K. Oh, Chitrasen Jena, X. Zhu, Yifei Zhang, G. Nigmatkulov, Alexandre Alarcon Do Passo Suaide, Rongrong Ma, S. W. Wissink, Miroslav Simko, Ron Longacre, Mariusz Przybycien, F. Seck, P. Szymanski, A. I. Hamad, Sedigheh Jowzaee, Isaac Upsal, Dave Underwood, Xinjie Huang, Prithwish Tribedy, B. K. Srivastava, Juan M. Romero, Sevil Salur, M. Sergeeva, Qinghua Xu, Maksym Zyzak, J. Rusnak, Christina Markert, H. H. Wieman, O. Rusnakova, H. S. Matis, Nihar Sahoo, Cheng Li, D. Kapukchyan, Declan Keane, J. M. Landgraf, M. Lomnitz, Diana Pawlowska, L. K. Kosarzewski, E. P. Sichtermann, J. Lauret, Jing-Han Chen, Qiye Shou, Shengli Huang, M. Posik, H. W. Ke, L. Fulek, M. M. Mondal, E. G. Judd, P. Seyboth, Jan Vanek, Leszek Adamczyk, Shuai Yang, J. Schambach, D. Kalinkin, Xiaofeng Luo, Guo-Liang Ma, Chensheng Zhou, Alexander Vasiliev, Yevheniia Khyzhniak, S. Stanislaus, L. Kochenda, J. W. Harris, M. Kocan, Robert Licenik, I. G. Alekseev, Anthony Robert Timmins, Adam Ryszard Kisiel, Chong Kim, Siwei Luo, Anju Bhasin, R. Seto, Jianping Cheng, Li Yi, Z. Tu, M. A. Lisa, J. C. Mei, Tetsuro Sugiura, A. J. Bassill, J. C. Dunlop, L. Wen, L. Ruan, ShinIchi Esumi, B. K. Chan, Michal Sumbera, T. Ullrich, S. Heppelmann, C. Dilks, Roland Laszlo Pinter, Xin Li, B. J. Summa, Jaroslav Bielcik, T. G. Dedovich, Dmitry Morozov, M. Strikhanov, K. Yip, Zubayer Ahammed, Joseph Adams, Catherine Tomkiel, Hank Crawford, H. Z. Huang, Kishora Nayak, Rafal Sikora, S. Kabana, Ivan Kisel, P. Kravtsov, Fuwang Shen, J. Bryslawskyj, R. Fatemi, A. Lebedev, Manuel Calderon De La Barca Sanchez, Gang Wang, I. Bunzarov, O. Matonoha, Norbert Schmitz, Z. Y. Zhang, Yu-Gang Ma, Jiangyong Jia, Todd Kinghorn, Nalinda Kulathunga Mudiyanselage, O. V. Rogachevskiy, Vitalii Okorokov, Yi Wang, T. Nonaka, T. Todoroki, Guannan Xie, Isaac Mooney, Shenghui Zhang, Ming Shao, L. C. Bland, Arghya Chatterjee, R. Lednicky, Wei Li, Justin Ewigleben, A. Gibson, G. Odyniec, J. Sandweiss, William Jacobs, Hanna Paulina Zbroszczyk, Roli Esha, Feng-Han Chang, A. K. Bhati, T. Ljubicic, Wei Xie, M. Cherney, I. Vassiliev, Chi Yang, Rosi Reed, Daniel Nemes, S. Siejka, J. H. Thomas, Yuliang Sun, Jie Zhao, H. Caines, Yi-Fei Xu, A. Quintero, A. H. Tang, Mate Csanad, Hua Pei, Nasim, D. N. Svirida, S. K. Tripathy, R. Pak, A. Aparin, S. Ramachandran, J. L. Drachenberg, Olga Evdokimov, Yuanjing Li, Niseem Magdy Abdelwahab Abdelrahman, G. S. Averichev, Zhigang Xiao, Jagbir Singh, T. Huang, Nikolai Smirnov, O. Eyser, W. J. Llope, Joel Anthony Mazer, Z. Yang, Derek Anderson, Kun Jiang, Jay Roberts, Benjamin Schweid, T. J. Humanic, Alexander Jentsch, Zhenyu Ye, N. G. Minaev, Maria Zurek, A. Attri, K. Krueger, P. Huo, D. Arkhipkin, A. Hamed, E. Shahaliev, P. Filip, Yicheng Feng, Yang Wu, Anik Gupta, R. Witt, Lei Zhang, Xiaoping Zhang, J. M. Butterworth, Sergei A. Voloshin, Spiros Margetis, Gene Van Buren, Bill Christie, J. C. Webb, D. Tlusty, A. Lipiec, Zhongbin Xu, Lukas Kramarik, Frank Jm Geurts, T. Galatyuk, Sooraj Krishnan Radhakrishnan, E. Finch, W. Zha, Peng Liu, Wlodek Guryn, S. Vokal, Yue Liang, Y. Panebratsev, W. Solyst, Saehanseul Oh, D. Grosnick, J. Porter, R. Aoyama, Samuel Heppelmann, B. Tu, Tong Liu, S. Das, K. Meehan, G. Agakishiev, S. Horvat, Roy A. Lacey, T. Edmonds, Pengfei Wang, Gary Westfall, D. Cebra, S. Trentalange, Zhanwen Zhu, Kevin Adkins, Long Ma, Yanfang Liu, J. Fedorisin, B. Pawlik, P. V. Shanmuganathan, D. Mallick, G. Igo, K. Kauder, and A. Taranenko
Subjects: Physics, Strange quark, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Strangeness production, Strangeness, 01 natural sciences, Baryon, Nuclear physics, 0103 physical sciences, Transverse mass, High Energy Physics::Experiment, Impact parameter, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present STAR measurements of strange hadron (KS0, Λ, Λ¯, Ξ−, Ξ¯+, Ω−, Ω¯+, and ϕ) production at midrapidity (|y
Published: 2020

19. Beam energy dependence of net- Λ fluctuations measured by the STAR experiment at the BNL Relativistic Heavy Ion Collider

Author: A. Gibson, D. Kalinkin, S. Heppelmann, N. Kulathunga Mudiyanselage, B. J. Summa, Olga Evdokimov, S. Ramachandran, O. Eyser, Y. Yang, Nilay Shah, W. J. Llope, L. V. Nogach, Jay Roberts, J. Engelage, G. Nigmatkulov, Maria Zurek, J. M. Landgraf, M. Sergeeva, Jongmin Lee, C. Zhou, R. Ma, M. Strikhanov, K. Krueger, Yicheng Feng, H. Z. Huang, S. Vokal, G. Odyniec, J. Sandweiss, Mate Csanad, Joel Anthony Mazer, Z. Yang, Alexander Jentsch, J. Bryslawskyj, Lei Zhang, D. Tlusty, Shangfeng Yang, J. H. Chen, Rajarshi Ray, Niladribihari Sahoo, Tong Liu, B. S. Page, Avishek Chatterjee, Y. Hong, C. Yang, T. Ljubicic, D. P. Kikola, R. Witt, D. A. Morozov, T. Edmonds, Wei Xie, A. Attri, Y. Li, S. Mioduszewski, B. Stringfellow, A. Aparin, H. Caines, P. Federic, Prithwish Tribedy, B. K. Srivastava, Tetsuro Sugiura, Y. J. Sun, Shengli Huang, C. Dilks, Guannan Xie, A. Quintero, Xuan Zhang, S. Kabana, A. Ewigleben, K. Yip, C. Zhong, J. C. Dunlop, L. Wen, N. Schmitz, E. Shahaliev, Vitaly Okorokov, Bernd Surrow, J. M. Butterworth, N. Elsey, J. C. Webb, W. B. Schmidke, A. V. Brandin, Zebo Tang, I. Vassiliev, Zubayer Ahammed, C. A. Gagliardi, W. Solyst, J. Rusnak, Jiangyong Jia, E. P. Sichtermann, M. Kocan, Hanna Paulina Zbroszczyk, J. B. Singh, Q. Y. Shou, Madan M. Aggarwal, Fuqiang Wang, L. Ruan, J. H. Thomas, D. K. Mishra, R. Pak, Vipul Bairathi, Irakli Chakaberia, Jana Bielcikova, X. C. Chen, I. G. Alekseev, M. A. Lisa, J. C. Mei, D. Zhang, Robert Licenik, Isaac Mooney, F-H. Chang, S. Esumi, Anthony Robert Timmins, Adam Ryszard Kisiel, J. L. Romero, J. D. Brandenburg, Roland Laszlo Pinter, H. J. Crawford, J. K. Adkins, G. S. Averichev, C. Perkins, Jaroslav Bielcik, J. Porter, R. Fatemi, L. He, T. Ullrich, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, G. Agakishiev, Roli Esha, Todd Kinghorn, Ivan Kisel, D. Cebra, T. G. Dedovich, I. Upsal, Zhanwen Zhu, O. V. Rogachevskiy, L. Didenko, Maria Stefaniak, E. Finch, Daniel Nemes, S. Horvat, M. Cherney, Z. Ye, H. S. Xu, Zhigang Xiao, T. Huang, Muhammad Usman Ashraf, Hua Pei, Z. Chang, S. K. Tripathy, R. Reed, K. N. Barish, Maowu Nie, F. Seck, Yunpeng Liu, M. Posik, X. Huang, A. Kechechyan, Arabinda Behera, Sergey Voloshin, H. M. Spinka, P. V. Shanmuganathan, Pradip Kumar Sahu, T. Nonaka, N. G. Minaev, Xinyue Ju, E. C. Aschenauer, J. W. Harris, T. Tarnowsky, X. M. Sun, X. G. Luo, P. Sorensen, Joseph Kwasizur, A. H. Tang, S. Margetis, K. Jiang, Pengdong Wang, M. Tokarev, Y. Wang, Y. F. Wu, N. Xu, P. Filip, M. Shao, G. Van Buren, I. Bunzarov, A. A. Derevschikov, O. Matonoha, P. Szymanski, X. Dong, T. D. S. Stanislaus, H. H. Wieman, S. S. Shi, R. Kunnawalkam Elayavalli, G. D. Westfall, S. Das, A. Gupta, Frank Jm Geurts, T. Galatyuk, D. Kapukchyan, J. M. Nelson, R. Seto, A. Lipiec, K. Meehan, Y. G. Ma, W. Zha, Lokesh Kumar, Jaroslav Adam, Peng Huo, L. C. Bland, W. Guryn, R. Lacey, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, B. K. Chan, Michal Sumbera, J. Fedorisin, A. A. P. Suaide, D. G. Underwood, Catherine Tomkiel, J. Cheng, S. W. Wissink, Y. Zhang, Dukhishyam Mallick, Xiaoyu Liu, M. M. Mondal, E. G. Judd, N. Magdy, Lukas Holub, Bedangadas Mohanty, Z. Liu, F. Videbæk, Sukalyan Chattopadhyay, Chitrasen Jena, M. Lomnitz, Diana Pawlowska, Yunlan Ji, Anju Bhasin, A. J. Bassill, K. Kang, B. Huang, T. Niida, A. Lebedev, L. Adamczyk, Guo-Liang Ma, Li Yi, R. S. Longacre, Z. Moravcova, P. Kravtsov, Fuwang Shen, Dmitry Smirnov, N. K. Pruthi, G. Igo, K. Kauder, A. Taranenko, Chong Kim, G. Eppley, Qi Yang, Donald M. Anderson, H. G. Ritter, W. Christie, Q. H. Xu, P. Chaloupka, Ting Lin, J. Pluta, M. Zyzak, Rafal Sikora, Subhash Singha, Andrey Vasiliev, J. R. Adams, S. Trentalange, P. Seyboth, N. Chankova-Bunzarova, W. Li, X.G. Li, Skipper Kagamaster, Janet Elizabeth Seger, Y. F. Xu, B. Pawlik, I. M. Deppner, J. Putschke, Jan Vanek, Rene Bellwied, Xiaofeng Zhu, Ying Liang, F. Liu, Miroslav Simko, S. Zhang, Mariusz Przybycien, R. E. Tribble, Jize Zhao, A. Ogawa, D. N. Svirida, H. Liu, Md. Nasim, R. D. Majka, J. L. Drachenberg, J. Schambach, Benjamin Schweid, T. J. Humanic, A. Hamed, H. W. Ke, L. Fulek, S. Fazio, Zongye Zhang, I. G. Bordyuzhin, M. H. Kelsey, G. Wang, C-Q. Li, Christina Markert, O. Rusnakova, H. S. Matis, L. K. Kosarzewski, N. Herrmann, W. W. Jacobs, J. Lauret, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, Z. Tu, S. Siejka, Y. Fisyak, Lin Ma, F. G. Atetalla, O. D. Tsai, W. Q. Shen, K. Gopal, David Stewart, Sevil Salur, Peng Liu, Y. Panebratsev, Saehanseul Oh, D. Grosnick, R. Aoyama, Z. Z. Xu, B. Tu, Nikita Smirnov, K. Nayak, D. Keane, and Siwei Luo
Subjects: Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, Strangeness, Quantum number, 01 natural sciences, Hadronization, Nuclear physics, 0103 physical sciences, Rapidity, Baryon number, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: The measurements of particle multiplicity distributions have generated considerable interest in understanding the fluctuations of conserved quantum numbers in the quantum chromodynamics (QCD) hadronization regime, in particular near a possible critical point and near the chemical freeze-out. Net-protons and net-kaons have been used as proxies for the net-baryon number and net-strangeness, respectively. We report the measurement of efficiency- and centrality-bin width-corrected cumulant ratios (C2/C1, C3/C2) of net-Λ distributions, in the context of both strangeness and baryon number conservation, as a function of collision energy, centrality, and rapidity. The results are for Au+Au collisions at five beam energies (sNN=19.6, 27, 39, 62.4, and 200 GeV) recorded with the Solenoidal Tracker at RHIC (STAR). We compare our results to the Poisson and negative binomial (NBD) expectations, as well as to ultrarelativistic quantum molecular dynamics (UrQMD) and hadron resonance gas (HRG) model predictions. Both NBD and Poisson baselines agree with data within the statistical and systematic uncertainties. UrQMD describes the measured net-ΛC1 and C3 at 200 GeV reasonably well but deviates from C2, and the deviation increases as a function of collision energy. The ratios of the measured cumulants show no features of critical fluctuations. The chemical freeze-out temperatures extracted from a recent HRG calculation, which was successfully used to describe the net-proton, net-kaon, and net-charge data, indicate Λ freeze-out conditions similar to those of kaons. However, large deviations are found when comparing with temperatures obtained from net-proton fluctuations. The net-Λ cumulants show a weak but finite dependence on the rapidity coverage in the acceptance of the detector, which can be attributed to quantum number conservation.
Published: 2020

20. Beam-energy dependence of identified two-particle angular correlations in sNN=7.7–200 GeV Au+Au collisions

Author: Mate Csanad, J. B. Singh, Chitrasen Jena, Joel Anthony Mazer, Z. Yang, D. Tlusty, M. Lomnitz, Diana Pawlowska, Roli Esha, Yunlan Ji, T. G. Dedovich, Daniel Nemes, J. W. Harris, S. Horvat, N. S. Lukow, Niladribihari Sahoo, Tong Liu, B. Huang, Guo-Liang Ma, X. C. Chen, D. Kincses, X. G. Luo, B. K. Chan, Michal Sumbera, A. A. P. Suaide, Catherine Tomkiel, Jaroslav Bielcik, Z. Moravcova, Li Yi, P. Kravtsov, Fuwang Shen, B. Pawlik, A. H. Tang, Pengdong Wang, N. K. Pruthi, Y. Hu, W. Zha, P. Seyboth, I. G. Alekseev, M. A. Lisa, J. C. Mei, A. V. Brandin, O. Matonoha, O. V. Rogachevskiy, Robert Licenik, Anthony Robert Timmins, Adam Ryszard Kisiel, Qi Yang, Zuojia Wang, Q. H. Xu, C. Yang, E. P. Sichtermann, Muhammad Usman Ashraf, W. J. Llope, G. Eppley, S. Zhang, Roland Laszlo Pinter, H. J. Crawford, S. W. Wissink, D. Neff, Y. Zhang, Vipul Bairathi, Sergey Voloshin, Xinyue Ju, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, J. Putschke, Xiaofeng Zhu, Ying Liang, N. Kulathunga Mudiyanselage, J. Engelage, D. G. Underwood, Jan Vanek, Irakli Chakaberia, J. Pluta, M. Zyzak, C. Zhou, J. K. Adkins, N. Magdy, Zebo Tang, N. Chankova-Bunzarova, K. Jiang, W. Li, Skipper Kagamaster, Y. Wang, I. Vassiliev, A. Ogawa, G. Nigmatkulov, Rene Bellwied, W. Christie, R. Fatemi, J. R. Adams, Todd Kinghorn, Alexander Kiselev, D. Keane, Alexander Jentsch, Lukas Holub, Bedangadas Mohanty, Vitaly Okorokov, Z. Chang, C-Q. Li, J. Cheng, Dukhishyam Mallick, Y. F. Xu, J. M. Landgraf, Christina Markert, R. E. Tribble, O. Rusnakova, Jize Zhao, Subhash Singha, Andrey Vasiliev, Y. Li, I. Upsal, J. Rusnak, Z. Liu, Bernd Surrow, A. Attri, L. V. Nogach, T. Ullrich, Y. Lin, H. S. Matis, Peng Huo, D. Chen, L. K. Kosarzewski, C. Perkins, X.G. Li, N. Elsey, R. S. Longacre, W. W. Jacobs, G. Agakishiev, M. Strikhanov, W. Guryn, M. Cherney, Janet Elizabeth Seger, S. Lan, R. Lacey, F. Seck, J. Lauret, M. Kocan, I. M. Deppner, P. Federic, L. Ruan, Guannan Xie, P. Chaloupka, L. S. Pinsky, K. Yip, Lokesh Kumar, Ting Lin, Xuan Zhang, Anju Bhasin, F. G. Atetalla, M. L. Kabir, O. D. Tsai, Xiaoyu Liu, Z. Ye, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, Siwei Luo, D. Cebra, Hua Pei, S. K. Tripathy, H. S. Xu, A. J. Bassill, M. Posik, Z. Tu, J. Fedorisin, J. S. Wang, Jaroslav Adam, W. B. Schmidke, P. C. Weidenkaff, S. Trentalange, K. Kang, T. Niida, Hanna Paulina Zbroszczyk, C. A. Gagliardi, G. Igo, Maowu Nie, X. Huang, M. M. Mondal, Zhanwen Zhu, Y. H. Leung, M. Chevalier, A. Lebedev, L. Adamczyk, G. Odyniec, J. Sandweiss, Arabinda Behera, H. M. Spinka, Y. J. Sun, Jongmin Lee, Y. Hong, L. C. Bland, S. Fazio, Zongye Zhang, A. Kechechyan, W. Q. Shen, K. Gopal, Frank Jm Geurts, T. Galatyuk, E. G. Judd, H. Liu, K. Kauder, A. Taranenko, Madan M. Aggarwal, Fuqiang Wang, T. Nonaka, I. G. Bordyuzhin, Maria Stefaniak, Justin Ewigleben, A. Gibson, C. Zhong, M. H. Kelsey, S. Kabana, Somnath Choudhury, A. Pandav, R. Ma, K. Meehan, R. Reed, Jiangyong Jia, David Stewart, Sevil Salur, M. Sergeeva, J. Porter, D. N. Svirida, Peng Liu, Benjamin Schweid, T. J. Humanic, A. Hamed, T. Ljubicic, J. M. Butterworth, Isaac Mooney, J. C. Webb, Ivan Kisel, M. Tokarev, Y. Panebratsev, Saehanseul Oh, D. Grosnick, F. Liu, Miroslav Simko, Mariusz Przybycien, Y. Fisyak, D. Zhang, Susumu Sato, Z. J. Zhang, B. S. Page, Avishek Chatterjee, X. H. He, D. Isenhower, X. M. Sun, Z. Z. Xu, P. Sorensen, Hao Qiu, Joseph Kwasizur, D. P. Kikola, W. Solyst, S. Esumi, Nikita Smirnov, K. Nayak, B. Stringfellow, Md. Nasim, R. D. Majka, P. Szymanski, T. D. S. Stanislaus, Y. Yang, Lin Ma, J. L. Drachenberg, M. Shao, G. Van Buren, H. H. Wieman, Nilay Shah, H. Caines, A. Quintero, S. S. Shi, J. H. Thomas, Zhigang Xiao, T. Huang, F-H. Chang, J. M. Nelson, M. S. Daugherity, G. S. Averichev, Y. G. Ma, Yunpeng Liu, H. W. Ke, N. G. Minaev, L. Fulek, Chong Kim, N. Xu, Donald M. Anderson, H. G. Ritter, G. Wang, E. Hoffman, Rafal Sikora, P. Filip, G. D. Westfall, S. Das, E. C. Aschenauer, S. Margetis, X. Dong, N. Herrmann, Olga Evdokimov, Jay Roberts, Maria Zurek, K. Krueger, K. N. Barish, Yicheng Feng, P. V. Shanmuganathan, T. Tarnowsky, D. Kalinkin, A. A. Derevschikov, S. Heppelmann, B. J. Summa, J. C. Dunlop, L. Wen, Zubayer Ahammed, R. Kunnawalkam Elayavalli, S. Ramachandran, O. Eyser, Q. Y. Shou, R. Seto, R. Pak, H. Z. Huang, S. Vokal, Audrey Francisco, R. Witt, W. He, J. D. Brandenburg, S. Mioduszewski, Shangfeng Yang, J. H. Chen, C. J. Feng, Rajarshi Ray, L. Didenko, D. A. Morozov, T. Edmonds, Prithwish Tribedy, B. K. Srivastava, Shengli Huang, H. Sako, Jana Bielcikova, J. L. Romero, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, E. Finch, M. I. Nagy, Y. F. Wu, D. Kapukchyan, Wei Xie, J. D. Nam, A. Aparin, N. Schmitz, E. Shahaliev, and F. Videbæk
Subjects: Physics, Proton, 010308 nuclear & particles physics, Chatterjee, Collision system, Transport theory, 01 natural sciences, Nuclear physics, Correlation function (statistical mechanics), Pion, Angular correlation, 0103 physical sciences, 010306 general physics, Beam energy
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Aschenauer, EC; Ashraf, MU; Atetalla, FG; Attri, A; Averichev, GS; Bairathi, V; Barish, K; Bassill, AJ; Behera, A; Bellwied, R; Bhasin, A; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Brandenburg, JD; Brandin, AV; Butterworth, J; Caines, H; Sanchez, M Calderon de la Barca; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, BK; Chang, F-H; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chen, D; Chen, JH; Chen, X; Cheng, J; Cherney, M; Chevalier, M; Choudhury, S; Christie, W; Crawford, HJ; Csanad, M; Das, S; Daugherity, M; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; 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, CJ; Feng, Y; Filip, P; Finch, E; Fisyak, Y; Francisco, A; Fulek, L; Gagliardi, CA; Galatyuk, T; Geurts, F; Gibson, A; Gopal, K; Grosnick, D; Guryn, W; Hamad, AI | Abstract: The two-particle angular correlation functions, $R_2$, of pions, kaons, and protons in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV were measured by the STAR experiment at RHIC. These correlations were measured for both like-sign and unlike-sign charge combinations and versus the centrality. The correlations of pions and kaons show the expected near-side ({\it i.e.}, at small relative angles) peak resulting from short-range mechanisms. The amplitudes of these short-range correlations decrease with increasing beam energy. However, the proton correlation functions exhibit strong anticorrelations in the near-side region. This behavior is observed for the first time in an A+A collision system. The observed anticorrelation is $p_{T}$-independent and decreases with increasing beam energy and centrality. The experimental results are also compared to the Monte Carlo models UrQMD, Hijing, and AMPT.
Published: 2020

21. Correlation measurements between flow harmonics in Au+Au collisions at RHIC

Author: 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, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, F.-H. Chang, Z. 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, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, F. Geurts, A. Gibson, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, A. Hirsch, L. Holub, S. Horvat, X. Huang, B. 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. Kikoła, 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, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y. Li, W. Li, X. Li, C. Li, J. Lidrych, T. Lin, M.A. Lisa, Y. Liu, H. Liu, F. Liu, P. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, S. Luo, X. Luo, R. Ma, Y.G. Ma, G.L. Ma, L. 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, S. Mizuno, B. Mohanty, M.M. Mondal, I. Mooney, D.A. Morozov, M.K. Mustafa, Md. Nasim, T.K. Nayak, J.D. Negrete, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt, B.S. Page, R. Pak, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, J. Pluta, K. Poniatowska, 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.V. 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, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, W.Q. Shen, F. Shen, Z. Shi, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, 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.M. Sun, X. Sun, Y. Sun, B. Surrow, D.N. Svirida, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J. Thäder, 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, B.A. Trzeciak, O.D. Tsai, B. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, F. Wang, G. Wang, Y. Wang, J.C. Webb, G. 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, Q.H. Xu, Y.F. Xu, N. Xu, C. Yang, S. Yang, Q. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, J.B. Zhang, X.P. Zhang, S. Zhang, Z. Zhang, L. Zhang, J. Zhang, Y. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, Z. Zhu, X. Zhu, M. Zyzak, Adam, J., Adamczyk, L., Adams, J. R., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Ajitanand, N. N., Alekseev, I., Anderson, D. M., Aoyama, R., Aparin, A., Arkhipkin, D., Aschenauer, E. C., Ashraf, M. U., Atetalla, F., Attri, A., Averichev, G. S., Bai, X., Bairathi, V., Barish, K., Bassill, A. J., Behera, A., 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., Bryslawskyj, J., Bunzarov, I., Butterworth, J., Caines, H., Calderón de la Barca Sánchez, M., Campbell, J. M., Cebra, D., Chakaberia, I., Chaloupka, P., Chang, F. -H., Chang, Z., Chankova-Bunzarova, N., Chatterjee, A., Chattopadhyay, S., Chen, J. H., Chen, X., Cheng, J., Cherney, M., Christie, W., Contin, G., Crawford, H. J., Das, S., Dedovich, T. G., Deppner, I. M., Derevschikov, A. A., Didenko, L., Dilks, C., Dong, X., Drachenberg, J. L., 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., Federicova, P., Fedorisin, J., Feng, Z., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Fulek, L., Gagliardi, C. A., Geurts, F., Gibson, A., Grosnick, D., Gunarathne, D. S., Guo, Y., Gupta, A., Guryn, W., Hamad, A. I., Hamed, A., Harlenderova, A., Harris, J. W., He, L., Heppelmann, S., Herrmann, N., Hirsch, A., Holub, L., Horvat, S., Huang, X., Huang, B., Huang, S. L., Huang, T., Huang, H. Z., Humanic, T. J., Huo, P., Igo, G., Jacobs, W. W., Jentsch, A., Jia, J., Jiang, K., Jowzaee, S., Judd, E. G., Kabana, S., Kalinkin, D., Kang, K., Kapukchyan, D., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Kikoła, D. P., Kim, C., Kinghorn, T. A., Kisel, I., Kisiel, A., Kochenda, L., Kosarzewski, L. K., Kraishan, A. F., Kramarik, L., Krauth, L., Kravtsov, P., Krueger, K., Kulathunga, N., Kumar, S., Kumar, L., Kvapil, J., Kwasizur, J. H., Lacey, R., Landgraf, J. M., Landry, K. D., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Li, Y., Li, W., Li, X., Li, C., Lidrych, J., Lin, T., Lisa, M. A., Liu, Y., Liu, H., Liu, F., Liu, P., Ljubicic, T., Llope, W. J., Lomnitz, M., Longacre, R. S., Luo, S., Luo, X., Ma, R., Ma, Y. G., Ma, G. L., Ma, L., Magdy, N., Majka, R., Mallick, D., Margetis, S., Markert, C., Matis, H. S., Matonoha, O., Mayes, D., Mazer, J. A., Meehan, K., Mei, J. C., Minaev, N. G., Mioduszewski, S., Mishra, D., Mizuno, S., Mohanty, B., Mondal, M. M., Mooney, I., Morozov, D. A., Mustafa, M. K., Nasim, Md., Nayak, T. K., Negrete, J. D., Nelson, J. M., Nemes, D. B., Nie, M., Nigmatkulov, G., Niida, T., Nogach, L. V., Nonaka, T., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Okorokov, V. A., Olvitt, D., Page, B. S., Pak, R., Panebratsev, Y., Pawlik, B., Pei, H., Perkins, C., Pluta, J., Poniatowska, K., Porter, J., Posik, M., Pruthi, N. K., Przybycien, M., Putschke, J., Quintero, A., Radhakrishnan, S. K., Ramachandran, S., Ray, R. L., Reed, R., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Ruan, L., Rusnak, J., Rusnakova, O., Sahoo, N. R., Sahu, P. K., Salur, S., Sandweiss, J., Schambach, J., Schmah, A. M., Schmidke, W. B., Schmitz, N., Schweid, B. R., Seger, J., Sergeeva, M., Seto, R., Seyboth, P., Shah, N., Shahaliev, E., Shanmuganathan, P. V., Shao, M., Shen, W. Q., Shen, F., Shi, Z., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Sikora, R., Simko, M., Singha, S., Smirnov, D., Smirnov, N., Solyst, W., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stewart, D. J., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Sugiura, T., Sumbera, M., Summa, B., Sun, X. M., Sun, X., Sun, Y., Surrow, B., Svirida, D. N., Tang, A. H., Tang, Z., Taranenko, A., Tarnowsky, T., Thäder, J., Thomas, J. H., Timmins, A. R., Tlusty, D., Todoroki, T., Tokarev, M., Tomkiel, C. A., Trentalange, S., Tribble, R. E., Tribedy, P., Tripathy, S. K., Trzeciak, B. A., Tsai, O. D., Tu, B., Ullrich, T., Underwood, D. G., Upsal, I., Van Buren, G., Vanek, J., Vasiliev, A. N., Vassiliev, I., Videbæk, F., Vokal, S., Voloshin, S. A., Vossen, A., Wang, F., Wang, G., Wang, Y., Webb, J. C., Webb, G., Wen, L., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y., Xiao, Z. G., Xie, W., Xie, G., Xu, Z., Xu, J., Xu, Q. H., Xu, Y. F., Xu, N., Yang, C., Yang, S., Yang, Q., Yang, Y., Ye, Z., Yi, L., Yip, K., Yoo, I. -K., Yu, N., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, X. P., Zhang, S., Zhang, Z., Zhang, L., Zhang, J., Zhang, Y., Zhao, J., Zhong, C., Zhou, C., Zhou, L., Zhu, Z., Zhu, X., and Zyzak, M.
Subjects: Physics, Nuclear and High Energy Physics, Collectivity, Correlation, Shear viscosity, 010308 nuclear & particles physics, FOS: Physical sciences, 01 natural sciences, Measure (mathematics), High Energy Physics - Experiment, Nuclear physics, Nonlinear system, Third order, High Energy Physics - Experiment (hep-ex), Distribution (mathematics), Harmonics, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Anisotropy, Nuclear Experiment, Cumulant, Fourier series
Abstract: Flow harmonics ($v_n$) in the Fourier expansion of the azimuthal distribution of particles are widely used to quantify the anisotropy in particle emission in high-energy heavy-ion collisions. The symmetric cumulants, $SC(m,n)$, are used to measure the correlations between different orders of flow harmonics. These correlations are used to constrain the initial conditions and the transport properties of the medium in theoretical models. In this Letter, we present the first measurements of the four-particle symmetric cumulants in Au+Au collisions at $\sqrt{s_{NN}}$ = 39 and 200 GeV from data collected by the STAR experiment at RHIC. We observe that $v_{2}$ and $v_{3}$ are anti-correlated in all centrality intervals with similar correlation strengths from 39 GeV Au+Au to 2.76 TeV Pb+Pb (measured by the ALICE experiment). The $v_{2}$-$v_{4}$ correlation seems to be stronger at 39 GeV than at higher collision energies. The initial-stage anti-correlations between second and third order eccentricities are sufficient to describe the measured correlations between $v_{2}$ and $v_{3}$. The best description of $v_{2}$-$v_{4}$ correlations at $\sqrt{s_{NN}}$ = 200 GeV is obtained with inclusion of the system's nonlinear response to initial eccentricities accompanied by the viscous effect with $\eta/s$ $>$ 0.08. Theoretical calculations using different initial conditions, equations of state and viscous coefficients need to be further explored to extract $\eta/s$ of the medium created at RHIC., Comment: 4 figures, Accepted for publication in Physics Letter B, and final version
Published: 2018

22. First Observation of the Directed Flow of D0 and D0¯ in Au+Au Collisions at sNN=200 GeV

Author: A. V. Brandin, D. Tlusty, Peng Huo, C-Q. Li, Christina Markert, D. Smirnov, Vipul Bairathi, O. Rusnakova, H. S. Matis, A. K. Bhati, Yawen Wang, R. Witt, D. Keane, Nikolai Smirnov, W. Guryn, Z. Moravcova, B. J. Summa, R. Lacey, S. Mioduszewski, W. W. Jacobs, J. Engelage, H. Z. Huang, S. Vokal, F. Liu, D. A. Morozov, T. Edmonds, Mariusz Przybycien, S. Ramachandran, Q. H. Xu, O. Eyser, J. Lauret, J. L. Romero, Prithwish Tribedy, B. K. Srivastava, G. Nigmatkulov, Yunlan Ji, S. Fazio, Xuliang Chen, Y. Yang, J. Fedorisin, Lukas Kramarik, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, E. Finch, Arka Chatterjee, T. Tarnowsky, Z. Tu, Chong Kim, F. G. Atetalla, O. D. Tsai, J. M. Landgraf, N. Xu, Maria Stefaniak, Muhammad Usman Ashraf, B. Pawlik, J. C. Dunlop, L. Wen, P. Filip, R. D. Majka, H. G. Ritter, M. A. Szelezniak, Sergey Voloshin, J. L. Drachenberg, M. Calderon De La Barca Sanchez, A. I. Hamad, Y. Li, S. Singha, C. Jena, Zubayer Ahammed, B. Huang, Xinyue Ju, M. Strikhanov, Rafal Sikora, Sedigheh Jowzaee, Tetsuro Sugiura, Y. J. Sun, C. Dilks, G. D. Westfall, J. Schambach, N. K. Pruthi, W. Q. Shen, K. Gopal, D. G. Underwood, K. Jiang, Yong Wu, Q. Y. Shou, Anju Bhasin, G. Xie, A. J. Bassill, R. Pak, M. Csanad, G. Eppley, M. Sergeeva, T. J. Humanic, R. Esha, H. Liu, David Stewart, Nilay Shah, R. S. Longacre, J. Pluta, J. Sandweiss, Joseph Kwasizur, Olga Evdokimov, K. Kang, T. Niida, Xiaofeng Zhu, Ying Liang, I. Upsal, Abdel Nasser Tawfik, N. Chankova-Bunzarova, W. Li, Y. Fisyak, A. Lebedev, Skipper Kagamaster, D. Kapukchyan, A. Ogawa, Jay Roberts, Siwei Luo, B. S. Page, Maria Zurek, J. B. Singh, M. Nie, Sevil Salur, Y. Panebratsev, H. W. Ke, P. V. Shanmuganathan, J. W. Harris, Saehanseul Oh, D. Grosnick, M. Shao, G. Van Buren, S. S. Shi, Yicheng Feng, L. Ma, Rene Bellwied, R. E. Tribble, D. P. Kikola, A. Gibson, S. Zhang, B. Stringfellow, L. Zhang, Zhigang Xiao, P. Szymanski, T. Huang, D. Mallick, Z. Yang, G. Igo, J. Cheng, Jiangyong Jia, J. K. Adkins, Nasim, Yunpeng Liu, Wei Xie, Derek Anderson, T. G. Dedovich, A. Jentsch, K. Yip, S. K. Radhakrishnan, Zongye Zhang, L. Fulek, N. G. Minaev, I. G. Bordyuzhin, A. Aparin, Isaac Mooney, M. M. Mondal, L. C. Bland, G. Wang, Samuel Heppelmann, B. Tu, J. Butterworth, R. Fatemi, K. Nayak, L. He, Y. G. Ma, Jing-Han Chen, Todd Kinghorn, J. Bryslawskyj, Y. F. Xu, Z. Ye, J. A. Mazer, Tong Liu, Daniel Nemes, Jie Zhao, X. Huang, A. Kechechyan, S. Horvat, N. Schmitz, E. Shahaliev, Shize Yang, J. Rusnak, Chi Yang, N. Herrmann, K. Krueger, M. Kocan, M. Simko, L. Ruan, S. Siejka, Y. Hong, A. Lipiec, D. N. Svirida, W. Zha, A. H. Tang, Pengdong Wang, Benjamin Schweid, P. Seyboth, Pradip Kumar Sahu, T. Nonaka, J. R. Adams, Jan Vanek, Leszek Adamczyk, P. Federic, N. R. Sahoo, F. Seck, M. Posik, Arkadiy Taranenko, I. Bunzarov, O. Matonoha, M. Tokarev, N. Kulathunga Mudiyanselage, M. Cherney, Xiangming Sun, Arabinda Behera, H. M. Spinka, Lokesh Kumar, Hua Pei, P. Chaloupka, Ting Lin, Z. J. Xu, S. Trentalange, T. D. S. Stanislaus, J. H. Thomas, L. V. Nogach, Sumit R. Das, H. H. Wieman, Giacomo Contin, F-H. Chang, Q. Yang, K. Kauder, G. S. Averichev, Anthony Robert Timmins, Adam Ryszard Kisiel, Roland Laszlo Pinter, H. J. Crawford, Xiaofeng Luo, Guo-Liang Ma, Li Yi, P. Kravtsov, Fuwang Shen, Vitaly Okorokov, Bernd Surrow, N. Elsey, F. Videbæk, Z. Chang, W. B. Schmidke, Sukalyan Chattopadhyay, C. A. Gagliardi, Jaroslav Bielcik, Diana Pawlowska, O. V. Rogachevskiy, A. Quintero, R. Licenik, Xuan Zhang, R. Aoyama, Sujit Kumar Tripathy, Madan M. Aggarwal, Fuqiang Wang, Hanna Paulina Zbroszczyk, Zebo Tang, J. Putschke, Leo Clifford Greiner, D. K. Mishra, M. Kelsey, D. Kalinkin, C. Perkins, R. Kunnawalkam Elayavalli, R. Reed, I. Vassiliev, D. Zhang, Anik Gupta, Maksym Zyzak, A. Hamed, S. Esumi, Frank Jm Geurts, T. Galatyuk, C. Zhou, K. Meehan, J. C. Webb, B. K. Chan, Michal Sumbera, A. A. P. Suaide, Catherine Tomkiel, R. Seto, Justin Ewigleben, L. K. Kosarzewski, G. Odyniec, S. W. Wissink, J. M. Nelson, W. J. Llope, Y. Zhang, C. Zhong, J. Adam, K. N. Barish, A. Attri, Lukas Holub, Bedangadas Mohanty, P. Liu, Z. Liu, A. A. Derevschikov, Xiaoyu Liu, E. G. Judd, Jana Bielcikova, P. Sorensen, J. D. Brandenburg, L. Didenko, I. Chakaberia, W. Solyst, Jongmin Lee, R. L. Ray, R. Ma, T. Ljubicic, Niseem Magdy, H. Caines, M. Lomnitz, I. G. Alekseev, J. Porter, Ivan Kisel, M. A. Lisa, W. Christie, J. C. Mei, S. L. Huang, E. C. Aschenauer, S. Margetis, X. Dong, H. Xu, E. P. Sichtermann, T. Ullrich, G. Agakishiev, D. Cebra, Zhanwen Zhu, S. Kabana, Andrey Vasiliev, X.G. Li, Janet Elizabeth Seger, and I. M. Deppner
Subjects: Physics, Quantum chromodynamics, Meson, Star (game theory), General Physics and Astronomy, Absolute value, 01 natural sciences, Nuclear physics, Flow (mathematics), 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, STAR detector
Abstract: We report the first measurement of rapidity-odd directed flow (v_{1}) for D^{0} and D^{0}[over ¯] mesons at midrapidity (|y
Published: 2019

23. Energy dependence of J/ψ production in Au + Au collisions at sNN=39,62.4 and 200GeV

Author: L. Adamczyk, 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, A. Attri, G.S. Averichev, X. Bai, V. Bairathi, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, D. Brown, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, X. Chen, J.H. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. Deng, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.E. Draper, L.E. Dunkelberger, 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, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, J. Fujita, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, S. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, S. Horvat, B. Huang, H.Z. Huang, T. Huang, X. 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, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z. Khan, D.P. Kikoła, I. Kisel, A. Kisiel, L. Kochenda, M. Kocmanek, T. Kollegger, L.K. Kosarzewski, A.F. Kraishan, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y. Li, X. Li, W. Li, C. Li, J. Lidrych, T. Lin, M.A. Lisa, Y. Liu, H. Liu, F. Liu, P. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, S. Luo, X. Luo, G.L. Ma, L. Ma, Y.G. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, K. Meehan, J.C. Mei, Z.W. Miller, N.G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, Md. Nasim, T.K. Nayak, J.M. Nelson, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt, B.S. Page, R. Pak, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, P. Pile, J. Pluta, K. Poniatowska, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R.L. Ray, R. Reed, M.J. Rehbein, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.D. Roth, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, M. Saur, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, J. Seger, M. Sergeeva, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, A. Sharma, M.K. Sharma, W.Q. Shen, S.S. Shi, Z. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, N. Smirnov, D. Smirnov, W. Solyst, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Strikhanov, B. Stringfellow, T. Sugiura, M. Sumbera, B. Summa, X. Sun, Y. Sun, X.M. Sun, B. Surrow, D.N. Svirida, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. Thäder, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, A.N. Vasiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, W. Xie, G. Xie, J. Xu, N. Xu, Q.H. Xu, Y.F. Xu, Z. Xu, Y. Yang, Q. Yang, C. Yang, S. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, X.P. Zhang, J.B. Zhang, S. Zhang, J. Zhang, Y. Zhang, J. Zhao, C. Zhong, L. Zhou, C. Zhou, X. Zhu, Z. Zhu, and M. Zyzak
Subjects: Quark, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Screening effect, Nuclear Theory, Fermion, 01 natural sciences, Spectral line, Particle detector, Nuclear physics, 0103 physical sciences, Production (computer science), Nuclear Experiment, 010306 general physics, Recombination, STAR detector
Abstract: The inclusive J / ψ transverse momentum spectra and nuclear modification factors are reported at mid-rapidity ( | y | 1.0 ) in Au + Au collisions at s N N = 39, 62.4 and 200 GeV taken by the STAR experiment. A suppression of J / ψ production, with respect to the production in p + p scaled by the number of binary nucleon–nucleon collisions, is observed in central Au + Au collisions at these three energies. No significant energy dependence of nuclear modification factors is found within uncertainties. The measured nuclear modification factors can be described by model calculations that take into account both suppression of direct J / ψ production due to the color screening effect and J / ψ regeneration from recombination of uncorrelated charm–anticharm quark pairs.
Published: 2017

24. Observation of Excess J/ψ Yield at Very Low Transverse Momenta in Au+Au Collisions at sNN=200 GeV and U+U Collisions at sNN=193 GeV

Author: Shize Yang, Kejun Kang, P. Seyboth, F. Seck, Xiaofeng Luo, M. Posik, Arka Chatterjee, Jan Vanek, Leszek Adamczyk, I. K. Yoo, Vitaly Okorokov, H. M. Spinka, Guo-Liang Ma, Xiaoyu Liu, K. Yip, L. C. Bland, G. Eppley, Zongye Zhang, I. G. Bordyuzhin, Bernd Surrow, B. J. Summa, Anik Gupta, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, E. G. Judd, Li Yi, S. K. Radhakrishnan, L. Fulek, D. G. Underwood, Y. Li, S. Singha, N. Elsey, Frank Jm Geurts, T. Galatyuk, Q. H. Xu, N. Kulathunga Mudiyanselage, Chi Yang, Z. Chang, W. B. Schmidke, J. H. Thomas, J. C. Dunlop, L. Wen, J. Pluta, B.R. Schweid, J. Cheng, D. N. Svirida, N. G. Minaev, C. A. Gagliardi, Lukas Holub, Bedangadas Mohanty, P. Federic, Zubayer Ahammed, Muhammad Usman Ashraf, C. Zhou, K. Meehan, Chong Kim, H. G. Ritter, S. Ramachandran, N. Chankova-Bunzarova, Skipper Kagamaster, R. Lacey, Rafal Sikora, K. Kauder, P. Kravtsov, F-H. Chang, Q. Yang, Jaroslav Bielcik, Fuwang Shen, K. N. Barish, O. Eyser, J. A. Mazer, Jaroslav Adam, Sergey Voloshin, X. Huang, A. Kechechyan, Sumit R. Das, C. Zhong, E. C. Aschenauer, S. Margetis, Y. Panebratsev, Q. Y. Shou, L. Ma, O. V. Rogachevskiy, A. Quintero, Joseph Kwasizur, Roli Esha, Rene Bellwied, Saehanseul Oh, D. Grosnick, D. Arkhipkin, A. Hamed, Pradip Kumar Sahu, T. Nonaka, Xinyue Ju, J. Rusnak, L. V. Nogach, Nihar Sahoo, X. Dong, Peter Q. Liu, Daniel Nemes, Jie Zhao, S. Horvat, G. Wang, G. S. Averichev, W. Christie, R. Pak, M. Kocan, J. L. Drachenberg, Olga Evdokimov, M. Zyzak, M. Shao, G. Van Buren, Nasim, S. S. Shi, Zebo Tang, L. Ruan, K. Jiang, Nilay Shah, B. K. Chan, Michal Sumbera, A. A. P. Suaide, J. Porter, Catherine Tomkiel, Tetsuro Sugiura, I. Upsal, Robert Licenik, F. Videbæk, Sujit Kumar Tripathy, B. Huang, R. E. Tribble, Jay Roberts, Jana Bielcikova, M. Tokarev, H. Z. Huang, Yanjun Wu, S. Vokal, T. Todoroki, Y. J. Sun, E. P. Sichtermann, Anthony Robert Timmins, Adam Ryszard Kisiel, N. Herrmann, T. G. Dedovich, Jorn Henning Putschke, Sukalyan Chattopadhyay, Maria Zurek, Madan M. Aggarwal, A. Lipiec, Fuqiang Wang, C. Dilks, D. K. Mishra, Samuel Heppelmann, A. V. Brandin, B. Tu, S. Siejka, S. Fazio, Xuliang Chen, M. Kelsey, M. Csanad, Roland Laszlo Pinter, H. J. Crawford, W. Zha, G. Agakishiev, A. A. Derevschikov, L. Zhang, H. W. Ke, J. K. Adkins, Arabinda Behera, J. W. Harris, Yicheng Feng, D. Kalinkin, R. S. Longacre, F. G. Atetalla, K. Nayak, O. D. Tsai, S. W. Wissink, Y. Zhang, T. D. S. Stanislaus, Xiaofeng Zhu, M. Sergeeva, Ying Liang, JSingh, R. Fatemi, L. He, Vipul Bairathi, J. L. Romero, I. Vassiliev, Lukas Kramarik, Y. Hong, J. H. Chen, Todd Kinghorn, K. Krueger, ShinIchi Esumi, D. Cebra, D. Zhang, E. Finch, Zhigang Xiao, T. Huang, Andrey Vasiliev, A. Ogawa, Siwei Luo, W. Q. Shen, C. Perkins, J. Bryslawskyj, P. V. Shanmuganathan, D. Mallick, H. H. Wieman, X.G. Li, C-Q. Li, T. Edmonds, R. Witt, T. Ullrich, W. Guryn, S. Mioduszewski, P. Chaloupka, I. Kisel, P. Sorensen, A. H. Tang, H. Liu, Pengdong Wang, Christina Markert, Ting Lin, Z. J. Xu, David Stewart, Yunpeng Liu, Derek Anderson, Zhanwen Zhu, G. Igo, Prithwish Tribedy, B. K. Srivastava, D. Smirnov, O. Rusnakova, H. S. Matis, Shengli Huang, M. Cherney, J. Fedorisin, Sevil Salur, M. M. Mondal, I. Bunzarov, S. Trentalange, O. Matonoha, J. D. Brandenburg, S. Kabana, Y. Wang, Y. Fisyak, Lokesh Kumar, Hua Pei, H. S. Xu, K. Oh, Z. Moravcova, W. W. Jacobs, J. Butterworth, J. Lauret, Janet Elizabeth Seger, J. Engelage, Justin Ewigleben, G. Odyniec, Isaac Mooney, J. Jia, N. Xu, P. Filip, Jongmin Lee, G. Nigmatkulov, T. J. Humanic, Z. Ye, A. K. Bhati, D. Keane, M. Nie, Nikolai Smirnov, B. Pawlik, Xiangming Sun, Y. F. Xu, R. L. Ray, Zhao Liu, A. Gibson, R. Ma, R. Lednicky, L. Kochenda, T. Tarnowsky, Yinina Ma, S. Zhang, L. Didenko, I. Chakaberia, P. Szymanski, I. M. Deppner, D. Kapukchyan, T. Ljubicic, G. D. Westfall, Xuan Zhang, J. M. Landgraf, Niseem Magdy, H. Caines, M. Lomnitz, Dmitry Morozov, M. Strikhanov, Anju Bhasin, Wei Li, G. Xie, R. Aoyama, Wei Xie, A. Aparin, Hanna Paulina Zbroszczyk, N. K. Pruthi, A. J. Bassill, N. Schmitz, E. Shahaliev, T. Niida, A. Lebedev, J. C. Webb, J. Sandweiss, J. R. Adams, R. Kunnawalkam Elayavalli, R. Reed, W. Solyst, L. K. Kosarzewski, R. Seto, J. M. Nelson, W. J. Llope, I. G. Alekseev, Alexander Jentsch, M. A. Lisa, J. C. Mei, A. Attri, P. Huo, B. S. Page, D. P. Kikola, B. Stringfellow, F. Liu, Miroslav Simko, Mariusz Przybycien, Y. Yang, R. D. Majka, J. Schambach, and A. Taranenko
Subjects: Physics, Hadron, General Physics and Astronomy, Modification factor, Plasma, 01 natural sciences, Nuclear physics, Transverse plane, 0103 physical sciences, Quark–gluon plasma, Transverse momentum, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We report on the first measurements of J/ψ production at very low transverse momentum (p_{T}
Published: 2019

25. Polarization of Λ ( Λ¯ ) Hyperons along the Beam Direction in Au+Au Collisions at sNN=200 GeV

Author: D. G. Underwood, J. K. Adkins, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, R. Fatemi, L. He, Todd Kinghorn, P. Sorensen, Nasim, J. Porter, K. Krueger, S. Fazio, Xuliang Chen, Z. Yang, J. Cheng, J. D. Brandenburg, D. Kalinkin, G. Wang, T. J. Humanic, Jorn Henning Putschke, A. V. Brandin, I. G. Alekseev, M. A. Lisa, J. C. Mei, Takafumi Niida, Vipul Bairathi, I. Kisel, Maria Stefaniak, D. Zhang, L. Didenko, I. Chakaberia, F. Liu, Miroslav Simko, M. Cherney, Siwei Luo, Lokesh Kumar, F. Videbæk, Hua Pei, Yawen Wang, J. L. Drachenberg, Mariusz Przybycien, D. Tlusty, G. Eppley, Y. Yang, N. Herrmann, P. Chaloupka, Ting Lin, Z. J. Xu, Olga Evdokimov, Zhigang Xiao, S. Siejka, T. Huang, B. S. Page, L. V. Nogach, Jaroslav Bielcik, Yunpeng Liu, Derek Anderson, D. P. Kikola, Arka Chatterjee, B. K. Chan, Michal Sumbera, R. D. Majka, W. Guryn, I. Upsal, Tong Liu, S. Trentalange, A. A. P. Suaide, P. Seyboth, B. Stringfellow, B. J. Summa, Sukalyan Chattopadhyay, J. Schambach, M. Tokarev, J. Pluta, N. Chankova-Bunzarova, Jay Roberts, W. Li, Catherine Tomkiel, J. H. Thomas, Anju Bhasin, G. Xie, J. C. Webb, A. J. Bassill, K. Kang, G. Agakishiev, Jongmin Lee, N. Xu, P. Filip, Skipper Kagamaster, Joseph Kwasizur, M. Shao, G. Van Buren, D. Cebra, R. L. Ray, A. Lebedev, Y. Li, S. Singha, Maria Zurek, Jan Vanek, Leszek Adamczyk, R. Seto, L. Ma, Rene Bellwied, H. W. Ke, K. Kauder, Arabinda Behera, R. Ma, F-H. Chang, Q. Yang, D. Arkhipkin, A. Hamed, L. Zhang, Q. H. Xu, O. V. Rogachevskiy, A. Quintero, M. Zyzak, ShinIchi Esumi, R. E. Tribble, Zhanwen Zhu, S. Kabana, J. Fedorisin, G. D. Westfall, T. D. S. Stanislaus, H. H. Wieman, P. Federic, Zebo Tang, Zhaoping Liu, Diana Pawlowska, Wei Xie, S. W. Wissink, Y. Zhang, M. M. Mondal, Robert Licenik, Anthony Robert Timmins, Adam Ryszard Kisiel, S. S. Shi, G. S. Averichev, Sujit Kumar Tripathy, Yicheng Feng, J. Engelage, W. Christie, Isaac Mooney, J. Jia, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Vitaly Okorokov, Roland Laszlo Pinter, H. J. Crawford, T. Ljubicic, Justin Ewigleben, G. Odyniec, C. Zhong, Andrey Vasiliev, G. Nigmatkulov, Bernd Surrow, Yunlan Ji, Shize Yang, B.R. Schweid, Xiaofeng Luo, X.G. Li, M. Kelsey, Guo-Liang Ma, J. C. Dunlop, L. Wen, B. Pawlik, Janet Elizabeth Seger, A. Aparin, Yinina Ma, H. Caines, I. M. Deppner, S. Ramachandran, M. Csanad, N. Elsey, K. N. Barish, O. Eyser, A. Gibson, Daniel Nemes, Jie Zhao, S. Horvat, F. Seck, S. Zhang, J. M. Landgraf, Li Yi, M. Lomnitz, Xiangming Sun, Jaroslav Adam, C. Jena, Zubayer Ahammed, B. Huang, I. K. Yoo, M. Posik, Z. Chang, Jing-Han Chen, M. Strikhanov, H. M. Spinka, L. K. Kosarzewski, J. Rusnak, X. Huang, C. Perkins, A. Kechechyan, W. B. Schmidke, Muhammad Usman Ashraf, E. P. Sichtermann, J. M. Nelson, M. Kocan, Xiaoyu Liu, C. A. Gagliardi, Xiaofeng Zhu, Ying Liang, P. Kravtsov, Fuwang Shen, W. J. Llope, L. Ruan, A. Lipiec, Pradip Kumar Sahu, R. S. Longacre, T. Nonaka, N. G. Minaev, W. Zha, Y. Fisyak, Sergey Voloshin, P. V. Shanmuganathan, J. Sandweiss, J. R. Adams, Alexander Jentsch, W. Solyst, K. Oh, A. A. Derevschikov, T. Todoroki, A. Ogawa, Q. Y. Shou, E. G. Judd, D. Mallick, Anik Gupta, T. Ullrich, J. W. Harris, P. Szymanski, R. Pak, Frank Jm Geurts, G. Igo, Xinyue Ju, N. Schmitz, A. Attri, E. Shahaliev, T. Galatyuk, H. Z. Huang, S. Vokal, Lukas Holub, Bedangadas Mohanty, Arkadiy Taranenko, P. Huo, J. Butterworth, Z. Ye, Tetsuro Sugiura, Y. J. Sun, N. Magdy Abdelwahab Abdelrahman, C. Dilks, C. Zhou, J. Bryslawskyj, Xuan Zhang, Zongye Zhang, R. Witt, K. Meehan, H. S. Xu, Y. F. Xu, K. Jiang, I. G. Bordyuzhin, N.R. Sahoo, R. Aoyama, A. H. Tang, S. Mioduszewski, T. G. Dedovich, Pengdong Wang, Hanna Paulina Zbroszczyk, Jasvinder A. Singh, Yanjun Wu, I. Bunzarov, O. Matonoha, Prithwish Tribedy, B. K. Srivastava, Shengli Huang, D. A. Morozov, E. C. Aschenauer, R. Kunnawalkam Elayavalli, R. Reed, S. Margetis, N. K. Pruthi, N. Kulathunga Mudiyanselage, J. A. Mazer, X. Dong, M. Sergeeva, Sumit R. Das, C-Q. Li, Christina Markert, D. Smirnov, O. Rusnakova, T. Edmonds, H. S. Matis, Y. Hong, D. Kapukchyan, Z. Moravcova, W. W. Jacobs, J. Lauret, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, T. Tarnowsky, Z. Tu, Jana Bielcikova, A. K. Bhati, D. Keane, J. L. Romero, I. Vassiliev, Lukas Kramarik, E. Finch, Chong Kim, H. G. Ritter, Nikolai Smirnov, Rafal Sikora, F. G. Atetalla, M. Nie, R. Esha, O. D. Tsai, S. K. Radhakrishnan, L. Fulek, W. Q. Shen, K. Gopal, L. C. Bland, H. Liu, David Stewart, Chi Yang, D. N. Svirida, Sevil Salur, Y. Panebratsev, Saehanseul Oh, D. Grosnick, Samuel Heppelmann, B. Tu, K. Yip, K. Nayak, R. Lacey, Peter Q. Liu, and Nilay Shah
Subjects: Physics, Elliptic flow, Hyperon, General Physics and Astronomy, Vorticity, Polarization (waves), 01 natural sciences, Spectral line, Azimuth, Interferometry, 0103 physical sciences, Quadrupole, Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: The Λ (Λ[over ¯]) hyperon polarization along the beam direction has been measured in Au+Au collisions at sqrt[s_{NN}]=200 GeV, for the first time in heavy-ion collisions. The polarization dependence on the hyperons' emission angle relative to the elliptic flow plane exhibits a second harmonic sine modulation, indicating a quadrupole pattern of the vorticity component along the beam direction, expected due to elliptic flow. The polarization is found to increase in more peripheral collisions, and shows no strong transverse momentum (p_{T}) dependence at p_{T} greater than 1 GeV/c. The magnitude of the signal is about 5 times smaller than those predicted by hydrodynamic and multiphase transport models; the observed phase of the emission angle dependence is also opposite to these model predictions. In contrast, the kinematic vorticity calculations in the blast-wave model tuned to reproduce particle spectra, elliptic flow, and the azimuthal dependence of the Gaussian source radii measured with the Hanbury Brown-Twiss intensity interferometry technique reproduce well the modulation phase measured in the data and capture the centrality and transverse momentum dependence of the polarization signal.
Published: 2019

26. Measurements of the transverse-momentum-dependent cross sections of J/ψ production at mid-rapidity in proton+proton collisions at s=510 and 500 GeV with the STAR detector

Author: Jorn Henning Putschke, Zebo Tang, A. V. Brandin, F. G. Atetalla, O. D. Tsai, G. Eppley, Vitaly Okorokov, T. J. Humanic, M. Kelsey, Bernd Surrow, Joseph Kwasizur, J. Pluta, E. P. Sichtermann, N. Elsey, J. L. Drachenberg, Y. Wang, Y. Fisyak, Roli Esha, Vipul Bairathi, C. Perkins, N. Chankova-Bunzarova, W. Li, K. Oh, Z. Chang, M. Shao, G. Van Buren, Skipper Kagamaster, W. Q. Shen, W. B. Schmidke, JSingh, C. A. Gagliardi, Olga Evdokimov, Madan M. Aggarwal, Daniel Nemes, Jie Zhao, Fuqiang Wang, S. Horvat, D. K. Mishra, D. Kalinkin, D. Zhang, S. Esumi, Chong Kim, S. S. Shi, I. Upsal, Y. Hong, P. Szymanski, M. Simko, Jay Roberts, J. Engelage, L. Ma, Rene Bellwied, R. E. Tribble, H. Liu, David Stewart, N. Xu, P. Filip, Jaroslav Bielcik, H. G. Ritter, B. K. Chan, Michal Sumbera, A. A. P. Suaide, Catherine Tomkiel, Q. H. Xu, O. V. Rogachevskiy, A. Quintero, Rafal Sikora, S. Fazio, Xuliang Chen, Maria Stefaniak, K. Yip, F. Liu, Mariusz Przybycien, Y. Yang, R. D. Majka, Xiangming Sun, Jana Bielcikova, P. Sorensen, B. Pawlik, Sevil Salur, I. Vassiliev, Anik Gupta, G. D. Westfall, J. Schambach, Anju Bhasin, G. Xie, A. J. Bassill, S. W. Wissink, Y. Zhang, J. D. Brandenburg, B. J. Summa, A. Gibson, S. Zhang, Jaroslav Adam, L. C. Bland, T. Niida, A. Lebedev, Frank Jm Geurts, T. Galatyuk, C. Zhou, L. Didenko, I. Chakaberia, S. Ramachandran, A. Taranenko, X. Huang, A. Kechechyan, Pradip Kumar Sahu, K. Meehan, D. P. Kiko la, J. Rusnak, N. K. Pruthi, A. K. Bhati, D. Keane, Nikolai Smirnov, O. Eyser, Nilay Shah, B. Huang, I. K. Yoo, Chi Yang, M. Kocan, W. Christie, L. Ruan, Maksym Zyzak, Xiaoyu Liu, R. S. Longacre, M. Tokarev, H. Z. Huang, S. Vokal, D. N. Svirida, Andrey Vasiliev, T. Todoroki, J. C. Webb, P. V. Shanmuganathan, M. M. Mondal, E. G. Judd, X.G. Li, P. Chaloupka, Ting Lin, D. Mallick, Y. Panebratsev, Janet Elizabeth Seger, Saehanseul Oh, D. Grosnick, I. M. Deppner, R. Seto, Xiaofeng Luo, Guo-Liang Ma, Z. J. Xu, S. Trentalange, T. D. S. Stanislaus, Lukas Holub, Bedangadas Mohanty, H. H. Wieman, G. Igo, Zhigang Xiao, T. Huang, Yunpeng Liu, Derek Anderson, Pu Wang, J. H. Chen, Li Yi, N. G. Minaev, Benjamin Schweid, K. N. Barish, Samuel Heppelmann, B. Tu, D. Arkhipkin, A. Hamed, D. A. Morozov, T. Edmonds, P. Kravtsov, Fuwang Shen, J. Butterworth, Z. Ye, Y. F. Xu, T. Nonaka, A. A. Derevschikov, F. Videbæk, S. K. Radhakrishnan, L. Fulek, Sukalyan Chattopadhyay, L. Zhang, Diana Pawlowska, Xuan Zhang, R. Aoyama, Hanna Paulina Zbroszczyk, T. Ullrich, J. Porter, Ivan Kisel, M. Nie, A. Lipiec, W. Zha, R. Kunnawalkam Elayavalli, R. Reed, Siwei Luo, J. W. Harris, J. Bryslawskyj, N. Kulathunga Mudiyanselage, K. Kauder, Nihar Sahoo, Zongye Zhang, I. G. Bordyuzhin, B. S. Page, B. Stringfellow, Maria Zurek, H. W. Ke, Yicheng Feng, G. Nigmatkulov, J. M. Landgraf, Arka Chatterjee, P. Seyboth, Jan Vanek, Leszek Adamczyk, D. Tlusty, Peng Huo, G. Agakishiev, Jongmin Lee, R. L. Ray, Jiangyong Jia, A. H. Tang, I. Bunzarov, Robert Licenik, Anthony Robert Timmins, Adam Ryszard Kisiel, J. A. Mazer, R. Ma, O. Matonoha, M. Strikhanov, P. Federic, Y. Li, S. Singha, D. Cebra, Isaac Mooney, Roland Laszlo Pinter, H. J. Crawford, Kejun Kang, J. K. Adkins, L. V. Nogach, Tetsuro Sugiura, K. Nayak, Sumit R. Das, Y. J. Sun, W. Guryn, R. Lacey, C. Dilks, R. Fatemi, L. He, J. Sandweiss, T. Ljubicic, Zhanwen Zhu, D. Kapukchyan, S. Kabana, Yinina Ma, Todd Kinghorn, S. L. Huang, K. Krueger, M. Csanad, Shize Yang, Nasim, J. Fedorisin, Niseem Magdy, H. Caines, Muhammad Usman Ashraf, M. Lomnitz, Xiaofeng Zhu, Ying Liang, G. Wang, R. Witt, Sergey Voloshin, S. Mioduszewski, F. Seck, A. I. Hamad, Sedigheh Jowzaee, M. Cherney, Lokesh Kumar, L. K. Kosarzewski, A. Ogawa, J. L. Romero, Xinyue Ju, Zhen Liu, J. M. Nelson, Hua Pei, S. K. Tripathy, M. Posik, Arabinda Behera, H. M. Spinka, D. G. Underwood, W. J. Llope, C-Q. Li, T. G. Dedovich, I. G. Alekseev, Tong Liu, K. Jiang, Yanjun Wu, Lukas Kramarik, Christina Markert, D. Smirnov, C. Zhong, E. C. Aschenauer, O. Rusnakova, S. Margetis, Prithwish Tribedy, B. K. Srivastava, N. Herrmann, H. S. Matis, M. A. Lisa, J. C. Mei, E. Finch, Alexander Jentsch, M. Sánchez Calderón de la Barca, Z. Moravcova, W. W. Jacobs, J. H. Thomas, X. Dong, S. Siejka, J. Lauret, J. Cheng, A. Attri, M. Sergeeva, P. Liu, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, T. Tarnowsky, H. Xu, F-H. Chang, Q. Yang, Wei Xie, Justin Ewigleben, G. Odyniec, A. Aparin, G. S. Averichev, N. Schmitz, J. C. Dunlop, L. Wen, E. Shahaliev, Zubayer Ahammed, Q. Y. Shou, R. Pak, J. R. Adams, and W. Solyst
Subjects: Physics, Nuclear physics, Range (particle radiation), Meson production, Proton, Transverse momentum, High Energy Physics::Experiment, Rapidity, Production (computer science), Nuclear Experiment, Relativistic Heavy Ion Collider, STAR detector
Abstract: We present measurements of the differential cross sections of inclusive J/ψ meson production as a function of transverse momentum (pTJ/ψ) using the μ+μ- and e+e- decay channels in proton+proton collisions at center-of-mass energies of 510 and 500 GeV, respectively, recorded by the STAR detector at the Relativistic Heavy Ion Collider. The measurement from the μ+μ- channel is for 0
Published: 2019

27. Longitudinal double-spin asymmetry for inclusive jet and dijet production in pp collisions at s=510 GeV

Author: Yunlan Ji, I. Vassiliev, Madan M. Aggarwal, Mate Csanad, Joel Anthony Mazer, Z. Yang, G. Wang, Qi Yang, M. Sergeeva, Jaroslav Adam, B. S. Page, Avishek Chatterjee, A. V. Brandin, D. P. Kikola, B. Stringfellow, Fuqiang Wang, D. K. Mishra, J. D. Brandenburg, H. Z. Huang, S. Vokal, Q. H. Xu, Tetsuro Sugiura, Y. F. Xu, Lei Zhang, Y. J. Sun, C. Dilks, M. Tokarev, F. Videbæk, L. Didenko, N. Kulathunga Mudiyanselage, Siwei Luo, S. Kabana, L. C. Bland, B. K. Chan, Michal Sumbera, K. N. Barish, D. Tlusty, Peng Huo, P. Sorensen, P. V. Shanmuganathan, Joseph Kwasizur, Vipul Bairathi, Sukalyan Chattopadhyay, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Catherine Tomkiel, S. W. Wissink, Y. Li, Alexandre Alarcon Do Passo Suaide, Y. Zhang, J. Bryslawskyj, T. Tarnowsky, Niladribihari Sahoo, Tong Liu, Irakli Chakaberia, B. Huang, D. N. Svirida, L. V. Nogach, S. Fazio, Zongye Zhang, M. Shao, G. Van Buren, D. Zhang, S. Esumi, J. R. Adams, A. A. Derevschikov, Shangfeng Yang, S. S. Shi, I. G. Bordyuzhin, N. Herrmann, W. Guryn, B. Pawlik, Wei Xie, Yu-Gang Ma, P. Szymanski, J. H. Chen, T. D. S. Stanislaus, R. Lacey, Jiangyong Jia, J. B. Singh, A. Aparin, Jongmin Lee, Zebo Tang, S. Siejka, R. Kunnawalkam Elayavalli, P. Federic, J. M. Nelson, Dukhishyam Mallick, N. Magdy, Z. Moravcova, M. H. Kelsey, Chitrasen Jena, R. L. Ray, R. Ma, Guannan Xie, Isaac Mooney, H. H. Wieman, Jaroslav Bielcik, D. A. Morozov, T. Edmonds, Lukas Holub, Bedangadas Mohanty, N. Schmitz, J. Fedorisin, T. G. Dedovich, Xuan Zhang, X. C. Chen, S. Zhang, E. Shahaliev, J. Engelage, R. Seto, R. S. Longacre, M. Lomnitz, G. Nigmatkulov, C. Yang, N. K. Pruthi, T. Ljubicic, J. W. Harris, Hanna Paulina Zbroszczyk, D. Kalinkin, Z. Liu, Diana Pawlowska, Robert Licenik, Jana Bielcikova, Muhammad Usman Ashraf, J. M. Landgraf, Y. Fisyak, O. V. Rogachevskiy, Y. Hong, Anthony Robert Timmins, Adam Ryszard Kisiel, H. Caines, J. L. Romero, Lukas Kramarik, Sooraj Krishnan Radhakrishnan, R. Witt, S. Heppelmann, D. G. Underwood, G. Eppley, H. W. Ke, L. Fulek, A. Quintero, C. Perkins, Lin Ma, Roland Laszlo Pinter, G. Igo, K. Oh, M. Strikhanov, E. Finch, Sergey Voloshin, Xinyue Ju, J. Pluta, H. J. Crawford, J. K. Adkins, X. G. Luo, A. H. Tang, Pengdong Wang, B. J. Summa, M. Zyzak, R. Fatemi, L. He, Todd Kinghorn, K. Kauder, A. Taranenko, E. P. Sichtermann, G. Odyniec, J. Sandweiss, N. Chankova-Bunzarova, W. Li, Skipper Kagamaster, S. Mioduszewski, H. Liu, P. Seyboth, K. Jiang, Y. Wang, I. Bunzarov, I. K. Yoo, J. Cheng, Chong Kim, Y. F. Wu, I. Upsal, Jan Vanek, Y. Yang, O. Matonoha, Xiaoyu Liu, H. G. Ritter, Frank Jm Geurts, S. Ramachandran, O. Eyser, Rene Bellwied, Maria Stefaniak, T. Galatyuk, D. Kapukchyan, Rafal Sikora, M. Cherney, Nilay Shah, T. Ullrich, Vitaly Okorokov, Lokesh Kumar, Hua Pei, R. Reed, M. M. Mondal, Roli Esha, E. G. Judd, R. E. Tribble, K. Meehan, Bernd Surrow, S. K. Tripathy, Prithwish Tribedy, B. K. Srivastava, K. Yip, Daniel Nemes, Jie Zhao, S. Horvat, Benjamin Schweid, T. J. Humanic, H. S. Xu, Z. Ye, D. Arkhipkin, Guo-Liang Ma, N. Xu, P. Filip, N. Elsey, J. Putschke, Shengli Huang, Z. Chang, A. Hamed, X. M. Sun, Li Yi, Xiaofeng Zhu, Ying Liang, A. Lipiec, W. Zha, G. D. Westfall, Maowu Nie, X. Huang, W. B. Schmidke, W. J. Llope, S. Das, J. C. Dunlop, L. Wen, P. Kravtsov, Fuwang Shen, A. Gupta, C. A. Gagliardi, A. Ogawa, Dmitry Smirnov, A. Kechechyan, C. Zhou, F. Seck, Zubayer Ahammed, Pradip Kumar Sahu, T. Nonaka, C-Q. Li, M. Posik, Arabinda Behera, Alexander Jentsch, Christina Markert, O. Rusnakova, H. M. Spinka, H. S. Matis, L. K. Kosarzewski, Zhigang Xiao, T. Huang, Q. Y. Shou, W. W. Jacobs, J. Lauret, A. Attri, Yunpeng Liu, Derek Anderson, R. Pak, J. Porter, N. G. Minaev, Olga Evdokimov, Yevheniia Khyzhniak, R. Lednicky, L. Kochenda, Z. Tu, Ivan Kisel, Jay Roberts, P. Chaloupka, J. Rusnak, Ting Lin, M. Kocan, Maria Zurek, L. Ruan, K. Krueger, Yicheng Feng, S. Trentalange, J. H. Thomas, T. Todoroki, F-H. Chang, W. Christie, G. S. Averichev, Subhash Singha, Andrey Vasiliev, X.G. Li, Janet Elizabeth Seger, Justin Ewigleben, A. Gibson, C. Zhong, I. M. Deppner, J. M. Butterworth, J. C. Webb, F. Liu, Miroslav Simko, Mariusz Przybycien, Md. Nasim, R. D. Majka, J. L. Drachenberg, W. Solyst, J. Schambach, Anju Bhasin, A. J. Bassill, Peng Liu, K. Kang, T. Niida, A. Lebedev, L. Adamczyk, Y. Panebratsev, Saehanseul Oh, D. Grosnick, R. Aoyama, Z. Z. Xu, B. Tu, Nikita Smirnov, K. Nayak, F. G. Atetalla, O. D. Tsai, I. G. Alekseev, W. Q. Shen, K. Gopal, M. A. Lisa, J. C. Mei, David Stewart, Sevil Salur, A. K. Bhati, D. Keane, G. Agakishiev, D. Cebra, Zhanwen Zhu, E. C. Aschenauer, S. Margetis, and X. Dong
Subjects: Physics, 010308 nuclear & particles physics, media_common.quotation_subject, Jet (particle physics), Polarization (waves), 01 natural sciences, Asymmetry, Helicity, Gluon, Nuclear physics, Momentum, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, media_common, Spin-½
Abstract: We report the first measurement of the inclusive jet and the dijet longitudinal double-spin asymmetries, ALL, at midrapidity in polarized pp collisions at a center-of-mass energy s=510 GeV. The inclusive jet ALL measurement is sensitive to the gluon helicity distribution down to a gluon momentum fraction of x≈0.015, while the dijet measurements, separated into four jet-pair topologies, provide constraints on the x dependence of the gluon polarization. Both results are consistent with previous measurements made at s=200 GeV in the overlapping kinematic region, x>0.05, and show good agreement with predictions from recent next-to-leading order global analyses.
Published: 2019

28. Polarization of Λ (Λ[over ¯]) Hyperons along the Beam Direction in Au+Au Collisions at sqrt[s_{NN}]=200 GeV

Author: J, Adam, L, Adamczyk, J R, Adams, J K, Adkins, G, Agakishiev, M M, Aggarwal, Z, Ahammed, I, Alekseev, D M, Anderson, R, Aoyama, A, Aparin, D, Arkhipkin, E C, Aschenauer, M U, Ashraf, F, Atetalla, A, Attri, G S, Averichev, 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 V, Brandin, J, Bryslawskyj, I, Bunzarov, J, Butterworth, H, Caines, M, Calderón de la Barca Sánchez, D, Cebra, I, Chakaberia, P, Chaloupka, B K, Chan, F-H, Chang, Z, Chang, N, Chankova-Bunzarova, A, Chatterjee, S, Chattopadhyay, J H, Chen, X, Chen, J, Cheng, M, Cherney, W, Christie, H J, Crawford, M, Csanád, S, Das, T G, Dedovich, I M, Deppner, A A, Derevschikov, L, Didenko, C, Dilks, X, Dong, J L, Drachenberg, J C, Dunlop, T, Edmonds, N, Elsey, J, Engelage, G, Eppley, R, Esha, S, Esumi, O, Evdokimov, J, Ewigleben, O, Eyser, R, Fatemi, S, Fazio, P, Federic, J, Fedorisin, Y, Feng, P, Filip, E, Finch, Y, Fisyak, L, Fulek, C A, Gagliardi, T, Galatyuk, F, Geurts, A, Gibson, K, Gopal, D, Grosnick, A, Gupta, W, Guryn, A I, Hamad, A, Hamed, J W, Harris, L, He, S, Heppelmann, N, Herrmann, L, Holub, Y, Hong, S, Horvat, B, Huang, H Z, Huang, S L, Huang, T, Huang, X, Huang, T J, Humanic, P, Huo, G, Igo, W W, Jacobs, C, Jena, A, Jentsch, Y, Ji, J, Jia, K, Jiang, S, Jowzaee, X, Ju, E G, Judd, S, Kabana, S, Kagamaster, D, Kalinkin, K, Kang, D, Kapukchyan, K, Kauder, H W, Ke, D, Keane, A, Kechechyan, M, Kelsey, Y V, Khyzhniak, D P, Kikoła, C, Kim, T A, Kinghorn, I, Kisel, A, Kisiel, M, Kocan, L, Kochenda, L K, Kosarzewski, L, Kramarik, P, Kravtsov, K, Krueger, N, Kulathunga Mudiyanselage, L, Kumar, R, Kunnawalkam Elayavalli, J H, Kwasizur, R, Lacey, J M, Landgraf, J, Lauret, A, Lebedev, R, Lednicky, J H, Lee, C, Li, W, Li, X, Li, Y, Li, Y, Liang, R, Licenik, T, Lin, A, Lipiec, M A, Lisa, F, Liu, H, Liu, P, Liu, T, Liu, X, Liu, Y, Liu, Z, Liu, T, Ljubicic, W J, Llope, M, Lomnitz, R S, Longacre, S, Luo, X, Luo, G L, Ma, L, Ma, R, Ma, Y G, Ma, N, Magdy Abdelwahab Abdelrahman, R, Majka, D, Mallick, S, Margetis, C, Markert, H S, Matis, O, Matonoha, J A, Mazer, K, Meehan, J C, Mei, N G, Minaev, S, Mioduszewski, D, Mishra, B, Mohanty, M M, Mondal, I, Mooney, Z, Moravcova, D A, Morozov, Md, Nasim, K, Nayak, J M, Nelson, D B, Nemes, M, Nie, G, Nigmatkulov, T, Niida, L V, Nogach, T, Nonaka, G, Odyniec, A, Ogawa, K, Oh, S, Oh, V A, Okorokov, B S, Page, R, Pak, Y, Panebratsev, B, Pawlik, D, Pawlowska, H, Pei, C, Perkins, R L, Pintér, 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 V, Rogachevskiy, J L, Romero, L, Ruan, J, Rusnak, O, Rusnakova, N R, Sahoo, P K, Sahu, S, Salur, J, Sandweiss, J, Schambach, W B, Schmidke, N, Schmitz, B R, Schweid, F, Seck, J, Seger, M, Sergeeva, R, Seto, P, Seyboth, N, Shah, E, Shahaliev, P V, Shanmuganathan, M, Shao, F, Shen, W Q, Shen, S S, Shi, Q Y, Shou, E P, Sichtermann, S, Siejka, R, Sikora, M, Simko, J, Singh, S, Singha, D, Smirnov, N, Smirnov, W, Solyst, P, Sorensen, H M, Spinka, B, Srivastava, T D S, Stanislaus, M, Stefaniak, D J, Stewart, M, Strikhanov, B, Stringfellow, A A P, Suaide, T, Sugiura, M, Sumbera, B, Summa, X M, Sun, Y, Sun, B, Surrow, D N, Svirida, P, Szymanski, A H, Tang, Z, 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, Z, Tu, T, Ullrich, D G, Underwood, I, Upsal, G, Van Buren, J, Vanek, A N, Vasiliev, I, Vassiliev, F, Videbæk, S, Vokal, S A, Voloshin, F, Wang, G, Wang, P, Wang, Y, Wang, J C, Webb, L, Wen, G D, Westfall, H, Wieman, S W, Wissink, R, Witt, Y, Wu, Z G, Xiao, G, Xie, W, Xie, H, Xu, N, Xu, Q H, Xu, Y F, Xu, Z, Xu, C, Yang, Q, Yang, S, Yang, Y, Yang, Z, Yang, Z, Ye, L, Yi, K, Yip, I-K, Yoo, H, Zbroszczyk, W, Zha, D, Zhang, L, Zhang, S, Zhang, X P, Zhang, Y, Zhang, Z, Zhang, J, Zhao, C, Zhong, C, Zhou, X, Zhu, Z, Zhu, M, Zurek, and M, Zyzak
Abstract: The Λ (Λ[over ¯]) hyperon polarization along the beam direction has been measured in Au+Au collisions at sqrt[s_{NN}]=200 GeV, for the first time in heavy-ion collisions. The polarization dependence on the hyperons' emission angle relative to the elliptic flow plane exhibits a second harmonic sine modulation, indicating a quadrupole pattern of the vorticity component along the beam direction, expected due to elliptic flow. The polarization is found to increase in more peripheral collisions, and shows no strong transverse momentum (p_{T}) dependence at p_{T} greater than 1 GeV/c. The magnitude of the signal is about 5 times smaller than those predicted by hydrodynamic and multiphase transport models; the observed phase of the emission angle dependence is also opposite to these model predictions. In contrast, the kinematic vorticity calculations in the blast-wave model tuned to reproduce particle spectra, elliptic flow, and the azimuthal dependence of the Gaussian source radii measured with the Hanbury Brown-Twiss intensity interferometry technique reproduce well the modulation phase measured in the data and capture the centrality and transverse momentum dependence of the polarization signal.
Published: 2019

29. First Observation of the Directed Flow of D^{0} and D^{0}[over ¯] in Au+Au Collisions at sqrt[s_{NN}]=200 GeV

Author: J, Adam, L, Adamczyk, J R, Adams, J K, Adkins, G, Agakishiev, M M, Aggarwal, Z, Ahammed, I, Alekseev, D M, Anderson, R, Aoyama, A, Aparin, E C, Aschenauer, M U, Ashraf, F G, Atetalla, A, Attri, G S, Averichev, 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 V, Brandin, J, Bryslawskyj, I, Bunzarov, J, Butterworth, H, Caines, M, Calderón de la Barca Sánchez, D, Cebra, I, Chakaberia, P, Chaloupka, B K, Chan, F-H, Chang, Z, Chang, N, Chankova-Bunzarova, A, Chatterjee, S, Chattopadhyay, J H, Chen, X, Chen, J, Cheng, M, Cherney, W, Christie, G, Contin, H J, Crawford, M, Csanád, S, Das, T G, Dedovich, I M, Deppner, A A, Derevschikov, L, Didenko, C, Dilks, X, Dong, J L, Drachenberg, J C, Dunlop, T, Edmonds, N, Elsey, J, Engelage, G, Eppley, R, Esha, S, Esumi, O, Evdokimov, J, Ewigleben, O, Eyser, R, Fatemi, S, Fazio, P, Federic, J, Fedorisin, Y, Feng, P, Filip, E, Finch, Y, Fisyak, L, Fulek, C A, Gagliardi, T, Galatyuk, F, Geurts, A, Gibson, K, Gopal, L, Greiner, D, Grosnick, A, Gupta, W, Guryn, A I, Hamad, A, Hamed, J W, Harris, L, He, S, Heppelmann, N, Herrmann, L, Holub, Y, Hong, S, Horvat, B, Huang, H Z, Huang, S L, Huang, T, Huang, X, Huang, T J, Humanic, P, Huo, G, Igo, W W, Jacobs, C, Jena, A, Jentsch, Y, Ji, J, Jia, K, Jiang, S, Jowzaee, X, Ju, E G, Judd, S, Kabana, S, Kagamaster, D, Kalinkin, K, Kang, D, Kapukchyan, K, Kauder, H W, Ke, D, Keane, A, Kechechyan, M, Kelsey, Y V, Khyzhniak, D P, Kikoła, C, Kim, T A, Kinghorn, I, Kisel, A, Kisiel, M, Kocan, L, Kochenda, L K, Kosarzewski, L, Kramarik, P, Kravtsov, K, Krueger, N, Kulathunga Mudiyanselage, L, Kumar, R, Kunnawalkam Elayavalli, J H, Kwasizur, R, Lacey, J M, Landgraf, J, Lauret, A, Lebedev, R, Lednicky, J H, Lee, C, Li, W, Li, X, Li, Y, Li, Y, Liang, R, Licenik, T, Lin, A, Lipiec, M A, Lisa, F, Liu, H, Liu, P, Liu, T, Liu, X, Liu, Y, Liu, Z, Liu, T, Ljubicic, W J, Llope, M, Lomnitz, R S, Longacre, S, Luo, X, Luo, G L, Ma, L, Ma, R, Ma, Y G, Ma, N, Magdy, R, Majka, D, Mallick, S, Margetis, C, Markert, H S, Matis, O, Matonoha, J A, Mazer, K, Meehan, J C, Mei, N G, Minaev, S, Mioduszewski, D, Mishra, B, Mohanty, M M, Mondal, I, Mooney, Z, Moravcova, D A, Morozov, Md, Nasim, K, Nayak, J M, Nelson, D B, Nemes, M, Nie, G, Nigmatkulov, T, Niida, L V, Nogach, T, Nonaka, G, Odyniec, A, Ogawa, S, Oh, V A, Okorokov, B S, Page, R, Pak, Y, Panebratsev, B, Pawlik, D, Pawlowska, H, Pei, C, Perkins, R L, Pintér, 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 V, Rogachevskiy, J L, Romero, L, Ruan, J, Rusnak, O, Rusnakova, N R, Sahoo, P K, Sahu, S, Salur, J, Sandweiss, J, Schambach, W B, Schmidke, N, Schmitz, B R, Schweid, F, Seck, J, Seger, M, Sergeeva, R, Seto, P, Seyboth, N, Shah, E, Shahaliev, P V, Shanmuganathan, M, Shao, F, Shen, W Q, Shen, S S, Shi, Q Y, Shou, E P, Sichtermann, S, Siejka, R, Sikora, M, Simko, J, Singh, S, Singha, D, Smirnov, N, Smirnov, W, Solyst, P, Sorensen, H M, Spinka, B, Srivastava, T D S, Stanislaus, M, Stefaniak, D J, Stewart, M, Strikhanov, B, Stringfellow, A A P, Suaide, T, Sugiura, M, Sumbera, B, Summa, X M, Sun, Y, Sun, B, Surrow, D N, Svirida, M A, Szelezniak, P, Szymanski, A H, Tang, Z, Tang, A, Taranenko, T, Tarnowsky, A, Tawfik, J H, Thomas, A R, Timmins, D, Tlusty, M, Tokarev, C A, Tomkiel, S, Trentalange, R E, Tribble, P, Tribedy, S K, Tripathy, O D, Tsai, B, Tu, Z, Tu, T, Ullrich, D G, Underwood, I, Upsal, G, Van Buren, J, Vanek, A N, Vasiliev, I, Vassiliev, F, Videbæk, S, Vokal, S A, Voloshin, F, Wang, G, Wang, P, Wang, Y, Wang, J C, Webb, L, Wen, G D, Westfall, H, Wieman, S W, Wissink, R, Witt, Y, Wu, Z G, Xiao, G, Xie, W, Xie, H, Xu, N, Xu, Q H, Xu, Y F, Xu, Z, Xu, C, Yang, Q, Yang, S, Yang, Y, Yang, Z, Yang, Z, Ye, L, Yi, K, Yip, H, Zbroszczyk, W, Zha, D, Zhang, L, Zhang, S, Zhang, X P, Zhang, Y, Zhang, Z, Zhang, J, Zhao, C, Zhong, C, Zhou, X, Zhu, Z, Zhu, M, Zurek, and M, Zyzak
Abstract: We report the first measurement of rapidity-odd directed flow (v_{1}) for D^{0} and D^{0}[over ¯] mesons at midrapidity (|y|0.8) in Au+Au collisions at sqrt[s_{NN}]=200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. In 10-80% Au+Au collisions, the slope of the v_{1} rapidity dependence (dv_{1}/dy), averaged over D^{0} and D^{0}[over ¯] mesons, is -0.080±0.017(stat)±0.016(syst) for transverse momentum p_{T} above 1.5 GeV/c. The absolute value of D^{0} meson dv_{1}/dy is about 25 times larger than that for charged kaons, with 3.4σ significance. These data give a unique insight into the initial tilt of the produced matter, and offer constraints on the geometric and transport parameters of the hot QCD medium created in relativistic heavy-ion collisions.
Published: 2019

30. Observation of Excess J/ψ Yield at Very Low Transverse Momenta in Au+Au Collisions at sqrt[s_{NN}]=200 GeV and U+U Collisions at sqrt[s_{NN}]=193 GeV

Author: J, Adam, L, Adamczyk, J R, Adams, J K, Adkins, G, Agakishiev, M M, Aggarwal, Z, Ahammed, I, Alekseev, D M, Anderson, R, Aoyama, A, Aparin, D, Arkhipkin, E C, Aschenauer, M U, Ashraf, F, Atetalla, A, Attri, G S, Averichev, 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 V, Brandin, J, Bryslawskyj, I, Bunzarov, J, Butterworth, H, Caines, M Calderón de la Barca, Sánchez, D, Cebra, I, Chakaberia, P, Chaloupka, B K, Chan, F-H, Chang, Z, Chang, N, Chankova-Bunzarova, A, Chatterjee, S, Chattopadhyay, J H, Chen, X, Chen, J, Cheng, M, Cherney, W, Christie, H J, Crawford, M, Csanad, S, Das, T G, Dedovich, I M, Deppner, A A, Derevschikov, L, Didenko, C, Dilks, X, Dong, J L, Drachenberg, J C, Dunlop, T, Edmonds, N, Elsey, J, Engelage, G, Eppley, R, Esha, S, Esumi, O, Evdokimov, J, Ewigleben, O, Eyser, R, Fatemi, S, Fazio, P, Federic, J, Fedorisin, Y, Feng, P, Filip, E, Finch, Y, Fisyak, L, Fulek, C A, Gagliardi, T, Galatyuk, F, Geurts, A, Gibson, D, Grosnick, A, Gupta, W, Guryn, A I, Hamad, A, Hamed, J W, Harris, L, He, S, Heppelmann, N, Herrmann, L, Holub, Y, Hong, S, Horvat, B, Huang, H Z, Huang, S L, Huang, T, Huang, X, Huang, T J, Humanic, P, Huo, G, Igo, W W, Jacobs, A, Jentsch, J, Jia, K, Jiang, S, Jowzaee, X, Ju, E G, Judd, S, Kabana, S, Kagamaster, D, Kalinkin, K, Kang, D, Kapukchyan, K, Kauder, H W, Ke, D, Keane, A, Kechechyan, M, Kelsey, D P, Kikoła, C, Kim, T A, Kinghorn, I, Kisel, A, Kisiel, M, Kocan, L, Kochenda, L K, Kosarzewski, L, Kramarik, P, Kravtsov, K, Krueger, N Kulathunga, Mudiyanselage, L, Kumar, R Kunnawalkam, Elayavalli, J H, Kwasizur, R, Lacey, J M, Landgraf, J, Lauret, A, Lebedev, R, Lednicky, J H, Lee, C, Li, W, Li, X, Li, Y, Li, Y, Liang, R, Licenik, T, Lin, A, Lipiec, M A, Lisa, F, Liu, H, Liu, P, Liu, X, Liu, Y, Liu, Z, Liu, T, Ljubicic, W J, Llope, M, Lomnitz, R S, Longacre, S, Luo, X, Luo, G L, Ma, L, Ma, R, Ma, Y G, Ma, N, Magdy, R, Majka, D, Mallick, S, Margetis, C, Markert, H S, Matis, O, Matonoha, J A, Mazer, K, Meehan, J C, Mei, N G, Minaev, S, Mioduszewski, D, Mishra, B, Mohanty, M M, Mondal, I, Mooney, Z, Moravcova, D A, Morozov, Md, Nasim, K, Nayak, J M, Nelson, D B, Nemes, M, Nie, G, Nigmatkulov, T, Niida, L V, Nogach, T, Nonaka, G, Odyniec, A, Ogawa, K, Oh, S, Oh, V A, Okorokov, B S, Page, R, Pak, Y, Panebratsev, B, Pawlik, H, Pei, C, Perkins, R L, Pinter, 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 V, Rogachevskiy, J L, Romero, L, Ruan, J, Rusnak, O, Rusnakova, N R, Sahoo, P K, Sahu, S, Salur, J, Sandweiss, J, Schambach, W B, Schmidke, N, Schmitz, B R, Schweid, F, Seck, J, Seger, M, Sergeeva, R, Seto, P, Seyboth, N, Shah, E, Shahaliev, P V, Shanmuganathan, M, Shao, F, Shen, W Q, Shen, S S, Shi, Q Y, Shou, E P, Sichtermann, S, Siejka, R, Sikora, M, Simko, JSingh, 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 M, Sun, Y, Sun, B, Surrow, D N, Svirida, P, Szymanski, A H, Tang, Z, Tang, A, Taranenko, T, Tarnowsky, J H, Thomas, A R, Timmins, 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, Videbæk, S, Vokal, S A, Voloshin, F, Wang, G, Wang, P, Wang, Y, Wang, J C, Webb, L, Wen, G D, Westfall, H, Wieman, S W, Wissink, R, Witt, Y, Wu, Z G, Xiao, G, Xie, W, Xie, H, Xu, N, Xu, Q H, Xu, Y F, Xu, Z, Xu, C, Yang, Q, Yang, S, Yang, Y, Yang, Z, Ye, L, Yi, K, Yip, I-K, Yoo, H, Zbroszczyk, W, Zha, D, Zhang, L, Zhang, S, Zhang, X P, Zhang, Y, Zhang, Z, Zhang, J, Zhao, C, Zhong, C, Zhou, X, Zhu, Z, Zhu, M K, Zurek, and M, Zyzak
Abstract: We report on the first measurements of J/ψ production at very low transverse momentum (p_{T}0.2 GeV/c) in hadronic Au+Au collisions at sqrt[s_{NN}]=200 GeV and U+U collisions at sqrt[s_{NN}]=193 GeV. Remarkably, the inferred nuclear modification factor of J/ψ at midrapidity in Au+Au (U+U) collisions reaches about 24 (52) for p_{T}0.05 GeV/c in the 60%-80% collision centrality class. This noteworthy enhancement cannot be explained by hadronic production accompanied by cold and hot medium effects. In addition, the dN/dt distribution of J/ψ for the very low p_{T} range is presented for the first time. The distribution is consistent with that expected from the Au nucleus and shows a hint of interference. Comparison of the measurements to theoretical calculations of coherent production shows that the excess yield can be described reasonably well and reveals a partial disruption of coherent production in semicentral collisions, perhaps due to the violent hadronic interactions. Incorporating theoretical calculations, the results strongly suggest that the dramatic enhancement of J/ψ yield observed at extremely low p_{T} originates from coherent photon-nucleus interactions. In particular, coherently produced J/ψ's in violent hadronic collisions may provide a novel probe of the quark-gluon plasma.
Published: 2019

31. Centrality and transverse momentum dependence of D0 -meson production at mid-rapidity in Au + Au collisions at sNN=200 GeV

Author: M. Calderon De La Barca Sanchez, A. I. Hamad, Chong Kim, Sedigheh Jowzaee, J. L. Romero, Madan M. Aggarwal, M. A. Szelezniak, H. G. Ritter, Xiaofeng Luo, Fuqiang Wang, Benjamin Schweid, J. L. Drachenberg, D. K. Mishra, Guo-Liang Ma, Rafal Sikora, Tetsuro Sugiura, D. Arkhipkin, Nasim, A. Hamed, Olga Evdokimov, J. Rusnak, A. F. Kraishan, Lukas Kramarik, E. Finch, M. Kocan, D. Kalinkin, Li Yi, Jorn Henning Putschke, Y. J. Sun, I. Upsal, L. Ruan, A. V. Brandin, C. Dilks, J. Porter, A. Vossen, Y. Wang, Y. Fisyak, Jay Roberts, A. S. Hirsch, P. Kravtsov, D. Zhang, Fuwang Shen, A. M. Schmah, W. Christie, Ivan Kisel, Maksym Zyzak, Maria Zurek, S. Esumi, Vipul Bairathi, K. Oh, H. W. Ke, T. Todoroki, J. C. Webb, L. C. Bland, Giacomo Contin, K. Kauder, Chi Yang, D. N. Svirida, L. Zhang, Justin Ewigleben, G. Odyniec, C. Zhong, Wei Xie, Nihar Sahoo, Andrey Vasiliev, R. Seto, A. Aparin, G. Eppley, I. Vassiliev, J. C. Dunlop, L. Wen, S. L. Huang, T. J. Humanic, D. L. Olvitt, Anik Gupta, Jaroslav Bielcik, S. K. Radhakrishnan, L. Fulek, J. Pluta, R. S. Longacre, Robert Licenik, P. Szymanski, X.G. Li, E. P. Sichtermann, Anthony Robert Timmins, Adam Ryszard Kisiel, N. Chankova-Bunzarova, W. Li, Frank Jm Geurts, Zubayer Ahammed, N. Schmitz, K. N. Barish, Skipper Kagamaster, J. Engelage, Shize Yang, Janet Elizabeth Seger, Roland Laszlo Pinter, H. J. Crawford, Jaroslav Adam, L. Ma, O. V. Rogachevskiy, A. Quintero, J. Y. Zhang, T. Galatyuk, B. S. Page, Maowu Nie, E. Shahaliev, N. Xu, Rene Bellwied, G. Nigmatkulov, D. P. Kikola, X. Huang, A. Kechechyan, R. E. Tribble, B. Stringfellow, I. M. Deppner, J. K. Adkins, J. R. Adams, P. V. Shanmuganathan, F. Seck, Q. Y. Shou, J. M. Landgraf, Pradip Kumar Sahu, T. Nonaka, P. Chaloupka, W. Solyst, C. Zhou, K. Meehan, M. Posik, R. Fatemi, L. He, Todd Kinghorn, F. Videbæk, P. Filip, K. Krueger, Ting Lin, R. Pak, Z. J. Xu, Arabinda Behera, H. M. Spinka, D. Mallick, Xiangming Sun, Vitaly Okorokov, M. Strikhanov, Sukalyan Chattopadhyay, David Brown, G. Wang, J. Kvapil, A. A. Derevschikov, H. Qiu, Bernd Surrow, S. Trentalange, R. Witt, J. W. Harris, J. Sandweiss, M. Tokarev, G. D. Westfall, Zebo Tang, J. H. Thomas, N. Elsey, Nilay Shah, G. Igo, S. Mioduszewski, N. K. Pruthi, M. Cherney, I. G. Alekseev, D. Kapukchyan, Z. Chang, Lokesh Kumar, Hua Pei, M. A. Lisa, J. C. Mei, W. B. Schmidke, Jana Bielcikova, Prithwish Tribedy, B. K. Srivastava, S. K. Tripathy, Leo Clifford Greiner, M. Kelsey, F-H. Chang, Q. Yang, C. A. Gagliardi, F. Liu, K. Yip, P. Sorensen, T. D. S. Stanislaus, T. Ullrich, H. H. Wieman, C. Perkins, L. Krauth, J. D. Brandenburg, N. Herrmann, S. Siejka, Mariusz Przybycien, G. S. Averichev, Y. Yang, J. Bryslawskyj, B. Pawlik, A. Gibson, S. Zhang, J. Butterworth, Z. Ye, L. Didenko, I. Chakaberia, P. Seyboth, Y. F. Xu, J. Lidrych, Jan Vanek, Leszek Adamczyk, P. Federic, Q. H. Xu, A. H. Tang, Pengdong Wang, S. Fazio, Xuliang Chen, B. Huang, R. D. Majka, E. C. Aschenauer, I. Bunzarov, S. Margetis, O. Matonoha, X. Dong, G. Agakishiev, D. S. Gunarathne, J. Schambach, Zhigang Xiao, T. Huang, D. Cebra, Zhanwen Zhu, H. Xu, Anju Bhasin, S. Kabana, G. Xie, A. J. Bassill, Yunpeng Liu, Derek Anderson, Jongmin Lee, R. L. Ray, K. Kang, T. Niida, R. Ma, A. Lebedev, N. G. Minaev, T. Ljubicic, Niseem Magdy, H. Caines, M. Lomnitz, Siwei Luo, Joseph Kwasizur, Jiangyong Jia, M. Shao, G. Van Buren, Isaac Mooney, S. S. Shi, Muhammad Usman Ashraf, Sergey Voloshin, Xinyue Ju, K. Jiang, Jasvinder A. Singh, Yanjun Wu, M. Sergeeva, Arkadiy Taranenko, D. G. Underwood, J. Cheng, Arka Chatterjee, Peng Huo, A. Harlenderova, M. K. Mustafa, W. Guryn, R. Lacey, Y. Li, S. Singha, Alexandre Alarcon Do Passo Suaide, J. Fedorisin, M. M. Mondal, Roli Esha, Daniel Nemes, Jie Zhao, S. Horvat, M. Simko, A. Lipiec, W. Zha, Lukas Holub, Bedangadas Mohanty, C-Q. Li, Christina Markert, D. Smirnov, O. Rusnakova, H. S. Matis, Z. Moravcova, W. W. Jacobs, J. Lauret, R. Lednicky, L. Kochenda, T. Tarnowsky, M. Csanad, Xiaofeng Zhu, Ying Liang, A. Ogawa, T. G. Dedovich, I. K. Yoo, Zongye Zhang, Y. Guo, I. G. Bordyuzhin, Xiaoyu Liu, J. A. Mazer, N. Kulathunga Mudiyanselage, L. V. Nogach, Sumit R. Das, C. E. Flores, E. G. Judd, Y. Hong, Zhaoping Liu, B. K. Chan, Michal Sumbera, Catherine Tomkiel, S. W. Wissink, Y. Zhang, H. Z. Huang, S. Vokal, F. G. Atetalla, O. D. Tsai, J. H. Chen, D. A. Morozov, T. Edmonds, W. Q. Shen, B. J. Summa, H. Liu, David Stewart, Sevil Salur, Y. Panebratsev, Saehanseul Oh, D. Grosnick, S. Ramachandran, O. Eyser, Samuel Heppelmann, B. Tu, K. Nayak, A. K. Bhati, D. Keane, Nikolai Smirnov, L. G. Efimov, Yu-Gang Ma, L. K. Kosarzewski, J. M. Nelson, W. J. Llope, Alexander Jentsch, A. Attri, P. Liu, Xuan Zhang, R. Aoyama, Hanna Paulina Zbroszczyk, R. Kunnawalkam Elayavalli, and R. Reed
Subjects: Physics, Quark, Particle physics, Strange quark, Meson, 010308 nuclear & particles physics, Hadron, Kinetic energy, 01 natural sciences, Spectral line, Charm quark, 0103 physical sciences, Rapidity, 010306 general physics
Abstract: 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; Brown, D; 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; Contin, G; Crawford, HJ; Csanad, M; Das, S; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Dunlop, JC; Edmonds, T; Efimov, LG; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Filip, P; Finch, E; Fisyak, Y; Flores, CE; Fulek, L; Gagliardi, CA; Galatyuk, T; Geurts, F; Gibson, A | Abstract: We report a new measurement of D0-meson production at mid-rapidity (|y|l1) in Au + Au collisions at sNN=200GeV utilizing the heavy flavor tracker, a high resolution silicon detector at the STAR experiment. Invariant yields of D0 mesons with transverse momentum pT9GeV/c are reported in various centrality bins (0-10%, 10-20%, 20-40%, 40-60%, and 60-80%). Blast-wave thermal models are used to fit the D0-meson pT spectra to study D0 hadron kinetic freeze-out properties. The average radial flow velocity extracted from the fit is considerably smaller than that of light hadrons (π,K, and p), but comparable to that of hadrons containing multiple strange quarks (φ,Ξ-), indicating that D0 mesons kinetically decouple from the system earlier than light hadrons. The calculated D0 nuclear modification factors reaffirm that charm quarks suffer a large amount of energy loss in the medium, similar to those of light quarks for pTg4GeV/c in central 0-10% Au + Au collisions. At low pT, the nuclear modification factors show a characteristic structure qualitatively consistent with the expectation from model predictions that charm quarks gain sizable collective motion during the medium evolution. The improved measurements are expected to offer new constraints to model calculations and help gain further insights into the hot and dense medium created in these collisions.
Published: 2019

32. Measurement of the longitudinal spin asymmetries for weak boson production in proton-proton collisions at s=510 GeV

Author: Y. K. Sun, Bernd Surrow, I. G. Alekseev, M. A. Lisa, J. C. Mei, N. Elsey, G. Eppley, Long Ma, Peifeng Liu, J. Pluta, C. A. Gagliardi, Guannan Xie, Yanfang Liu, R. Lednicky, J. Bryslawskyj, N. Chankova-Bunzarova, Skipper Kagamaster, Subhash Singha, Justin Ewigleben, J. Fedorisin, T. Nonaka, Christina Markert, A. Gibson, G. Odyniec, Mate Csanad, Anju Bhasin, O. Rusnakova, Nasim, L. C. Bland, T. Ljubicic, H. S. Matis, Hanna Paulina Zbroszczyk, B. Pawlik, L. K. Kosarzewski, Chris Perkins, Joel Anthony Mazer, Rene Bellwied, A. J. Bassill, Liang He, Alexandre Alarcon Do Passo Suaide, Lukas Holub, Bedangadas Mohanty, Isaac Upsal, J. Lauret, H. Caines, A. Quintero, A. Aparin, Jaroslav Bielcik, J. Rusnak, Z. Chang, J. M. Butterworth, S. Stanislaus, L. Kochenda, Yaping Wang, J. C. Webb, Spiros Margetis, T. Niida, A. F. Kraishan, M. Kocan, Jie Zhang, Saskia Mioduszewski, Shusu Shi, Xiaofeng Luo, F. Seck, Guo-Liang Ma, E. Shahaliev, Dingwei Zhang, A. Lebedev, W. Solyst, John Nelson, O. V. Rogachevskiy, Vitalii Okorokov, A. H. Tang, Feng-Han Chang, Muhammad Usman Ashraf, Neha Shah, L. Ruan, Pavol Federic, Alexander Vasiliev, Li Yi, M. Posik, Tetsuro Sugiura, J. L. Drachenberg, Olga Evdokimov, M. Tokarev, Yang Yang, Matthew Kelsey, Gary Westfall, Arghya Chatterjee, Xiangming Sun, Kevin Adkins, B. Huang, C. Zhong, E. C. Aschenauer, Norbert Herrmann, Chi Yang, P. Kravtsov, G. Agakishiev, D. S. Gunarathne, Kun Jiang, J. Putschke, C. Dilks, S. W. Wissink, Wen-Qing Shen, Jaroslav Adam, Kejun Kang, S. Das, S. Horvat, Jana Bielcikova, Madan M. Aggarwal, Fuqiang Wang, S. Kabana, Z. Moravcova, Jeong-Hun Lee, O. D. Tsai, A. Ogawa, D. Cebra, Nalinda Kulathunga Mudiyanselage, Xinyue Ju, S. Trentalange, Zhen Liu, L. V. Nogach, T. Todoroki, Jay Roberts, Zhenyu Ye, D. K. Mishra, X. Dong, Maria Zurek, ShinIchi Esumi, Benjamin Schweid, Manuel Calderon De La Barca Sanchez, P. Szymanski, Zhanwen Zhu, Gang Wang, Robert E. Tribble, J. H. Thomas, Yuliang Sun, T. J. Humanic, Jiangyong Jia, D. Arkhipkin, A. Hamed, N. K. Pruthi, D. N. Svirida, S. Fazio, K. Krueger, I. G. Bordyuzhin, Joseph Kwasizur, J. Engelage, D. L. Olvitt, Miroslav Simko, Ron Longacre, Mariusz Przybycien, Paul Sorensen, G. Nigmatkulov, Cheng Li, D. Kapukchyan, I. K. Yoo, Subhasis Chattopadhyay, Yicheng Feng, A. Vossen, H. H. Wieman, Xiaolong Chen, Arabinda Behera, Xiaoyu Liu, J. W. Harris, R. Witt, Yu-Gang Ma, Roli Esha, E. P. Sichtermann, W. J. Llope, G. S. Averichev, Shuai Yang, J. M. Landgraf, I. Vassiliev, J. C. Dunlop, L. Wen, Daniel Nemes, Jie Zhao, Zhongbin Xu, Jing-Han Chen, Qiye Shou, Dmitry Morozov, J. Schambach, Alexander Jentsch, Ivan Kisel, Zubayer Ahammed, M. Strikhanov, Norbert Schmitz, F. Videbæk, M. M. Mondal, C. E. Flores, E. G. Judd, D. P. Kikola, A. Attri, Wei Li, Z. Ye, Yuanjing Li, Dmitri Smirnov, B. Stringfellow, Chensheng Zhou, A. Lipiec, Lukas Kramarik, Maowu Nie, L. Zhang, P. Huo, Sooraj Krishnan Radhakrishnan, E. Finch, Chong Kim, Niseem Magdy Abdelwahab Abdelrahman, M. Sergeeva, Kishora Nayak, W. Zha, Zhigang Xiao, Jagbir Singh, T. Huang, J. Porter, Nu Xu, Raghav Kunnawalkam Elayavalli, J. Sandweiss, A. Kechechyan, Pradip Kumar Sahu, B. K. Chan, Michal Sumbera, Yifei Zhang, P. Chaloupka, Yi-Fei Xu, Derek Anderson, Janet Elizabeth Seger, Ting Lin, I. Bunzarov, O. Matonoha, M. Lomnitz, I. M. Deppner, N. G. Minaev, Catherine Tomkiel, Hank Crawford, T. Ullrich, H. Z. Huang, Yi Wang, R. Pak, Siwei Luo, Feng Liu, A. I. Hamad, Sedigheh Jowzaee, P. Filip, Dave Underwood, Rafal Sikora, Gene Van Buren, Bill Christie, Hans Georg Ritter, Declan Keane, Xinjie Huang, Joseph Adams, Prithwish Tribedy, B. K. Srivastava, Juan M. Romero, Shengli Huang, T. G. Dedovich, Isaac Mooney, Shenghui Zhang, William Jacobs, B. Schmidke, Alena Harlenderova, H. W. Ke, L. Fulek, Yang Wu, Anik Gupta, Frank Jm Geurts, T. Galatyuk, K. Meehan, Jindrich Lidrych, Yifan Hong, Song Zhang, Zebo Tang, K. Yip, Giacomo Contin, Rongrong Ma, Nihar Sahoo, Robert Licenik, Anthony Robert Timmins, Adam Ryszard Kisiel, Roland Laszlo Pinter, R. Fatemi, Todd Kinghorn, Brian Page, Ming Shao, M. Cherney, Rosi Reed, Lokesh Kumar, A. V. Brandin, Hua Pei, S. K. Tripathy, Vipul Bairathi, Irakli Chakaberia, Y. Fisyak, K. Oh, Qian Yang, Richard Daniel Majka, D. Kalinkin, S. Heppelmann, Xin Li, B. J. Summa, S. Siejka, Z. Y. Zhang, P. Seyboth, Jan Vanek, Leszek Adamczyk, S. Ramachandran, O. Eyser, Jianping Cheng, Sergei A. Voloshin, S. Vokal, Yue Liang, Wei Xie, Hal Spinka, Hao-jie Xu, Roy A. Lacey, T. Edmonds, Pengfei Wang, P. V. Shanmuganathan, D. Mallick, G. Igo, K. Kauder, A. Taranenko, F. G. Atetalla, Alexander Schmah, Lanny Ray, H. Liu, David Stewart, Jakub Kvapil, Sevil Salur, A. K. Bhati, Nikolai Smirnov, Xiaoping Zhang, L. G. Efimov, L. Didenko, Peng Liu, Wlodek Guryn, Y. Panebratsev, Saehanseul Oh, D. Grosnick, R. Aoyama, Samuel Heppelmann, B. Tu, Qinghua Xu, Maksym Zyzak, D. D. Brown, R. Seto, James Brandenburg, K. N. Barish, T. Tarnowsky, Xianglei Zhu, and A. A. Derevschikov
Subjects: Physics, Quark, Particle physics, Proton, 010308 nuclear & particles physics, Drell–Yan process, 01 natural sciences, Helicity, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Spin-½, Boson
Abstract: We report new STAR measurements of the single-spin asymmetries $A_L$ for $W^+$ and $W^-$ bosons produced in polarized proton--proton collisions at $\sqrt{s}$ = 510 GeV as a function of the decay-positron and decay-electron pseudorapidity. The data were obtained in 2013 and correspond to an integrated luminosity of 250 pb$^{-1}$. The results are combined with previous results obtained with 86 pb$^{-1}$. A comparison with theoretical expectations based on polarized lepton-nucleon deep-inelastic scattering and prior polarized proton--proton data suggests a difference between the $\bar{u}$ and $\bar{d}$ quark helicity distributions for $0.05 < x < 0.25$. In addition, we report new results for the double-spin asymmetries $A_{LL}$ for $W^\pm$, as well as $A_L$ for $Z/\gamma^*$ production and subsequent decay into electron--positron pairs.
Published: 2019

33. Exclusive vector meson production at an electron-ion collider

Author: M. Lomnitz and S. R. Klein
Subjects: Physics, Particle physics, Photon, Nuclear Theory, Meson, High Energy Physics::Phenomenology, FOS: Physical sciences, Electron, Gluon, law.invention, Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), law, Saturation (graph theory), High Energy Physics::Experiment, Rapidity, Vector meson, Nuclear Experiment (nucl-ex), Nuclear Experiment, Collider
Abstract: Coherent exclusive vector meson electroproduction is a key physics channel at an electron-ion collider. It probes the gluon structure of nuclei over a wide range of $Q^2$, and can be used to measure nuclear shadowing and to search for gluon saturation and/or the colored glass condensate. In this paper, we present calculations of the kinematic distributions for a variety of exclusive vector meson final states: the $\rho$, $\phi$, J/$\psi$, $\psi'$ and the $\Upsilon$ states. The cross-sections for light and $c\overline c$ mesons are large, while $\Upsilon$ states should be produced in moderate numbers at a medium energy EIC (the proposed U.S. designs) and in large numbers at the LHeC. We investigate the acceptances for these states, as a function of detector rapidity coverage. A large-acceptance detector is needed to cover the full range photon-nucleon collision energies produced at an EIC; a forward detector is required to observe vector mesons from the most energetic photon interactions, and thereby probe gluons at the lowest possible Bjorken-$x$ values., Comment: 12 pages, 12 figures and 4 tables
Published: 2019

34. Erratum: Observation of D0 Meson Nuclear Modifications in Au+Au Collisions at sNN=200 GeV [Phys. Rev. Lett. 113 , 142301 (2014)]

Author: Zebo Tang, Janusz Chwastowski, Leo Clifford Greiner, C. Perkins, F. Ding, P. Djawotho, F. Videbæk, G. Webb, Wenbin Yan, Y. Panebratsev, D. Grosnick, Rihan Haque, Zhigang Xiao, H. Z. Huang, S. Vokal, Sukalyan Chattopadhyay, N. G. Minaev, Z. Z. Xu, Madan M. Aggarwal, Fuqiang Wang, Jaroslav Bielcik, Jie Zhang, A. Vossen, Nikita Smirnov, O. D. Tsai, Y. Zawisza, M. J. Skoby, Frank Jm Geurts, K. Yip, J. S. Wang, N. Xu, P. Filip, H. W. Ke, O. V. Rogachevskiy, H. J. Jang, T. Kollegger, F. Liu, D. D. Koetke, M. C. Cervantes, J. H. Chen, Li-Zhu Chen, W. Q. Shen, Vitaly Okorokov, Bernd Surrow, P. Pile, G. D. Westfall, B. Pawlik, R. R. Debbe, D. A. Morozov, Nasim, S. Das, B. Huang, A. Gupta, D. Solanki, Mariusz Przybycien, L. Kotchenda, W. B. Schmidke, C. A. Gagliardi, M. Pachr, D. Garand, Y. Wang, Y. F. Xu, S. Dhamija, M. Lomnitz, Sevil Salur, Basanta Kumar Nandi, M. Tokarev, D. Tlusty, D. Kalinkin, S. Zhang, S. G. Brovko, R. D. Majka, S. Heppelmann, J. Rusnak, N. K. Pruthi, D. M.M.D. Madagodagettige Don, D. R. Gangadharan, A. F. Kraishan, D. N. Svirida, Niladribihari Sahoo, T. D. S. Stanislaus, L. Ruan, A. M. Poskanzer, Maxence Vandenbroucke, M. K. Mustafa, S. K. Gupta, Giacomo Contin, J. L. Drachenberg, W. Borowski, J. Schambach, Anju Bhasin, Z. H. Khan, Guo-Liang Ma, S. Ramachandran, G. Eppley, Y. Li, H. H. Wieman, Li Yi, A. Chikanian, C. Yang, I. Sakrejda, O. Eyser, J. Pluta, M. Zyzak, Stephen V. Gliske, A. K. Bhati, D. Keane, Y. F. Wu, K. Kang, Aditi Banerjee, R. Stock, W. Li, A. Lebedev, L. G. Efimov, T. J. Humanic, J. Putschke, E. Sangaline, D. Arkhipkin, Xiaofeng Zhu, D. P. Mahapatra, T. K. Nayak, Z. P. Zhang, A. Hamed, A. S. Hirsch, J. Engelage, Rene Bellwied, H. G. Ritter, G. Nigmatkulov, P. Kravtsov, A. M. Schmah, Y. H. Zhu, R. E. Tribble, Dmitry Smirnov, Z. Ye, T. P. Burton, Jize Zhao, Y. Yang, Gerald W Hoffmann, X. Huang, A. Kechechyan, J. M. Landgraf, D. J. Hofman, Xiangyuan Cui, W. Christie, Nilay Shah, Pradip Kumar Sahu, R. Cendejas, A. V. Brandin, A. Ogawa, P. Chaloupka, Andrey Vasiliev, M. Strikhanov, K. Xin, J. Takahashi, S. Trentalange, X.G. Li, H. F. Chen, P. Huck, M. A. C. Lamont, S. B. Nurushev, J. Konzer, P. Sorensen, Janet Elizabeth Seger, D. L. Olvitt, A. Kesich, G. Odyniec, J. Sandweiss, J. Turnau, M. Shao, Y. X. Pan, G. Van Buren, S. Fazio, I. G. Bordyuzhin, S. S. Shi, Mirko Planinic, Jana Bielcikova, Anthony Robert Timmins, Adam Ryszard Kisiel, Prabhat Ranjan Pujahari, J. L. Romero, J. M. Nelson, H. J. Crawford, J. K. Adkins, Y. G. Ma, W. Peryt, E. Finch, C-Q. Li, R. P. Scharenberg, Christina Markert, R. Fatemi, O. Rusnakova, H. S. Matis, W. W. Jacobs, J. Lauret, J. A. Vanfossen, R. Lednicky, Haiyan Wang, J. F. Ross, X. M. Sun, Wei Xie, T. G. Dedovich, M. Cherney, Xiangming Sun, A. Aparin, G. M.S. Vasconcelos, Y. Pandit, K. S. Engle, Lokesh Kumar, Hua Pei, N. Schmitz, E. Shahaliev, Amal Sarkar, I. Koralt, N. Yu, L. V. Nogach, J. H. Thomas, G. S. Averichev, Jian Deng, J. Porter, Ivan Kisel, G. Agakishiev, D. S. Gunarathne, E. P. Sichtermann, A. Roy, Z. Chang, D. Cebra, Rashmi Raniwala, H. M. Spinka, T. Ullrich, Radoslaw Antoni Kycia, C. M. Du, H. S. Xu, L. Eun, I. G. Alekseev, Y. Guo, Jongmin Lee, R. L. Ray, M. A. Lisa, T. Ljubicic, C. D. Anson, R. Witt, H. Caines, Sudhir Raniwala, A. Quintero, S. Mioduszewski, Bedangadas Mohanty, Zhiming Li, H. Bichsel, A. Gibson, Y. Zoulkarneeva, C. Zhong, X. L. Wang, Donald M. McDonald, E. C. Aschenauer, S. Margetis, Prithwish Tribedy, B. K. Srivastava, Alice Elisabeth Ohlson, X. Dong, S. K. Pal, Justin Stevens, J. M. Butterworth, M. Calderon De La Barca Sanchez, M. Wada, J. C. Webb, Robert Vertesi, Olga Evdokimov, Barbara Antonina Trzeciak, H. Masui, L. Didenko, I. K. Yoo, Hao Qiu, P. V. Shanmuganathan, T. Tarnowsky, L. E. Dunkelberger, M. M. Mondal, C. E. Flores, E. G. Judd, Jay Roberts, A. A. Derevschikov, Michal Sumbera, S. Bültmann, S. W. Wissink, Y. Zhang, Nikola Poljak, J. E. Draper, G. Wang, Z. J. Sun, K. Krueger, C. K. Riley, G. J. van Nieuwenhuizen, M. A. Szelezniak, L. C. Bland, J. Alford, W. Guryn, Y. Fisyak, K. Oh, J. Fedorisin, P. Seyboth, J. C. Dunlop, Leszek Adamczyk, R. Derradi de Souza, Q. H. Xu, J. W. Harris, J. Xu, I. Kulakov, M. J. M. Codrington, B. Di Ruzza, Zubayer Ahammed, S. Horvat, R. N. Singaraju, T. Pawlak, W. Zha, M. J. LeVine, D. G. Underwood, J. Cheng, T. J. M. Symons, L. C. De Silva, P. Yepes, R. S. Longacre, A. Davila Leyva, Xuan Zhang, Q. Y. Shou, X. G. Luo, A. H. Tang, G. Igo, J. Novak, B. Sharma, J. Bouchet, K. D. Landry, K. Kauder, I. Bunzarov, Hanna Paulina Zbroszczyk, D. R. Beavis, F. Zhao, W. J. Llope, R. Varma, L-X. Han, S. Y. Noh, J. L. Zhang, B. S. Page, D. P. Kikola, B. Stringfellow, J. G. Cramer, M. R. Girard, E. W. Oldag, T. S. McShane, P. Bhattarai, Y. J. Sun, C. Dilks, S. Kabana, Y. P. Viyogi, and B. Haag
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, Heavy ion, Charm (quantum number), 010306 general physics, 01 natural sciences
Published: 2018

35. Di-hadron correlations with identified leading hadrons in 200 GeV Au + Au and d + Au collisions at STAR

Author: L. Adamczyk, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, A. Aparin, D. Arkhipkin, E.C. Aschenauer, G.S. Averichev, X. Bai, V. Bairathi, A. Banerjee, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, D. Brandenburg, A.V. Brandin, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, M.C. Cervantes, I. Chakaberia, P. Chaloupka, Z. Chang, S. Chattopadhyay, X. Chen, J.H. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. 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, P. Federic, J. Fedorisin, Z. Feng, P. Filip, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, L. Greiner, D. Grosnick, D.S. Gunarathne, Y. Guo, S. Gupta, A. Gupta, W. Guryn, A. Hamad, A. Hamed, R. Haque, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, T. Huang, B. Huang, H.Z. Huang, X. Huang, P. Huck, T.J. Humanic, G. Igo, W.W. Jacobs, H. Jang, J. Jia, K. Jiang, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z.H. Khan, D.P. Kikoła, A. Kisiel, L. Kochenda, D.D. Koetke, L.K. Kosarzewski, A.F. Kraishan, P. Kravtsov, K. Krueger, L. Kumar, M.A.C. Lamont, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, W. Li, Z.M. Li, Y. Li, C. Li, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, G.L. Ma, Y.G. Ma, R. Ma, L. Ma, N. Magdy, R. Majka, A. Manion, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, K. Meehan, J.C. Mei, N.G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, G. Nigmatkulov, T. Niida, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V. Okorokov, D. Olvitt, B.S. Page, R. Pak, Y.X. Pan, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, A. Peterson, P. Pile, J. Pluta, K. Poniatowska, J. Porter, M. Posik, A.M. Poskanzer, N.K. Pruthi, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R. Raniwala, S. Raniwala, R.L. Ray, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, A. Roy, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, I. Sakrejda, S. Salur, J. Sandweiss, A. Sarkar, J. Schambach, R.P. Scharenberg, A.M. Schmah, W.B. Schmidke, N. Schmitz, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, B. Sharma, M.K. Sharma, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, N. Smirnov, D. Smirnov, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stepanov, M. Strikhanov, B. Stringfellow, M. Sumbera, B. Summa, Y. Sun, Z. Sun, X.M. Sun, X. Sun, B. Surrow, D.N. Svirida, M.A. Szelezniak, A.H. Tang, Z. Tang, T. Tarnowsky, A. Tawfik, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, M. Vandenbroucke, R. Varma, A.N. Vasiliev, R. Vertesi, F. Videbæk, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, J.S. Wang, F. Wang, H. Wang, G. Wang, Y. Wang, G. Webb, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y.F. Wu, null Wu, Z.G. Xiao, W. Xie, K. Xin, H. Xu, Z. Xu, Q.H. Xu, Y.F. Xu, N. Xu, S. Yang, Y. Yang, Q. Yang, C. Yang, Z. Ye, P. Yepes, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Y. Zhang, Z. Zhang, J.B. Zhang, J. Zhang, X.P. Zhang, S. Zhang, J. Zhao, C. Zhong, L. Zhou, X. Zhu, Y. Zoulkarneeva, Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Aparin, A., Arkhipkin, D., Aschenauer, E. C., Averichev, G. S., Bai, X., Bairathi, V., Banerjee, A., Bellwied, R., Bhasin, A., Bhati, A. K., Bhattarai, P., Bielcik, J., Bielcikova, J., Bland, L. C., Bordyuzhin, I. G., Bouchet, J., Brandenburg, D., Brandin, A. V., Bunzarov, I., Butterworth, J., Caines, H., Calderón de la Barca Sánchez, M., Campbell, J. M., Cebra, D., Cervantes, M. C., Chakaberia, I., Chaloupka, P., Chang, Z., Chattopadhyay, S., Chen, X., Chen, J. H., 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., di Ruzza, B., Didenko, L., Dilks, C., Dong, X., Drachenberg, J. L., Draper, J. E., Du, C. M., Dunkelberger, L. E., Dunlop, J. C., Efimov, L. G., 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, 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, S., Gupta, A., Guryn, W., Hamad, A., Hamed, A., Haque, R., Harris, J. W., He, L., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Hofman, D. J., Horvat, S., Huang, T., Huang, B., Huang, H. Z., Huang, X., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jang, H., Jia, J., Jiang, K., Judd, E. G., Kabana, S., Kalinkin, D., Kang, K., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Khan, Z. H., Kikoła, D. P., 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, X., Li, W., Li, Z. M., Li, Y., Li, C., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Lomnitz, M., Longacre, R. S., Luo, X., Ma, G. L., Ma, Y. G., Ma, R., Ma, L., Magdy, N., Majka, R., Manion, A., Margetis, S., Markert, C., Masui, H., Matis, H. S., Mcdonald, D., Meehan, K., Mei, J. C., Minaev, N. G., Mioduszewski, S., Mishra, D., Mohanty, B., Mondal, M. M., Morozov, D. A., Mustafa, M. K., Nandi, B. K., Nasim, Md., Nayak, T. K., Nigmatkulov, G., Niida, T., Nogach, L. V., Noh, S. Y., Novak, J., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Okorokov, V., Olvitt, D., Page, B. S., Pak, R., Pan, Y. X., Pandit, Y., Panebratsev, Y., Pawlik, B., Pei, H., Perkins, C., Peterson, A., Pile, P., Pluta, J., Poniatowska, K., Porter, J., Posik, M., Poskanzer, A. M., Pruthi, N. K., Putschke, J., Qiu, H., Quintero, A., Ramachandran, S., Raniwala, R., Raniwala, S., Ray, R. L., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Roy, A., Ruan, L., Rusnak, J., Rusnakova, O., Sahoo, N. R., Sahu, P. K., Sakrejda, I., Salur, S., Sandweiss, J., Sarkar, A., 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, B., Sharma, M. K., Shen, W. Q., Shi, S. S., Shou, Q. Y., Sichtermann, E. P., Sikora, R., Simko, M., Singha, S., Skoby, M. J., Smirnov, N., Smirnov, D., Song, L., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stepanov, M., Strikhanov, M., Stringfellow, B., Sumbera, M., Summa, B., Sun, Y., Sun, Z., Sun, X. M., Sun, X., Surrow, B., Svirida, D. N., Szelezniak, M. A., Tang, A. H., Tang, Z., Tarnowsky, T., Tawfik, A., 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., Vandenbroucke, M., Varma, R., Vasiliev, A. N., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wang, J. S., Wang, F., Wang, H., Wang, G., Wang, Y., Webb, G., Webb, J. C., Wen, L., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Wu, Null, Xiao, Z. G., Xie, W., Xin, K., Xu, H., Xu, Z., Xu, Q. H., Xu, Y. F., Xu, N., Yang, S., Yang, Y., Yang, Q., Yang, C., Ye, Z., Yepes, P., Yi, L., Yip, K., Yoo, I. -K., Yu, N., Zbroszczyk, H., Zha, W., Zhang, Y., Zhang, Z., Zhang, J. B., Zhang, J., Zhang, X. P., Zhang, S., Zhao, J., Zhong, C., Zhou, L., Zhu, X., Zoulkarneeva, Y., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and STAR
Subjects: Quark, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Lattice, Nuclear Theory, Hadron, FOS: Physical sciences, Constituent quark, Context (language use), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear physics, Root-S(Nn)=2.76 Tev, Pion, Pb-Pb Collisions, Nuclear Experiment (nucl-ex), heavy ions, Nuclear Experiment, Nuclear and High Energy Physic, Transverse-Momentum, Physics, RHIC, STAR, High Energy Physics::Phenomenology, Spectra, Pp, Collaboration, lcsh:QC1-999, heavy ion, quark gluon plasma, Hadronization, Nucleus Collisions, Perspective, Quark–gluon plasma, Quark-Gluon Plasma, High Energy Physics::Experiment, Relativistic Heavy Ion Collider, lcsh:Physics
Abstract: The STAR Collaboration presents for the first time two-dimensional di-hadron correlations with identified leading hadrons in 200 GeV central Au+Au and minimum-bias d+Au collisions to explore hadronization mechanisms in the quark gluon plasma. The enhancement of the jet-like yield for leading pions in Au + Au data with respect to the d + Au reference and the absence of such an enhancement for leading non-pions (protons and kaons) are discussed within the context of a quark recombination scenario. The correlated yield at large angles, specifically in the ridge region, is found to be significantly higher for leading non-pions than pions. The consistencies of the constituent quark scaling, azimuthal harmonic model and a mini-jet modification model description of the data are tested, providing further constraints on hadronization. (C) 2015 The Authors. Published by Elsevier B.V.
Published: 2015

36. Low- pT e+e− Pair Production in Au+Au Collisions at sNN=200 GeV and U+U Collisions at sNN=193 GeV at STAR

Author: Xiaofeng Luo, Arka Chatterjee, Guo-Liang Ma, Li Yi, Xiangming Sun, J. K. Adkins, R. Fatemi, L. He, Jongmin Lee, R. L. Ray, Shaji Kumar, Todd Kinghorn, K. Krueger, R. Ma, A. S. Hirsch, Zongye Zhang, Vitaly Okorokov, Y. Guo, Y. Li, S. Singha, Alexandre Alarcon Do Passo Suaide, A. K. Bhati, D. Keane, P. Kravtsov, Fuwang Shen, A. M. Schmah, I. Kisel, Bernd Surrow, I. G. Bordyuzhin, T. Ljubicic, I. G. Alekseev, N. K. Pruthi, Nikolai Smirnov, J. Bryslawskyj, M. A. Lisa, J. C. Mei, Xuan Zhang, Niseem Magdy, H. Caines, M. Lomnitz, N. Elsey, D. Mayes, L. G. Efimov, J. L. Drachenberg, M. Cherney, Lokesh Kumar, R. Aoyama, Z. Chang, Hua Pei, W. B. Schmidke, G. Eppley, Hanna Paulina Zbroszczyk, Q. H. Xu, Nasim, P. Federic, S. K. Tripathy, J. A. Mazer, Justin Ewigleben, G. Odyniec, C. A. Gagliardi, J. Xu, J. Lidrych, Olga Evdokimov, J. Pluta, J. R. Adams, W. Solyst, H. Z. Huang, G. Agakishiev, D. S. Gunarathne, D. Cebra, S. Vokal, Shize Yang, N. Chankova-Bunzarova, W. Li, A. Taranenko, Zhanwen Zhu, I. K. Yoo, C. Zhong, E. C. Aschenauer, S. Kabana, S. Margetis, Anik Gupta, G. Wang, B.R. Schweid, X. Dong, R. Reed, Giacomo Contin, L. Ma, F. Seck, Madan M. Aggarwal, Fuqiang Wang, Rene Bellwied, F. Videbæk, M. Posik, D. K. Mishra, Zhigang Xiao, T. Huang, Jay Roberts, Z. Ye, J. H. Chen, Jaroslav Adam, H. M. Spinka, Frank Jm Geurts, T. Galatyuk, R. E. Tribble, Nihar Sahoo, C. E. Flores, E. G. Judd, Anju Bhasin, Y. Panebratsev, Saehanseul Oh, Maowu Nie, D. Kalinkin, E. P. Sichtermann, P. Federicova, D. Grosnick, D. A. Morozov, X. Huang, A. Kechechyan, Yunpeng Liu, Derek Anderson, Xiaofeng Zhu, Ying Liang, Sukalyan Chattopadhyay, G. Xie, B. Huang, T. Ullrich, N. G. Minaev, R. Lacey, Pradip Kumar Sahu, L. Zhang, H. W. Ke, P. Sorensen, A. J. Bassill, A. Ogawa, Anthony Robert Timmins, J. H. Thomas, B. Pawlik, A. Vossen, Michal Sumbera, N.N. Ajitanand, S. Heppelmann, Adam Ryszard Kisiel, N. Herrmann, S. Siejka, R. S. Longacre, B. J. Summa, L. P. Zhou, A. Gibson, F-H. Chang, Q. Yang, T. Niida, Yu-Gang Ma, Catherine Tomkiel, H. J. Crawford, P. V. Shanmuganathan, C. Zhou, K. Meehan, C-Q. Li, J. C. Dunlop, L. Wen, G. S. Averichev, S. Esumi, S. H. Zhang, N. Kulathunga, N. Xu, P. Filip, B. Tu, S. W. Wissink, D. Mallick, J. Engelage, Peter Q. Liu, J. Kvapil, Y. Zhang, A. Lebedev, G. D. Westfall, J. Porter, Christina Markert, D. Smirnov, O. Rusnakova, S. Ramachandran, H. S. Matis, O. Eyser, M. Tokarev, Yang Yang, J. M. Nelson, S. K. Radhakrishnan, G. Nigmatkulov, W. J. Llope, L. Fulek, G. Igo, Y. Wang, F. G. Atetalla, L. K. Kosarzewski, Y. Fisyak, D. L. Olvitt, Nilay Shah, Zubayer Ahammed, W. W. Jacobs, O. D. Tsai, J. Lauret, Jaroslav Bielcik, L. Didenko, I. Chakaberia, L. Krauth, K. Oh, Alexander Jentsch, Zebo Tang, James Brandenburg, K. Yip, R. Lednicky, L. Kochenda, T. Tarnowsky, D. Arkhipkin, A. Hamed, J. Butterworth, J. M. Landgraf, Lukas Holub, Bedangadas Mohanty, P. Szymanski, K. Kauder, A. Attri, K. N. Barish, P. Seyboth, M. Strikhanov, Y. F. Xu, P. Huo, Q. Y. Shou, W. Q. Shen, Xiang Sun, Chong Kim, Jan Vanek, Leszek Adamczyk, C. Perkins, R. Pak, O. V. Rogachevskiy, J. Rusnak, A. F. Kraishan, S. R. Klein, Jorn Henning Putschke, A. Quintero, A. V. Brandin, P. Chaloupka, T. D. S. Stanislaus, Ting Lin, Z. J. Xu, J. Sandweiss, H. Liu, L. Ruan, M. Zyzak, S. Trentalange, Vipul Bairathi, David Stewart, H. G. Ritter, H. H. Wieman, R. Witt, D. Tlusty, T. Todoroki, S. Mioduszewski, Sevil Salur, Arabinda Behera, David Brown, M. Calderon De La Barca Sanchez, A. I. Hamad, A. A. Derevschikov, Sedigheh Jowzaee, Prithwish Tribedy, B. K. Srivastava, Rafal Sikora, F. Liu, Shengli Huang, J. W. Harris, Miroslav Simko, Mariusz Przybycien, A. H. Tang, I. Bunzarov, O. Matonoha, J. C. Webb, L. C. Bland, R. D. Majka, R. Seto, J. Schambach, Chi Yang, W. Christie, D. N. Svirida, Andrey Vasiliev, X.G. Li, Janet Elizabeth Seger, I. M. Deppner, T. J. Humanic, B. S. Page, D. P. Kikola, B. Stringfellow, Isaac Upsal, Jana Bielcikova, Tetsuro Sugiura, J. L. Romero, I. Vassiliev, Lukas Kramarik, Y. J. Sun, C. Dilks, E. Finch, Xuedong Bai, D. Kapukchyan, D. G. Underwood, T. Nonaka, Wei Xie, A. Aparin, J. D. Negrete, N. Schmitz, J. Cheng, E. Shahaliev, Roli Esha, Daniel Nemes, Jie Zhao, S. Horvat, J. Y. Zhang, A. Lipiec, W. Zha, N. Yu, Kejun Kang, L. V. Nogach, A. Harlenderova, Sumit R. Das, W. Guryn, J. Fedorisin, M. M. Mondal, S. B. Nurushev, J. M. Campbell, Joseph Kwasizur, M. Shao, G. Van Buren, T. G. Dedovich, S. S. Shi, S. Fazio, Xuliang Chen, Siwei Luo, Isaac Mooney, J. Jia, Muhammad Usman Ashraf, Sergey Voloshin, K. Jiang, Yanjun Wu, and M. Sergeeva
Subjects: Physics, Spectral representation, Pair production, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, General Physics and Astronomy, Star (graph theory), 010306 general physics, 01 natural sciences, Mathematical physics
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Ajitanand, NN; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Atetalla, F; Attri, A; Averichev, GS; Bai, X; 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; Brown, D; Bryslawskyj, J; Bunzarov, I; Butterworth, J; Caines, H; Calderon de la Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, F-H; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; Chen, X; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Dunlop, JC; Efimov, LG; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Federicova, P; Fedorisin, J; Filip, P; Finch, E; Fisyak, Y; Flores, CE; Fulek, L; Gagliardi, CA; Galatyuk, T | Abstract: We report first measurements of e^{+}e^{-} pair production in the mass region 0.4
Published: 2018

37. Low-p_{T} e^{+}e^{-} Pair Production in Au+Au Collisions at sqrt[s_{NN}]=200 GeV and U+U Collisions at sqrt[s_{NN}]=193 GeV at STAR

Author: 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 V, Brandin, D, Brown, J, Bryslawskyj, I, Bunzarov, J, Butterworth, H, Caines, M, Calderón de la Barca Sánchez, J M, Campbell, D, Cebra, I, Chakaberia, P, Chaloupka, F-H, Chang, Z, 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 I, Hamad, A, Hamed, A, Harlenderova, J W, Harris, L, He, S, Heppelmann, N, Herrmann, A, Hirsch, L, Holub, S, Horvat, X, Huang, B, Huang, S L, Huang, H Z, Huang, T, 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, Kikoła, C, Kim, T A, Kinghorn, I, Kisel, A, Kisiel, S R, Klein, L, Kochenda, L K, Kosarzewski, A F, Kraishan, L, Kramarik, L, Krauth, P, Kravtsov, K, Krueger, N, Kulathunga, S, Kumar, L, Kumar, J, Kvapil, J H, Kwasizur, R, Lacey, J M, Landgraf, J, Lauret, A, Lebedev, R, Lednicky, J H, Lee, X, Li, C, Li, W, Li, Y, Li, Y, Liang, J, Lidrych, T, Lin, A, Lipiec, M A, Lisa, F, Liu, P, Liu, H, Liu, Y, Liu, T, Ljubicic, W J, Llope, M, Lomnitz, R S, Longacre, X, Luo, S, Luo, G L, Ma, Y G, Ma, L, Ma, R, 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 V, Nogach, T, Nonaka, S B, Nurushev, G, Odyniec, A, Ogawa, K, Oh, S, 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 V, 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 V, 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, N, Smirnov, D, 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, Y, Sun, X, 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, Videbæk, S, Vokal, S A, Voloshin, A, Vossen, G, Wang, Y, Wang, F, Wang, J C, Webb, L, Wen, G D, Westfall, H, Wieman, S W, Wissink, R, Witt, Y, Wu, Z G, Xiao, G, Xie, W, Xie, Q H, Xu, Z, Xu, J, Xu, Y F, Xu, N, Xu, S, Yang, C, Yang, Q, Yang, Y, Yang, Z, Ye, L, Yi, K, Yip, I-K, Yoo, N, Yu, H, Zbroszczyk, W, Zha, Z, Zhang, L, Zhang, Y, Zhang, X P, Zhang, J, Zhang, S, Zhang, J, Zhao, C, Zhong, C, Zhou, L, Zhou, Z, Zhu, X, Zhu, and M, Zyzak
Abstract: We report first measurements of e^{+}e^{-} pair production in the mass region 0.4M_{ee}2.6 GeV/c^{2} at low transverse momentum (p_{T}0.15 GeV/c) in noncentral Au+Au collisions at sqrt[s_{NN}]=200 GeV and U+U collisions at sqrt[s_{NN}]=193 GeV. Significant enhancement factors, expressed as ratios of data over known hadronic contributions, are observed in the 40%-80% centrality of these collisions. The excess yields peak distinctly at low p_{T} with a width (sqrt[⟨p_{T}^{2}⟩]) between 40 and 60 MeV/c. The absolute cross section of the excess depends weakly on centrality, while those from a theoretical model calculation incorporating an in-medium broadened ρ spectral function and radiation from a quark gluon plasma or hadronic cocktail contributions increase dramatically with an increasing number of participant nucleons. Model calculations of photon-photon interactions generated by the initial projectile and target nuclei describe the observed excess yields but fail to reproduce the p_{T}^{2} distributions.
Published: 2018

38. Longitudinal double-spin asymmetries for π0s in the forward direction for 510 GeV polarized pp collisions

Author: M. Shao, G. Van Buren, S. S. Shi, J. H. Thomas, T. J. Humanic, Roli Esha, L. P. Zhou, Daniel Nemes, Jie Zhao, S. Horvat, J. W. Harris, F-H. Chang, Q. Yang, M. Simko, G. Eppley, J. Bryslawskyj, J. C. Dunlop, L. Wen, Jongmin Lee, R. L. Ray, B. S. Page, R. Ma, T. Ljubicic, D. P. Kikola, Niseem Magdy, H. Caines, M. Lomnitz, Zhigang Xiao, T. Huang, A. H. Tang, Zubayer Ahammed, A. Lipiec, David Brown, W. Zha, I. Bunzarov, O. Matonoha, B. Stringfellow, Muhammad Usman Ashraf, G. S. Averichev, Yunpeng Liu, Derek Anderson, J. Pluta, F. Liu, Mariusz Przybycien, Sergey Voloshin, N. Chankova-Bunzarova, W. Li, N. G. Minaev, S. Heppelmann, Jaroslav Bielcik, Jorn Henning Putschke, Y. Yang, B. J. Summa, L. Ma, A. V. Brandin, Q. Y. Shou, Rene Bellwied, K. Kauder, K. Jiang, F. G. Atetalla, Q. H. Xu, C-Q. Li, J. L. Romero, Yanjun Wu, Z. Ye, J. Xu, Jaroslav Adam, Maowu Nie, R. E. Tribble, N. Kulathunga, N. Xu, P. Filip, O. D. Tsai, Vipul Bairathi, Giacomo Contin, R. Pak, J. L. Drachenberg, D. G. Underwood, Olga Evdokimov, R. D. Majka, Lukas Kramarik, James Brandenburg, G. D. Westfall, M. Sergeeva, O. V. Rogachevskiy, X. Huang, A. Kechechyan, S. B. Nurushev, Christina Markert, K. N. Barish, J. Schambach, I. Vassiliev, A. Quintero, E. Finch, S. Fazio, Xuliang Chen, Nihar Sahoo, Xuedong Bai, Anik Gupta, S. Ramachandran, D. L. Olvitt, Siwei Luo, Arka Chatterjee, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Pradip Kumar Sahu, Y. Wang, Y. Fisyak, W. Christie, O. Eyser, Xiangming Sun, Isaac Upsal, Jay Roberts, Jiangyong Jia, Benjamin Schweid, D. Arkhipkin, A. Hamed, D. Smirnov, O. Rusnakova, H. S. Matis, J. Cheng, P. Federicova, Frank Jm Geurts, Isaac Mooney, Andrey Vasiliev, T. Galatyuk, K. Oh, B. Huang, Lukas Holub, N. N. Ajitanand, Bedangadas Mohanty, Anthony Robert Timmins, W. Q. Shen, N. K. Pruthi, J. Kvapil, H. W. Ke, H. Z. Huang, S. Vokal, Tetsuro Sugiura, Y. J. Sun, R. S. Longacre, Adam Ryszard Kisiel, X.G. Li, L. K. Kosarzewski, W. W. Jacobs, J. Rusnak, S. K. Radhakrishnan, A. F. Kraishan, Vitaly Okorokov, Nilay Shah, C. Zhou, A. A. Derevschikov, C. Dilks, Xiang Sun, Janet Elizabeth Seger, L. Fulek, P. V. Shanmuganathan, P. Szymanski, H. J. Crawford, K. Meehan, L. Ruan, Bernd Surrow, D. Kapukchyan, D. Mallick, I. M. Deppner, Anju Bhasin, M. Tokarev, K. Yip, Peng Huo, G. Xie, Y. Li, S. Singha, A. Harlenderova, J. Lauret, S. H. Zhang, A. J. Bassill, Maksym Zyzak, R. Lednicky, B. Pawlik, T. Todoroki, Alexandre Alarcon Do Passo Suaide, J. K. Adkins, A. Gibson, H. Liu, N. Elsey, T. Niida, G. Igo, J. H. Chen, A. Lebedev, D. Mayes, R. Fatemi, L. He, T. Nonaka, G. Wang, Chong Kim, Shaji Kumar, Todd Kinghorn, David Stewart, K. Krueger, L. Krauth, W. Guryn, R. Lacey, J. C. Webb, T. D. S. Stanislaus, L. Kochenda, T. Tarnowsky, H. H. Wieman, Xiaofeng Luo, Wei Xie, Zebo Tang, D. A. Morozov, Z. Chang, J. Butterworth, W. B. Schmidke, H. G. Ritter, A. Aparin, R. Seto, J. D. Negrete, Guo-Liang Ma, Y. F. Xu, Sevil Salur, C. A. Gagliardi, J. Fedorisin, N. Schmitz, R. Witt, E. Shahaliev, M. Cherney, Li Yi, Rafal Sikora, Lokesh Kumar, Hua Pei, S. K. Tripathy, C. Perkins, Jana Bielcikova, M. M. Mondal, N. Herrmann, J. M. Campbell, Madan M. Aggarwal, P. Sorensen, S. Mioduszewski, Michal Sumbera, Fuqiang Wang, L. C. Bland, D. K. Mishra, P. Chaloupka, Ting Lin, L. Didenko, I. Chakaberia, Z. J. Xu, S. Siejka, Xiaofeng Zhu, A. S. Hirsch, Catherine Tomkiel, Ying Liang, S. Trentalange, D. Kalinkin, T. G. Dedovich, Prithwish Tribedy, B. K. Srivastava, Chi Yang, P. Seyboth, D. N. Svirida, P. Kravtsov, Fuwang Shen, A. Ogawa, S. W. Wissink, Y. Zhang, A. Vossen, Jan Vanek, Leszek Adamczyk, A. M. Schmah, Zongye Zhang, S. Esumi, Y. Guo, I. G. Bordyuzhin, P. Federic, J. Y. Zhang, A. K. Bhati, D. Keane, N. Yu, Kejun Kang, L. V. Nogach, Sumit R. Das, J. A. Mazer, D. Tlusty, I. K. Yoo, Nikolai Smirnov, C. E. Flores, E. G. Judd, L. G. Efimov, F. Videbæk, Y. Panebratsev, Saehanseul Oh, D. Grosnick, Sukalyan Chattopadhyay, L. Zhang, B. Tu, Nasim, J. M. Nelson, W. J. Llope, Alexander Jentsch, A. Attri, P. Liu, J. Engelage, G. Nigmatkulov, J. M. Landgraf, M. Strikhanov, J. Sandweiss, Yu-Gang Ma, Xuan Zhang, R. Aoyama, Hanna Paulina Zbroszczyk, R. Reed, E. P. Sichtermann, T. Ullrich, C. Zhong, E. C. Aschenauer, S. Margetis, X. Dong, J. Lidrych, Shize Yang, G. Agakishiev, D. S. Gunarathne, F. Seck, M. Posik, D. Cebra, Arabinda Behera, A. Taranenko, H. M. Spinka, Zhanwen Zhu, S. Kabana, Justin Ewigleben, G. Odyniec, J. Porter, Ivan Kisel, S. L. Huang, J. R. Adams, W. Solyst, I. G. Alekseev, M. A. Lisa, J. C. Mei, and Joseph Kwasizur
Subjects: Physics, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, Transverse momentum, 010306 general physics, 01 natural sciences, Spin-½, Mathematical physics
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Ajitanand, NN; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Atetalla, F; Attri, A; Averichev, GS; Bai, X; 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; Brown, D; Bryslawskyj, J; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; Chen, X; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Dunlop, JC; Efimov, LG; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Federicova, P; Fedorisin, J; Filip, P; Finch, E; Fisyak, Y; Flores, CE; Fulek, L; Gagliardi, CA; Galatyuk, T | Abstract: The STAR Collaboration reports measurements of the longitudinal double-spin asymmetry, ALL, for neutral pions produced at forward directions in polarized proton-proton collisions, at a center-of-mass energy of 510 GeV. Results are given for transverse momenta in the range 2
Published: 2018

39. Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized pp collisions at s=200 GeV

Author: Jorn Henning Putschke, A. V. Brandin, G. Wang, Xiangming Sun, Vipul Bairathi, J. Porter, N. Herrmann, Ivan Kisel, I. Vassiliev, Anik Gupta, Frank Jm Geurts, S. Siejka, T. Galatyuk, C. Zhou, K. Meehan, S. H. Zhang, Benjamin Schweid, N. K. Pruthi, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, Xiaofeng Luo, Giacomo Contin, Siwei Luo, D. Arkhipkin, A. Hamed, E. P. Sichtermann, Zebo Tang, Guo-Liang Ma, Li Yi, K. Yip, I. K. Yoo, C. Perkins, S. L. Huang, P. Seyboth, N. N. Ajitanand, Nihar Sahoo, G. Eppley, Jan Vanek, A. S. Hirsch, P. Kravtsov, Fuwang Shen, A. M. Schmah, Leszek Adamczyk, J. L. Drachenberg, R. S. Longacre, S. Fazio, J. Pluta, N. Chankova-Bunzarova, W. Li, Xuliang Chen, Jiangyong Jia, P. Federic, L. Ma, Rene Bellwied, P. V. Shanmuganathan, M. Tokarev, D. Mallick, Olga Evdokimov, Roli Esha, Isaac Mooney, Daniel Nemes, Jie Zhao, S. Horvat, S. Heppelmann, B. J. Summa, C. E. Flores, E. G. Judd, J. L. Romero, Lukas Kramarik, E. Finch, Anthony Robert Timmins, Adam Ryszard Kisiel, R. E. Tribble, Xuedong Bai, T. J. Humanic, Shize Yang, F. Seck, I. G. Alekseev, Arka Chatterjee, F. Videbæk, D. Tlusty, G. Igo, T. Ullrich, T. D. S. Stanislaus, Xiaofeng Zhu, Ying Liang, K. Kauder, H. J. Crawford, M. A. Lisa, J. C. Mei, Sukalyan Chattopadhyay, J. K. Adkins, H. H. Wieman, L. Krauth, M. Simko, M. Posik, Arabinda Behera, Jay Roberts, L. Zhang, Y. Panebratsev, Yu-Gang Ma, Lukas Holub, Bedangadas Mohanty, R. Fatemi, L. He, T. Nonaka, H. M. Spinka, Shaji Kumar, Todd Kinghorn, K. Krueger, J. Butterworth, A. Lipiec, A. Ogawa, Saehanseul Oh, Muhammad Usman Ashraf, J. Kvapil, W. Zha, D. Grosnick, Nilay Shah, B. S. Page, Xuan Zhang, S. Ramachandran, P. Chaloupka, Wei Xie, Y. F. Xu, H. W. Ke, J. M. Campbell, Jana Bielcikova, Y. Li, S. Singha, Alexandre Alarcon Do Passo Suaide, Ting Lin, Sergey Voloshin, Z. J. Xu, D. P. Kikola, Y. Wang, Y. Fisyak, O. Eyser, R. Aoyama, B. Stringfellow, Q. H. Xu, Z. Ye, J. Xu, J. H. Thomas, A. Aparin, S. Trentalange, Jaroslav Adam, J. W. Harris, K. Oh, Isaac Upsal, Hanna Paulina Zbroszczyk, D. G. Underwood, L. P. Zhou, J. Lidrych, D. L. Olvitt, Maowu Nie, T. G. Dedovich, K. Jiang, X. Huang, A. Kechechyan, P. Szymanski, J. D. Negrete, M. Cherney, F-H. Chang, Q. Yang, Lokesh Kumar, Hua Pei, S. K. Tripathy, Yanjun Wu, B. Pawlik, Pradip Kumar Sahu, P. Federicova, J. Bryslawskyj, C-Q. Li, H. Z. Huang, S. Vokal, J. Cheng, R. Witt, B. Huang, A. Gibson, Tetsuro Sugiura, R. Reed, G. Agakishiev, D. S. Gunarathne, N. Schmitz, E. Shahaliev, Y. J. Sun, B. Tu, Jongmin Lee, G. S. Averichev, A. H. Tang, N. Kulathunga, D. Cebra, M. Sergeeva, Michal Sumbera, C. Dilks, P. Sorensen, S. Mioduszewski, Peng Huo, A. Harlenderova, A. Taranenko, Zhanwen Zhu, J. M. Nelson, W. J. Llope, Catherine Tomkiel, J. H. Chen, N. Xu, P. Filip, I. Bunzarov, W. Guryn, R. L. Ray, V. A. Okorokov, R. Lacey, Prithwish Tribedy, B. K. Srivastava, R. Ma, S. W. Wissink, O. Matonoha, S. Kabana, Justin Ewigleben, G. Odyniec, Christina Markert, Alexander Jentsch, J. Y. Zhang, Y. Zhang, J. Fedorisin, M. M. Mondal, D. A. Morozov, A. Attri, N. Yu, Kejun Kang, L. V. Nogach, J. C. Dunlop, L. Wen, P. Liu, Sumit R. Das, Zubayer Ahammed, S. B. Nurushev, A. K. Bhati, D. Keane, Joseph Kwasizur, Nikolai Smirnov, L. G. Efimov, J. R. Adams, M. Shao, G. Van Buren, F. G. Atetalla, D. Smirnov, O. D. Tsai, O. Rusnakova, W. Solyst, S. S. Shi, T. Ljubicic, Q. Y. Shou, R. Pak, G. D. Westfall, W. Q. Shen, Xiang Sun, H. Liu, David Stewart, H. S. Matis, Sevil Salur, Niseem Magdy, H. Caines, D. Kapukchyan, M. Lomnitz, L. Didenko, I. Chakaberia, C. Zhong, E. C. Aschenauer, L. K. Kosarzewski, S. Margetis, James Brandenburg, X. Dong, W. W. Jacobs, K. N. Barish, J. Lauret, R. Lednicky, L. Kochenda, T. Tarnowsky, A. A. Derevschikov, Zhigang Xiao, T. Huang, Zongye Zhang, Y. Guo, Maksym Zyzak, I. G. Bordyuzhin, J. C. Webb, R. Seto, Yunpeng Liu, Derek Anderson, N. G. Minaev, J. A. Mazer, S. K. Radhakrishnan, L. Fulek, L. C. Bland, Chi Yang, J. Rusnak, A. F. Kraishan, L. Ruan, D. N. Svirida, Chong Kim, T. Todoroki, H. G. Ritter, Rafal Sikora, Jaroslav Bielcik, O. V. Rogachevskiy, J. Engelage, A. Quintero, G. Nigmatkulov, J. M. Landgraf, M. Strikhanov, J. Sandweiss, Nasim, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, D. Kalinkin, A. Vossen, S. Esumi, W. Christie, Bernd Surrow, Andrey Vasiliev, N. Elsey, D. Mayes, Z. Chang, X.G. Li, W. B. Schmidke, Janet Elizabeth Seger, C. A. Gagliardi, I. M. Deppner, David Brown, F. Liu, Mariusz Przybycien, Y. Yang, R. D. Majka, J. Schambach, Anju Bhasin, G. Xie, A. J. Bassill, T. Niida, and A. Lebedev
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Pseudorapidity, 0103 physical sciences, Chatterjee, 010306 general physics, 01 natural sciences
Abstract: Author(s): Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Ajitanand, NN; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Atetalla, F; Attri, A; Averichev, GS; Bai, X; 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; Brown, D; Bryslawskyj, J; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, FH; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; Chen, X; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; Dedovich, TG; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Dunlop, JC; Efimov, LG; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Federicova, P; Fedorisin, J; Filip, P; Finch, E; Fisyak, Y; Flores, CE; Fulek, L; Gagliardi, CA; Galatyuk, T | Abstract: We present the first measurements of the longitudinal double-spin asymmetry ALL for dijets with at least one jet reconstructed within the pseudorapidity range 0.8lηl1.8. The dijets were measured in polarized pp collisions at a center-of-mass energy s=200 GeV. Values for ALL are determined for several distinct event topologies, defined by the jet pseudorapidities, and span a range of parton momentum fraction x down to x∼0.01. The measured asymmetries are found to be consistent with the predictions of global analyses that incorporate the results of previous RHIC measurements. They will provide new constraints on Δg(x) in this poorly constrained region when included in future global analyses.
Published: 2018

40. Azimuthal anisotropy in Cu+Au collisions at sNN=200 GeV

Author: D. L. Olvitt, Isaac Upsal, James Brandenburg, J. Bryslawskyj, T. Nonaka, K. N. Barish, Subhasis Chattopadhyay, Joseph Kwasizur, T. Tarnowsky, Giacomo Contin, A. Aparin, Xianglei Zhu, Rongrong Ma, Alexander Vasiliev, Lanny Ray, Tetsuro Sugiura, P. V. Shanmuganathan, A. A. Derevschikov, Nihar Sahoo, C. Dilks, D. Mallick, Y. Pandit, Zillay Khan, X. C. Chen, Feng Liu, G. Igo, H. Liu, S. Kabana, F. Videbæk, E. Shahaliev, I. G. Bordyuzhin, Yuanjing Li, L. Krauth, M. Tokarev, Yang Yang, David Stewart, Jana Bielcikova, J. Engelage, Anthony Robert Timmins, Adam Ryszard Kisiel, Qinghua Xu, Maksym Zyzak, R. Seto, L. Zhang, Keith Landry, Hans Georg Ritter, P. Seyboth, Sevil Salur, G. Nigmatkulov, K. Kauder, A. Taranenko, L. Didenko, I. Chakaberia, Bedangadas Mohanty, Yang Wu, Anik Gupta, A. I. Hamad, A. Harlenderova, Jiro Fujita, Sedigheh Jowzaee, R. Fatemi, Xinjie Huang, Paul Sorensen, Gerrit Jan van Nieuwenhuizen, Yifei Zhang, Zachariah Miller, Abdel Nasser Tawfik, Chris Perkins, J. M. Landgraf, Ming Shao, Frank Jm Geurts, Prithwish Tribedy, B. K. Srivastava, Dmitry Morozov, Dave Underwood, Long Ma, Zhongbin Xu, J. L. Romero, M. Lomnitz, M. Strikhanov, Nu Xu, Jing-Han Chen, H. H. Wieman, Christina Markert, O. Rusnakova, Janet Elizabeth Seger, Declan Keane, Wei Li, Niseem Magdy Abdelwahab Abdelrahman, I. M. Deppner, M. Cherney, Rosi Reed, Lokesh Kumar, J. L. Drachenberg, Michal Sumbera, H. S. Matis, D. P. Kikola, B. Stringfellow, J. Sandweiss, P. Federic, Olga Evdokimov, Barbara Antonina Trzeciak, L. K. Kosarzewski, Kun Jiang, S. K. Tripathy, Jay Roberts, Yanfang Liu, Hank Crawford, Prabhat Bhattarai, J. Fedorisin, B. Pawlik, Jianping Cheng, E. Finch, Anju Bhasin, Daniel Brown, A. K. Bhati, Nasim, Xiaofeng Luo, Guo-Liang Ma, K. Meehan, Jindrich Lidrych, Zhenyu Ye, T. Niida, Nikolai Smirnov, Xiaoping Zhang, A. Lebedev, L. Adamczyk, Zhigang Xiao, T. Huang, Derek Anderson, K. Krueger, Hal Spinka, Grant Webb, Xu Sun, Alexandre Alarcon Do Passo Suaide, J. Lauret, Spiros Margetis, Martin Kocmanek, S. Stanislaus, L. Kochenda, D. Tlusty, Zhaozhong Shi, J. W. Harris, Gary Westfall, Li Yi, A. S. Hirsch, P. Kravtsov, L. G. Efimov, A. M. Schmah, Arghya Chatterjee, N. G. Minaev, R. Witt, Yi Guo, Manuel Calderon De La Barca Sanchez, Gang Wang, J. C. Dunlop, L. Wen, Kevin Adkins, John Campbell, Song Zhang, Zebo Tang, T. K. Nayak, S. B. Nurushev, S. Fazio, P. Federicova, Zubayer Ahammed, Norbert Schmitz, Jeong-Hun Lee, Robert E. Tribble, Zhao Feng, N. Kulathunga, S. Das, P. Filip, Norbert Herrmann, Wlodek Guryn, Y. Panebratsev, D. Grosnick, I. K. Yoo, Miroslav Simko, Ron Longacre, I. Bunzarov, Mariusz Przybycien, Cheng Li, D. Kapukchyan, J. Putschke, Roli Esha, R. Aoyama, Daniel Nemes, Jie Zhao, Z. Ye, A. Ogawa, Shuai Yang, Gene Van Buren, Y. Fisyak, Samuel Heppelmann, B. Tu, Q. Y. Shou, Yi-Fei Xu, Maowu Nie, M. M. Mondal, K. Oh, C. E. Flores, E. G. Judd, J. Schambach, Bill Christie, A. Kechechyan, W. Zha, Xiaozhi Bai, J. Porter, Pradip Kumar Sahu, Wen-Qing Shen, R. Pak, Jiangyong Jia, Xiaolong Chen, Arabinda Behera, J. Rusnak, A. F. Kraishan, L. Ruan, T. Todoroki, Long Zhou, Chong Kim, H. Z. Huang, Rafal Sikora, Jonathan Bouchet, Martin Girard, Jochen Mathias Thaeder, Mustafa M. Mustafa, B. Schmidke, H. W. Ke, L. Fulek, L. C. Bland, Katarzyna Poniatowska, Chi Yang, D. N. Svirida, T. G. Dedovich, H. Pei, N. Yu, E. P. Sichtermann, Kejun Kang, L. V. Nogach, Chensheng Zhou, Peifeng Liu, T. Ullrich, Yi Wang, Liang He, Neha Shah, C. Zhong, E. C. Aschenauer, X. Dong, T. Ljubicic, H. Caines, A. Quintero, Nuggehalli Ajitanand, Dmitri Smirnov, P. Chaloupka, Ting Lin, Muhammad Usman Ashraf, A. Gibson, O. D. Tsai, V. A. Okorokov, A. H. Tang, Benjamin Schweid, T. J. Humanic, D. Arkhipkin, A. Hamed, M. Sergeeva, Siwei Luo, Joseph Adams, Shenghui Zhang, William Jacobs, Jian Deng, G. Eppley, G. Agakishiev, D. S. Gunarathne, S. Horvat, J. Pluta, D. Cebra, S. Trentalange, Brian Page, Zhanwen Zhu, N. Chankova-Bunzarova, A. V. Brandin, Subhash Singha, Vipul Bairathi, Justin Ewigleben, G. Odyniec, Rene Bellwied, Qian Yang, Richard Daniel Majka, K. Yip, John Nelson, Xiangming Sun, B. Huang, J. M. Butterworth, J. H. Thomas, Arthur M. Poskanzer, Miroslav Saur, J. C. Webb, Jaroslav Bielcik, Jordan Roth, N. K. Pruthi, Jie Zhang, J. Kvapil, O. V. Rogachevskiy, W. Solyst, Sanshiro Mizuno, Y. K. Sun, Bernd Surrow, N. Elsey, D. Mayes, I. G. Alekseev, C. A. Gagliardi, M. A. Lisa, J. C. Mei, G. S. Averichev, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, A. Vossen, Ivan Kisel, Thorsten Sven Kollegger, D. Kalinkin, Z. Chang, Yaping Wang, Saskia Mioduszewski, Shusu Shi, S. Heppelmann, Xin Li, B. J. Summa, M. Posik, Z. Y. Zhang, Michael Skoby, J. E. Draper, S. Ramachandran, O. Eyser, Sergei A. Voloshin, S. Vokal, Wei Xie, Matthew Rehbein, Roy A. Lacey, W. J. Llope, Alexander Jentsch, A. Attri, P. Huo, Guannan Xie, R. Lednicky, Hanna Paulina Zbroszczyk, Ji Xu, Jingbo Zhang, S. W. Wissink, ShinIchi Esumi, and Yu-Gang Ma
Subjects: Physics, Range (particle radiation), 010308 nuclear & particles physics, media_common.quotation_subject, 01 natural sciences, Asymmetry, Charged particle, Pseudorapidity, Electric field, 0103 physical sciences, Rapidity, Center of mass, Atomic physics, Nuclear Experiment, 010306 general physics, Anisotropy, media_common
Abstract: The azimuthal anisotropic flow of identified and unidentified charged particles has been systematically studied in Cu+Au collisions at sNN=200 GeV for harmonics n=1–4 in the pseudorapidity range |η
Published: 2018

41. Beam Energy Dependence of Jet-Quenching Effects in Au+Au Collisions at sNN=7.7 , 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV

Author: Jana Bielcikova, J. L. Romero, J. Engelage, David Brown, Zebo Tang, E. Finch, T. Kollegger, G. Nigmatkulov, Xuedong Bai, F. Liu, Miroslav Simko, N. Kulathunga, N. Xu, P. Filip, Mariusz Przybycien, B. Pawlik, D. G. Underwood, A. Gibson, J. M. Landgraf, K. Yip, Q. Yang, J. K. Adkins, R. Fatemi, L. He, Z. Chang, Shize Yang, G. D. Westfall, Jun Deng, C. Perkins, M. Strikhanov, M. Posik, H. M. Spinka, T. J. Humanic, A. K. Bhati, D. Keane, James Brandenburg, J. Fujita, K. N. Barish, K. Krueger, R. D. Majka, J. Cheng, R. S. Longacre, B.R. Schweid, Muhammad Usman Ashraf, Michal Sumbera, Abdel Nasser Tawfik, I. Kisel, C. Zhong, E. C. Aschenauer, Nikolai Smirnov, Xiaofeng Zhu, J. Schambach, L. G. Efimov, J. Sandweiss, Nasim, Anik Gupta, J. L. Drachenberg, Z. Ye, Justin Ewigleben, J. M. Campbell, S. W. Wissink, Sergey Voloshin, J. W. Harris, G. Odyniec, W. Christie, L. C. Bland, S. Margetis, A. Ogawa, T. K. Nayak, P. V. Shanmuganathan, Olga Evdokimov, Barbara Antonina Trzeciak, M. Cherney, Lokesh Kumar, Jorn Henning Putschke, A. A.P. Suaide, D. Mallick, A. V. Brandin, Frank Jm Geurts, Maowu Nie, D. L. Olvitt, E. Sangaline, D. Arkhipkin, B. S. Page, Y. Zhang, Andrey Vasiliev, Hua Pei, X. Huang, A. Kechechyan, S. K. Tripathy, X. Dong, D. Kapukchyan, A. Hamed, T. G. Dedovich, G. Igo, M. Kocmanek, Jay Roberts, D. P. Kikola, Roli Esha, A. H. Tang, B. Stringfellow, Vipul Bairathi, Zhigang Xiao, T. Huang, K. Jiang, X.G. Li, Zongye Zhang, Yunpeng Liu, Derek Anderson, N. G. Minaev, Janet Elizabeth Seger, J. Porter, Pradip Kumar Sahu, E. P. Sichtermann, J. Bouchet, L. Krauth, Jie Zhao, T. Lin, S. Horvat, K. Poniatowska, Giacomo Contin, C. Zhou, K. Meehan, I. Bunzarov, H. W. Ke, M. Calderon De La Barca Sanchez, A. I. Hamad, Chi Yang, Y. Panebratsev, D. Grosnick, T. Nonaka, Z. H. Khan, Y. Guo, I. G. Bordyuzhin, Lisa, Yanjun Wu, P. Seyboth, J. H. Thomas, S. Mizuno, J. Rusnak, Arka Chatterjee, Xiangming Sun, K. D. Landry, J. Butterworth, Nihar Sahoo, X. C. Chen, W. Zha, D. N. Svirida, Wei Xie, L. P. Zhou, S. H. Zhang, Anju Bhasin, T. Ullrich, R. Lacey, A. F. Kraishan, S. B. Nurushev, P. Bhattarai, G. S. Averichev, Isaac Upsal, Sedigheh Jowzaee, Y. F. Xu, M. K. Mustafa, L. Ruan, S. Fazio, I. K. Yoo, F. Videbæk, G. Webb, Y. Li, S. Singha, Q. H. Xu, Anthony Robert Timmins, Adam Ryszard Kisiel, M. Sergeeva, T. Todoroki, A. Aparin, T. Niida, A. Lebedev, Samuel Heppelmann, J. Xu, Sukalyan Chattopadhyay, H. J. Crawford, Leszek Adamczyk, Jongmin Lee, Z. Shi, R. L. Ray, A. A. Derevschikov, Tetsuro Sugiura, R. Ma, M. Tokarev, Yang Yang, A. Harlenderova, W. Guryn, Y. Pandit, N. Schmitz, E. Shahaliev, J. R. Adams, W. Solyst, Siwei Luo, P. Federic, P. Chaloupka, R. Witt, S. Mioduszewski, C-Q. Li, Z. J. Xu, M. J. Rehbein, Christina Markert, Y. J. Sun, C. Dilks, Peter Q. Liu, J. Kvapil, Z. W. Miller, L. Yi, M. Saur, O. D. Tsai, Z. Feng, J. Fedorisin, T. Ljubicic, D. Smirnov, O. Rusnakova, H. S. Matis, J. Bryslawskyj, S. Trentalange, Madan M. Aggarwal, John Z. H. Zhang, I. G. Alekseev, P. Federicova, C. E. Flores, E. G. Judd, Xiaofeng Luo, Nilay Shah, J. C. Mei, N. K. Pruthi, K. Kauder, T. D. S. Stanislaus, M. M. Mondal, Niseem Magdy, H. Caines, Chong Kim, B. Huang, Guo-Liang Ma, M. Lomnitz, Prithwish Tribedy, B. K. Srivastava, L. K. Kosarzewski, W. W. Jacobs, G. Eppley, Fuqiang Wang, W. Q. Shen, D. Tlusty, H. H. Wieman, J. Thäder, D. K. Mishra, Bedangadas Mohanty, J. Pluta, A. S. Hirsch, P. Kravtsov, H. G. Ritter, N. Chankova-Bunzarova, W. Li, Arabinda Behera, P. Sorensen, J. Lauret, Jiangyong Jia, A. M. Schmah, Xiang Sun, M. R. Girard, J. D. Roth, Rene Bellwied, N. Yu, J. Lidrych, Joseph Kwasizur, H. Liu, R. E. Tribble, Kejun Kang, L. V. Nogach, L. Didenko, I. Chakaberia, D. Kalinkin, J. C. Dunlop, L. Wen, R. Lednicky, L. Kochenda, T. Tarnowsky, Y. Wang, Rafal Sikora, Sumit R. Das, G. Van Nieuwenhuizen, J. C. Webb, Y. Fisyak, Lin Ma, M. Shao, G. Van Buren, K. Oh, R. Seto, Yinina Ma, G. Wang, Sevil Salur, Zubayer Ahammed, A. Vossen, S. S. Shi, G. Agakishiev, D. S. Gunarathne, D. Cebra, A. Taranenko, Zhanwen Zhu, S. Esumi, S. Kabana, Q. Y. Shou, Jaroslav Bielcik, R. Pak, M. J. Skoby, L. Fulek, O. V. Rogachevskiy, A. Quintero, M. Zyzak, Vitaly Okorokov, Bernd Surrow, N. Elsey, H. Z. Huang, S. Vokal, W. B. Schmidke, C. A. Gagliardi, J. H. Chen, D. A. Morozov, N.N. Ajitanand, B. J. Summa, J. B. Zhang, J. E. Draper, S. Ramachandran, O. Eyser, Guannan Xie, Xuan Zhang, R. Aoyama, Hanna Paulina Zbroszczyk, R. Reed, J. M. Nelson, W. J. Llope, Alexander Jentsch, A. Attri, and P. Huo
Subjects: Quantum chromodynamics, Physics, Proton, 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, 01 natural sciences, Pion, Antiproton, 0103 physical sciences, High Energy Physics::Experiment, Impact parameter, Atomic physics, Nuclear Experiment, 010306 general physics, Jet quenching, Energy (signal processing)
Abstract: We report measurements of the nuclear modification factor R_{CP} for charged hadrons as well as identified π^{+(-)}, K^{+(-)}, and p(p[over ¯]) for Au+Au collision energies of sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV. We observe a clear high-p_{T} net suppression in central collisions at 62.4 GeV for charged hadrons which evolves smoothly to a large net enhancement at lower energies. This trend is driven by the evolution of the pion spectra but is also very similar for the kaon spectra. While the magnitude of the proton R_{CP} at high p_{T} does depend on the collision energy, neither the proton nor the antiproton R_{CP} at high p_{T} exhibit net suppression at any energy. A study of how the binary collision-scaled high-p_{T} yield evolves with centrality reveals a nonmonotonic shape that is consistent with the idea that jet quenching is increasing faster than the combined phenomena that lead to enhancement.
Published: 2018

42. Measurement of the HΛ3 lifetime in Au+Au collisions at the BNL Relativistic Heavy Ion Collider

Author: Q. H. Xu, J. W. Harris, F. Videbæk, G. Webb, Sukalyan Chattopadhyay, T. Kollegger, S. Mizuno, Z. Feng, J. Xu, M. Lomnitz, D. Kalinkin, W. J. Llope, C. Zhou, D. L. Olvitt, E. P. Sichtermann, S. Heppelmann, B. J. Summa, P. Bhattarai, F. Liu, Miroslav Simko, N. Kulathunga, N. Xu, Guo-Liang Ma, P. Filip, Li Yi, P. Sorensen, Y. F. Wu, Mariusz Przybycien, X. G. Luo, Alexander Jentsch, K. Poniatowska, A. S. Hirsch, Siwei Luo, P. Kravtsov, A. M. Schmah, G. D. Westfall, Dmitry Smirnov, G. Eppley, S. Das, A. H. Tang, N. Magdy, Peng Huo, C-Q. Li, A. Attri, Giacomo Contin, A. Gupta, Bedangadas Mohanty, S. Ramachandran, O. Eyser, Joseph Kwasizur, A. Harlenderova, Md. Nasim, R. D. Majka, R. Witt, J. Alford, I. Bunzarov, D. Kapukchyan, J. Pluta, J. M. Campbell, M. Zyzak, J. D. Brandenburg, Guannan Xie, Xuan Zhang, J. L. Drachenberg, Tetsuro Sugiura, Zebo Tang, W. Guryn, N. Chankova-Bunzarova, Y. J. Sun, Jiangyong Jia, R. Lacey, S. Mioduszewski, M. J. Rehbein, Christina Markert, P. Federicova, W. Li, X. C. Chen, T. Ullrich, M. Shao, G. Van Buren, P. Chaloupka, Ting Lin, J. Schambach, C. Dilks, Anju Bhasin, J. D. Roth, D. N. Brown, G. J. van Nieuwenhuizen, Hanna Paulina Zbroszczyk, J. Bryslawskyj, A. K. Bhati, Rene Bellwied, L. Didenko, T. G. Dedovich, D. Keane, Prithwish Tribedy, B. K. Srivastava, O. Rusnakova, S. Kabana, K. Kang, T. Niida, M. Sergeeva, S. S. Shi, R. E. Tribble, H. Z. Huang, Wei Xie, M. K. Mustafa, S. Vokal, J. Rusnak, A. F. Kraishan, L. Ruan, S. Trentalange, A. Lebedev, I. K. Yoo, Z. Shi, Y. Fisyak, Lin Ma, K. Oh, A. Aparin, Olga Evdokimov, Barbara Antonina Trzeciak, Anthony Robert Timmins, J. Fujita, Jize Zhao, H. S. Matis, L. K. Kosarzewski, W. W. Jacobs, H. Liu, L. G. Efimov, T. K. Nayak, J. Lauret, Abdel Nasser Tawfik, R. Reed, J. Fedorisin, K. N. Barish, M. Saur, P. V. Shanmuganathan, Jay Roberts, C. Perkins, T. Todoroki, Y. Li, O. D. Tsai, Chong Kim, J. M. Nelson, Roli Esha, M. M. Mondal, C. E. Flores, E. G. Judd, Y. Pandit, A. V. Brandin, Muhammad Usman Ashraf, R. S. Longacre, Daniel Nemes, Adam Ryszard Kisiel, H. J. Crawford, J. K. Adkins, S. Horvat, T. Tarnowsky, Benjamin Schweid, T. J. Humanic, H. G. Ritter, W. Q. Shen, N. Schmitz, D. Arkhipkin, B. S. Page, K. Krueger, Avishek Chatterjee, A. Hamed, Sergey Voloshin, Michal Sumbera, L. C. Bland, P. Seyboth, D. P. Kikola, E. Shahaliev, Z. Chang, R. Fatemi, L. He, R. Lednicky, L. Kochenda, P. Federic, Y. G. Ma, B. Stringfellow, A. A. P. Suaide, K. Jiang, M. Calderon De La Barca Sanchez, A. I. Hamad, Y. Wang, Sedigheh Jowzaee, Rafal Sikora, Shangfeng Yang, J. H. Chen, Zhigang Xiao, David Stewart, T. Huang, Sevil Salur, G. Igo, S. Fazio, Zongye Zhang, Yunpeng Liu, Derek Anderson, M. Kocmanek, Peng Liu, N. G. Minaev, I. G. Bordyuzhin, Leszek Adamczyk, B. Pawlik, Y. Panebratsev, D. Grosnick, M. J. Skoby, Frank Jm Geurts, S. W. Wissink, Y. Zhang, M. R. Girard, J. C. Dunlop, L. Wen, Zubayer Ahammed, J. Bouchet, L. Krauth, Vipul Bairathi, W. Zha, B. Huang, I. Upsal, Jana Bielcikova, J. Thäder, J. R. Adams, A. A. Derevschikov, Y. F. Xu, M. Posik, D. A. Morozov, Z. W. Miller, R. Aoyama, K. D. Landry, K. Kauder, A. Taranenko, J. E. Draper, J. L. Romero, W. Christie, E. C. Aschenauer, S. Margetis, Subhash Singha, Andrey Vasiliev, Irakli Chakaberia, Z. Z. Xu, Arabinda Behera, S. Zhang, Dukhishyam Mallick, H. M. Spinka, Nikita Smirnov, J. Y. Zhang, E. Finch, D. G. Underwood, X. Dong, K. Meehan, N. Yu, Xuedong Bai, M. Cherney, Xiangming Sun, D. N. Svirida, Q. Y. Shou, L. V. Nogach, J. Porter, Lokesh Kumar, Jian Deng, Jindrich Lidrych, J. Putschke, Xiaofeng Zhu, Hua Pei, S. K. Tripathy, N. K. Pruthi, X. M. Sun, Ivan Kisel, R. Pak, G. Wang, J. Cheng, A. Ogawa, X.G. Li, Y. Guo, Jongmin Lee, C. Yang, R. Seto, R. L. Ray, R. Ma, G. Agakishiev, D. S. Gunarathne, N. Herrmann, T. Ljubicic, Janet Elizabeth Seger, J. H. Thomas, H. Caines, L. P. Zhou, S. B. Nurushev, A. Quintero, H. W. Ke, L. Fulek, I. M. Deppner, G. S. Averichev, D. Cebra, Zhanwen Zhu, Y. Yang, J. Kvapil, Justin Ewigleben, Nilay Shah, A. Gibson, C. Zhong, K. Yip, Vitaly Okorokov, Z. Ye, D. Tlusty, Bernd Surrow, Maowu Nie, X. Huang, A. Kechechyan, Niladribihari Sahoo, Pradip Kumar Sahu, T. Nonaka, Z. H. Khan, J. M. Butterworth, N. Elsey, J. Engelage, N. N. Ajitanand, G. Nigmatkulov, J. C. Webb, D. Mayes, J. M. Landgraf, M. Tokarev, M. Strikhanov, W. Solyst, T. D. S. Stanislaus, H. H. Wieman, W. B. Schmidke, G. Odyniec, J. Sandweiss, I. G. Alekseev, M. A. Lisa, J. C. Mei, C. A. Gagliardi, Jaroslav Bielcik, Jie Zhang, O. V. Rogachevskiy, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, A. Vossen, S. Esumi, and Qi Yang
Subjects: Nuclear physics, Physics, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, 010306 general physics, Hypernucleus, Relativistic Heavy Ion Collider, 01 natural sciences, Hypertriton
Abstract: Author(s): Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Ajitanand, NN; Alekseev, I; Alford, J; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Attri, A; Averichev, GS; Bai, X; Bairathi, V; Barish, K; Behera, A; Bellwied, R; Bhasin, A; Bhati, AK; Bhattarai, P; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Bouchet, J; Brandenburg, JD; Brandin, AV; Brown, D; Bryslawskyj, J; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, X; Chen, X; Chen, JH; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; Dedovich, TG; Deng, J; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Draper, JE; Dunlop, JC; Efimov, LG; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Federicova, P; Fedorisin, J; Feng, Z; Filip, P; Finch, E; Fisyak, Y; Flores, CE; Fujita, J | Abstract: An improved measurement of the HΛ3 lifetime is presented. In this paper, the mesonic decay modes HΛ3→He3 + π- and HΛ3→d+p+π- are used to reconstruct the HΛ3 from Au+Au collision data collected by the STAR collaboration at Relativistic Heavy Ion Collider (RHIC). A minimum χ2 estimation is used to determine the lifetime of τ=142-21+24(stat.)±29(syst.) ps. This lifetime is about 50% shorter than the lifetime τ=263±2 ps of a free Λ, indicating strong hyperon-nucleon interaction in the hypernucleus system. The branching ratios of the mesonic decay channels are also determined to satisfy B.R.(He3+π-)/(B.R.(He3+π-)+B.R.(d+p+π-))=0.32±0.05(stat.)±0.08(syst.). Our ratio result favors the assignment J(HΛ3)=12 over J(HΛ3)=32. These measurements will help to constrain models of hyperon-baryon interactions.
Published: 2018

43. Transverse spin-dependent azimuthal correlations of charged pion pairs measured in + Collisions at

Author: 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, A. Attri, G.S. Averichev, V. Bairathi, K. Barish, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, T.G. Dedovich, J. Deng, I.M. Deppner, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.E. Draper, 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, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, J. Fujita, L. Fulek, C.A. Gagliardi, F. Geurts, A. Gibson, M. Girard, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, A. Hirsch, S. Horvat, X. Huang, H.Z. Huang, T. Huang, B. 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, Z. Khan, D.P. Kikoła, C. Kim, I. Kisel, A. Kisiel, L. Kochenda, M. Kocmanek, T. Kollegger, L.K. Kosarzewski, A.F. Kraishan, L. Krauth, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, W. Li, C. Li, X. Li, Y. Li, J. Lidrych, T. Lin, M.A. Lisa, Y. Liu, H. Liu, F. Liu, P. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, S. Luo, L. Ma, Y.G. Ma, G.L. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, D. Mayes, K. Meehan, J.C. Mei, Z.W. Miller, N.G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, Md. Nasim, T.K. Nayak, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt, B.S. Page, R. Pak, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, J. Pluta, K. Poniatowska, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, A. Quintero, S. Ramachandran, R.L. Ray, R. Reed, M.J. Rehbein, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.D. Roth, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, M. Saur, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, W.Q. Shen, S.S. Shi, Z. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, N. Smirnov, D. 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, X.M. Sun, Y. Sun, B. Surrow, D.N. Svirida, Z. Tang, A.H. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. Thäder, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, B. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, A.N. Vasiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, G. Webb, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, N. Xu, Y.F. Xu, Q.H. Xu, Z. Xu, Y. Yang, C. Yang, S. Yang, Q. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, H. Zbroszczyk, W. Zha, J.B. Zhang, J. Zhang, S. Zhang, Z. Zhang, Y. Zhang, L. Zhang, X.P. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, X. Zhu, Z. Zhu, and M. Zyzak
Subjects: Physics, Quark, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Nuclear Theory, Parton, Spin structure, Polarization (waves), Deep inelastic scattering, 01 natural sciences, Pion, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Nucleon, Nuclear Experiment
Abstract: The transversity distribution, which describes transversely polarized quarks in transversely polarized nucleons, is a fundamental component of the spin structure of the nucleon, and is only loosely constrained by global fits to existing semi-inclusive deep inelastic scattering (SIDIS) data. In transversely polarized p↑+p collisions it can be accessed using transverse polarization dependent fragmentation functions which give rise to azimuthal correlations between the polarization of the struck parton and the final state scalar mesons.This letter reports on spin dependent di-hadron correlations measured by the STAR experiment. The new dataset corresponds to 25 pb$^{−1}$ integrated luminosity of p↑+p collisions at s=500 GeV, an increase of more than a factor of ten compared to our previous measurement at s=200 GeV. Non-zero asymmetries sensitive to transversity are observed at a Q2 of several hundred GeV and are found to be consistent with the former measurement and a model calculation. We expect that these data will enable an extraction of transversity with comparable precision to current SIDIS datasets but at much higher momentum transfers where subleading effects are suppressed.
Published: 2018

44. Beam-Energy Dependence of Directed Flow ofΛ,Λ¯,K±,Ks0, andϕinAu+AuCollisions

Author: J. M. Nelson, Arka Chatterjee, W. J. Llope, Muhammad Usman Ashraf, T. J. Humanic, N. Kulathunga, N. Xu, P. Filip, M. K. Mustafa, Sergey Voloshin, Y. Li, S. Singha, Xiangming Sun, Abdel Nasser Tawfik, Alexander Jentsch, C-Q. Li, P. Pile, G. D. Westfall, D. L. Olvitt, K. Jiang, M. J. Rehbein, Christina Markert, D. Smirnov, O. Rusnakova, A. Attri, P. Federic, H. S. Matis, Hao Qiu, Yanjun Wu, Jun Deng, P. Huo, B. S. Page, J. Y. Zhang, N. Yu, D. P. Kikola, L. K. Kosarzewski, Kejun Kang, L. V. Nogach, B. Stringfellow, Sumit R. Das, G. Van Nieuwenhuizen, W. W. Jacobs, Joseph Kwasizur, N. K. Pruthi, David Brown, T. Kollegger, J. Lauret, R. Lednicky, L. Kochenda, M. Sergeeva, F. Liu, Miroslav Simko, Mariusz Przybycien, Nasim, M. Shao, G. Van Buren, P. Seyboth, G. Eppley, T. Tarnowsky, S. Mizuno, S. S. Shi, J. M. Campbell, K. Kauder, T. G. Dedovich, F. Videbæk, G. Webb, Siwei Luo, J. Pluta, Leszek Adamczyk, Sukalyan Chattopadhyay, Jorn Henning Putschke, A. V. Brandin, J. Rusnak, D. Kapukchyan, N. Chankova-Bunzarova, W. Li, A. F. Kraishan, L. Ruan, J. D. Roth, R. D. Majka, Z. W. Miller, N.N. Ajitanand, S. Heppelmann, T. Todoroki, B. J. Summa, M. R. Girard, Guannan Xie, J. C. Webb, Xuan Zhang, Arabinda Behera, Rene Bellwied, R. Aoyama, R. Witt, R. E. Tribble, J. Schambach, R. Seto, Hanna Paulina Zbroszczyk, Madan M. Aggarwal, J. W. Harris, J. Jia, D. Tlusty, S. Mioduszewski, W. Christie, Z. Feng, Xiaofeng Zhu, T. Nonaka, Wei Xie, A. Aparin, Xiaofeng Luo, Yinina Ma, Zhigang Xiao, T. Huang, Yunpeng Liu, Derek Anderson, Roli Esha, P. Bhattarai, Isaac Upsal, Vipul Bairathi, James Brandenburg, J. Fujita, Guo-Liang Ma, R. Reed, Jie Zhao, T. Lin, S. Horvat, K. N. Barish, N. G. Minaev, Andrey Vasiliev, A. Ogawa, S. B. Nurushev, Mukesh Sharma, G. Wang, J. B. Zhang, Y. Pandit, Fuqiang Wang, S. Fazio, Xuliang Chen, Michal Sumbera, A. A. P. Suaide, J. E. Draper, X.G. Li, Prithwish Tribedy, B. K. Srivastava, Zongye Zhang, Y. Guo, I. G. Bordyuzhin, M. J. Skoby, N. Schmitz, D. K. Mishra, E. Shahaliev, A. H. Tang, L. E. Dunkelberger, A. S. Hirsch, I. Bunzarov, Z. H. Khan, W. Zha, Janet Elizabeth Seger, P. Kravtsov, A. K. Bhati, A. M. Schmah, L. Fulek, R. Lacey, S. Ramachandran, B.R. Schweid, Tetsuro Sugiura, Y. J. Sun, M. Calderon De La Barca Sanchez, A. I. Hamad, Anju Bhasin, A. A. Derevschikov, Jana Bielcikova, O. Eyser, Sedigheh Jowzaee, D. Keane, J. L. Romero, C. Dilks, S. W. Wissink, J. Thäder, D. Kalinkin, J. Engelage, Y. Zhang, T. Niida, A. Lebedev, Nikolai Smirnov, G. Nigmatkulov, J. C. Dunlop, L. Wen, L. Yi, Y. Wang, Y. Fisyak, P. Sorensen, Lin Ma, D. G. Underwood, E. Finch, Z. Shi, K. Oh, M. Saur, Peter Q. Liu, J. Kvapil, Xuedong Bai, Q. Yang, L. G. Efimov, J. M. Landgraf, Zubayer Ahammed, Nilay Shah, L. Didenko, I. Chakaberia, Chong Kim, Z. Ye, A. Vossen, M. Strikhanov, J. Cheng, T. K. Nayak, K. Yip, H. G. Ritter, Bedangadas Mohanty, J. Sandweiss, H. Z. Huang, S. Vokal, L. C. De Silva, Maowu Nie, Q. Y. Shou, X. Huang, M. Kocmanek, A. Harlenderova, Rafal Sikora, A. Kechechyan, R. Pak, J. L. Drachenberg, Olga Evdokimov, Barbara Antonina Trzeciak, W. Guryn, L. C. Bland, Pradip Kumar Sahu, Y. Panebratsev, D. Grosnick, J. Fedorisin, M. M. Mondal, S. Esumi, Jay Roberts, Anik Gupta, J. H. Chen, Chi Yang, D. N. Svirida, Jaroslav Bielcik, I. K. Yoo, M. Tokarev, Yang Yang, H. W. Ke, Frank Jm Geurts, D. A. Morozov, O. V. Rogachevskiy, A. Quintero, C. E. Flores, E. G. Judd, M. Zyzak, T. D. S. Stanislaus, H. H. Wieman, Vitaly Okorokov, Bernd Surrow, N. Elsey, C. Zhou, W. B. Schmidke, C. A. Gagliardi, K. Meehan, O. D. Tsai, A. Sharma, L. Song, W. Q. Shen, Xiang Sun, Zebo Tang, H. Liu, D. Garand, Sevil Salur, C. Perkins, R. S. Longacre, P. V. Shanmuganathan, D. Mallick, G. Igo, J. Bouchet, L. Krauth, Jongmin Lee, R. L. Ray, K. D. Landry, R. Ma, J. Butterworth, Y. F. Xu, Q. H. Xu, T. Ljubicic, J. Xu, Niseem Magdy, H. Caines, M. Lomnitz, P. Federicova, B. Huang, Justin Ewigleben, G. Odyniec, C. Zhong, E. C. Aschenauer, S. Margetis, X. Dong, E. P. Sichtermann, T. Ullrich, J. R. Adams, W. Solyst, J. Lidrych, G. Agakishiev, D. S. Gunarathne, D. Cebra, A. Taranenko, Zhanwen Zhu, S. Kabana, I. G. Alekseev, M. A. Lisa, J. C. Mei, Z. Chang, Shize Yang, M. Posik, H. M. Spinka, J. K. Adkins, R. Fatemi, L. He, J. H. Thomas, K. Krueger, L. P. Zhou, I. Kisel, M. Cherney, Lokesh Kumar, Hua Pei, S. K. Tripathy, K. Poniatowska, S. K. Gupta, Giacomo Contin, G. S. Averichev, Nihar Sahoo, J. Porter, Anthony Robert Timmins, Adam Ryszard Kisiel, H. J. Crawford, B. Pawlik, A. Gibson, S. Zhang, P. Chaloupka, Z. J. Xu, S. Trentalange, D. Arkhipkin, and A. Hamed
Subjects: Quantum chromodynamics, Quark, Physics, 010308 nuclear & particles physics, Elliptic flow, Hadron, General Physics and Astronomy, Lambda, 01 natural sciences, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Sum rule in quantum mechanics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: Rapidity-odd directed-flow measurements at midrapidity are presented for Λ, Λ[over ¯], K^{±}, K_{s}^{0}, and ϕ at sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV in Au+Au collisions recorded by the Solenoidal Tracker detector at the Relativistic Heavy Ion Collider. These measurements greatly expand the scope of data available to constrain models with differing prescriptions for the equation of state of quantum chromodynamics. Results show good sensitivity for testing a picture where flow is assumed to be imposed before hadron formation and the observed particles are assumed to form via coalescence of constituent quarks. The pattern of departure from a coalescence-inspired sum rule can be a valuable new tool for probing the collision dynamics.
Published: 2018

45. Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at s=500 GeV

Author: J. M. Campbell, Jaroslav Bielcik, M. Calderon De La Barca Sanchez, A. I. Hamad, Sedigheh Jowzaee, G. Eppley, W. Christie, I. G. Alekseev, Maksym Zyzak, O. V. Rogachevskiy, M. A. Lisa, A. Quintero, J. C. Mei, T. G. Dedovich, J. Porter, J. C. Webb, J. Pluta, N. Chankova-Bunzarova, W. Li, Ivan Kisel, Andrey Vasiliev, I. K. Yoo, C. E. Flores, E. G. Judd, Anik Gupta, J. Lidrych, R. Seto, Nasim, R. Witt, Vitaly Okorokov, Jian Deng, S. Mioduszewski, D. G. Underwood, J. D. Roth, Rene Bellwied, Janet Elizabeth Seger, G. Agakishiev, D. S. Gunarathne, O. D. Tsai, J. Y. Zhang, Bernd Surrow, Frank Jm Geurts, Prithwish Tribedy, Q. H. Xu, B. K. Srivastava, Z. Ye, D. Cebra, N. Elsey, Jana Bielcikova, A. Taranenko, N. Yu, D. Mayes, J. K. Adkins, K. Kauder, Maowu Nie, W. Q. Shen, Xiang Sun, J. H. Thomas, X. Huang, A. Kechechyan, Kejun Kang, L. V. Nogach, Zhanwen Zhu, S. Kabana, W. B. Schmidke, J. C. Dunlop, L. Wen, C. Zhou, P. Sorensen, J. Xu, C. A. Gagliardi, M. R. Girard, L. P. Zhou, Sumit R. Das, G. Van Nieuwenhuizen, H. Liu, David Stewart, Justin Ewigleben, G. Odyniec, J. Cheng, Pradip Kumar Sahu, R. Fatemi, L. He, K. Krueger, Benjamin Schweid, S. B. Nurushev, D. Arkhipkin, Zubayer Ahammed, A. Hamed, K. Meehan, Q. Yang, Sevil Salur, R. E. Tribble, J. W. Harris, M. J. Skoby, Joseph Kwasizur, D. Kapukchyan, Z. H. Khan, N. N. Ajitanand, Q. Y. Shou, Jorn Henning Putschke, Xiao-yan Li, A. V. Brandin, L. Fulek, R. Pak, J. L. Drachenberg, L. Didenko, I. Chakaberia, Thorsten Sven Kollegger, M. Cherney, M. Shao, G. Van Buren, Olga Evdokimov, Barbara Antonina Trzeciak, Xiangming Sun, J. Bryslawskyj, Roli Esha, M. Tokarev, James Brandenburg, J. Engelage, J. Fujita, G. S. Averichev, L. C. Bland, G. Nigmatkulov, Daniel Nemes, Jie Zhao, T. Lin, S. Horvat, Lokesh Kumar, J. R. Adams, Hua Pei, S. K. Tripathy, J. L. Romero, Vipul Bairathi, S. Heppelmann, A. K. Bhati, D. Keane, W. Solyst, Jay Roberts, S. S. Shi, K. N. Barish, B. J. Summa, A. H. Tang, E. Finch, Nikolai Smirnov, H. W. Ke, Z. Chang, Xuedong Bai, M. Simko, P. Federicova, J. M. Landgraf, Shize Yang, T. D. S. Stanislaus, K. Poniatowska, I. Bunzarov, J. B. Zhang, L. G. Efimov, Zebo Tang, B. Huang, Chi Yang, Giacomo Contin, M. Strikhanov, H. H. Wieman, P. Chaloupka, W. Zha, J. E. Draper, T. Nonaka, T. K. Nayak, N. K. Pruthi, P. Bhattarai, R. S. Longacre, M. Posik, Isaac Upsal, Arabinda Behera, Z. J. Xu, M. Kocmanek, Wei Xie, S. Trentalange, D. N. Svirida, H. M. Spinka, S. Ramachandran, O. Eyser, Nihar Sahoo, X. C. Chen, A. Aparin, Y. Panebratsev, Y. Pandit, C. Perkins, J. Sandweiss, K. Yip, P. V. Shanmuganathan, D. Grosnick, S. Fazio, D. Mallick, B. Pawlik, N. Schmitz, A. Gibson, E. Shahaliev, H. Z. Huang, S. Vokal, Peng Huo, A. Harlenderova, Anthony Robert Timmins, Adam Ryszard Kisiel, G. Igo, S. Zhang, A. A. Derevschikov, L. Yi, S. Esumi, M. Saur, J. Bouchet, L. Krauth, H. J. Crawford, Chong Kim, W. Guryn, R. Lacey, J. H. Chen, K. D. Landry, H. G. Ritter, J. Butterworth, D. A. Morozov, Tetsuro Sugiura, J. Thäder, Rafal Sikora, Y. J. Sun, Y. F. Xu, C. Dilks, T. J. Humanic, Zongye Zhang, Abdel Nasser Tawfik, J. Fedorisin, M. M. Mondal, Y. Guo, I. G. Bordyuzhin, B. S. Page, D. P. Kikola, B. Stringfellow, J. Kvapil, Nilay Shah, Xiaofeng Zhu, A. Ogawa, C-Q. Li, M. J. Rehbein, Christina Markert, D. Smirnov, O. Rusnakova, H. S. Matis, L. K. Kosarzewski, W. W. Jacobs, J. Lauret, R. Lednicky, L. Kochenda, T. Tarnowsky, I. M. Deppner, David Brown, F. Liu, Mariusz Przybycien, Y. Yang, R. D. Majka, J. Schambach, Anju Bhasin, T. Niida, A. Lebedev, Z. Shi, N. Kulathunga, N. Xu, P. Filip, Xiaofeng Luo, Guannan Xie, Xuan Zhang, R. Aoyama, Guo-Liang Ma, Hanna Paulina Zbroszczyk, G. D. Westfall, A. S. Hirsch, P. Kravtsov, R. Reed, A. M. Schmah, Bedangadas Mohanty, Michal Sumbera, S. W. Wissink, Y. Zhang, S. Mizuno, D. L. Olvitt, J. Rusnak, A. F. Kraishan, Arka Chatterjee, L. Ruan, Yu-Gang Ma, Muhammad Usman Ashraf, M. K. Mustafa, T. Todoroki, J. M. Nelson, W. J. Llope, Sergey Voloshin, Y. Li, S. Singha, Alexandre Alarcon Do Passo Suaide, Alexander Jentsch, A. Attri, K. Jiang, Y. Wang, Y. Fisyak, Zhigang Xiao, P. Liu, Yanjun Wu, T. Huang, F. Videbæk, Lin Ma, K. Oh, G. Webb, Yunpeng Liu, Sukalyan Chattopadhyay, M. Sergeeva, Derek Anderson, Siwei Luo, N. G. Minaev, P. Seyboth, Z. Feng, Jiangyong Jia, Leszek Adamczyk, P. Federic, Z. W. Miller, D. Tlusty, G. Wang, C. Zhong, E. C. Aschenauer, S. Margetis, X. Dong, E. P. Sichtermann, T. Ullrich, Jongmin Lee, R. L. Ray, R. Ma, Madan M. Aggarwal, T. Ljubicic, Fuqiang Wang, D. K. Mishra, Niseem Magdy, H. Caines, M. Lomnitz, D. Kalinkin, A. Vossen, and N. Herrmann
Subjects: Physics, Nuclear physics, Particle physics, Pion, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, Fragmentation function, Beam polarization, 010306 general physics, 01 natural sciences
Abstract: Author(s): AdamczyK, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Ajitanand, NN; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A; Arkhipkin, D; Aschenauer, EC; Ashraf, MU; Attri, A; Averichev, GS; Bai, X; Bairathi, V; Barish, K; Behera, A; Bellwied, R; Bhasin, A; Bhati, AK; Bhattarai, P; BielciK, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Bouchet, J; Brandenburg, JD; Brandin, AV; Brown, D; Bryslawskyj, J; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, X; Chen, X; Chen, JH; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; Dedovich, TG; Deng, J; Deppner, IM; Derevschikov, AA; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Draper, JE; Dunlop, JC; Efimov, LG; Elsey, N; Engelage, J; Eppley, G; Esha, R; Esumi, S; Evdokimov, O; Ewigleben, J; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Federicova, P; Fedorisin, J; Feng, Z; Filip, P; Finch, E; FisyaK, Y; Flores, CE; Fujita, J; FuleK, L | Abstract: We report the first measurements of transverse single-spin asymmetries for inclusive jet and jet+π± production at midrapidity from transversely polarized proton-proton collisions at s=500 GeV. The data were collected in 2011 with the STAR detector sampled from 23 pb-1 integrated luminosity with an average beam polarization of 53%. Asymmetries are reported for jets with transverse momenta 6
Published: 2018

46. Beam Energy Dependence of Jet-Quenching Effects in Au+Au Collisions at sNN =7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV

Author: 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, A, Attri, G S, Averichev, X, Bai, V, Bairathi, K, Barish, A, Behera, R, Bellwied, A, Bhasin, A K, Bhati, P, Bhattarai, J, Bielcik, J, Bielcikova, L C, Bland, I G, Bordyuzhin, J, Bouchet, J D, Brandenburg, A V, Brandin, D, Brown, I, Bunzarov, J, Butterworth, H, Caines, M, Calderón de la Barca Sánchez, J M, Campbell, D, Cebra, I, Chakaberia, P, Chaloupka, Z, 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, L C, De Silva, R R, Debbe, T G, Dedovich, J, Deng, A A, Derevschikov, L, Didenko, C, Dilks, X, Dong, J L, Drachenberg, J E, Draper, L E, Dunkelberger, 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, Z, Feng, P, Filip, E, Finch, Y, Fisyak, C E, Flores, J, Fujita, L, Fulek, C A, Gagliardi, D, Garand, F, Geurts, A, Gibson, M, Girard, D, Grosnick, D S, Gunarathne, Y, Guo, S, Gupta, A, Gupta, W, Guryn, A I, Hamad, A, Hamed, A, Harlenderova, J W, Harris, L, He, S, Heppelmann, A, Hirsch, G W, Hoffmann, S, Horvat, X, Huang, H Z, Huang, T, Huang, B, 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, Z, Khan, D P, Kikoła, C, Kim, I, Kisel, A, Kisiel, L, Kochenda, M, Kocmanek, T, Kollegger, L K, Kosarzewski, A F, Kraishan, L, Krauth, P, Kravtsov, K, Krueger, N, Kulathunga, L, Kumar, J, Kvapil, J H, Kwasizur, R, Lacey, J M, Landgraf, K D, Landry, J, Lauret, A, Lebedev, R, Lednicky, J H, Lee, C, Li, W, Li, Y, Li, X, Li, J, Lidrych, T, Lin, M A, Lisa, P, Liu, F, Liu, H, Liu, Y, Liu, T, Ljubicic, W J, Llope, M, Lomnitz, R S, Longacre, X, Luo, S, Luo, G L, Ma, L, Ma, Y G, Ma, R, Ma, N, Magdy, R, Majka, D, Mallick, S, Margetis, C, Markert, H S, Matis, K, Meehan, J C, Mei, Z W, Miller, N G, Minaev, S, Mioduszewski, D, Mishra, S, Mizuno, B, Mohanty, M M, Mondal, D A, Morozov, M K, Mustafa, Md, Nasim, T K, Nayak, J M, Nelson, M, Nie, G, Nigmatkulov, T, Niida, L V, Nogach, T, Nonaka, S B, Nurushev, G, Odyniec, A, Ogawa, K, Oh, V A, Okorokov, D, Olvitt, B S, Page, R, Pak, Y, Pandit, Y, Panebratsev, B, Pawlik, H, Pei, C, Perkins, P, Pile, J, Pluta, K, Poniatowska, J, Porter, M, Posik, N K, Pruthi, M, Przybycien, J, Putschke, H, Qiu, A, Quintero, S, Ramachandran, R L, Ray, R, Reed, M J, Rehbein, H G, Ritter, J B, Roberts, O V, Rogachevskiy, J L, Romero, J D, Roth, L, Ruan, J, Rusnak, O, Rusnakova, N R, Sahoo, P K, Sahu, S, Salur, J, Sandweiss, E, Sangaline, M, Saur, J, Schambach, A M, Schmah, W B, Schmidke, N, Schmitz, B R, Schweid, J, Seger, M, Sergeeva, R, Seto, P, Seyboth, N, Shah, E, Shahaliev, P V, Shanmuganathan, M, Shao, M K, Sharma, A, Sharma, W Q, Shen, Z, Shi, S S, Shi, Q Y, Shou, E P, Sichtermann, R, Sikora, M, Simko, S, Singha, M J, Skoby, D, Smirnov, N, Smirnov, W, Solyst, L, Song, P, Sorensen, H M, Spinka, B, Srivastava, T D S, Stanislaus, M, Strikhanov, B, Stringfellow, T, Sugiura, M, Sumbera, B, Summa, X M, Sun, Y, Sun, X, Sun, B, Surrow, D N, Svirida, A H, Tang, Z, Tang, A, Taranenko, T, Tarnowsky, A, Tawfik, J, Thäder, J H, Thomas, A R, Timmins, D, Tlusty, T, Todoroki, M, Tokarev, S, Trentalange, R E, Tribble, P, Tribedy, S K, Tripathy, B A, Trzeciak, O D, Tsai, T, Ullrich, D G, Underwood, I, Upsal, G, Van Buren, G, van Nieuwenhuizen, A N, Vasiliev, F, Videbæk, S, Vokal, S A, Voloshin, A, Vossen, F, Wang, Y, Wang, G, Wang, J C, Webb, G, Webb, L, Wen, G D, Westfall, H, Wieman, S W, Wissink, R, Witt, Y, Wu, Z G, Xiao, G, Xie, W, Xie, Z, Xu, N, Xu, Y F, Xu, Q H, Xu, J, Xu, Q, Yang, C, Yang, S, Yang, Y, Yang, Z, Ye, L, Yi, K, Yip, I-K, Yoo, N, Yu, H, Zbroszczyk, W, Zha, X P, Zhang, S, Zhang, J B, Zhang, J, Zhang, Z, Zhang, Y, Zhang, J, Zhao, C, Zhong, L, Zhou, C, Zhou, Z, Zhu, X, Zhu, M, Zyzak, Adamczyk, L., Adams, J. R., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Ajitanand, N. N., 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., Barish, K., Behera, A., 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., De La Barca Sánchez, M. C., Campbell, J. M., Cebra, D., Chakaberia, I., Chaloupka, P., Chang, Z., Chankova-Bunzarova, N., 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., 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., Federicova, P., Fedorisin, J., Feng, Z., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Fujita, J., Fulek, L., Gagliardi, C. A., Garand, D., Geurts, F., Gibson, A., Girard, M., Grosnick, D., Gunarathne, D. S., Guo, Y., Gupta, S., Gupta, A., Guryn, W., Hamad, A. I., Hamed, A., Harlenderova, A., Harris, J. W., He, L., Heppelmann, S., Hirsch, A., Hoffmann, G. W., Horvat, S., Huang, X., Huang, H. Z., Huang, T., Huang, B., Humanic, T. J., Huo, P., Igo, G., Jacobs, W. W., Jentsch, A., Jia, J., Jiang, K., Jowzaee, S., Judd, E. G., Kabana, S., Kalinkin, D., Kang, K., Kapukchyan, D., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Khan, Z., Kikoła, D. P., Kim, C., Kisel, I., Kisiel, A., Kochenda, L., Kocmanek, M., Kollegger, T., Kosarzewski, L. K., Kraishan, A. F., Krauth, L., Kravtsov, P., Krueger, K., Kulathunga, N., Kumar, L., Kvapil, J., Kwasizur, J. H., Lacey, R., Landgraf, J. M., Landry, K. D., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Li, C., Li, W., Li, Y., Li, X., Lidrych, J., Lin, T., Lisa, M. A., Liu, P., Liu, F., Liu, H., Liu, Y., Ljubicic, T., Llope, W. J., Lomnitz, M., Longacre, R. S., Luo, X., Luo, S., Ma, G. L., Ma, L., Ma, Y. G., Ma, R., Magdy, N., Majka, R., Mallick, D., Margetis, S., Markert, C., Matis, H. S., Meehan, K., Mei, J. C., Miller, Z. W., Minaev, N. G., Mioduszewski, S., Mishra, D., Mizuno, S., Mohanty, B., Mondal, M. M., Morozov, D. A., Mustafa, M. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nie, M., Nigmatkulov, G., Niida, T., Nogach, L. V., Nonaka, T., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Okorokov, V. A., Olvitt, D., Page, B. S., Pak, R., Pandit, Y., Panebratsev, Y., Pawlik, B., Pei, H., Perkins, C., Pile, P., Pluta, J., Poniatowska, K., Porter, J., Posik, 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., Salur, S., Sandweiss, J., Sangaline, E., Saur, M., Schambach, J., Schmah, A. M., Schmidke, W. B., Schmitz, N., Schweid, B. R., Seger, J., Sergeeva, M., Seto, R., Seyboth, P., Shah, N., Shahaliev, E., Shanmuganathan, P. V., Shao, M., Sharma, M. K., Sharma, A., Shen, W. Q., Shi, Z., Shi, S. S., 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., Strikhanov, M., Stringfellow, B., Sugiura, T., Sumbera, M., Summa, B., Sun, X. M., Sun, Y., Sun, X., Surrow, B., Svirida, D. N., Tang, A. H., Tang, Z., Taranenko, A., 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., Trzeciak, B. A., Tsai, O. D., Ullrich, T., Underwood, D. G., Upsal, I., Van Buren, G., Van Nieuwenhuizen, G., Vasiliev, A. N., Videbæk, F., Vokal, S., Voloshin, S. A., Vossen, A., Wang, F., Wang, Y., Wang, G., Webb, J. C., Webb, G., Wen, L., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y., Xiao, Z. G., Xie, G., Xie, W., Xu, Z., Xu, N., Xu, Y. F., Xu, Q. H., Xu, J., Yang, Q., Yang, C., Yang, S., Yang, Y., Ye, Z., Yi, L., Yip, K., Yoo, I. -K., Yu, N., Zbroszczyk, H., Zha, W., Zhang, X. P., Zhang, S., Zhang, J. B., Zhang, J., Zhang, Z., Zhang, Y., Zhao, J., Zhong, C., Zhou, L., Zhou, C., Zhu, Z., Zhu, X., and Zyzak, M.
Subjects: jet quenching, RHIC, STAR, nuclear modification factor, heavy ions, heavy ion
Abstract: We report measurements of the nuclear modification factor R_{CP} for charged hadrons as well as identified π^{+(-)}, K^{+(-)}, and p(p[over ¯]) for Au+Au collision energies of sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV. We observe a clear high-p_{T} net suppression in central collisions at 62.4 GeV for charged hadrons which evolves smoothly to a large net enhancement at lower energies. This trend is driven by the evolution of the pion spectra but is also very similar for the kaon spectra. While the magnitude of the proton R_{CP} at high p_{T} does depend on the collision energy, neither the proton nor the antiproton R_{CP} at high p_{T} exhibit net suppression at any energy. A study of how the binary collision-scaled high-p_{T} yield evolves with centrality reveals a nonmonotonic shape that is consistent with the idea that jet quenching is increasing faster than the combined phenomena that lead to enhancement.
Published: 2018

47. Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p ↑ + p collisions at s=500 GeV

Author: 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, A. Attri, G.S. Averichev, V. Bairathi, K. Barish, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, J.D. Brandenburg, A.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, T.G. Dedovich, J. Deng, I.M. Deppner, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.E. Draper, 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, Z. Feng, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, J. Fujita, L. Fulek, C.A. Gagliardi, F. Geurts, A. Gibson, M. Girard, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, A. Hirsch, S. Horvat, X. Huang, H.Z. Huang, T. Huang, B. 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, Z. Khan, D.P. Kikoła, C. Kim, I. Kisel, A. Kisiel, L. Kochenda, M. Kocmanek, T. Kollegger, L.K. Kosarzewski, A.F. Kraishan, L. Krauth, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, W. Li, C. Li, X. Li, Y. Li, J. Lidrych, T. Lin, M.A. Lisa, Y. Liu, H. Liu, F. Liu, P. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, S. Luo, L. Ma, Y.G. Ma, G.L. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, D. Mayes, K. Meehan, J.C. Mei, Z.W. Miller, N.G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, Md. Nasim, T.K. Nayak, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V.A. Okorokov, D. Olvitt, Jr., B.S. Page, R. Pak, Y. Pandit, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, J. Pluta, K. Poniatowska, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, A. Quintero, S. Ramachandran, R.L. Ray, R. Reed, M.J. Rehbein, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.D. Roth, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, M. Saur, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, W.Q. Shen, S.S. Shi, Z. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, S. Singha, M.J. Skoby, N. Smirnov, D. 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, X.M. Sun, Y. Sun, B. Surrow, D.N. Svirida, Z. Tang, A.H. Tang, A. Taranenko, T. Tarnowsky, A. Tawfik, J. Thäder, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, B. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, A.N. Vasiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, G. Webb, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, N. Xu, Y.F. Xu, Q.H. Xu, Z. Xu, Y. Yang, C. Yang, S. Yang, Q. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, H. Zbroszczyk, W. Zha, J.B. Zhang, J. Zhang, S. Zhang, Z. Zhang, Y. Zhang, L. Zhang, X.P. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, X. Zhu, Z. Zhu, M. Zyzak, Adamczyk, L., Adams, J. R., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Ajitanand, N. N., Alekseev, I., Anderson, D. M., Aoyama, R., Aparin, A., Arkhipkin, D., Aschenauer, E. C., Ashraf, M. U., Attri, A., Averichev, G. S., Bairathi, V., Barish, K., Behera, A., 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., Bryslawskyj, J., Bunzarov, I., Butterworth, J., Caines, H., Calderón de la Barca Sánchez, M., Campbell, J. M., Cebra, D., Chakaberia, I., Chaloupka, P., Chang, Z., Chankova-Bunzarova, N., Chatterjee, A., Chattopadhyay, S., Chen, J. H., Chen, X., Cheng, J., Cherney, M., Christie, W., Contin, G., Crawford, H. J., Dedovich, T. G., Deng, J., Deppner, I. M., Derevschikov, A. A., Didenko, L., Dilks, C., Dong, X., Drachenberg, J. L., Draper, J. 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., Federicova, P., Fedorisin, J., Feng, Z., Filip, P., Finch, E., Fisyak, Y., Flores, C. E., Fujita, J., Fulek, L., Gagliardi, C. A., Geurts, F., Gibson, A., Girard, M., Grosnick, D., Gunarathne, D. S., Guo, Y., Gupta, A., Guryn, W., Hamad, A. I., Hamed, A., Harlenderova, A., Harris, J. W., He, L., Heppelmann, S., Herrmann, N., Hirsch, A., Horvat, S., Huang, X., Huang, H. Z., Huang, T., Huang, B., Humanic, T. J., Huo, P., Igo, G., Jacobs, W. W., Jentsch, A., Jia, J., Jiang, K., Jowzaee, S., Judd, E. G., Kabana, S., Kalinkin, D., Kang, K., Kapukchyan, D., Kauder, K., Ke, H. W., Keane, D., Kechechyan, A., Khan, Z., Kikoła, D. P., Kim, C., Kisel, I., Kisiel, A., Kochenda, L., Kocmanek, M., Kollegger, T., Kosarzewski, L. K., Kraishan, A. F., Krauth, L., Kravtsov, P., Krueger, K., Kulathunga, N., Kumar, L., Kvapil, J., Kwasizur, J. H., Lacey, R., Landgraf, J. M., Landry, K. D., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Li, W., Li, C., Li, X., Li, Y., Lidrych, J., Lin, T., Lisa, M. A., Liu, Y., Liu, H., Liu, F., Liu, P., Ljubicic, T., Llope, W. J., Lomnitz, M., Longacre, R. S., Luo, X., Luo, S., Ma, L., Ma, Y. G., Ma, G. L., Ma, R., Magdy, N., Majka, R., Mallick, D., Margetis, S., Markert, C., Matis, H. S., Mayes, D., Meehan, K., Mei, J. C., Miller, Z. W., Minaev, N. G., Mioduszewski, S., Mishra, D., Mizuno, S., Mohanty, B., Mondal, M. M., Morozov, D. A., Mustafa, M. K., Nasim, Md., Nayak, T. K., Nelson, J. M., Nemes, D. B., Nie, M., Nigmatkulov, G., Niida, T., Nogach, L. V., Nonaka, T., Nurushev, S. B., Odyniec, G., Ogawa, A., Oh, K., Okorokov, V. A., Olvitt, D., Page, B. S., Pak, R., Pandit, Y., Panebratsev, Y., Pawlik, B., Pei, H., Perkins, C., Pluta, J., Poniatowska, K., Porter, J., Posik, M., Pruthi, N. K., Przybycien, M., Putschke, J., 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., Salur, S., Sandweiss, J., Saur, M., Schambach, J., Schmah, A. M., Schmidke, W. B., Schmitz, N., Schweid, B. R., Seger, J., Sergeeva, M., Seto, R., Seyboth, P., Shah, N., Shahaliev, E., Shanmuganathan, P. V., Shao, M., Shen, W. Q., Shi, S. S., Shi, Z., Shou, Q. Y., Sichtermann, E. P., Sikora, R., Simko, M., Singha, S., Skoby, M. J., Smirnov, N., Smirnov, D., Solyst, W., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stewart, D. J., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Sugiura, T., Sumbera, M., Summa, B., Sun, X., Sun, X. M., Sun, Y., Surrow, B., Svirida, D. N., Tang, Z., Tang, A. H., Taranenko, A., 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., Trzeciak, B. A., Tsai, O. D., Tu, B., Ullrich, T., Underwood, D. G., Upsal, I., Van Buren, G., van Nieuwenhuizen, G., Vasiliev, A. N., Videbæk, F., Vokal, S., Voloshin, S. A., Vossen, A., Wang, G., Wang, Y., Wang, F., 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., Xu, N., Xu, Y. F., Xu, Q. H., Xu, Z., Yang, Y., Yang, C., Yang, S., Yang, Q., Ye, Z., Yi, L., Yip, K., Yoo, I. -K., Zbroszczyk, H., Zha, W., Zhang, J. B., Zhang, J., Zhang, S., Zhang, Z., Zhang, Y., Zhang, L., Zhang, X. P., Zhao, J., Zhong, C., Zhou, C., Zhou, L., Zhu, X., Zhu, Z., and Zyzak, M.
Subjects: Nuclear and High Energy Physics, Transversity, Interference fragmentation function, Di-hadron correlations, High Energy Physics::Experiment, Di-hadron correlation, Nuclear Experiment, lcsh:Physics, lcsh:QC1-999
Abstract: The transversity distribution, which describes transversely polarized quarks in transversely polarized nucleons, is a fundamental component of the spin structure of the nucleon, and is only loosely constrained by global fits to existing semi-inclusive deep inelastic scattering (SIDIS) data. In transversely polarized p↑+p collisions it can be accessed using transverse polarization dependent fragmentation functions which give rise to azimuthal correlations between the polarization of the struck parton and the final state scalar mesons.This letter reports on spin dependent di-hadron correlations measured by the STAR experiment. The new dataset corresponds to 25 pb−1 integrated luminosity of p↑+p collisions at s=500 GeV, an increase of more than a factor of ten compared to our previous measurement at s=200 GeV. Non-zero asymmetries sensitive to transversity are observed at a Q2 of several hundred GeV and are found to be consistent with the former measurement and a model calculation. We expect that these data will enable an extraction of transversity with comparable precision to current SIDIS datasets but at much higher momentum transfers where subleading effects are suppressed. Keywords: Transversity, Di-hadron correlations, Interference fragmentation function
Published: 2018

48. Long-range pseudorapidity dihadron correlations in d+ Au collisions at sNN=200 GeV

Author: L. Adamczyk, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, A. Aparin, D. Arkhipkin, E.C. Aschenauer, G.S. Averichev, A. Banerjee, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, A.V. Brandin, I. Bunzarov, T.P. Burton, J. Butterworth, H. Caines, M. Calder'on de la Barca S'anchez, J.M. Campbell, D. Cebra, M.C. Cervantes, I. Chakaberia, P. Chaloupka, Z. Chang, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, M.J.M. Codrington, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. 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, P. Federic, J. Fedorisin, null Feng, P. Filip, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, L. Greiner, D. Grosnick, D.S. Gunarathne, Y. Guo, S. Gupta, A. Gupta, W. Guryn, A. Hamad, A. Hamed, R. Haque, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, H.Z. Huang, X. Huang, B. Huang, P. Huck, T.J. Humanic, G. Igo, W.W. Jacobs, H. Jang, K. Jiang, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z.H. Khan, D.P. Kikola, I. Kisel, A. Kisiel, D.D. Koetke, T. Kollegger, L.K. Kosarzewski, L. Kotchenda, A.F. Kraishan, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, R.A. Kycia, M.A.C. Lamont, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, W. Li, Z.M. Li, Y. Li, C. Li, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, L. Ma, R. Ma, G.L. Ma, Y.G. Ma, N. Magdy, R. Majka, A. Manion, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, K. Meehan, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, G. Nigmatkulov, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V. Okorokov, D.L. Olvitt, B.S. Page, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, A. Peterson, P. Pile, M. Planinic, J. Pluta, N. Poljak, K. Poniatowska, J. Porter, M. Posik, A.M. Poskanzer, N.K. Pruthi, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R. Raniwala, S. Raniwala, R.L. Ray, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, A. Roy, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, I. Sakrejda, S. Salur, A. Sandacz, J. Sandweiss, A. Sarkar, J. Schambach, R.P. Scharenberg, A.M. Schmah, W.B. Schmidke, N. Schmitz, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, M.K. Sharma, B. Sharma, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, M.J. Skoby, N. Smirnov, D. Smirnov, D. Solanki, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, R. Stock, M. Strikhanov, B. Stringfellow, M. Sumbera, B.J. Summa, Y. Sun, Z. Sun, X.M. Sun, X. Sun, B. Surrow, D.N. Svirida, M.A. Szelezniak, J. Takahashi, A.H. Tang, Z. Tang, T. Tarnowsky, A.N. Tawfik, J.H. Thomas, A.R. Timmins, D. Tlusty, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, M. Vandenbroucke, R. Varma, A.N. Vasiliev, R. Vertesi, F. Videbaek, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, Y. Wang, F. Wang, H. Wang, J.S. Wang, G. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, Z. Xu, Q.H. Xu, N. Xu, H. Xu, Y.F. Xu, Y. Yang, C. Yang, S. Yang, Q. Yang, Z. Ye, P. Yepes, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, J.B. Zhang, X.P. Zhang, S. Zhang, J. Zhang, Z. Zhang, Y. Zhang, J.L. Zhang, F. Zhao, J. Zhao, C. Zhong, L. Zhou, X. Zhu, Y. Zoulkarneeva, and M. Zyzak
Subjects: Delta, Physics, Nuclear and High Energy Physics, Particle physics, Time projection chamber, Hadron, Nuclear physics, Phi coefficient, Pseudorapidity, Quark–gluon plasma, High Energy Physics::Experiment, Multiplicity (chemistry), Nuclear Experiment, Relativistic Heavy Ion Collider
Abstract: Dihadron angular correlations in d + Au collisions at root S-NN = 200 GeV are reported as a function of the measured zero-degree calorimeter neutral energy and the forward charged hadron multiplicity in the Au-beam direction. A finite correlated yield is observed at large relative pseudorapidity (Delta eta) on the near side (i.e. relative azimuth Delta phi similar to 0). This correlated yield as a function of Delta eta appears to scale with the dominant, primarily jet-related, away-side (Delta phi similar to pi) yield. The Fourier coefficients of the Delta phi correlation, V-n = , have a strong Delta eta dependence. In addition, it is found that V-1 is approximately inversely proportional to the mid-rapidity event multiplicity, while V-2 is independent of it with similar magnitude in the forward (d-going) and backward (Au-going) directions. (C) 2015 The Authors. Published by Elsevier B.V.
Published: 2015

49. Effect of event selection on jetlike correlation measurement in d+ Au collisions at sNN=200 GeV

Author: L. Adamczyk, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, A. Aparin, D. Arkhipkin, E.C. Aschenauer, G.S. Averichev, A. Banerjee, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J. Bouchet, A.V. Brandin, I. Bunzarov, T.P. Burton, J. Butterworth, H. Caines, M. Calder'on de la Barca S'anchez, J.M. Campbell, D. Cebra, M.C. Cervantes, I. Chakaberia, P. Chaloupka, Z. Chang, S. Chattopadhyay, J.H. Chen, J. Cheng, M. Cherney, W. Christie, M.J.M. Codrington, G. Contin, H.J. Crawford, S. Das, L.C. De Silva, R.R. Debbe, T.G. Dedovich, J. Deng, A.A. Derevschikov, R. Derradi de Souza, 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, P. Federic, J. Fedorisin, null Feng, P. Filip, Y. Fisyak, C.E. Flores, C.A. Gagliardi, D. Garand, F. Geurts, A. Gibson, M. Girard, L. Greiner, D. Grosnick, D.S. Gunarathne, Y. Guo, S. Gupta, A. Gupta, W. Guryn, A. Hamad, A. Hamed, R. Haque, J.W. Harris, L. He, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, H.Z. Huang, X. Huang, B. Huang, P. Huck, T.J. Humanic, G. Igo, W.W. Jacobs, H. Jang, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, Z.H. Khan, D.P. Kikola, I. Kisel, A. Kisiel, S.R. Klein, D.D. Koetke, T. Kollegger, L.K. Kosarzewski, L. Kotchenda, A.F. Kraishan, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, R.A. Kycia, M.A.C. Lamont, J.M. Landgraf, K.D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, C. Li, W. Li, Z.M. Li, Y. Li, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, L. Ma, G.L. Ma, Y.G. Ma, R. Ma, N. Magdy, R. Majka, A. Manion, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, D.A. Morozov, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, G. Nigmatkulov, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V. Okorokov, D.L. Olvitt, B.S. Page, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, P. Pile, M. Planinic, J. Pluta, N. Poljak, K. Poniatowska, J. Porter, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. Ramachandran, R. Raniwala, S. Raniwala, R.L. Ray, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, A. Roy, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, I. Sakrejda, S. Salur, A. Sandacz, J. Sandweiss, A. Sarkar, J. Schambach, R.P. Scharenberg, A.M. Schmah, W.B. Schmidke, N. Schmitz, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, B. Sharma, M.K. Sharma, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, M. Simko, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, L. Song, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, R. Stock, M. Strikhanov, B. Stringfellow, M. Sumbera, B.J. Summa, Z. Sun, Y. Sun, X. Sun, X.M. Sun, B. Surrow, D.N. Svirida, M.A. Szelezniak, J. Takahashi, Z. Tang, A.H. Tang, T. Tarnowsky, A.N. Tawfik, J.H. Thomas, A.R. Timmins, D. Tlusty, M. Tokarev, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, B.A. Trzeciak, O.D. Tsai, J. Turnau, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, G. van Nieuwenhuizen, M. Vandenbroucke, R. Varma, G.M.S. Vasconcelos, A.N. Vasiliev, R. Vertesi, F. Videbaek, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, J.S. Wang, Y. Wang, F. Wang, G. Wang, H. Wang, J.C. Webb, G. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, Q.H. Xu, H. Xu, N. Xu, Y.F. Xu, Z. Xu, W. Yan, Y. Yang, Q. Yang, C. Yang, S. Yang, Z. Ye, P. Yepes, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, J.B. Zhang, X.P. Zhang, S. Zhang, Z. Zhang, Y. Zhang, J.L. Zhang, F. Zhao, J. Zhao, C. Zhong, X. Zhu, Y. Zoulkarneeva, and M. Zyzak
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Time projection chamber, 010308 nuclear & particles physics, Multiplicity (mathematics), 01 natural sciences, Charged particle, Nuclear physics, Correlation, Deuterium, 0103 physical sciences, Quark–gluon plasma, Nuclear Experiment, 010306 general physics, Jet quenching, Relativistic Heavy Ion Collider
Abstract: Dihadron correlations are analyzed in sNN=200 GeV d+Au collisions classified by forward charged particle multiplicity and zero-degree neutral energy in the Au-beam direction. It is found that the jetlike correlated yield increases with the event multiplicity. After taking into account this dependence, the non-jet contribution on the away side is minimal, leaving little room for a back-to-back ridge in these collisions.
Published: 2015

50. Dijet imbalance measurements in Au+Au and pp collisions at sNN=200 GeV at STAR

Author: Jana Bielcikova, N. Xu, P. Filip, Guannan Xie, J. L. Romero, Xuan Zhang, Anik Gupta, P. Pile, G. D. Westfall, Madan M. Aggarwal, Xiaofeng Luo, E. Finch, L. Yi, Xuedong Bai, Robert Vertesi, Hanna Paulina Zbroszczyk, M. Tokarev, Yang Yang, J. M. Campbell, Jun Deng, T. Nonaka, Frank Jm Geurts, Wei Xie, A. Aparin, Y. Pandit, N. Schmitz, E. Shahaliev, Guo-Liang Ma, Fuqiang Wang, D. K. Mishra, J. W. Harris, Q. H. Xu, P. Sorensen, J. Xu, J. Engelage, H. G. Ritter, A. S. Hirsch, P. Kravtsov, A. M. Schmah, A. Manion, D. Kalinkin, T. G. Dedovich, Xiaofeng Zhu, Xiangming Sun, Mukesh Sharma, G. Wang, S. Heppelmann, J. Porter, Rafal Sikora, K. Meehan, G. Nigmatkulov, R. Reed, P. Bhattarai, L. Didenko, I. Chakaberia, T. D. S. Stanislaus, B. J. Summa, K. Poniatowska, S. K. Gupta, A. Vossen, Muhammad Usman Ashraf, A. Ogawa, Isaac Upsal, Giacomo Contin, Jorn Henning Putschke, J. M. Landgraf, A. H. Tang, H. H. Wieman, Roli Esha, A. V. Brandin, O. D. Tsai, G. Agakishiev, D. S. Gunarathne, Hao Qiu, Jie Zhao, T. Lin, James Brandenburg, A. Sharma, Arka Chatterjee, S. Esumi, J. B. Zhang, D. D. Koetke, M. Strikhanov, D. Cebra, Sergey Voloshin, F. Videbæk, J. E. Draper, I. K. Yoo, S. Ramachandran, S. Horvat, O. Eyser, G. Webb, Nihar Sahoo, K. Xin, Zhigang Xiao, T. Huang, I. Bunzarov, C-Q. Li, M. J. Rehbein, M. Calderon De La Barca Sanchez, A. I. Hamad, R. P. Scharenberg, Christina Markert, L. Song, Vipul Bairathi, D. Smirnov, O. Rusnakova, W. Q. Shen, L. C. Bland, H. S. Matis, B. Huang, X. C. Chen, Z. J. Sun, S. McKinzie, P. Huck, S. Kabana, M. M. Mondal, Jaroslav Bielcik, L. E. Dunkelberger, Sedigheh Jowzaee, N. K. Pruthi, Xiang Li, A. M. Poskanzer, Z. Ye, L. K. Kosarzewski, Yunpeng Liu, Derek Anderson, W. W. Jacobs, J. Lauret, N. G. Minaev, M. A.C. Lamont, K. Jiang, J. Sandweiss, Sukalyan Chattopadhyay, J. Y. Zhang, H. Z. Huang, Yanjun Wu, Anthony Robert Timmins, Adam Ryszard Kisiel, H. J. Crawford, S. Vokal, O. V. Rogachevskiy, Tetsuro Sugiura, Y. J. Sun, C. Dilks, Nasim, A. Quintero, X. Huang, A. Kechechyan, W. Zha, R. Lednicky, L. Kochenda, R. Haque, T. Tarnowsky, I. G. Alekseev, K. Yip, J. S. Wang, G. Eppley, D. N. Svirida, R. S. Longacre, Zebo Tang, Leo Clifford Greiner, M. K. Mustafa, Y. Li, S. Singha, M. A. Lisa, J. C. Mei, N. Yu, Z. Feng, M. Lomnitz, Y. Fisyak, Kejun Kang, L. V. Nogach, Sumit R. Das, M. Zyzak, G. Van Nieuwenhuizen, J. Pluta, W. Li, D. Garand, Sevil Salur, Y. Wang, C. E. Flores, E. G. Judd, R. R. Debbe, C. Zhong, Shangfeng Yang, J. H. Chen, C. Yang, Pradip Kumar Sahu, P. V. Shanmuganathan, C. Perkins, E. C. Aschenauer, P. Federic, A. A. Derevschikov, Justin Ewigleben, Lin Ma, Siwei Luo, K. Oh, D. L. Olvitt, J. K. Adkins, R. Fatemi, L. He, Zongye Zhang, I. G. Bordyuzhin, J. D. Roth, Rene Bellwied, J. Rusnak, R. Stock, P. Seyboth, Vitaly Okorokov, R. E. Tribble, A. F. Kraishan, L. Ruan, Leszek Adamczyk, Z. H. Khan, G. Odyniec, W. Guryn, Y. Zoulkarneeva, G. Igo, J. Novak, D. A. Morozov, W. J. Llope, Alexander Jentsch, Bernd Surrow, Z. W. Miller, A. K. Bhati, D. Keane, B. Sharma, J. Bouchet, M. R. Girard, A. Attri, K. D. Landry, N. Elsey, Gerald W Hoffmann, T. Todoroki, D. Tlusty, Nikolai Smirnov, I. Sakrejda, K. Kauder, S. Margetis, X. Dong, J. Butterworth, J. C. Webb, K. Krueger, W. B. Schmidke, C. A. Gagliardi, L. G. Efimov, M. J. Skoby, Yinina Ma, I. Kisel, T. K. Nayak, E. P. Sichtermann, Y. F. Xu, L. Fulek, W. Solyst, Z. Chang, Y. Panebratsev, J. Fedorisin, D. Grosnick, Nilay Shah, T. J. Humanic, Bedangadas Mohanty, R. Aoyama, M. Posik, Abdel Nasser Tawfik, M. Cherney, T. Ullrich, H. M. Spinka, Lokesh Kumar, D. G. Underwood, Hua Pei, S. K. Tripathy, J. H. Thomas, Q. Yang, C. M. Du, J. Jia, L. P. Zhou, H. S. Xu, S. B. Nurushev, B. S. Page, Y. Guo, Jongmin Lee, R. L. Ray, J. Cheng, R. Ma, M. Stepanov, T. Ljubicic, L. C. De Silva, D. P. Kikola, G. S. Averichev, B. Stringfellow, Niseem Magdy, H. Caines, M. Shao, Y. X. Pan, G. Van Buren, S. S. Shi, Michal Sumbera, S. Fazio, S. W. Wissink, Y. Zhang, D. Arkhipkin, J. Thäder, A. Hamed, P. Chaloupka, Z. J. Xu, S. Trentalange, B. Pawlik, A. Gibson, S. Zhang, David Brown, F. Liu, Miroslav Simko, Mariusz Przybycien, R. D. Majka, J. Schambach, W. Christie, Andrey Vasiliev, Janet Elizabeth Seger, Anju Bhasin, T. Niida, A. Lebedev, Z. Shi, R. Witt, S. Mioduszewski, Donald M. McDonald, Prithwish Tribedy, B. K. Srivastava, J. C. Dunlop, L. Wen, Zubayer Ahammed, Q. Y. Shou, R. Pak, J. L. Drachenberg, Olga Evdokimov, Jay Roberts, and H. W. Ke
Subjects: Physics, Nuclear reaction, Particle physics, 010308 nuclear & particles physics, media_common.quotation_subject, Hadron, General Physics and Astronomy, Jet (particle physics), 01 natural sciences, Asymmetry, Nuclear physics, Momentum, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Jet quenching, media_common, STAR detector
Abstract: We report the first dijet transverse momentum asymmetry measurements from Au+Au and pp collisions at RHIC. The two highest-energy back-to-back jets reconstructed from fragments with transverse momenta above 2 GeV/c display a significantly higher momentum imbalance in heavy-ion collisions than in the pp reference. When reexamined with correlated soft particles included, we observe that these dijets then exhibit a unique new feature-momentum balance is restored to that observed in pp for a jet resolution parameter of R=0.4, while rebalancing is not attained with a smaller value of R=0.2.
Published: 2017

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