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1. An optimized long short-term memory (LSTM)-based approach applied to early warning and forecasting of ponding in the urban drainage system

Author

W. Zhu, T. Tao, H. Yan, J. Yan, J. Wang, S. Li, and K. Xin

Subjects
Technology, Environmental technology. Sanitary engineering, TD1-1066, Geography. Anthropology. Recreation, Environmental sciences, GE1-350
Abstract

In this study, we propose an optimized long short-term memory (LSTM)-based approach which is applied to early warning and forecasting of ponding in the urban drainage system. This approach can quickly identify and locate ponding with relatively high accuracy. Based on the approach, a model is developed, which is constructed by two tandem processes and utilizes a multi-task learning mechanism. The superiority of the developed model was demonstrated by comparing with two widely used neural networks (LSTM and convolutional neural networks). Then, the model was further revised with the available monitoring data in the study area to achieve higher accuracy. We also discussed how the number of selected monitoring points influenced the performance of the corrected model. In this study, over 15 000 designed rainfall events were used for model training, covering various extreme weather conditions.

Published
2023
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2. Characteristics, primary sources and secondary formation of water-soluble organic aerosols in downtown Beijing

Author

Q. Yu, J. Chen, W. Qin, S. Cheng, Y. Zhang, Y. Sun, K. Xin, and M. Ahmad

Subjects
Physics, QC1-999, Chemistry, QD1-999
Abstract

Water-soluble organic carbon (WSOC) accounts for a large proportion of aerosols and plays a critical role in various atmospheric chemical processes. In order to investigate the primary sources and secondary production of WSOC in downtown Beijing, day and night fine particulate matter (PM2.5) samples in January (winter), April (spring), July (summer) and October (autumn) 2017 were collected and analyzed for WSOC and organic tracers in this study. WSOC was dominated by its moderately hydrophilic fraction and showed the highest concentration in January and comparable levels in April, July and October 2017. Some typical organic tracers were chosen to evaluate the emission strength and secondary formation of WSOC. Seasonal variation of the organic tracers suggested significantly enhanced formation of anthropogenic secondary organic aerosols (SOAs) during the sampling period in winter and obviously elevated biogenic SOA formation during the sampling period in summer. These organic tracers were applied into a positive matrix factorization (PMF) model to calculate the source contributions of WSOC as well as its moderately and strongly hydrophilic portions. The secondary sources contributed more than 50 % to WSOC, with higher contributions during the sampling periods in summer (75.1 %) and winter (67.4 %), and the largest contributor was aromatic SOC. In addition, source apportionment results under different pollution levels suggested that controlling biomass burning and aromatic precursors would be effective to reduce WSOC during the haze episodes in cold seasons. The impact factors for the formation of different SOA tracers and total secondary organic carbon (SOC) as well as moderately and strongly hydrophilic SOC were also investigated. The acid-catalyzed heterogeneous or aqueous-phase oxidation appeared to dominate in the SOC formation during the sampling period in winter, while the photochemical oxidation played a more critical role during the sampling period in summer. Moreover, photooxidation played a more critical role in the formation of moderately hydrophilic SOC, while the heterogeneous or aqueous-phase reactions had more vital effects on the formation of strongly hydrophilic SOC.

Published
2021
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3. 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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4. 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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5. 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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6. 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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7. 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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8. 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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9. Corrigendum to 'Suppression of ϒ production in d+Au and Au+Au collisions at sNN=200 GeV' [Phys. Lett. B 735 (2014) 127–137]

Author

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, J. Balewski, A. Banerjee, Z. Barnovska, D.R. Beavis, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, H. Bichsel, 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, 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, J. Chwastowski, M.J.M. Codrington, R. Corliss, 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, S. Dhamija, 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, R. Fatemi, S. Fazio, J. Fedorisin, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, C.A. Gagliardi, D.R. Gangadharan, D. Garand, F. Geurts, A. Gibson, M. Girard, S. Gliske, D. Grosnick, Y. Guo, A. Gupta, S. Gupta, W. Guryn, B. Haag, O. Hajkova, A. Hamed, L.-X. Han, R. Haque, J.W. Harris, J.P. Hays-Wehle, S. Heppelmann, K. Hill, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, B. Huang, H.Z. 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, W. Korsch, L. Kotchenda, 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, W. Leight, M.J. LeVine, C. Li, W. Li, X. Li, Y. Li, Z.M. Li, L.M. Lima, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, X. Luo, G.L. Ma, Y.G. Ma, D.M.M.D. Madagodagettige Don, 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.G. Munhoz, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, J.M. Nelson, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E.W. Oldag, R.A.N. Oliveira, M. Pachr, B.S. Page, S.K. Pal, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, W. Peryt, A. Peterson, P. Pile, M. Planinic, J. Pluta, D. Plyku, N. Poljak, J. Porter, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, P.R. Pujahari, 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, 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, R.N. Singaraju, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, U.G. deSouza, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, J.R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, X. Sun, X.M. Sun, Y. Sun, Z. Sun, B. Surrow, D.N. Svirida, T.J.M. Symons, A. Szanto de Toledo, 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, 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, M. Walker, F. Wang, G. Wang, H. Wang, J.S. Wang, X.L. Wang, Y. Wang, G. Webb, J.C. Webb, G.D. Westfall, H. Wieman, G. Wimsatt, S.W. Wissink, R. Witt, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, H. 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, Y. Zawisza, 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
Published
2015
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10. Dexamethasone and sodium carboxymethyl cellulose prevent postoperative intraperitoneal adhesions in rats

Author

X.H. Du, J.Q. Liu, K. Xin, and G.H. Liu

Subjects
Dexamethasone, Sodium carboxymethyl cellulose, Adhesions, Medicine (General), R5-920, Biology (General), QH301-705.5
Abstract

We aimed to evaluate the effects of the barrier agent sodium carboxymethyl cellulose (SCMC) with and without dexamethasone for the prevention of postoperative adhesion formation in a rat model of postoperative peritoneal adhesion. A total of 160 three-month old male and female Wistar rats underwent a laparotomy, and adhesions were induced by ileocecal abrasion. Rats were randomly assigned to 4 groups (n=40 each): group A, untreated; group B, treated with SCMC only; group C1, treated with SCMC + 3 mg dexamethasone, and group C2, treated with SCMC + 8 mg dexamethasone. After 12 days, adhesion formation and histopathological changes were compared. In groups A, B, C1, and C2, the mortality rates were 10, 5, 5, and 5%, respectively. In groups C1 and C2, the adhesions were filmy and easy to dissect and were milder compared with those in groups A and B. The total adhesion score in group C1 (3.38±0.49) was significantly lower than that of group B (6.01±0.57; P

Published
2015
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11. J/ψ polarization in p+p collisions at s=200 GeV in STAR

Author

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, J. Balewski, A. Banerjee, Z. Barnovska, D.R. Beavis, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, H. Bichsel, 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, 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, J. Chwastowski, M.J.M. Codrington, R. Corliss, 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, S. Dhamija, 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, R. Fatemi, S. Fazio, J. Fedorisin, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, C.A. Gagliardi, D.R. Gangadharan, D. Garand, F. Geurts, A. Gibson, M. Girard, S. Gliske, D. Grosnick, Y. Guo, A. Gupta, S. Gupta, W. Guryn, B. Haag, O. Hajkova, A. Hamed, L.-X. Han, R. Haque, J.W. Harris, J.P. Hays-Wehle, 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, W. Korsch, L. Kotchenda, 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, W. Leight, M.J. LeVine, C. Li, W. Li, X. Li, Y. Li, Z.M. Li, L.M. Lima, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, X. Luo, G.L. Ma, Y.G. Ma, D.M.M.D. Madagodagettige Don, 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.G. Munhoz, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, J.M. Nelson, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E.W. Oldag, R.A.N. Oliveira, M. Pachr, B.S. Page, S.K. Pal, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, W. Peryt, P. Pile, M. Planinic, J. Pluta, D. Plyku, N. Poljak, J. Porter, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, P.R. Pujahari, 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, 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, R.N. Singaraju, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, U.G. deSouza, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, J.R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, X. Sun, X.M. Sun, Y. Sun, Z. Sun, B. Surrow, D.N. Svirida, T.J.M. Symons, A. Szanto de Toledo, 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, 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, M. Walker, 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, R. Witt, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, H. 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, Y. Zawisza, 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

We report on a polarization measurement of inclusive J/ψ mesons in the di-electron decay channel at mid-rapidity at 2

Published
2014
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12. Secretory Cells Are the Primary Source of pIgR in Small Airways

Author

Jessica B. Blackburn, Jacob A. Schaff, Sergey Gutor, Rui-Hong Du, David Nichols, Taylor Sherrill, Austin J. Gutierrez, Matthew K. Xin, Nancy Wickersham, Yong Zhang, Michael J. Holtzman, Lorraine B. Ware, Nicholas E. Banovich, Jonathan A. Kropski, Timothy S. Blackwell, and Bradley W. Richmond

Subjects
Pulmonary and Respiratory Medicine, Clinical Biochemistry, Respiratory System, Receptors, Polymeric Immunoglobulin, Cell Biology, Haemophilus influenzae, Mice, Pulmonary Disease, Chronic Obstructive, Immunoglobulin A, Secretory, Proteolysis, Animals, Humans, Leukocyte Elastase, Molecular Biology
Abstract

Loss of secretory IgA (SIgA) is common in chronic obstructive pulmonary disease (COPD) small airways and likely contributes to disease progression. We hypothesized that loss of SIgA results from reduced expression of pIgR (polymeric immunoglobulin receptor), a chaperone protein needed for SIgA transcytosis, in the COPD small airway epithelium. pIgR-expressing cells were defined and quantified at single-cell resolution in human airways using RNA

Published
2023

14. Monocyte-derived dendritic cells link localized secretory IgA deficiency to adaptive immune activation in COPD

Author

Georgii Vasiukov, Wei Han, Sergey V. Novitskiy, Bradley W. Richmond, Samira Mansouri, Matthew K. Xin, Ana Serezani, Hubaida Fuseini, Dawn C. Newcomb, Jessica B. Blackburn, Vasiliy V. Polosukhin, Sergey Gutor, Rui-Hong Du, Jacob E. Schaff, Timothy S. Blackwell, and Lei Jin

Subjects
CD4-Positive T-Lymphocytes, Male, 0301 basic medicine, Receptors, CCR2, Lymphocyte, Immunology, Adaptive Immunity, CD8-Positive T-Lymphocytes, Lymphocyte Activation, Monocytes, Article, Gene Knockout Techniques, Mice, Pulmonary Disease, Chronic Obstructive, 03 medical and health sciences, 0302 clinical medicine, Animals, Humans, Immunology and Allergy, Medicine, Cells, Cultured, Emphysema, COPD, Lung, business.industry, Monocyte, IgA Deficiency, Secretory IgA deficiency, Dendritic Cells, T lymphocyte, respiratory system, medicine.disease, Acquired immune system, Immunoglobulin A, respiratory tract diseases, Mice, Inbred C57BL, Tertiary Lymphoid Structures, 030104 developmental biology, medicine.anatomical_structure, 030228 respiratory system, Female, business, CD8
Abstract

Although activation of adaptive immunity is a common pathological feature of chronic obstructive pulmonary disease (COPD), particularly during later stages of the disease, the underlying mechanisms are poorly understood. In small airways of COPD patients, we found that localized disruption of the secretory immunoglobulin A (SIgA)-containing mucosal immunobarrier correlated with lymphocyte accumulation in airway walls and development of tertiary lymphoid structures (TLS) around small airways. In SIgA-deficient mice, we observed bacterial invasion into the airway epithelial barrier with lymphocytic infiltration and TLS formation, which correlated with the progression of COPD-like pathology with advanced age. Depletion of either CD4+ or CD8+ T lymphocytes reduced the severity of emphysema in SIgA-deficient mice, indicating that adaptive immune activation contributes to progressive lung destruction. Further studies revealed that lymphocyte infiltration into the lungs of SIgA-deficient mice was dependent on monocyte-derived dendritic cells (moDCs), which were recruited through a CCR2-dependent mechanism in response to airway bacteria. Consistent with these results, we found that moDCs were increased in lungs of COPD patients, along with CD4+ and CD8+ effector memory T cells. Together, these data indicate that endogenous bacteria in SIgA-deficient airways orchestrate a persistent and pathologic T lymphocyte response through monocyte recruitment and moDC differentiation.

Published
2021

15. Secretory cells are the primary source of pIgR in small airways

Author

Jessica B. Blackburn, Jae-Woo Lee, Rui-Hong Du, Nancy Wickersham, David Nichols, Matthew K. Xin, Yong Zhang, Taylor P. Sherrill, Bradley W. Richmond, Vasiliy V. Polosukhin, Michael J. Holtzman, Austin J. Gutierrez, Nicholas E. Banovich, Jonathan A. Kropski, Timothy S. Blackwell, Lorraine B. Ware, Jacob A. Schaff, and Sergey Gutor

Subjects
Proteases, Cell type, biology, Elastase, Epithelium, Cell biology, fluids and secretions, medicine.anatomical_structure, stomatognathic system, Transcytosis, Neutrophil elastase, medicine, biology.protein, Respiratory epithelium, Immunostaining
Abstract

BackgroundLoss of secretory immunoglobulin A (SIgA) is common in COPD small airways and likely contributes to disease progression. We hypothesized loss of SIgA results from reduced expression of pIgR, a chaperone protein needed for SIgA transcytosis, in the COPD small airway epithelium.MethodspIgR-expressing cells were defined and quantified at single-cell resolution in human airways using RNA in-situ hybridization, immunostaining, and single-cell RNA sequencing. Complementary studies in mice utilized immunostaining, primary murine tracheal epithelial cell (MTEC) culture, and transgenic mice with secretory or ciliated cell-specific knockout of pIgR. SIgA degradation by human neutrophil elastase or secreted bacterial proteases from non-typeable Haemophilus influenzae (NTHi) was evaluated in vitro.ResultsWe found that secretory cells are the predominant cell type responsible for pIgR expression in human and murine airways. Loss of SIgA in small airways was not associated with a reduction in secretory cells but rather a reduction in pIgR protein expression despite intact PIGR mRNA expression. Neutrophil elastase and NTHi-secreted proteases are both capable of degrading SIgA in vitro and may also contribute to a deficient SIgA immunobarrier in COPD.InterpretationLoss of the SIgA immunobarrier in small airways of patients severe COPD is complex and likely results from both pIgR-dependent defects in IgA transcytosis and SIgA degradation.Key MessagesWhat is the key question? Localized SIgA deficiency in small airways is an established driver of COPD pathogenesis, but the mechanism of loss remains unclear. We hypothesized loss of SIgA is due to reduced numbers of pIgR-expressing cells in SIgA-deficient small airways.What is the bottom line? pIgR is primarily expressed by secretory cells in human and murine airways. Although numbers of secretory cells are similar between SIgA-deficient and SIgA-replete airways in COPD, there is reduced expression of pIgR protein, but not mRNA, in SIgA-deficient airways. Additionally, host and bacterial proteases degrade SIgA in vitro, suggesting loss of SIgA may relate to both impaired transcytosis and increased degradation.Why read on? This study highlights the complexity of SIgA immunobarrier maintenance and suggests that strategies aimed at restoring the SIgA immunobarrier will need to account for both impaired transcytosis and degradation by host and/or bacterial proteases.

Published
2021

16. Identification of mechanical structure for servo drive system

Author

C. Wang, J. F. Pan, and L. K Xin

Subjects
Motor drive, Identification (information), Computer science, Control theory, media_common.quotation_subject, Control system, Automatic frequency control, Servo drive, Servomotor, Inertia, System model, media_common
Abstract

The identification of mechanical structure plays a decisive role on parameter identification and the system performance improvement. According to whether the impact of transmission mechanism is considered, it is divided into one mass structure and two mass structure. However, structure identification is often ignored in motor drive system. This paper deals with a novel method for mechanical structure identification of the servo drive system, which takes a comprehensive consideration of both the system mechanical parameters and control parameters. On one hand, the system mechanical parameters are characterized by the natural oscillation frequency that is derived from the two-mass system model analysis. On the other hand, the control system bandwidth is obtained by the amplitude-frequency characteristic analysis, which can be seen not only related to the mechanical parameters but also related to the control parameters. Through comparing the natural oscillation frequency and the control system bandwidth, the structure of the system is finally determined. Based on the simulation results, it is validity that the proposed method is applicable for the structure identification of the one inertia and two inertia system.

Published
2020

17. How to Identify Homelessness Using Administrative Data

Author

Xiao Chen, Brenna O'Masta, M. Huynh, Dahai Yue, Nadereh Pourat, and K. Xin

Subjects
Health Policy, Special Issue Abstracts
Abstract

RESEARCH OBJECTIVE: Addressing social determinant of health such as homelessness is increasingly the focus of efforts to reduce costs and improve health outcomes. Yet, such efforts face significant barriers including how to identify, target, and evaluate homeless populations for better care using administrative data. Some studies have used diagnosis codes or addresses but the sensitivity and specificity of these methods cannot be verified. We developed an algorithm to identify homeless beneficiaries from Medicaid enrollment and claims data and publically available data using machine learning techniques. The algorithm was trained using homeless status data from the California Section 115 Medicaid waiver demonstration Whole Person Care (WPC) Pilot program. STUDY DESIGN: WPC Pilots determined enrollees' homelessness status using a variety of methods, including data from established homeless information management systems, standardized assessment tools, and individual self‐report. Using Medicaid monthly enrollment and claims data, we constructed multiple indicators for homelessness based on International Classification of Diseases (ICD) diagnosis codes, place of service, and residential addresses (identified addresses that were invalid, had specific keywords such as homeless or bridge, or that were places of service rather than residential). We developed an algorithm to predict homelessness using these indicators along with zip code‐level socioeconomic variables (eg, unemployment rate), enrollment data on demographic variables (eg, age, gender, race/ethnicity), claims data health status (eg, Chronic Illness and Disability Payment System (CDPS) scores, number of chronic diseases), and health care utilization variables (eg, emergency room visits, hospitalizations). We used supervised machine learning techniques that included logistic regression, partial least squares, multivariate adaptive regression splines (MARS), and random forests. POPULATION STUDIED: A total of 95 171 patients were enrolled in the WPC program with complete demographic variables, among which 40% were reported as homeless by the Pilots. PRINCIPAL FINDINGS: We chose the random forest algorithm due to its superior performance over other techniques. The algorithm identified 25 350 enrollees as homeless and provided a predictive accuracy of 88.75%, sensitivity of 81.45%, and specificity of 93.66%. This algorithm performed better than a simple logistic regression (sensitivity = 79.57%) and solely relying on ICD codes (sensitivity = 25.55%). When comparing to enrollees that were identified as homeless by both the Pilots and our algorithm, those identified as homeless by Pilots, but not our algorithm (n = 4969), were younger, more often female, black, Latino and from Los Angeles, Contra Costa, and Alameda counties and those identified as homeless by our algorithm, but not Pilots (n = 2526) were younger and more often male, Latino and from Los Angeles county. CONCLUSIONS: Our methods were relatively accurate in identifying homelessness using available administrative data and other public data sources. The discordance between our algorithm and Pilots' homelessness status was likely because of variations in Pilots' approaches, ability to enroll homeless beneficiaries, and use of other available information in medical records or in‐person contacts. IMPLICATIONS FOR POLICY OR PRACTICE: The ability to identify these patients with administrative and public data is critical to the success of Medicaid and other programs in management of the needs of these patients, providing needed services, and monitoring progress of such efforts. PRIMARY FUNDING SOURCE: California Department of Health Care Services.

Published
2020

19. How did the COVID-19 pandemic affect clinical training of Malaysian dental students: final year students' perspectives

Author

R. Esa, Nik Mohd Mazuan Nik Mohd Rosdy, N. S. Andiesta, L. L. Yin, L. K. Xin, T. N. M. Dom, H. Z. Yew, N. A. L. Chanthirasekar, Budi Aslinie Md Sabri, H. Rani, Kranthi Raja Kacharaju, A. Parolia, and M. Bukhari

Subjects
Medical education, Coronavirus disease 2019 (COVID-19), Clinical training, Pandemic, Dental education, Psychology, Affect (psychology)
Published
2021

20. 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

21. 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

22. IL-3 Is a Marker of Encephalitogenic T Cells, but Not Essential for CNS Autoimmunity

Author

Priscilla W. Lee, Amy E. Lovett-Racke, Matthew K. Xin, Wei Pei, and Yuhong Yang

Subjects
Central Nervous System, lcsh:Immunologic diseases. Allergy, 0301 basic medicine, Encephalomyelitis, Autoimmune, Experimental, Genotype, T-Lymphocytes, Transgene, Central nervous system, Immunology, experimental autoimmune encephalomyelitis, Autoimmunity, Mice, Transgenic, multiple sclerosis, medicine.disease_cause, Mice, 03 medical and health sciences, 0302 clinical medicine, T-Lymphocyte Subsets, medicine, Animals, Immunology and Allergy, Th1 cells, Alleles, Interleukin 3, Mice, Knockout, biology, Chemistry, Multiple sclerosis, IL-3, Experimental autoimmune encephalomyelitis, T-cell receptor, GM-CSF, medicine.disease, Th17 cells, 030104 developmental biology, medicine.anatomical_structure, biology.protein, Interleukin-3, Antibody, lcsh:RC581-607, 030217 neurology & neurosurgery
Abstract

Identifying molecules that are differentially expressed in encephalitogenic T cells is critical to the development of novel and specific therapies for multiple sclerosis (MS). In this study, IL-3 was identified as a molecule highly expressed in encephalitogenic Th1 and Th17 cells, but not in myelin-specific non-encephalitogenic Th1 and Th17 cells. However, B10.PL IL-3-deficient mice remained susceptible to experimental autoimmune encephalomyelitis (EAE), a mouse model of MS. Furthermore, B10.PL myelin-specific T cell receptor transgenic IL-3−/− Th1 and Th17 cells were capable of transferring EAE to wild-type mice. Antibody neutralization of IL-3 produced by encephalitogenic Th1 and Th17 cells failed to alter their ability to transfer EAE. Thus, IL-3 is highly expressed in myelin-specific T cells capable of inducing EAE compared to activated, non-encephalitogenic myelin-specific T cells. However, loss of IL-3 in encephalitogenic T cells does not reduce their pathogenicity, indicating that IL-3 is a marker of encephalitogenic T cells, but not a critical element in their pathogenic capacity.

Published
2018
Full Text
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23. 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

24. Corrigendum to 'Suppression of ϒ production in d+ Au and Au + Au collisions at sNN=200 GeV' [Phys. Lett. B 735 (2014) 127–137]

Author

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, J. Balewski, A. Banerjee, Z. Barnovska, D.R. Beavis, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, H. Bichsel, 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, 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, J. Chwastowski, M.J.M. Codrington, R. Corliss, 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, S. Dhamija, 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, R. Fatemi, S. Fazio, J. Fedorisin, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, C.A. Gagliardi, D.R. Gangadharan, D. Garand, F. Geurts, A. Gibson, M. Girard, S. Gliske, D. Grosnick, Y. Guo, A. Gupta, S. Gupta, W. Guryn, B. Haag, O. Hajkova, A. Hamed, L.-X. Han, R. Haque, J.W. Harris, J.P. Hays-Wehle, S. Heppelmann, K. Hill, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, B. Huang, H.Z. 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, W. Korsch, L. Kotchenda, 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, W. Leight, M.J. LeVine, C. Li, W. Li, X. Li, Y. Li, Z.M. Li, L.M. Lima, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, X. Luo, G.L. Ma, Y.G. Ma, D.M.M.D. Madagodagettige Don, 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.G. Munhoz, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, J.M. Nelson, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E.W. Oldag, R.A.N. Oliveira, M. Pachr, B.S. Page, S.K. Pal, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, W. Peryt, A. Peterson, P. Pile, M. Planinic, J. Pluta, D. Plyku, N. Poljak, J. Porter, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, P.R. Pujahari, 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, 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, R.N. Singaraju, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, U.G. deSouza, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, J.R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, X. Sun, X.M. Sun, Y. Sun, Z. Sun, B. Surrow, D.N. Svirida, T.J.M. Symons, A. Szanto de Toledo, 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, J.A. Vanfossen, R. Varma, G.M.S. Vasconcelos, A.N. Vasiliev, R. Vertesi, F. Videbæk, Y.P. Viyogi, S. Vokal, A. Vossen, M. Wada, M. Walker, F. Wang, G. Wang, H. Wang, J.S. Wang, X.L. Wang, Y. Wang, G. Webb, J.C. Webb, G.D. Westfall, H. Wieman, G. Wimsatt, S.W. Wissink, R. Witt, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, H. 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, Y. Zawisza, 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, Nuclear and High Energy Physics, Range (particle radiation), Meson, Parton, Plasma, Nuclear matter, Nuclear physics, Yield (chemistry), High Energy Physics::Experiment, Rapidity, Atomic physics, Nuclear Experiment, STAR detector
Abstract

We report measurements of Υ meson production in p + p, d + Au, and Au+Au collisions using the STAR detector at RHIC. We compare the Υ yield to the measured cross section in p + p collisions in order to quantify any modifications of the yield in cold nuclear matter using d + Au data and in hot nuclear matter using Au+Au data separated into three centrality classes. Our p + p measurement is based on three times the statistics of our previous result. We obtain a nuclear modification factor for Upsilon (1S + 2S + 3S) in the rapidity range |y| < 1 in d + Au collisions of RdAu = 0.79 ± 0.24(stat.) ± 0.03(syst.) ± 0.10(p + p syst.). A comparison with models including shadowing and initial state parton energy loss indicates the presence of additional cold-nuclear matter suppression. Similarly, in the top 10% most-central Au + Au collisions, we measure a nuclear modification factor of R AA = 0.49 ±0.1(stat.) ±0.02(syst.) ±0.06(p + p syst.), which is a larger suppression factor than that seen in cold nuclear matter. Our results are consistent with complete suppression of excited-state Upsilon mesons in Au + Au collisions. Themore » additional suppression in Au + Au is consistent with the level expected in model calculations that include the presence of a hot, deconfined Quark–Gluon Plasma. However, understanding the suppression seen in d + Au is still needed before any definitive statements about the nature of the suppression in Au + Au can be made.« less

Published
2015

25. 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

26. Dexamethasone and sodium carboxymethyl cellulose prevent postoperative intraperitoneal adhesions in rats

Author

J.Q. Liu, G.H. Liu, X.H. Du, and K. Xin

Subjects
Male, Medicine (General), Physiology, Adhesions, Tissue Adhesions, Peritoneal Diseases, Biochemistry, Group A, Gastroenterology, Group B, Dexamethasone, Random Allocation, Postoperative Complications, General Pharmacology, Toxicology and Pharmaceutics, Biology (General), lcsh:QH301-705.5, Tissue Adhesion, lcsh:R5-920, General Neuroscience, General Medicine, Adhesion, medicine.anatomical_structure, Drug Therapy, Combination, Female, Peritoneum, lcsh:Medicine (General), medicine.drug, medicine.medical_specialty, QH301-705.5, Immunology, Biophysics, Ocean Engineering, Sodium carboxymethyl cellulose, R5-920, Internal medicine, medicine, Animals, Clinical Investigation, Rats, Wistar, Laparotomy, business.industry, Cell Biology, Surgery, Carboxymethyl cellulose, Disease Models, Animal, lcsh:Biology (General), Carboxymethylcellulose Sodium, business, Abdominal surgery
Abstract

We aimed to evaluate the effects of the barrier agent sodium carboxymethyl cellulose (SCMC) with and without dexamethasone for the prevention of postoperative adhesion formation in a rat model of postoperative peritoneal adhesion. A total of 160 three-month old male and female Wistar rats underwent a laparotomy, and adhesions were induced by ileocecal abrasion. Rats were randomly assigned to 4 groups (n=40 each): group A, untreated; group B, treated with SCMC only; group C1, treated with SCMC + 3 mg dexamethasone, and group C2, treated with SCMC + 8 mg dexamethasone. After 12 days, adhesion formation and histopathological changes were compared. In groups A, B, C1, and C2, the mortality rates were 10, 5, 5, and 5%, respectively. In groups C1 and C2, the adhesions were filmy and easy to dissect and were milder compared with those in groups A and B. The total adhesion score in group C1 (3.38±0.49) was significantly lower than that of group B (6.01±0.57; P

Published
2015

27. 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

28. Charge-Dependent Directed Flow in Cu+Au Collisions at sNN=200 GeV

Author

J. Engelage, Michal Sumbera, G. Nigmatkulov, J. M. Landgraf, I. G. Alekseev, M. Strikhanov, R. Witt, W. J. Llope, M. A. Lisa, J. C. Mei, S. Fazio, S. Mioduszewski, H. Z. Huang, S. Vokal, Alexander Jentsch, S. W. Wissink, Q. H. Xu, G. Eppley, Donald M. McDonald, Prithwish Tribedy, T. Nonaka, B. K. Srivastava, J. Xu, A. Attri, Y. Zhang, G. Odyniec, Y. Zoulkarneeva, Shangfeng Yang, J. H. Chen, J. M. Campbell, J. Pluta, W. Li, M. Calderon De La Barca Sanchez, A. I. Hamad, Haiyan Wang, J. Thäder, T. G. Dedovich, J. C. Dunlop, L. Wen, J. Sandweiss, D. A. Morozov, Zubayer Ahammed, J. D. Roth, Sedigheh Jowzaee, Xiang Li, B. Huang, J. Y. Zhang, N. Yu, M. Shao, Y. X. Pan, G. Van Buren, Kejun Kang, L. V. Nogach, S. S. Shi, Xiaofeng Luo, I. Sakrejda, Guo-Liang Ma, Sumit R. Das, M. J. Skoby, G. Van Nieuwenhuizen, K. Poniatowska, R. S. Longacre, W. Solyst, Rene Bellwied, L. Fulek, Q. Y. Shou, J. Porter, L. C. Bland, M. Tokarev, Yang Yang, S. K. Gupta, Giacomo Contin, A. S. Hirsch, Xiaofeng Zhu, R. E. Tribble, Madan M. Aggarwal, R. Pak, Gerald W Hoffmann, D. Arkhipkin, Wei Xie, A. Hamed, P. Kravtsov, A. M. Schmah, Fuqiang Wang, Nasim, M. A.C. Lamont, R. Stock, S. Heppelmann, B. J. Summa, J. L. Drachenberg, Olga Evdokimov, A. Ogawa, Bedangadas Mohanty, M. R. Girard, C. Yang, Nihar Sahoo, Nilay Shah, G. Igo, J. Novak, C-Q. Li, D. K. Mishra, Jian Deng, A. Aparin, Jorn Henning Putschke, T. D. S. Stanislaus, X. C. Chen, G. Agakishiev, D. S. Gunarathne, J. B. Zhang, D. D. Koetke, B. Sharma, J. E. Draper, D. N. Svirida, A. Sarkar, H. H. Wieman, A. Manion, P. Huck, A. V. Brandin, M. J. Rehbein, R. P. Scharenberg, Christina Markert, J. Bouchet, S. Ramachandran, K. Kauder, O. Eyser, Xiangming Sun, Jay Roberts, D. Cebra, D. Smirnov, O. Rusnakova, H. S. Matis, K. Xin, K. D. Landry, Yu-Gang Ma, F. Videbæk, G. Webb, J. Butterworth, S. Kabana, M. M. Mondal, D. Kalinkin, P. Bhattarai, Isaac Upsal, H. W. Ke, Guannan Xie, Xuan Zhang, Sukalyan Chattopadhyay, L. K. Kosarzewski, B. Di Ruzza, W. W. Jacobs, Anthony Robert Timmins, Vipul Bairathi, J. Lauret, S. B. Nurushev, Y. Pandit, Z. Chang, S. Esumi, Adam Ryszard Kisiel, Y. F. Xu, N. Schmitz, L. Yi, Hanna Paulina Zbroszczyk, A. Vossen, H. J. Crawford, Hao Qiu, Z. H. Khan, I. K. Yoo, D. G. Underwood, R. Lednicky, A. M. Poskanzer, Z. Ye, J. W. Harris, L. Kochenda, T. Tarnowsky, P. Chaloupka, E. Shahaliev, Z. J. Xu, R. Reed, Z. Feng, M. Lomnitz, R. Haque, J. K. Adkins, Y. J. Sun, C. Dilks, H. G. Ritter, X. Huang, A. Kechechyan, N. K. Pruthi, Jaroslav Bielcik, M. Posik, S. Trentalange, D. L. Olvitt, R. Fatemi, Rafal Sikora, C. E. Flores, E. G. Judd, L. He, Q. Yang, Pradip Kumar Sahu, A. H. Tang, K. Krueger, T. Sugiura, H. M. Spinka, O. V. Rogachevskiy, B. Pawlik, A. Quintero, M. Zyzak, T. J. Humanic, I. Bunzarov, I. Kisel, A. Gibson, S. Zhang, K. Yip, J. S. Wang, Abdel Nasser Tawfik, Basanta Kumar Nandi, J. Cheng, R. R. Debbe, M. Cherney, R. Varma, B. S. Page, Bernd Surrow, Lokesh Kumar, V. A. Okorokov, J. H. Thomas, Hua Pei, D. P. Kikola, B. Stringfellow, S. K. Tripathy, L. C. De Silva, L. P. Zhou, W. B. Schmidke, C. A. Gagliardi, M. Stepanov, G. S. Averichev, Roli Esha, Zongye Zhang, I. G. Bordyuzhin, Jie Zhao, T. Lin, S. Horvat, Jana Bielcikova, J. L. Romero, Arka Chatterjee, W. Zha, E. Finch, Xuedong Bai, M. K. Mustafa, W. Guryn, Y. Li, S. Singha, J. Fedorisin, P. Federic, E. P. Sichtermann, T. Ullrich, C. M. Du, H. S. Xu, Y. Guo, Jongmin Lee, R. L. Ray, R. Ma, T. Ljubicic, Niseem Magdy, H. Caines, F. Liu, Miroslav Simko, Mariusz Przybycien, Siwei Luo, J. Jia, Muhammad Usman Ashraf, R. D. Majka, Sergey Voloshin, K. Jiang, J. Schambach, Yanjun Wu, W. Christie, Anik Gupta, Frank Jm Geurts, C. Zhong, E. C. Aschenauer, S. Margetis, Andrey Vasiliev, O. D. Tsai, L. Song, W. Q. Shen, X. Dong, Janet Elizabeth Seger, D. Garand, Sevil Salur, K. Meehan, Anju Bhasin, A. Sharma, T. Niida, A. Lebedev, S. McKinzie, Z. Shi, A. K. Bhati, D. Keane, Nikolai Smirnov, Zebo Tang, L. G. Efimov, T. K. Nayak, Leo Clifford Greiner, Y. Panebratsev, D. Grosnick, R. Aoyama, C. Perkins, N. Xu, P. Filip, P. Pile, G. D. Westfall, J. Rusnak, A. F. Kraishan, L. Ruan, T. Todoroki, Zhigang Xiao, T. Huang, P. Seyboth, Leszek Adamczyk, Yunpeng Liu, Derek Anderson, Z. W. Miller, D. Tlusty, N. G. Minaev, Y. Wang, Y. Fisyak, Lin Ma, K. Oh, Mukesh Sharma, G. Wang, Z. J. Sun, Robert Vertesi, P. Sorensen, L. Didenko, I. Chakaberia, J. C. Webb, James Brandenburg, P. V. Shanmuganathan, L. E. Dunkelberger, and A. A. Derevschikov

Subjects
Quark, Physics, 010308 nuclear & particles physics, General Physics and Astronomy, Charge (physics), 01 natural sciences, Electric charge, Charged particle, Electric field, Pseudorapidity, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract

We present the first measurement of charge-dependent directed flow in Cu+Au collisions at sqrt[s_{NN}]=200 GeV. The results are presented as a function of the particle transverse momentum and pseudorapidity for different centralities. A finite difference between the directed flow of positive and negative charged particles is observed that qualitatively agrees with the expectations from the effects of the initial strong electric field between two colliding ions with different nuclear charges. The measured difference in directed flow is much smaller than that obtained from the parton-hadron-string-dynamics model, which suggests that most of the electric charges, i.e., quarks and antiquarks, have not yet been created during the lifetime of the strong electric field, which is of the order of, or less than, 1 fm/c.

Published
2017

29. Calibration and performance of the STAR Muon Telescope Detector using cosmic rays

Author

W. J. Llope, Frank Jm Geurts, Y. Wang, M. J.M. Codrington, A. Jentsch, S. Mioduszewski, K. Xin, C. Yang, Zubayer Ahammed, M. Calderon De La Barca Sanchez, Y. J. Sun, A. Kesich, G. Eppley, B. Bowen, J. Cheng, X. J. Huang, Gerald W Hoffmann, Yuanji Li, J. Butterworth, A. Roy, Shuai Yang, Xiaofeng Zhu, L. Ruan, D. Cebra, Y. Mohamed, C. M. Du, H. F. Chen, P. Bhattarari, Saikat Biswas, C-Q. Li, A. Banerjee, C. E. Flores, B. C. Huang, T. Nussbaum, J. Schambach, H. Carson, Sukalyan Chattopadhyay, and Z. Xu

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Particle detector, law.invention, Nuclear physics, Telescope, law, Nuclear Experiment (nucl-ex), Nuclear Experiment, Instrumentation and Methods for Astrophysics (astro-ph.IM), Instrumentation, Physics, Muon, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Instrumentation and Detectors (physics.ins-det), Muon collider, Physics::Accelerator Physics, High Energy Physics::Experiment, Astrophysics - Instrumentation and Methods for Astrophysics, STAR detector, Lepton
Abstract

We report the timing and spatial resolution from the Muon Telescope Detector (MTD) installed in the STAR experiment at RHIC. Cosmic ray muons traversing the STAR detector have an average transverse momentum of 6 GeV/c. Due to their very small multiple scattering, these cosmic muons provide an ideal tool to calibrate the detectors and measure their timing and spatial resolution. The values obtained were ~100 ps and ~1-2 cm, respectively. These values are comparable to those obtained from cosmic-ray bench tests and test beams., Comment: 15 pages, 10 figures

Published
2014

30. Suppression of ϒ production in d+Au and Au+Au collisions at sNN=200 GeV

Author

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, J. Balewski, A. Banerjee, Z. Barnovska, D.R. Beavis, R. Bellwied, A. Bhasin, A.K. Bhati, P. Bhattarai, H. Bichsel, 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, 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, J. Chwastowski, M.J.M. Codrington, R. Corliss, 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, S. Dhamija, 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, R. Fatemi, S. Fazio, J. Fedorisin, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, C.A. Gagliardi, D.R. Gangadharan, D. Garand, F. Geurts, A. Gibson, M. Girard, S. Gliske, D. Grosnick, Y. Guo, A. Gupta, S. Gupta, W. Guryn, B. Haag, O. Hajkova, A. Hamed, L.-X. Han, R. Haque, J.W. Harris, J.P. Hays-Wehle, S. Heppelmann, K. Hill, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, B. Huang, H.Z. 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, W. Korsch, L. Kotchenda, 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, W. Leight, M.J. LeVine, C. Li, W. Li, X. Li, Y. Li, Z.M. Li, L.M. Lima, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, X. Luo, G.L. Ma, Y.G. Ma, D.M.M.D. Madagodagettige Don, 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.G. Munhoz, M.K. Mustafa, B.K. Nandi, Md. Nasim, T.K. Nayak, J.M. Nelson, L.V. Nogach, S.Y. Noh, J. Novak, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E.W. Oldag, R.A.N. Oliveira, M. Pachr, B.S. Page, S.K. Pal, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, W. Peryt, A. Peterson, P. Pile, M. Planinic, J. Pluta, D. Plyku, N. Poljak, J. Porter, A.M. Poskanzer, N.K. Pruthi, M. Przybycien, P.R. Pujahari, 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, 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, R.N. Singaraju, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, U.G. deSouza, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, J.R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, X. Sun, X.M. Sun, Y. Sun, Z. Sun, B. Surrow, D.N. Svirida, T.J.M. Symons, A. Szanto de Toledo, 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, J.A. Vanfossen, R. Varma, G.M.S. Vasconcelos, A.N. Vasiliev, R. Vertesi, F. Videbæk, Y.P. Viyogi, S. Vokal, A. Vossen, M. Wada, M. Walker, F. Wang, G. Wang, H. Wang, J.S. Wang, X.L. Wang, Y. Wang, G. Webb, J.C. Webb, G.D. Westfall, H. Wieman, G. Wimsatt, S.W. Wissink, R. Witt, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, H. 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, Y. Zawisza, 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, Nuclear and High Energy Physics, Meson, Upsilon meson, Parton, Nuclear matter, Nuclear physics, Deuterium, Quark–gluon plasma, High Energy Physics::Experiment, Rapidity, Atomic physics, Nuclear Experiment, STAR detector
Abstract

We report measurements of Upsilon meson production in p + p, d + Au, and Au + Au collisions using the STAR detector at RHIC. We compare the Upsilon yield to the measured cross section in p + p collisions in order to quantify any modifications of the yield in cold nuclear matter using d + Au data and in hot nuclear matter using Au + Au data separated into three centrality classes. Our p + p measurement is based on three times the statistics of our previous result. We obtain a nuclear modification factor for Upsilon (1S + 2S + 3S) in the rapidity range vertical bar y vertical bar < 1 in d + Au collisions of R-dAu = 0.79 +/- 0.24(stat.) +/- 0.03(syst.) +/- 0.10(p + p syst.). A comparison with models including shadowing and initial state parton energy loss indicates the presence of additional cold-nuclear matter suppression. Similarly, in the top 10% most-central Au + Au collisions, we measure a nuclear modification factor of R-AA = 0.49 +/- 0.1(stat.) +/- 0.02(syst.) +/- 0.06(p + p syst.), which is a larger suppression factor than that seen in cold nuclear matter. Our results are consistent with complete suppression of excited-state Upsilon mesons in Au + Au collisions. The additional suppression in Au + Au is consistent with the level expected in model calculations that include the presence of a hot, deconfined Quark-Gluon Plasma. However, understanding the suppression seen in d + Au is still needed before any definitive statements about the nature of the suppression in Au + Au can be made. (C) 2014 The Authors. Published by Elsevier B.V.

Published
2014

31. Υ production in U + U collisions at sNN=193 GeV measured with the STAR experiment

Author

Arka Chatterjee, Q. H. Xu, J. Xu, M. K. Mustafa, J. C. Dunlop, L. Wen, Y. Li, S. Singha, L. C. Bland, Nasim, M. Tokarev, Yang Yang, J. K. Adkins, Zubayer Ahammed, Wei Xie, R. Fatemi, L. He, T. D. S. Stanislaus, K. Krueger, A. Aparin, H. H. Wieman, W. Christie, B. Huang, Siwei Luo, Y. Pandit, F. Videbæk, Andrey Vasiliev, N. Schmitz, Q. Y. Shou, A. M. Poskanzer, Z. Ye, E. Shahaliev, X. Huang, A. Kechechyan, D. N. Svirida, Pradip Kumar Sahu, Y. Fisyak, G. Odyniec, G. Webb, Anik Gupta, M. Cherney, Lokesh Kumar, Hua Pei, Lin Ma, G. Eppley, M. Calderon De La Barca Sanchez, W. Guryn, A. I. Hamad, Sedigheh Jowzaee, S. K. Tripathy, K. Oh, Y. Zoulkarneeva, Michal Sumbera, Janet Elizabeth Seger, R. Pak, Sukalyan Chattopadhyay, R. S. Longacre, Y. Panebratsev, Xiang Li, D. Grosnick, W. J. Llope, Frank Jm Geurts, Z. H. Khan, R. Vertesi, S. W. Wissink, T. J. Humanic, Mukesh Sharma, J. Pluta, W. Li, Y. Zhang, G. Wang, K. Poniatowska, R. Aoyama, Alexander Jentsch, F. Liu, J. Jia, Mariusz Przybycien, J. Fedorisin, Abdel Nasser Tawfik, R. Witt, Z. Feng, M. Lomnitz, J. D. Roth, G. Igo, J. Novak, B. J. Summa, S. K. Gupta, Giacomo Contin, J. W. Harris, Rene Bellwied, Samuel Heppelmann, A. Attri, S. Mioduszewski, Yinina Ma, O. D. Tsai, Jaroslav Bielcik, J. Engelage, B. Sharma, W. Solyst, J. Bouchet, Zongye Zhang, R. E. Tribble, Z. J. Sun, I. Sakrejda, Junjie Zhang, Bedangadas Mohanty, K. D. Landry, J. B. Zhang, D. D. Koetke, J. E. Draper, Nihar Sahoo, Donald M. McDonald, X. C. Chen, G. Nigmatkulov, K. Meehan, P. Huck, M. J. Skoby, Jana Bielcikova, M. Shao, Y. X. Pan, G. Van Buren, R. D. Majka, R. Varma, Prithwish Tribedy, B. K. Srivastava, D. L. Olvitt, I. G. Bordyuzhin, S. Ramachandran, B. S. Page, O. Eyser, L. Song, W. Q. Shen, J. Butterworth, Gerald W Hoffmann, M. A.C. Lamont, Y. F. Xu, M. M. Mondal, Roli Esha, J. Schambach, A. H. Tang, E. P. Sichtermann, Anthony Robert Timmins, Adam Ryszard Kisiel, J. M. Landgraf, L. Fulek, T. Sugiura, J. L. Romero, B. Pawlik, D. P. Kikola, Muhammad Usman Ashraf, S. H. Zhang, A. Sharma, B. Stringfellow, Rihan Haque, L. Yi, D. Garand, S. S. Shi, I. Bunzarov, H. Z. Huang, S. Vokal, O. V. Rogachevskiy, A. Quintero, Jie Zhao, T. Lin, S. Horvat, J. Rusnak, E. Finch, H. J. Crawford, P. Bhattarai, Anju Bhasin, Xuedong Bai, M. Strikhanov, Sergey Voloshin, Isaac Upsal, Sevil Salur, Y. Wang, A. Gibson, A. F. Kraishan, P. Seyboth, S. McKinzie, M. Simko, P. Sorensen, T. Niida, J. L. Drachenberg, Xiangming Sun, H. G. Ritter, L. Ruan, I. K. Yoo, Shangfeng Yang, J. H. Chen, Olga Evdokimov, A. Lebedev, A. K. Bhati, D. Keane, Rafal Sikora, K. Kauder, Guannan Xie, Xuan Zhang, J. Sandweiss, Basanta Kumar Nandi, D. A. Morozov, W. Zha, Z. Shi, Zebo Tang, A. Sarkar, J. M. Campbell, K. Jiang, Nikolai Smirnov, R. Stock, L. G. Efimov, Xiaofeng Luo, Hanna Paulina Zbroszczyk, Guo-Liang Ma, C-Q. Li, T. Todoroki, Leszek Adamczyk, Jay Roberts, P. Federic, Nilay Shah, Z. W. Miller, Leo Clifford Greiner, V. A. Okorokov, Bernd Surrow, C. E. Flores, E. G. Judd, C. Yang, Yanjun Wu, M. J. Rehbein, Jorn Henning Putschke, T. K. Nayak, R. P. Scharenberg, Christina Markert, L. Didenko, I. Chakaberia, Y. J. Sun, C. Dilks, Hao Qiu, A. S. Hirsch, D. Smirnov, O. Rusnakova, D. G. Underwood, H. W. Ke, H. S. Matis, A. V. Brandin, Q. Yang, C. Perkins, R. Reed, K. Xin, P. Kravtsov, A. M. Schmah, D. Tlusty, T. G. Dedovich, S. Esumi, Maksym Zyzak, L. K. Kosarzewski, Zhigang Xiao, W. B. Schmidke, T. Huang, J. Cheng, S. B. Nurushev, C. A. Gagliardi, N. K. Pruthi, L. C. De Silva, S. Fazio, Vipul Bairathi, P. Chaloupka, W. W. Jacobs, Yunpeng Liu, Derek Anderson, J. Lauret, Z. J. Xu, N. G. Minaev, T. Ullrich, M. R. Girard, J. C. Webb, S. Trentalange, N. Xu, P. Filip, R. Lednicky, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, P. Pile, G. D. Westfall, L. Kochenda, J. Thäder, T. Tarnowsky, D. Arkhipkin, A. Hamed, K. Yip, J. S. Wang, A. Manion, James Brandenburg, D. Kalinkin, P. V. Shanmuganathan, R. R. Debbe, N. Yu, L. E. Dunkelberger, Kejun Kang, L. V. Nogach, Sumit R. Das, A. Vossen, A. A. Derevschikov, G. Van Nieuwenhuizen, C. M. Du, Xiaofeng Zhu, H. S. Xu, T. Nonaka, A. Ogawa, C. Zhong, E. C. Aschenauer, S. Margetis, X. Dong, Y. Guo, Jongmin Lee, R. L. Ray, R. Ma, T. Ljubicic, Niseem Magdy, H. Caines, J. H. Thomas, L. P. Zhou, M. Stepanov, G. S. Averichev, J. Porter, Ivan Kisel, Z. Chang, I. G. Alekseev, M. A. Lisa, J. C. Mei, Jian Deng, G. Agakishiev, D. S. Gunarathne, M. Posik, D. Cebra, H. M. Spinka, and S. Kabana

Subjects
Physics, Time projection chamber, Meson, 010308 nuclear & particles physics, Drell–Yan process, 01 natural sciences, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, Mass spectrum, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Nucleon, Glauber, Crystal Ball
Abstract

We present a measurement of the inclusive production of. mesons in U + U collisions at root s(NN) = 193 GeV at midrapidity (vertical bar y vertical bar < 1). Previous studies in central Au+Au collisions at root s(NN) = 200 GeV show a suppression of Upsilon (1S+2S+3S) production relative to expectations from the Upsilon yield in p+p collisions scaled by the number of binary nucleon-nucleon collisions (N-coll), with an indication that the.(1S) state is also suppressed. The present measurement extends the number of participant nucleons in the collision (N-part) by 20% compared to Au+Au collisions, and allows us to study a system with higher energy density. We observe a suppression in both the Upsilon (1S+2S+3S) and Upsilon (1S) yields in central U+U data, which consolidates and extends the previously observed suppression trend in Au+Au collisions.

Published
2016

33. Authentication algorithm of secure digital halftone watermark based on SM4 algorithm

Author

K. Xin, S. X. Fan, J. P. Pang, A. L. Wang, L. Guo, S. K. Li, and F. P. Liu

Subjects
SM4 Algorithm, Authentication, Halftone, business.industry, Computer science, Data_MISCELLANEOUS, ComputingMilieux_LEGALASPECTSOFCOMPUTING, Computer vision, Watermark, Artificial intelligence, business
Abstract

With the development of information technology, the problem of piracy is getting worse. In order to increase the security of watermark information, this paper has proposed a security watermark authentication algorithm based on SM4 encryption algorithms, which is embedded in the frame of the vehicle image when the watermark information is encrypted. SM4 is the block cipher standard adopted in WAPI of wlan standard in China, and then adopted by commercial cipher standard in China. It is characterized by adding nonlinear changes in the calculation process, which greatly improves the security of the algorithm. Because the watermark information is embedded in the feature points of the structure, which is relatively stable and not easy to change, so the robustness of the watermark is enhanced to a certain extent. Through the test, the algorithm can encrypt and authenticate the watermark information.

Published
2019

34. Research on Robust Algorithm of Color Holographic Watermark Based on DCT-DWT

Author

F P Liu, S X Fan, K Xin, S K Li, J P Pang, L Guo, and A L Wang

Subjects
Computer science, Data_MISCELLANEOUS, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Holography, Watermark, law.invention, Image (mathematics), Wavelet, Watermark embedding, law, Discrete cosine transform, Embedding, Spatial domain, Algorithm
Abstract

Based on the DCT-DWT algorithm, a new method for embedding color holographic watermarks into color carrier images is proposed. The color watermark image and the color carrier image are divided into three channels: R, G, and B. The hologram is generated for each channel’s watermark image by a four-step phase shift method, and the hologram is subjected to Arnold transformation. The carrier image is decomposed by first-order wavelet, the watermark embedding space is changed from spatial domain to transform domain, low-frequency components are extracted and segmented, the scrambled holographic watermark images are respectively sub-channel embedded in the carrier image by discrete cosine transform. The experimental results show that the algorithm is robust and can resist some conventional attacks. In this algorithm, the watermark image is transformed into a hologram, which increases the difficulty of decryption.

Published
2019

35. The STAR Collaboration

Author

L. Adamczyk, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, A.V. Alakhverdyants, I. Alekseev, J. Alford, B.D. Anderson, C.D. Anson, D. Arkhipkin, E. Aschenauer, G.S. Averichev, J. Balewski, A. Banerjee, Z. Barnovska, D.R. Beavis, R. Bellwied, M.J. Betancourt, R.R. Betts, A. Bhasin, A.K. Bhati, H. Bichsel, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, W. Borowski, J. Bouchet, A.V. Brandin, S.G. Brovko, E. Bruna, S. Bültmann, I. Bunzarov, T.P. Burton, J. Butterworth, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, R. Cendejas, M.C. Cervantes, P. Chaloupka, Z. Chang, S. Chattopadhyay, H.F. Chen, J.H. Chen, J.Y. Chen, L. Chen, J. Cheng, M. Cherney, A. Chikanian, W. Christie, P. Chung, J. Chwastowski, M.J.M. Codrington, R. Corliss, 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, R. Derradi de Souza, S. Dhamija, L. Didenko, F. Ding, A. Dion, P. Djawotho, X. Dong, J.L. Drachenberg, J.E. Draper, C.M. Du, L.E. Dunkelberger, J.C. Dunlop, L.G. Efimov, M. Elnimr, J. Engelage, G. Eppley, L. Eun, O. Evdokimov, R. Fatemi, S. Fazio, J. Fedorisin, R.G. Fersch, P. Filip, E. Finch, Y. Fisyak, C.A. Gagliardi, D.R. Gangadharan, F. Geurts, A. Gibson, S. Gliske, Y.N. Gorbunov, O.G. Grebenyuk, D. Grosnick, S. Gupta, W. Guryn, B. Haag, O. Hajkova, A. Hamed, L-X. Han, J.W. Harris, J.P. Hays-Wehle, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, B. Huang, H.Z. Huang, P. Huck, T.J. Humanic, L. Huo, G. Igo, W.W. Jacobs, C. Jena, J. Joseph, E.G. Judd, S. Kabana, K. Kang, J. Kapitan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, A. Kesich, D.P. Kikola, J. Kiryluk, I. Kisel, A. Kisiel, V. Kizka, S.R. Klein, D.D. Koetke, T. Kollegger, J. Konzer, I. Koralt, L. Koroleva, W. Korsch, L. Kotchenda, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, M.A.C. Lamont, J.M. Landgraf, S. LaPointe, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, W. Leight, M.J. LeVine, C. Li, L. Li, W. Li, X. Li, Y. Li, Z.M. Li, L.M. Lima, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, Y. Lu, X. Luo, A. Luszczak, G.L. Ma, Y.G. Ma, D.M.M.D. Madagodagettige Don, D.P. Mahapatra, R. Majka, O.I. Mall, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, T.S. McShane, S. Mioduszewski, M.K. Mitrovski, Y. Mohammed, B. Mohanty, M.M. Mondal, B. Morozov, M.G. Munhoz, M.K. Mustafa, M. Naglis, B.K. Nandi, Md. Nasim, T.K. Nayak, J.M. Nelson, L.V. Nogach, J. Novak, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E.W. Oldag, R.A.N. Oliveira, D. Olson, P. Ostrowski, M. Pachr, B.S. Page, S.K. Pal, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, W. Peryt, P. Pile, M. Planinic, J. Pluta, D. Plyku, N. Poljak, J. Porter, A.M. Poskanzer, C.B. Powell, C. Pruneau, N.K. Pruthi, M. Przybycien, P.R. Pujahari, J. Putschke, H. Qiu, R. Raniwala, S. Raniwala, R.L. Ray, R. Redwine, R. Reed, C.K. Riley, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.F. Ross, L. Ruan, J. Rusnak, 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, B. Schmidke, N. Schmitz, T.R. Schuster, J. Seele, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, M. Shao, B. Sharma, M. Sharma, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R.N. Singaraju, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, U.G. deSouza, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, S.G. Steadman, J.R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M.C. Suarez, M. Sumbera, X.M. Sun, Y. Sun, Z. Sun, B. Surrow, D.N. Svirida, T.J.M. Symons, A. Szanto de Toledo, J. Takahashi, A.H. Tang, Z. Tang, L.H. Tarini, T. Tarnowsky, D. Thein, J.H. Thomas, J. Tian, 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, J.A. Vanfossen, R. Varma, G.M.S. Vasconcelos, F. Videbæk, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, M. Wada, F. Wang, G. Wang, H. Wang, J.S. Wang, Q. Wang, X.L. Wang, Y. Wang, G. Webb, J.C. Webb, G.D. Westfall, C. Whitten, H. Wieman, S.W. Wissink, R. Witt, W. Witzke, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, H. Xu, N. Xu, Q.H. Xu, W. Xu, Y. Xu, Z. Xu, L. Xue, Y. Yang, P. Yepes, Y. Yi, K. Yip, I-K. Yoo, M. Zawisza, H. Zbroszczyk, J.B. Zhang, S. Zhang, W.M. 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, Nuclear and High Energy Physics, Astronomy, Star (graph theory)
Published
2013

36. J/ψ production at high transverse momenta in p+p and Au + Au collisions at sNN=200 GeV

Author

L. Adamczyk, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, A.V. Alakhverdyants, I. Alekseev, J. Alford, C.D. Anson, D. Arkhipkin, E. Aschenauer, G.S. Averichev, J. Balewski, A. Banerjee, Z. Barnovska, D.R. Beavis, R. Bellwied, M.J. Betancourt, R.R. Betts, A. Bhasin, A.K. Bhati, H. Bichsel, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, W. Borowski, J. Bouchet, A.V. Brandin, S.G. Brovko, E. Bruna, S. Bültmann, I. Bunzarov, T.P. Burton, J. Butterworth, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, R. Cendejas, M.C. Cervantes, P. Chaloupka, Z. Chang, S. Chattopadhyay, H.F. Chen, J.H. Chen, J.Y. Chen, L. Chen, J. Cheng, M. Cherney, A. Chikanian, W. Christie, P. Chung, J. Chwastowski, M.J.M. Codrington, R. Corliss, 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, R. Derradi de Souza, S. Dhamija, L. Didenko, F. Ding, A. Dion, P. Djawotho, X. Dong, J.L. Drachenberg, J.E. Draper, C.M. Du, L.E. Dunkelberger, J.C. Dunlop, L.G. Efimov, M. Elnimr, J. Engelage, G. Eppley, L. Eun, O. Evdokimov, R. Fatemi, S. Fazio, J. Fedorisin, R.G. Fersch, P. Filip, E. Finch, Y. Fisyak, C.A. Gagliardi, D.R. Gangadharan, F. Geurts, A. Gibson, S. Gliske, Y.N. Gorbunov, O.G. Grebenyuk, D. Grosnick, S. Gupta, W. Guryn, B. Haag, O. Hajkova, A. Hamed, L.-X. Han, J.W. Harris, J.P. Hays-Wehle, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, B. Huang, H.Z. Huang, P. Huck, T.J. Humanic, L. Huo, G. Igo, W.W. Jacobs, C. Jena, E.G. Judd, S. Kabana, K. Kang, J. Kapitan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, A. Kesich, D.P. Kikola, J. Kiryluk, I. Kisel, A. Kisiel, V. Kizka, S.R. Klein, D.D. Koetke, T. Kollegger, J. Konzer, I. Koralt, L. Koroleva, W. Korsch, L. Kotchenda, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, M.A.C. Lamont, J.M. Landgraf, S. LaPointe, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, W. Leight, M.J. LeVine, C. Li, L. Li, W. Li, X. Li, Y. Li, Z.M. Li, L.M. Lima, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, Y. Lu, X. Luo, A. Luszczak, G.L. Ma, Y.G. Ma, D.M.M.D. Madagodagettige Don, D.P. Mahapatra, R. Majka, O.I. Mall, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, T.S. McShane, S. Mioduszewski, M.K. Mitrovski, Y. Mohammed, B. Mohanty, M.M. Mondal, B. Morozov, M.G. Munhoz, M.K. Mustafa, M. Naglis, B.K. Nandi, Md. Nasim, T.K. Nayak, J.M. Nelson, L.V. Nogach, J. Novak, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E.W. Oldag, R.A.N. Oliveira, D. Olson, P. Ostrowski, M. Pachr, B.S. Page, S.K. Pal, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, W. Peryt, P. Pile, M. Planinic, J. Pluta, D. Plyku, N. Poljak, J. Porter, A.M. Poskanzer, C.B. Powell, C. Pruneau, N.K. Pruthi, M. Przybycien, P.R. Pujahari, J. Putschke, H. Qiu, R. Raniwala, S. Raniwala, R.L. Ray, R. Redwine, R. Reed, C.K. Riley, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.F. Ross, L. Ruan, J. Rusnak, 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, B. Schmidke, N. Schmitz, T.R. Schuster, J. Seele, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, M. Shao, B. Sharma, M. Sharma, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R.N. Singaraju, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, U.G. deSouza, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, S.G. Steadman, J.R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M.C. Suarez, M. Sumbera, X.M. Sun, Y. Sun, Z. Sun, B. Surrow, D.N. Svirida, T.J.M. Symons, A. Szanto de Toledo, J. Takahashi, A.H. Tang, Z. Tang, L.H. Tarini, T. Tarnowsky, D. Thein, J.H. Thomas, J. Tian, 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, J.A. Vanfossen, R. Varma, G.M.S. Vasconcelos, F. Videbæk, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, M. Wada, F. Wang, G. Wang, H. Wang, J.S. Wang, Q. Wang, X.L. Wang, Y. Wang, G. Webb, J.C. Webb, G.D. Westfall, C. Whitten, H. Wieman, S.W. Wissink, R. Witt, W. Witzke, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, H. Xu, N. Xu, Q.H. Xu, W. Xu, Y. Xu, Z. Xu, L. Xue, Y. Yang, P. Yepes, Y. Yi, K. Yip, I.-K. Yoo, M. Zawisza, H. Zbroszczyk, J.B. 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
Nuclear physics, Physics, Nuclear and High Energy Physics, Transverse plane, Particle physics, Production (computer science), Nuclear Experiment, Quarkonium, Spectral line
Abstract

We report J / ψ spectra for transverse momenta p T > 5 GeV / c at mid-rapidity in p + p and Au + Au collisions at s NN = 200 GeV . The inclusive J / ψ spectrum and the extracted B-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the J / ψ yields for p T > 5 GeV / c in 0–30% central Au + Au collisions relative to the p + p yield scaled by the number of binary nucleon–nucleon collisions in Au + Au collisions. In 30–60% mid-central collisions, no such suppression is observed. The level of suppression is consistently less than that of high- p T π ± and low- p T J / ψ at RHIC and high- p T J / ψ at the LHC.

Published
2013

37. Single spin asymmetry AN in polarized proton–proton elastic scattering at s=200 GeV

Author

L. Adamczyk, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, A.V. Alakhverdyants, I. Alekseev, J. Alford, C.D. Anson, D. Arkhipkin, E. Aschenauer, G.S. Averichev, J. Balewski, A. Banerjee, Z. Barnovska, D.R. Beavis, R. Bellwied, M.J. Betancourt, R.R. Betts, A. Bhasin, A.K. Bhati, H. Bichsel, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, W. Borowski, J. Bouchet, A.V. Brandin, S.G. Brovko, E. Bruna, S. Bültmann, I. Bunzarov, T.P. Burton, J. Butterworth, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, R. Cendejas, M.C. Cervantes, P. Chaloupka, Z. Chang, S. Chattopadhyay, H.F. Chen, J.H. Chen, J.Y. Chen, L. Chen, J. Cheng, M. Cherney, A. Chikanian, W. Christie, P. Chung, J. Chwastowski, M.J.M. Codrington, R. Corliss, 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, R. Derradi de Souza, S. Dhamija, L. Didenko, F. Ding, A. Dion, P. Djawotho, X. Dong, J.L. Drachenberg, J.E. Draper, C.M. Du, L.E. Dunkelberger, J.C. Dunlop, L.G. Efimov, M. Elnimr, J. Engelage, G. Eppley, L. Eun, O. Evdokimov, R. Fatemi, S. Fazio, J. Fedorisin, R.G. Fersch, P. Filip, E. Finch, Y. Fisyak, C.A. Gagliardi, D.R. Gangadharan, F. Geurts, A. Gibson, S. Gliske, Y.N. Gorbunov, O.G. Grebenyuk, D. Grosnick, S. Gupta, W. Guryn, B. Haag, O. Hajkova, A. Hamed, L.-X. Han, J.W. Harris, J.P. Hays-Wehle, S. Heppelmann, A. Hirsch, G.W. Hoffmann, D.J. Hofman, S. Horvat, B. Huang, H.Z. Huang, P. Huck, T.J. Humanic, L. Huo, G. Igo, W.W. Jacobs, C. Jena, E.G. Judd, S. Kabana, K. Kang, J. Kapitan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, A. Kesich, D.P. Kikola, J. Kiryluk, I. Kisel, A. Kisiel, V. Kizka, S.R. Klein, D.D. Koetke, T. Kollegger, J. Konzer, I. Koralt, L. Koroleva, W. Korsch, L. Kotchenda, P. Kravtsov, K. Krueger, I. Kulakov, L. Kumar, M.A.C. Lamont, J.M. Landgraf, S. LaPointe, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, W. Leight, M.J. LeVine, C. Li, L. Li, W. Li, X. Li, Y. Li, Z.M. Li, L.M. Lima, M.A. Lisa, F. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, Y. Lu, X. Luo, A. Luszczak, G.L. Ma, Y.G. Ma, D.M.M.D. Madagodagettige Don, D.P. Mahapatra, R. Majka, O.I. Mall, S. Margetis, C. Markert, H. Masui, H.S. Matis, D. McDonald, T.S. McShane, S. Mioduszewski, M.K. Mitrovski, Y. Mohammed, B. Mohanty, M.M. Mondal, B. Morozov, M.G. Munhoz, M.K. Mustafa, M. Naglis, B.K. Nandi, Md. Nasim, T.K. Nayak, J.M. Nelson, L.V. Nogach, J. Novak, G. Odyniec, A. Ogawa, K. Oh, A. Ohlson, V. Okorokov, E.W. Oldag, R.A.N. Oliveira, D. Olson, P. Ostrowski, M. Pachr, B.S. Page, S.K. Pal, Y.X. Pan, Y. Pandit, Y. Panebratsev, T. Pawlak, B. Pawlik, H. Pei, C. Perkins, W. Peryt, P. Pile, M. Planinic, J. Pluta, D. Plyku, N. Poljak, J. Porter, A.M. Poskanzer, C.B. Powell, C. Pruneau, N.K. Pruthi, M. Przybycien, P.R. Pujahari, J. Putschke, H. Qiu, R. Raniwala, S. Raniwala, R.L. Ray, R. Redwine, R. Reed, C.K. Riley, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, J.F. Ross, L. Ruan, J. Rusnak, 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, B. Schmidke, N. Schmitz, T.R. Schuster, J. Seele, J. Seger, P. Seyboth, N. Shah, E. Shahaliev, M. Shao, B. Sharma, M. Sharma, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R.N. Singaraju, M.J. Skoby, D. Smirnov, N. Smirnov, D. Solanki, P. Sorensen, U.G. deSouza, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, S.G. Steadman, J.R. Stevens, R. Stock, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M.C. Suarez, M. Sumbera, X.M. Sun, Y. Sun, Z. Sun, B. Surrow, D.N. Svirida, T.J.M. Symons, A. Szanto de Toledo, J. Takahashi, A.H. Tang, Z. Tang, L.H. Tarini, T. Tarnowsky, D. Thein, J.H. Thomas, J. Tian, 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, J.A. Vanfossen, R. Varma, G.M.S. Vasconcelos, F. Videbæk, Y.P. Viyogi, S. Vokal, S.A. Voloshin, A. Vossen, M. Wada, F. Wang, G. Wang, H. Wang, J.S. Wang, Q. Wang, X.L. Wang, Y. Wang, G. Webb, J.C. Webb, G.D. Westfall, C. Whitten, H. Wieman, S.W. Wissink, R. Witt, W. Witzke, Y.F. Wu, Z. Xiao, W. Xie, K. Xin, H. Xu, N. Xu, Q.H. Xu, W. Xu, Y. Xu, Z. Xu, L. Xue, Y. Yang, P. Yepes, Y. Yi, K. Yip, I.-K. Yoo, M. Zawisza, H. Zbroszczyk, J.B. 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, Elastic scattering, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Hadron, 01 natural sciences, Nuclear physics, Scattering amplitude, Pomeron, Amplitude, 0103 physical sciences, High Energy Physics::Experiment, Spin-flip, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract

We report a high precision measurement of the transverse single spin asymmetry A(N) at the center of mass energy root s = 200 GeV in elastic proton-proton scattering by the STAR experiment at RHIC. The A(N) was measured in the four-momentum transfer squared t range 0.003

Published
2013

38. Measurement of elliptic flow of light nuclei atsNN=200, 62.4, 39, 27, 19.6, 11.5, and 7.7 GeV at the BNL Relativistic Heavy Ion Collider

Author

A. V. Brandin, K. Xin, J. L. Romero, Amal Sarkar, Bernd Surrow, Vipul Bairathi, Xuedong Bai, D. Kalinkin, M. R. Girard, S. Heppelmann, B. J. Summa, J. C. Dunlop, L. Wen, W. B. Schmidke, P. Bhattarai, Nasim, B. Pawlik, K. Poniatowska, Zubayer Ahammed, C. A. Gagliardi, S. Ramachandran, N. Xu, P. Filip, O. Eyser, S. K. Gupta, Giacomo Contin, Qi Yang, Q. H. Xu, J. Xu, P. Sorensen, Y. J. Sun, James Brandenburg, D. Tlusty, J. Y. Zhang, N. Yu, L. V. Nogach, C. Dilks, Sumit R. Das, M. Calderon De La Barca Sanchez, A. I. Hamad, Roli Esha, M. Shao, Y. X. Pan, G. Van Buren, X. C. Chen, Q. Y. Shou, P. Pile, G. D. Westfall, P. V. Shanmuganathan, S. Kabana, Madan M. Aggarwal, Fuqiang Wang, D. K. Mishra, Jie Zhao, S. Horvat, S. S. Shi, A. Gupta, T. Tarnowsky, Z. H. Khan, R. Pak, Wei Xie, P. Huck, L. E. Dunkelberger, I. Sakrejda, J. H. Thomas, Bedangadas Mohanty, J. M. Campbell, T. G. Dedovich, Guannan Xie, Xuan Zhang, A. Aparin, Anthony Robert Timmins, A. Gibson, G. Eppley, Rihan Haque, J. Engelage, G. Nigmatkulov, Adam Ryszard Kisiel, L. P. Zhou, A. Vossen, Manish Sharma, Y. Pandit, H. J. Crawford, W. Zha, H. Z. Huang, A. A. Derevschikov, S. Vokal, J. M. Landgraf, Abdel Nasser Tawfik, N. Schmitz, E. Shahaliev, M. Strikhanov, R. Witt, Y. Zoulkarneeva, C. Zhong, J. Pluta, M. Zyzak, R. S. Longacre, W. Li, S. McKinzie, R. Varma, J. K. Adkins, S. Mioduszewski, G. Odyniec, J. Sandweiss, R. Fatemi, D. G. Underwood, Zebo Tang, J. Rusnak, A. F. Kraishan, L. He, Arka Chatterjee, Hanna Paulina Zbroszczyk, Jaroslav Bielcik, B. S. Page, Haiyan Wang, Rene Bellwied, Donald M. McDonald, Shangfeng Yang, D. P. Kikola, L. Ruan, J. Thäder, Prithwish Tribedy, B. K. Srivastava, Leo Clifford Greiner, Jie Zhang, I. Upsal, Y. F. Wu, B. Stringfellow, X. M. Sun, J. H. Chen, G. S. Averichev, Basanta Kumar Nandi, R. E. Tribble, S. Zhang, Olga Evdokimov, C. Perkins, G. Igo, J. Porter, J. W. Harris, J. Novak, B. Sharma, J. Bouchet, C. Yang, T. Todoroki, J. Cheng, Jiangyong Jia, O. V. Rogachevskiy, Nilay Shah, H. J. Jang, Gerald W Hoffmann, J. C. Webb, M. Cherney, Michal Sumbera, V. A. Okorokov, D. A. Morozov, L. C. De Silva, Hua Pei, Jay Roberts, Ivan Kisel, M. K. Mustafa, S. K. Tripathy, A. M. Poskanzer, D. D. Koetke, K. D. Landry, K. Kauder, J. Butterworth, M. A. C. Lamont, S. B. Nurushev, Hao Qiu, W. Solyst, Zhigang Xiao, M. J. Skoby, Frank Jm Geurts, K. Krueger, S. W. Wissink, P. Yepes, Y. Zhang, T. Huang, X. G. Luo, B. Di Ruzza, Jana Bielcikova, A. H. Tang, Y. Li, T. J. Humanic, D. Arkhipkin, A. Hamed, B. Huang, J. E. Draper, K. Meehan, N. G. Minaev, Robert Vertesi, Jian Deng, K. Yip, G. Agakishiev, D. S. Gunarathne, I. Bunzarov, D. Cebra, Z. Chang, J. S. Wang, W. Guryn, R. R. Debbe, I. K. Yoo, L. Didenko, I. Chakaberia, N. K. Pruthi, P. Chaloupka, Ting Lin, I. G. Alekseev, M. M. Mondal, C. E. Flores, E. G. Judd, M. A. Lisa, J. C. Mei, S. Trentalange, M. Posik, W. J. Llope, Sergey Voloshin, H. M. Spinka, Lokesh Kumar, K. Jiang, Y. Wang, J. Fedorisin, Alexander Jentsch, P. Federic, Maxence Vandenbroucke, A. Attri, S. Y. Noh, Yu-Gang Ma, J. Putschke, Xiaofeng Zhu, A. Ogawa, C-Q. Li, R. P. Scharenberg, Christina Markert, O. Rusnakova, H. S. Matis, L. K. Kosarzewski, W. W. Jacobs, J. Lauret, R. Lednicky, L. Kochenda, S. Fazio, Zongye Zhang, I. G. Bordyuzhin, W. Christie, M. Tokarev, Yang Yang, Subhash Singha, Andrey Vasiliev, T. D. S. Stanislaus, H. H. Wieman, O. D. Tsai, Z. Ye, X. Huang, A. Kechechyan, Pradip Kumar Sahu, X.G. Li, L. Song, H. W. Ke, L. Fulek, W. Q. Shen, Janet Elizabeth Seger, M. Stepanov, H. G. Ritter, Rafal Sikora, D. Garand, L. C. Bland, Y. F. Xu, Sevil Salur, G. J. van Nieuwenhuizen, F. Liu, Miroslav Simko, D. N. Svirida, Y. Fisyak, Y. Panebratsev, D. L. Olvitt, D. Grosnick, Lin Ma, K. Oh, Z. Z. Xu, Nikita Smirnov, A. K. Bhati, D. Keane, R. Stock, L. G. Efimov, R. D. Majka, J. L. Drachenberg, T. K. Nayak, P. Seyboth, J. Schambach, Anju Bhasin, Leszek Adamczyk, K. Kang, T. Niida, A. Lebedev, Guo-Liang Ma, Z. Shi, N. R. Sahoo, Li Yi, A. S. Hirsch, P. Kravtsov, G. Wang, A. M. Schmah, Dmitry Smirnov, Z. J. Sun, F. Videbæk, G. Webb, Sukalyan Chattopadhyay, Z. Feng, M. Lomnitz, E. P. Sichtermann, Rashmi Raniwala, T. Ullrich, C. M. Du, A. Manion, H. S. Xu, Y. Guo, Jongmin Lee, R. L. Ray, R. Ma, T. Ljubicic, Niseem Magdy, H. Caines, Sudhir Raniwala, A. Quintero, E. C. Aschenauer, S. Margetis, and X. Dong

Subjects
Mass number, Physics, Nuclear physics, Light nucleus, Particle physics, 010308 nuclear & particles physics, 0103 physical sciences, Chatterjee, Elliptic flow, 010306 general physics, Relativistic Heavy Ion Collider, 01 natural sciences
Abstract

Author(s): Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Aparin, A; Arkhipkin, D; Aschenauer, EC; Attri, A; Averichev, GS; Bai, X; Bairathi, V; Bellwied, R; Bhasin, A; Bhati, AK; Bhattarai, P; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Bouchet, J; Brandenburg, JD; Brandin, AV; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, Z; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; De Silva, LC; Debbe, RR; Dedovich, TG; Deng, J; Derevschikov, AA; Di Ruzza, B; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Draper, JE; Du, CM; Dunkelberger, LE; Dunlop, JC; Efimov, LG; Engelage, J; Eppley, G; Esha, R; Evdokimov, O; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Feng, Z; Filip, P; Fisyak, Y; Flores, CE; Fulek, L; Gagliardi, CA; Garand, D; Geurts, F; Gibson, A; Girard, M; Greiner, L; Grosnick, D; Gunarathne, DS; Guo, Y; Gupta, S; Gupta, A; Guryn, W; Hamad, AI | Abstract: We present measurements of second-order azimuthal anisotropy (v2) at midrapidity (|y|l1.0) for light nuclei d,t,He3 (for sNN=200, 62.4, 39, 27, 19.6, 11.5, and 7.7 GeV) and antinuclei d; (sNN=200, 62.4, 39, 27, and 19.6 GeV) and Hē3 (sNN=200 GeV) in the STAR (Solenoidal Tracker at RHIC) experiment. The v2 for these light nuclei produced in heavy-ion collisions is compared with those for p and p. We observe mass ordering in nuclei v2(pT) at low transverse momenta (pTl2.0 GeV/c). We also find a centrality dependence of v2 for d and d. The magnitude of v2 for t and He3 agree within statistical errors. Light-nuclei v2 are compared with predictions from a blast-wave model. Atomic mass number (A) scaling of light-nuclei v2(pT) seems to hold for pT/Al1.5GeV/c. Results on light-nuclei v2 from a transport-plus-coalescence model are consistent with the experimental measurements.

Published
2016

39. Near-side azimuthal and pseudorapidity correlations using neutral strange baryons and mesons ind+Au, Cu + Cu, and Au + Au collisions atsNN=200GeV

Author

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

Subjects
Physics, Strange quark, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Hadron, Hyperon, Elementary particle, 01 natural sciences, Charged particle, Nuclear physics, Pseudorapidity, 0103 physical sciences, 010306 general physics
Abstract

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

Published
2016

40. J/ψproduction at low transverse momentum inp+pandd+ Au collisions atsNN=200GeV

Author

N. Xu, P. Filip, Zongye Zhang, H. Qiu, M. Tokarev, Yang Yang, I. G. Bordyuzhin, P. Pile, G. D. Westfall, Jaroslav Bielcik, T. D. S. Stanislaus, O. V. Rogachevskiy, H. J. Jang, T. J. Humanic, H. H. Wieman, I. G. Alekseev, S. Trentalange, D. Arkhipkin, A. Hamed, M. A. Lisa, J. C. Mei, Xiaofeng Luo, Guo-Liang Ma, Abdel Nasser Tawfik, C-Q. Li, Maksym Zyzak, S. Fazio, L. C. Bland, J. H. Thomas, R. Varma, B. S. Page, R. Witt, Junjie Zhang, Madan M. Aggarwal, Bedangadas Mohanty, Fuqiang Wang, D. K. Mishra, D. G. Underwood, G. Eppley, R. P. Scharenberg, Christina Markert, K. Poniatowska, S. K. Gupta, D. P. Kikola, B. Stringfellow, Vitaly Okorokov, A. S. Hirsch, P. Kravtsov, A. M. Schmah, D. Smirnov, O. Rusnakova, Bernd Surrow, W. B. Schmidke, S. Mioduszewski, Donald M. McDonald, C. A. Gagliardi, L. P. Zhou, H. Z. Huang, H. S. Matis, J. C. Webb, G. Igo, J. Pluta, Giacomo Contin, Prithwish Tribedy, B. K. Srivastava, Q. Yang, A. Manion, D. Kalinkin, A. Vossen, R. Vertesi, L. K. Kosarzewski, Haiyan Wang, Q. H. Xu, W. Li, Nihar Sahoo, Anik Gupta, C. Zhong, E. C. Aschenauer, J. Engelage, S. Margetis, D. N. Svirida, J. Cheng, D. L. Olvitt, Y. X. Pan, M. Stepanov, Rene Bellwied, Xuedong Bai, P. Chaloupka, F. Liu, J. Xu, Z. J. Xu, G. Nigmatkulov, J. Thäder, W. W. Jacobs, K. D. Landry, X. C. Chen, P. Huck, L. C. De Silva, Frank Jm Geurts, K. Kauder, X. Dong, Mukesh Sharma, G. S. Averichev, J. L. Drachenberg, R. E. Tribble, Olga Evdokimov, J. M. Landgraf, Anthony Robert Timmins, J. Lauret, Gerald W Hoffmann, K. Meehan, J. Porter, M. Strikhanov, Adam Ryszard Kisiel, R. D. Majka, Ivan Kisel, H. J. Crawford, L. Yi, Zhigang Xiao, T. Huang, Michal Sumbera, M. Shao, G. Van Buren, Jay Roberts, E. P. Sichtermann, O. D. Tsai, Jie Zhao, T. Lin, S. Horvat, J. Schambach, Jian Deng, S. S. Shi, S. H. Zhang, Anju Bhasin, A. Sharma, J. Sandweiss, B. Pawlik, N. Yu, Kejun Kang, L. V. Nogach, M. Calderon De La Barca Sanchez, A. I. Hamad, A. V. Brandin, F. Videbæk, B. Huang, G. Agakishiev, D. S. Gunarathne, G. Webb, Sergey Voloshin, N. G. Minaev, R. Lednicky, A. Gibson, R. Esha, M. Simko, Xiangming Sun, Nasim, S. McKinzie, T. Niida, J. K. Adkins, Basanta Kumar Nandi, Xiang Li, Sumit R. Das, S. Heppelmann, G. Van Nieuwenhuizen, Sukalyan Chattopadhyay, L. Kochenda, H. W. Ke, T. Tarnowsky, R. S. Longacre, R. Fatemi, A. Lebedev, S. W. Wissink, Y. Zhang, K. Xin, B. J. Summa, D. Cebra, B. Di Ruzza, Z. Shi, Rashmi Raniwala, S. Kabana, Zebo Tang, A. Sarkar, Arka Chatterjee, L. He, H. G. Ritter, A. M. Poskanzer, Z. Ye, Vipul Bairathi, Leo Clifford Greiner, W. Zha, K. Krueger, K. Jiang, J. E. Draper, Z. J. Sun, Wei Xie, G. Odyniec, Y. Zoulkarneeva, A. Aparin, Z. Chang, Z. Feng, M. A.C. Lamont, S. Y. Noh, X. Huang, Rafal Sikora, A. Kechechyan, T. Ullrich, M. Lomnitz, J. Rusnak, Jana Bielcikova, A. F. Kraishan, Yanjun Wu, Y. Pandit, N. K. Pruthi, C. Perkins, M. K. Mustafa, Z. H. Khan, M. Cherney, J. W. Harris, Pradip Kumar Sahu, J. B. Zhang, P. Seyboth, D. D. Koetke, W. Guryn, N. Schmitz, I. K. Yoo, L. Ruan, J. Novak, B. Sharma, C. Yang, J. Bouchet, J. L. Romero, W. Christie, E. Shahaliev, M. R. Girard, C. E. Flores, M. Posik, Lokesh Kumar, Hua Pei, S. K. Tripathy, Y. Li, S. Singha, C. M. Du, H. S. Xu, J. C. Dunlop, R. Haque, J. Butterworth, Y. Guo, Andrey Vasiliev, H. M. Spinka, S. Ramachandran, O. Eyser, P. Yepes, P. Sorensen, Jongmin Lee, A. H. Tang, J. Fedorisin, I. Sakrejda, T. Todoroki, Y. F. Xu, Leszek Adamczyk, W. Solyst, R. L. Ray, R. Ma, M. M. Mondal, I. Bunzarov, Zubayer Ahammed, P. Federic, E. G. Judd, Janet Elizabeth Seger, J. Putschke, Xiaofeng Zhu, S. B. Nurushev, P. Bhattarai, Isaac Upsal, T. Ljubicic, C. B. Powell, J. M. Campbell, S. Vokal, A. Ogawa, Niseem Magdy, H. Caines, Sudhir Raniwala, Nilay Shah, G. Wang, Q. Y. Shou, M. J. Skoby, R. Pak, T. G. Dedovich, A. Quintero, D. Tlusty, K. Yip, J. S. Wang, R. R. Debbe, M. Vandenbroucke, L. Fulek, L. Didenko, I. Chakaberia, Shangfeng Yang, J. H. Chen, W. J. Llope, Alexander Jentsch, James Brandenburg, A. Attri, D. A. Morozov, Guannan Xie, Xuan Zhang, Hanna Paulina Zbroszczyk, Y. Wang, Y. Fisyak, Y. J. Sun, C. Dilks, Lin Ma, P. V. Shanmuganathan, K. Oh, R. Reed, A. A. Derevschikov, J. Jia, Yinina Ma, L. Wen, L. Song, W. Q. Shen, D. Garand, Sevil Salur, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, L. E. Dunkelberger, L. G. Efimov, T. K. Nayak, Y. Panebratsev, and D. Grosnick

Subjects
Nuclear physics, Physics, 010308 nuclear & particles physics, 0103 physical sciences, Transverse momentum, Chatterjee, Heavy ion, Modification factor, 010306 general physics, 01 natural sciences
Abstract

Author(s): Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Aparin, A; Arkhipkin, D; Aschenauer, EC; Attri, A; Averichev, GS; Bai, X; Bairathi, V; Bellwied, R; Bhasin, A; Bhati, AK; Bhattarai, P; Bielcik, J; Bielcikova, J; Bland, LC; Bordyuzhin, IG; Bouchet, J; Brandenburg, JD; Brandin, AV; Bunzarov, I; Butterworth, J; Caines, H; Calderon De La Barca Sanchez, M; Campbell, JM; Cebra, D; Chakaberia, I; Chaloupka, P; Chang, Z; Chatterjee, A; Chattopadhyay, S; Chen, JH; Chen, X; Cheng, J; Cherney, M; Christie, W; Contin, G; Crawford, HJ; Das, S; De Silva, LC; Debbe, RR; Dedovich, TG; Deng, J; Derevschikov, AA; Di Ruzza, B; Didenko, L; Dilks, C; Dong, X; Drachenberg, JL; Draper, JE; Du, CM; Dunkelberger, LE; Dunlop, JC; Efimov, LG; Engelage, J; Eppley, G; Esha, R; Evdokimov, O; Eyser, O; Fatemi, R; Fazio, S; Federic, P; Fedorisin, J; Feng, Z; Filip, P; Fisyak, Y; Flores, CE; Fulek, L; Gagliardi, CA; Garand, D; Geurts, F; Gibson, A; Girard, M; Greiner, L; Grosnick, D; Gunarathne, DS; Guo, Y; Gupta, S; Gupta, A; Guryn, W; Hamad, AI | Abstract: We report on the measurement of J/ψ production in the dielectron channel at midrapidity (|y|l1) in p+p and d+Au collisions at sNN=200GeV from the STAR experiment at the Relativistic Heavy Ion Collider. The transverse momentum pT spectra in p+p for pTl4GeV/c and d+Au collisions for pTl3GeV/c are presented. These measurements extend the STAR coverage for J/ψ production in p+p collisions to low pT. The (pT2) from the measured J/ψ invariant cross section in p+p and d+Au collisions are evaluated and compared to similar measurements at other collision energies. The nuclear modification factor for J/ψ is extracted as a function of pT and collision centrality in d+Au and compared to model calculations using the modified nuclear parton distribution function and a final-state J/ψ nuclear absorption cross section.

Published
2016

41. Measurement of the Transverse Single-Spin Asymmetry inp↑+p→W±/Z0at RHIC

Author

R. P. Scharenberg, Christina Markert, E. P. Sichtermann, D. Smirnov, O. Rusnakova, L. K. Kosarzewski, Y. X. Pan, Nasim, W. W. Jacobs, K. D. Landry, Y. Fisyak, J. Lauret, Rashmi Raniwala, Lin Ma, K. Oh, Z. Chang, A. K. Bhati, Xiangming Sun, D. Keane, R. Lednicky, L. Kochenda, T. Tarnowsky, R. S. Longacre, Nikolai Smirnov, R. Stock, L. E. Dunkelberger, L. G. Efimov, Mukesh Sharma, T. Ullrich, Zebo Tang, M. Posik, T. K. Nayak, K. Poniatowska, Junjie Zhang, D. Cebra, H. M. Spinka, C. M. Du, Maksym Zyzak, H. S. Xu, J. Novak, P. Seyboth, A. Banerjee, Leo Clifford Greiner, S. K. Gupta, Giacomo Contin, Leszek Adamczyk, Z. J. Sun, N. K. Pruthi, P. Federic, Z. H. Khan, Bedangadas Mohanty, B. Sharma, D. Tlusty, J. Bouchet, M. K. Mustafa, J. C. Webb, Y. Li, S. Singha, G. Igo, C. Perkins, J. Butterworth, Nihar Sahoo, I. G. Alekseev, G. Eppley, X. C. Chen, P. Huck, J. Porter, W. J. Llope, M. A. Lisa, J. C. Mei, B. Pawlik, Ivan Kisel, Y. F. Xu, Xiaofeng Zhu, J. Pluta, C. Zhong, E. C. Aschenauer, S. Margetis, A. Roy, Anthony Robert Timmins, Adam Ryszard Kisiel, W. Li, Xiaofeng Luo, Y. Panebratsev, D. Grosnick, Alexander Jentsch, X. Dong, A. Ogawa, P. Bhattarai, A. Gibson, G. Wang, J. Engelage, Rene Bellwied, H. J. Crawford, S. Heppelmann, G. Nigmatkulov, A. Attri, R. Esha, Guo-Liang Ma, Basanta Kumar Nandi, Zongye Zhang, J. Rusnak, A. Sarkar, J. Jia, A. F. Kraishan, Q. H. Xu, L. Ruan, J. Xu, Anik Gupta, I. G. Bordyuzhin, M. J. Skoby, B. J. Summa, R. E. Tribble, Jana Bielcikova, Isaac Upsal, L. Fulek, J. K. Adkins, J. M. Landgraf, R. Fatemi, Gerald W Hoffmann, Robert Vertesi, L. He, K. Kauder, Xuan Zhang, Yinina Ma, K. Krueger, Y. Guo, L. C. Bland, Jongmin Lee, J. H. Thomas, G. Odyniec, R. L. Ray, R. Ma, Madan M. Aggarwal, A. S. Hirsch, P. Kravtsov, Y. Zoulkarneeva, A. M. Schmah, Fuqiang Wang, Frank Jm Geurts, K. Yip, J. S. Wang, F. Liu, M. Strikhanov, P. Sorensen, Jie Zhao, T. Lin, S. Horvat, T. Todoroki, Xuedong Bai, L. P. Zhou, Michal Sumbera, R. R. Debbe, Sergey Voloshin, D. K. Mishra, J. B. Zhang, T. Ljubicic, M. Shao, G. Van Buren, L. Wen, L. Song, W. Q. Shen, H. Z. Huang, L. Didenko, I. Chakaberia, Jinhui Chen, S. S. Shi, D. N. Svirida, M. Vandenbroucke, B. Huang, J. Sandweiss, S. H. Zhang, Hanna Paulina Zbroszczyk, R. D. Majka, A. I. Hamad, M. Stepanov, G. S. Averichev, Zhigang Xiao, T. Huang, M. Simko, D. Garand, L. Yi, M. Cherney, Lokesh Kumar, Hua Pei, N. G. Minaev, A. Manion, D. Kalinkin, Y. J. Sun, C. Dilks, D. D. Koetke, James Brandenburg, F. Videbæk, Niseem Magdy, H. Caines, Sudhir Raniwala, A. Quintero, J. M. Campbell, G. Webb, W. Zha, Sevil Salur, Y. Wang, S. Ramachandran, O. Eyser, M. M. Mondal, Xin-Yuan Huang, S. K. Tripathy, K. Jiang, Yanjun Wu, Sukalyan Chattopadhyay, N. Xu, P. Filip, W. Solyst, J. Schambach, S. W. Wissink, Y. Zhang, J. L. Romero, H. G. Ritter, A. Vossen, P. V. Shanmuganathan, W. Guryn, W. Christie, P. Pile, G. D. Westfall, S. Fazio, Rafal Sikora, Jun Deng, M. A.C. Lamont, J. Fedorisin, S. Vokal, S. Y. Noh, M. R. Girard, Andrey Vasiliev, Z. Feng, M. Lomnitz, J. W. Harris, J. E. Draper, M. Calderon De La Barca Sanchez, T. G. Dedovich, C. E. Flores, Haiyan Wang, G. Agakishiev, D. S. Gunarathne, P. Chaloupka, J. Thäder, D. L. Olvitt, D. G. Underwood, X. Xie, Z. J. Xu, P. Yepes, X.G. Li, A. H. Tang, Janet Elizabeth Seger, Q. Yang, Jaroslav Bielcik, T. J. Humanic, A. A. Derevschikov, I. Bunzarov, C. Yang, David Jonathan Hofman, S. Kabana, Anju Bhasin, J. Cheng, Abdel Nasser Tawfik, L. C. De Silva, Shangfeng Yang, T. Niida, R. Varma, S. B. Nurushev, B. S. Page, D. P. Kikola, I. K. Yoo, A. Lebedev, B. Stringfellow, Z. Shi, O. V. Rogachevskiy, S. Trentalange, D. Arkhipkin, H. J. Jang, A. Hamed, I. Sakrejda, R. Haque, D. A. Morozov, E. G. Judd, Vitaly Okorokov, Bernd Surrow, W. B. Schmidke, C. A. Gagliardi, N. Yu, Kejun Kang, L. V. Nogach, Nilay Shah, Sumit R. Das, K. Meehan, Jorn Henning Putschke, A. V. Brandin, G. Van Nieuwenhuizen, K. Xin, Vipul Bairathi, A. M. Poskanzer, Z. Ye, A. Kechechyan, Pradip Kumar Sahu, H. Qiu, M. Tokarev, Yang Yang, T. D. S. Stanislaus, H. H. Wieman, J. C. Dunlop, Zubayer Ahammed, Q. Y. Shou, R. Pak, R. Witt, S. Mioduszewski, Donald M. McDonald, Prithwish Tribedy, B. K. Srivastava, J. L. Drachenberg, Olga Evdokimov, Jay Roberts, H. W. Ke, B. Di Ruzza, Wei Xie, A. Aparin, Y. Pandit, N. Schmitz, E. Shahaliev, O. D. Tsai, and C-Q. Li

Subjects
Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, media_common.quotation_subject, General Physics and Astronomy, Perturbative QCD, Parton, Deep inelastic scattering, 01 natural sciences, Asymmetry, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, media_common, Boson
Abstract

We present the measurement of the transverse single-spin asymmetry of weak boson production in transversely polarized proton-proton collisions at sqrt[s]=500 GeV by the STAR experiment at RHIC. The measured observable is sensitive to the Sivers function, one of the transverse-momentum-dependent parton distribution functions, which is predicted to have the opposite sign in proton-proton collisions from that observed in deep inelastic lepton-proton scattering. These data provide the first experimental investigation of the nonuniversality of the Sivers function, fundamental to our understanding of QCD.

Published
2016

42. Centrality and Transverse Momentum Dependence of Elliptic Flow of Multistrange Hadrons andϕMeson inAu+AuCollisions atsNN=200 GeV

Author

Zongye Zhang, J. K. Adkins, Jorn Henning Putschke, I. G. Bordyuzhin, Mirko Planinic, R. Fatemi, L. He, K. Krueger, Xuan Zhang, D. G. Underwood, H. Qiu, M. Tokarev, Yang Yang, A. V. Brandin, K. Xin, Q. Yang, Zhiming Li, H. Z. Huang, S. Vokal, I. Kisel, R. S. Longacre, Xiangming Sun, Hanna Paulina Zbroszczyk, C-Q. Li, Vipul Bairathi, R. P. Scharenberg, Christina Markert, D. Smirnov, O. Rusnakova, Jaroslav Bielcik, H. S. Matis, L. K. Kosarzewski, J. Cheng, Xiaofeng Zhu, W. W. Jacobs, Xiaofeng Luo, A. Ogawa, J. Lauret, Radoslaw Antoni Kycia, T. D. S. Stanislaus, Y. Fisyak, R. Lednicky, L. Kochenda, T. Tarnowsky, L. C. De Silva, I. K. Yoo, M. Cherney, Lin Ma, Lokesh Kumar, Hua Pei, R. Witt, J. C. Webb, H. H. Wieman, K. Oh, E. C. Aschenauer, I. G. Alekseev, M. A. Lisa, Shangfeng Yang, J. H. Chen, Guo-Liang Ma, S. K. Tripathy, O. V. Rogachevskiy, H. J. Jang, R. Haque, S. Mioduszewski, Z. Chang, S. Margetis, G. Igo, J. Novak, J. W. Harris, X. Dong, D. A. Morozov, I. Sakrejda, Mukesh Sharma, K. Poniatowska, M. Zyzak, Donald M. McDonald, B. Sharma, J. Bouchet, Zebo Tang, G. Wang, W. Guryn, C. E. Flores, E. G. Judd, N. Yu, K. D. Landry, S. K. Gupta, Giacomo Contin, Kejun Kang, L. V. Nogach, Prithwish Tribedy, B. K. Srivastava, A. S. Hirsch, J. Engelage, J. Butterworth, Leo Clifford Greiner, A. M. Poskanzer, Z. Ye, G. Nigmatkulov, J. Fedorisin, Y. Guo, D. Kalinkin, Robert Vertesi, Anju Bhasin, M. Posik, B. J. Summa, Jongmin Lee, R. L. Ray, G. Eppley, Madan M. Aggarwal, Nihar Sahoo, X. C. Chen, Fuqiang Wang, P. Huck, M. R. Girard, M. A.C. Lamont, Z. J. Sun, P. Sorensen, Sumit R. Das, G. Van Nieuwenhuizen, X. Huang, A. Kechechyan, H. M. Spinka, R. Ma, P. Kravtsov, A. M. Schmah, J. M. Landgraf, Roli Esha, D. K. Mishra, X. Li, Jie Zhao, S. Horvat, T. Ljubicic, Anthony Robert Timmins, Adam Ryszard Kisiel, P. Yepes, J. Pluta, S. Y. Noh, J. C. Dunlop, L. Wen, Nilay Shah, A. H. Tang, Pradip Kumar Sahu, S. Fazio, A. Banerjee, J. Porter, M. Strikhanov, C. Perkins, A. Lebedev, A. Manion, H. Caines, Sudhir Raniwala, J. B. Zhang, D. D. Koetke, J. E. Draper, G. Agakishiev, D. S. Gunarathne, Michal Sumbera, S. Ramachandran, O. Eyser, A. Quintero, W. Li, H. J. Crawford, L. Didenko, I. Chakaberia, S. Heppelmann, Zubayer Ahammed, P. Seyboth, P. Bhattarai, Isaac Upsal, Sergey Voloshin, K. Yip, M. K. Mustafa, J. S. Wang, J. Sandweiss, A. Vossen, W. Zha, Nasim, M. M. Mondal, D. Cebra, Q. H. Xu, I. Bunzarov, Rene Bellwied, R. R. Debbe, Zhigang Xiao, Leszek Adamczyk, K. Jiang, Q. Y. Shou, M. Vandenbroucke, S. W. Wissink, R. Stock, Y. Li, S. Singha, Anik Gupta, E. P. Sichtermann, Y. Zhang, Yanjun Wu, D. Tlusty, R. E. Tribble, F. Videbæk, P. V. Shanmuganathan, M. A. Szelezniak, M. Calderon De La Barca Sanchez, Gerald W Hoffmann, A. I. Hamad, N. G. Minaev, G. Webb, A. Sarkar, Nikola Poljak, R. Pak, J. L. Drachenberg, S. Kabana, Sukalyan Chattopadhyay, P. Federic, Vitaly Okorokov, Frank Jm Geurts, G. Odyniec, Rashmi Raniwala, Y. Zoulkarneeva, C. Zhong, Bernd Surrow, W. J. Llope, L. E. Dunkelberger, Olga Evdokimov, Barbara Antonina Trzeciak, A. Roy, J. H. Thomas, N. Magdy, T. Ullrich, A. Peterson, Z. H. Khan, Haiyan Wang, Junjie Zhang, Y. J. Sun, C. Dilks, Bedangadas Mohanty, A. A. Derevschikov, J. Rusnak, Jay Roberts, L. P. Zhou, W. Christie, A. F. Kraishan, C. M. Du, K. Meehan, W. B. Schmidke, H. S. Xu, C. A. Gagliardi, B. Huang, L. Ruan, J. M. Campbell, Z. Feng, M. Lomnitz, Y. P. Viyogi, H. W. Ke, D. L. Olvitt, T. J. Humanic, T. G. Dedovich, B. Di Ruzza, Andrey Vasiliev, M. Stepanov, G. S. Averichev, N. Xu, P. Filip, Abdel Nasser Tawfik, M. Shao, Y. X. Pan, G. Van Buren, P. Pile, G. D. Westfall, K. Kauder, Jun Deng, R. Varma, S. S. Shi, B. S. Page, D. P. Kikola, B. Stringfellow, Y. G. Ma, Janet Elizabeth Seger, C. Yang, David Jonathan Hofman, H. Masui, T. Kollegger, S. B. Nurushev, F. Liu, Miroslav Simko, R. D. Majka, J. Schambach, Wei Xie, A. Aparin, Y. Pandit, N. Schmitz, D. Arkhipkin, A. Hamed, E. Shahaliev, Jana Bielcikova, J. L. Romero, B. Pawlik, A. Gibson, Y. F. Wu, Basanta Kumar Nandi, S. Zhang, P. Chaloupka, Z. J. Xu, S. Trentalange, O. D. Tsai, M. C. Cervantes, L. Yi, L. Song, W. Q. Shen, Xiang Sun, N. Svirida, I. Kulakov, D. Garand, H. G. Ritter, Rafal Sikora, Sevil Salur, Y. Wang, L. C. Bland, Y. F. Xu, A. K. Bhati, D. Keane, Nikolai Smirnov, L. G. Efimov, T. K. Nayak, Y. Panebratsev, M. J. Skoby, D. Grosnick, and L. Fulek

Subjects
Physics, Quark, Strange quark, Particle physics, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear Theory, Elliptic flow, General Physics and Astronomy, Constituent quark, 01 natural sciences, Nuclear physics, Strange matter, 0103 physical sciences, High Energy Physics::Experiment, Invariant mass, Vector meson, Nuclear Experiment, 010306 general physics
Abstract

We present high precision measurements of elliptic flow near midrapidity (|y

Published
2016

43. Centrality dependence of identified particle elliptic flow in relativistic heavy ion collisions atsNN=7.7–62.4GeV

Author

A. Manion, A. Vossen, Bernd Surrow, W. B. Schmidke, C. A. Gagliardi, Jaroslav Bielcik, O. V. Rogachevskiy, H. J. Jang, R. S. Longacre, Junjie Zhang, Bedangadas Mohanty, Zebo Tang, Leo Clifford Greiner, P. V. Shanmuganathan, J. Novak, B. Sharma, J. Bouchet, J. Engelage, C. Perkins, G. Nigmatkulov, J. Butterworth, Sergey Voloshin, Mukesh Sharma, I. K. Yoo, J. M. Landgraf, A. A. Derevschikov, Zhiqing Zhang, Anik Gupta, R. Haque, M. Strikhanov, Zhiming Li, K. Jiang, Q. H. Xu, A. M. Poskanzer, Maksym Zyzak, Yanjun Wu, Z. J. Sun, Frank Jm Geurts, E. G. Judd, Z. Ye, N. Yu, Kejun Kang, L. V. Nogach, E. P. Sichtermann, P. Chaloupka, J. C. Webb, G. Igo, J. Sandweiss, Nasim, K. Poniatowska, X. Huang, A. Kechechyan, Z. J. Xu, Sumit R. Das, S. K. Gupta, P. Seyboth, Giacomo Contin, Michal Sumbera, A. Peterson, Pradip Kumar Sahu, G. Van Nieuwenhuizen, Leszek Adamczyk, Rashmi Raniwala, Nihar Sahoo, D. Tlusty, I. G. Bordyuzhin, Mirko Planinic, X. C. Chen, P. Federic, D. Brandenburg, O. Chisman, P. Huck, B. Pawlik, I. Kulakov, B. Huang, X. Li, Z. H. Khan, S. W. Wissink, Y. Zhang, A. Gibson, N. Xu, Jana Bielcikova, H. Qiu, T. Ullrich, R. Esha, P. Filip, M. K. Mustafa, Xiaofeng Luo, Anthony Robert Timmins, M. Tokarev, Adam Ryszard Kisiel, Robert Vertesi, Anju Bhasin, Basanta Kumar Nandi, J. C. Dunlop, Nikola Poljak, C-Q. Li, R. P. Scharenberg, Christina Markert, P. Pile, D. Smirnov, O. Rusnakova, G. D. Westfall, S. Zhang, P. Sorensen, C. M. Du, Y. Li, S. Singha, Guo-Liang Ma, H. J. Crawford, J. K. Adkins, T. Niida, H. S. Xu, H. S. Matis, J. E. Draper, L. K. Kosarzewski, Y. X. Pan, W. W. Jacobs, K. D. Landry, A. Lebedev, V. A. Okorokov, R. Fatemi, L. He, Zubayer Ahammed, Y. Fisyak, Y. Guo, J. M. Campbell, K. Krueger, T. D. S. Stanislaus, J. Lauret, Jongmin Lee, R. L. Ray, R. Ma, L. Didenko, I. Chakaberia, Lin Ma, K. Oh, H. H. Wieman, R. Lednicky, L. Kochenda, T. Tarnowsky, A. S. Hirsch, S. Trentalange, D. Arkhipkin, T. Ljubicic, T. G. Dedovich, A. Hamed, P. Kravtsov, A. M. Schmah, F. Liu, A. Roy, Niseem Magdy, H. Caines, Sudhir Raniwala, H. Z. Huang, M. Cherney, A. Quintero, J. Rusnak, Lokesh Kumar, A. F. Kraishan, Xiaofeng Zhu, G. Odyniec, R. D. Majka, Hua Pei, S. K. Tripathy, Y. Zoulkarneeva, C. Zhong, A. Ogawa, J. Schambach, F. Videbæk, A. I. Hamad, W. Christie, L. Ruan, G. Wang, G. Webb, Q. Y. Shou, Sukalyan Chattopadhyay, E. C. Aschenauer, Andrey Vasiliev, S. Margetis, K. Yip, J. S. Wang, X. Dong, M. A.C. Lamont, Z. Feng, M. Lomnitz, Janet Elizabeth Seger, R. R. Debbe, M. Vandenbroucke, S. Y. Noh, L. C. Bland, Jian Deng, D. L. Olvitt, G. Agakishiev, D. S. Gunarathne, R. Pak, Y. F. Xu, S. Kabana, Radoslaw Antoni Kycia, Xiangming Sun, J. W. Harris, S. Heppelmann, I. G. Alekseev, J. L. Drachenberg, M. A. Lisa, Olga Evdokimov, Barbara Antonina Trzeciak, A. K. Bhati, D. Keane, Zhigang Xiao, Nikolai Smirnov, R. Stock, X. Bai, K. Meehan, Jorn Henning Putschke, L. E. Dunkelberger, L. G. Efimov, P. Yepes, N. G. Minaev, A. V. Brandin, K. Xin, A. H. Tang, Z. Chang, N. K. Pruthi, Yu-Gang Ma, T. K. Nayak, G. Eppley, Vipul Bairathi, I. Bunzarov, J. Pluta, Xuan Zhang, W. Li, M. J. Skoby, Rene Bellwied, Jay Roberts, M. Posik, Y. Panebratsev, D. Grosnick, R. E. Tribble, L. Fulek, Gerald W Hoffmann, K. Kauder, H. M. Spinka, L. Yi, Hanna Paulina Zbroszczyk, N. Svirida, A. Banerjee, J. Porter, Y. Yang, H. W. Ke, H. G. Ritter, B. Di Ruzza, Ivan Kisel, W. Guryn, Rafal Sikora, Nilay Shah, J. Fedorisin, M. Calderon De La Barca Sanchez, A. Sarkar, Jie Zhao, S. Horvat, J. L. Romero, J. H. Thomas, M. Simko, W. J. Llope, M. C. Cervantes, L. Wen, W. Zha, L. Song, W. Q. Shen, L. P. Zhou, D. Cebra, Xiang Sun, R. Witt, D. G. Underwood, Q. Yang, D. Garand, S. Mioduszewski, M. Stepanov, G. S. Averichev, Sevil Salur, Y. Wang, J. Cheng, L. C. De Silva, Donald M. McDonald, Prithwish Tribedy, B. K. Srivastava, T. J. Humanic, Abdel Nasser Tawfik, R. Varma, B. S. Page, D. P. Kikola, B. Stringfellow, M. R. Girard, C. E. Flores, P. Bhattarai, Isaac Upsal, M. A. Szelezniak, Y. J. Sun, C. Dilks, Y. P. Viyogi, Thorsten Sven Kollegger, D. Kalinkin, B. J. Summa, J. B. Zhang, D. D. Koetke, S. Ramachandran, O. Eyser, M. M. Mondal, S. Vokal, Wei Xie, A. Aparin, Shangfeng Yang, J. H. Chen, Y. Pandit, D. A. Morozov, N. Schmitz, E. Shahaliev, Y. F. Wu, O. D. Tsai, S. Fazio, Haiyan Wang, J. Thäder, M. Shao, G. Van Buren, S. S. Shi, C. Yang, David Jonathan Hofman, H. Masui, S. B. Nurushev, Madan M. Aggarwal, Fuqiang Wang, and D. K. Mishra

Subjects
Quark, Physics, Antiparticle, Particle physics, 010308 nuclear & particles physics, Elliptic flow, 01 natural sciences, Nuclear physics, Flow (mathematics), 0103 physical sciences, Physics::Accelerator Physics, Particle, Impact parameter, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Scaling
Abstract

Elliptic flow (v2) values for identified particles at midrapidity in Au + Au collisions measured by the STAR experiment in the Beam Energy Scan at the

Published
2016

44. Centrality and Transverse Momentum Dependence of Elliptic Flow of Multistrange Hadrons and φ Meson in Au+Au Collisions at sNN =200 GeV

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, 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, 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, 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, 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, X, Huang, B, Huang, H Z, 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, Kikoła, I, Kisel, A, Kisiel, L, Kochenda, D D, Koetke, T, Kollegger, L K, Kosarzewski, 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, Z M, Li, W, Li, X, Li, C, Li, Y, Li, M A, Lisa, F, Liu, T, Ljubicic, W J, Llope, M, Lomnitz, R S, Longacre, X, Luo, Y G, Ma, G L, Ma, L, Ma, R, 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, D, Mishra, 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, Olvitt, B S, Page, R, Pak, Y X, Pan, Y, Pandit, Y, Panebratsev, 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, 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, D, Smirnov, N, Smirnov, 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, X, Sun, X M, Sun, Y, Sun, Z, Sun, B, Surrow, N, Svirida, M A, Szelezniak, A H, Tang, Z, Tang, T, Tarnowsky, A, 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, Videbæk, Y P, Viyogi, S, Vokal, S A, Voloshin, A, Vossen, Y, Wang, G, Wang, J S, Wang, H, Wang, F, Wang, J C, Webb, G, Webb, L, Wen, G D, Westfall, H, Wieman, S W, Wissink, R, Witt, Y F, Wu, Y, Wu, Z G, Xiao, W, Xie, K, Xin, N, Xu, Z, Xu, Q H, Xu, Y F, Xu, H, Xu, Q, Yang, Y, Yang, S, Yang, C, Yang, Z, Ye, P, Yepes, L, Yi, K, Yip, I-K, Yoo, N, Yu, H, Zbroszczyk, W, Zha, Z, Zhang, Y, Zhang, J B, Zhang, J, Zhang, S, Zhang, X P, Zhang, J, Zhao, C, Zhong, L, Zhou, X, Zhu, Y, Zoulkarneeva, M, Zyzak, Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., Aparin, A., Arkhipkin, D., Aschenauer, E. C., Averichev, G. S., 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., Brandin, A. V., Bunzarov, I., Butterworth, J., Caines, H., De La Barca Sánchez, M. C., Campbell, J. M., Cebra, D., Cervantes, M. C., Chakaberia, I., Chaloupka, P., Chang, Z., 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., 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, X., Huang, B., Huang, H. Z., Huck, P., Humanic, T. J., Igo, G., Jacobs, W. W., Jang, H., 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., Kisel, I., Kisiel, A., Kochenda, L., Koetke, D. D., Kollegger, T., Kosarzewski, L. K., Kraishan, A. F., Kravtsov, P., Krueger, K., Kulakov, I., Kumar, L., Kycia, R. A., Lamont, M. A. C., Landgraf, J. M., Landry, K. D., Lauret, J., Lebedev, A., Lednicky, R., Lee, J. H., Li, Z. M., Li, W., Li, X., Li, C., Li, Y., Lisa, M. A., Liu, F., Ljubicic, T., Llope, W. J., Lomnitz, M., Longacre, R. S., Luo, X., Ma, Y. G., Ma, G. L., Ma, L., Ma, R., Magdy, N., Majka, R., Manion, A., Margetis, S., Markert, C., Masui, H., Matis, H. S., Mcdonald, D., Meehan, K., 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., 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., Planinic, M., Pluta, J., Poljak, N., Poniatowska, K., Porter, J., Posik, M., Poskanzer, A. M., 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, D., Smirnov, N., Song, L., Sorensen, P., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stepanov, M., Stock, R., Strikhanov, M., Stringfellow, B., Sumbera, M., Summa, B., Sun, X., Sun, X. M., Sun, Y., Sun, Z., Surrow, B., Svirida, N., Szelezniak, M. A., Tang, A. H., Tang, Z., Tarnowsky, T., Tawfik, A., Thomas, J. H., Timmins, A. R., Tlusty, D., 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., Vandenbroucke, M., Varma, R., Vasiliev, A. N., Vertesi, R., Videbæk, F., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vossen, A., Wang, Y., Wang, G., Wang, J. S., Wang, H., Wang, F., Webb, J. C., Webb, G., Wen, L., Westfall, G. D., Wieman, H., Wissink, S. W., Witt, R., Wu, Y. F., Wu, Y., Xiao, Z. G., Xie, W., Xin, K., Xu, N., Xu, Z., Xu, Q. H., Xu, Y. F., Xu, H., Yang, Q., Yang, Y., Yang, S., Yang, C., Ye, Z., Yepes, P., Yi, L., Yip, K., Yoo, I. -K., Yu, N., Zbroszczyk, H., Zha, W., Zhang, Z., Zhang, Y., Zhang, J. B., Zhang, J., Zhang, S., Zhang, X. P., Zhao, J., Zhong, C., Zhou, L., Zhu, X., Zoulkarneeva, Y., and Zyzak, M.

Subjects
RHIC, flow, strangeness, STAR, quark gluon plasma, heavy ions, strangene
Abstract

We present high precision measurements of elliptic flow near midrapidity (|y|1.0) for multistrange hadrons and ϕ meson as a function of centrality and transverse momentum in Au+Au collisions at center of mass energy √[sNN]=200 GeV. We observe that the transverse momentum dependence of ϕ and Ω v2 is similar to that of π and p, respectively, which may indicate that the heavier strange quark flows as strongly as the lighter up and down quarks. This observation constitutes a clear piece of evidence for the development of partonic collectivity in heavy-ion collisions at the top RHIC energy. Number of constituent quark scaling is found to hold within statistical uncertainty for both 0%-30% and 30%-80% collision centrality. There is an indication of the breakdown of previously observed mass ordering between ϕ and proton v2 at low transverse momentum in the 0%-30% centrality range, possibly indicating late hadronic interactions affecting the proton v2.

Published
2016

45. Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs inp↑+pats=200 GeV

Author

Nasim, Mukesh Sharma, G. Wang, Zebo Tang, J. W. Harris, E. P. Sichtermann, Leo Clifford Greiner, Rashmi Raniwala, Z. J. Sun, C. Perkins, G. Eppley, Jaroslav Bielcik, J. Pluta, P. V. Shanmuganathan, W. Li, Z. Chang, T. Ullrich, Rene Bellwied, Thorsten Sven Kollegger, D. Kalinkin, L. E. Dunkelberger, P. Yepes, A. H. Tang, R. E. Tribble, Gerald W Hoffmann, F. Videbæk, C. M. Du, H. S. Xu, Xiaofeng Zhu, W. Christie, Xiangming Sun, N. Magdy, N. K. Pruthi, M. Posik, S. Heppelmann, B. J. Summa, G. Webb, A. A. Derevschikov, O. V. Rogachevskiy, H. J. Jang, I. Bunzarov, Andrey Vasiliev, Z. H. Khan, Junjie Zhang, Bedangadas Mohanty, A. Roy, Sukalyan Chattopadhyay, Y. Wang, Y. Fisyak, Lin Ma, H. M. Spinka, A. Banerjee, Y. Guo, Anik Gupta, M. K. Mustafa, K. Oh, A. Ogawa, J. Rusnak, Jongmin Lee, R. L. Ray, J. B. Zhang, D. D. Koetke, Y. Li, Xuan Zhang, H. Qiu, M. Tokarev, Zhiming Li, Frank Jm Geurts, J. E. Draper, S. Ramachandran, Janet Elizabeth Seger, A. F. Kraishan, L. Ruan, Radoslaw Antoni Kycia, J. H. Thomas, T. Ljubicic, Z. Feng, M. Lomnitz, Anju Bhasin, Maksym Zyzak, H. Caines, Sudhir Raniwala, O. Eyser, M. M. Mondal, P. Seyboth, L. P. Zhou, I. G. Alekseev, Madan M. Aggarwal, Fuqiang Wang, Hanna Paulina Zbroszczyk, Zongye Zhang, A. Lebedev, D. Tlusty, I. G. Bordyuzhin, Mirko Planinic, K. Poniatowska, M. A. Lisa, K. Meehan, Jorn Henning Putschke, J. C. Webb, A. V. Brandin, J. Engelage, A. Quintero, J. Alford, Leszek Adamczyk, G. Nigmatkulov, Xiaofeng Luo, Guo-Liang Ma, X. Li, T. D. S. Stanislaus, A. Manion, P. Federic, S. K. Gupta, M. Stepanov, G. S. Averichev, Giacomo Contin, R. Witt, K. Kauder, H. Z. Huang, Michal Sumbera, W. Guryn, S. Vokal, I. Kulakov, J. Porter, K. Xin, A. Vossen, H. H. Wieman, J. M. Landgraf, Ivan Kisel, R. Vertesi, A. S. Hirsch, P. Kravtsov, A. M. Schmah, Nihar Sahoo, E. C. Aschenauer, S. Mioduszewski, M. Strikhanov, F. Liu, C-Q. Li, X. C. Chen, J. M. Campbell, J. L. Romero, Jian Deng, P. Huck, Shangfeng Yang, J. H. Chen, G. Agakishiev, D. S. Gunarathne, R. P. Scharenberg, Christina Markert, R. Ma, Vitaly Okorokov, S. W. Wissink, S. Margetis, Y. Zhang, D. Smirnov, O. Rusnakova, H. S. Matis, X. Dong, D. L. Olvitt, Bernd Surrow, J. Sandweiss, W. J. Llope, Donald M. McDonald, D. Cebra, L. K. Kosarzewski, J. Fedorisin, Prithwish Tribedy, B. K. Srivastava, Nikola Poljak, B. Pawlik, A. M. Poskanzer, Z. Ye, W. W. Jacobs, M. Shao, Y. X. Pan, G. Van Buren, Anthony Robert Timmins, Adam Ryszard Kisiel, K. Yip, J. S. Wang, R. D. Majka, J. Schambach, R. R. Debbe, M. Calderon De La Barca Sanchez, A. I. Hamad, T. G. Dedovich, D. A. Morozov, S. Kabana, J. Lauret, W. B. Schmidke, X. Huang, H. J. Crawford, M. Vandenbroucke, C. A. Gagliardi, J. K. Adkins, Roli Esha, R. Lednicky, L. Kochenda, T. Tarnowsky, Jana Bielcikova, Zhigang Xiao, P. Sorensen, A. Kechechyan, D. Arkhipkin, A. Hamed, R. Fatemi, Pradip Kumar Sahu, L. He, S. S. Shi, Jie Zhao, S. Horvat, K. Krueger, N. G. Minaev, J. L. Drachenberg, Olga Evdokimov, Barbara Antonina Trzeciak, I. Sakrejda, M. A.C. Lamont, S. Y. Noh, M. Simko, N. Yu, Kejun Kang, L. V. Nogach, I. K. Yoo, L. Yi, W. Zha, Sumit R. Das, G. Van Nieuwenhuizen, Kun Jiang, Jay Roberts, M. Cherney, Nilay Shah, A. Sarkar, Lokesh Kumar, L. Didenko, I. Chakaberia, Hua Pei, S. K. Tripathy, D. G. Underwood, R. Haque, Q. Yang, H. W. Ke, J. Cheng, N. Xu, B. Di Ruzza, Yang Yang, L. C. De Silva, J. C. Dunlop, L. Wen, Zubayer Ahammed, C. E. Flores, E. G. Judd, Q. Y. Shou, R. Pak, M. R. Girard, P. Filip, Sergey Voloshin, P. Pile, G. D. Westfall, Wei Xie, A. Aparin, Y. G. Ma, Y. Pandit, N. Schmitz, E. Shahaliev, C. Yang, David Jonathan Hofman, Y. F. Wu, H. Masui, T. J. Humanic, A. Gibson, S. B. Nurushev, S. Fazio, Basanta Kumar Nandi, Abdel Nasser Tawfik, S. Zhang, Haiyan Wang, R. Varma, B. S. Page, D. P. Kikola, T. P. Burton, B. Stringfellow, P. Bhattarai, Isaac Upsal, P. Chaloupka, M. A. Szelezniak, Z. J. Xu, S. Trentalange, N. Svirida, H. G. Ritter, Rafal Sikora, Y. J. Sun, C. Dilks, L. C. Bland, Y. F. Xu, Y. P. Viyogi, M. J. Skoby, Y. Panebratsev, D. Grosnick, L. Fulek, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, L. G. Efimov, T. K. Nayak, O. D. Tsai, M. C. Cervantes, L. Song, W. Q. Shen, Xiang Sun, D. Garand, Sevil Salur, Q. H. Xu, A. Peterson, B. Huang, R. S. Longacre, G. Igo, J. Novak, B. Sharma, J. Bouchet, K. D. Landry, J. Butterworth, G. Odyniec, Y. Zoulkarneeva, and C. Zhong

Subjects
Physics, Quark, Quantum chromodynamics, Particle physics, Meson, Nuclear Theory, Hadron, General Physics and Astronomy, Nuclear physics, Pion, Pair production, High Energy Physics::Experiment, Invariant mass, Nuclear Experiment, Nucleon
Abstract

We report the observation of transverse polarization-dependent azimuthal correlations in charged pion pair production with the STAR experiment in p↑+p collisions at RHIC. These correlations directly probe quark transversity distributions. We measure signals in excess of 5 standard deviations at high transverse momenta, at high pseudorapidities η>0.5, and for pair masses around the mass of the ρ meson. This is the first direct transversity measurement in p+p collisions.

Published
2015

46. Performance of a new LMRPC prototype for the STAR MTD system

Author

X. L. Wang, Z. Xu, G. Eppley, S. Mioduszewski, Frank Jm Geurts, Yichun Xu, Donald M. McDonald, Prithwish Tribedy, S. K. Pal, L. Bridges, Kejun Kang, Sanjib Muhuri, J.C. Li, J. C. Dunlop, Jay Roberts, Zubayer Ahammed, Bedangadas Mohanty, Zhenyu Zhang, C-Q. Li, Hongfang Liu, Gerald W Hoffmann, Christina Markert, P.P. Bhaduri, J. Cheng, K. Asselta, M. Wada, Zebo Tang, T. Ullrich, J. Engelage, J.A. Scheblein, B. Huang, H. J. Crawford, H. Zeng, L. Li, Premomoy Ghosh, Weicheng Ding, Jingbo Wang, Y. J. Sun, J. M. Landgraf, Y. Zhou, X.Z. Qiu, Y. P. Viyogi, T. Ljubicic, L. Ruan, K. Xin, Yuanji Li, Xiaofeng Zhu, H. F. Chen, S. Qian, Vikas Singhal, M.R. Dutt-Mazumdar, M. Shao, R. Soja, D. Thein, Anand Kumar Dubey, C. D'Agostino, M. Calderon De La Barca Sanchez, T. Nussbaum, Z. Ning, Huangshan Chen, A. H. Tang, W. J. Llope, J. Butterworth, R. N. Singaraju, Yi Wang, Sukalyan Chattopadhyay, Shuaib Ahmad Khan, W. Christie, A. Davila, R. F. Clarke, J. Schambach, T. K. Nayak, Lanny Ray, and Rolf K. Reed

Subjects
Physics, Nuclear and High Energy Physics, Muon, Freon, business.industry, Detector, STRIPS, law.invention, Nuclear physics, Telescope, Time of flight, Optics, law, business, Relativistic Heavy Ion Collider, Instrumentation, Beam (structure)
Abstract

A new prototype of a Long-Strip Multi-Gap Resistive Plate Chamber (LMRPC) for the STAR Muon Telescope Detector (MTD) at RHIC has been developed. This prototype has an active area of 52 x 90 cm(2) and consists of six 250 mu m wide gaps. Each detector has 12 strips, read-out at both ends, which are each 3.8 cm wide and 90 cm long with 0.6 cm intervals. In cosmic-ray tests, the efficiency was larger than 95% and the time resolution was similar to 75 ps for the 94% Freon, 5% iso-butane, and 1% SF6 gas mixture. There was good uniformity in the performance across the different strips. The module was also tested in a proton beam at IHEP in Beijing. The efficiency was close to 100% and the best timing resolution achieved was 55 ps for the 90% Freon, 5% iso-butane, and 5% SF6 gas mixture. Trigger scans along and across the strip direction were also performed. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.

Published
2011

47. Heat-Modeling of Microwave Assisted Epoxidation of Palm Acid Oil

Author

K. Xin Ning, L. Wei Zhan, and N. Saifuddin

Subjects
Multidisciplinary, Microwave chemistry, Chemistry, Microwave oven, Heat transfer, Analytical chemistry, Activation energy, Chemical reactor, Chemical reaction, Microwave, Catalysis
Abstract

Problem statement: While microwave chemistry could well be the most convenient, rapid and energy-saving way to initiate a chemical reaction, the issues of thermal versus microwave specific effect remain unaddressed. Approach: A three-dimensional Finite Element Model (FEM) was developed to predict temperature profile during the enzymatic epoxidation of palm acid oil using microwave heating. Three-dimensional partial differential equations are formulated for the electromagnetic field and heat and mass transfer processes. The temperature profile of the FEM generated from the commercial software (ANSYS Emag) was verified using experimental data from microwave oven heated samples containing palm acid oil and reactants in cylindrical bottles and has compared favorably with real time data. An Infra Red thermometer was used to measure temperature of the reactants during the real time experiment to ensure less contact with the reaction vessel. Results: Apart from ascertaining the temperature profile of the epoxidation process in the cylindrical bottle, the heat-modeling of this reaction can predict the Energy required during the reaction and provide insights to non-thermal microwave effects. It has shown the possibility of Microwave Non-Thermal Effects and Microwave Selectivity in Substrate Specificity. The energy used by the microwave irradiated reaction is by far much lesser than the energy used in conventional heating. This study has also improved the epoxidation process of Palm Acid Oil by incorporating enzyme as a catalyst and using microwave heating. Epoxidation can be done rapidly and at a lower level of activation energy of 27.767 kJ mol−1. It is a green process with increased efficiency as it reduced a typically 5-hour reaction to less than an hour. Conclusion: In this study, a quantitative view of a microwave assisted process of enzymatic epoxidation has been established. We have successfully developed and experimentally validated a 3D electromagnetic heat transfer model. This model can thus be used to predict the energy of the epoxidation and other future microwave reactions. the study also have shown the existence of microwave non-thermal effects and microwave selectivity in substrate specificity.

Published
2011

48. Azimuthal Anisotropy inU+UandAu+AuCollisions at RHIC

Author

N. Xu, P. Filip, O. D. Tsai, H. Qiu, M. Tokarev, Yang Yang, M. K. Mustafa, M. C. Cervantes, L. Song, P. Pile, G. D. Westfall, K. Poniatowska, D. Kalinkin, Anju Bhasin, Y. Li, Jun Deng, F. Videbæk, W. Q. Shen, Xiang Sun, T. D. S. Stanislaus, S. K. Gupta, Giacomo Contin, A. Roy, J. Rusnak, J. L. Zhang, M. Calderon De La Barca Sanchez, A. I. Hamad, A. F. Kraishan, Wei Xie, B. J. Summa, G. Webb, L. Ruan, J. C. Dunlop, L. Wen, H. H. Wieman, A. Aparin, R. P. Scharenberg, Christina Markert, R. Ma, I. Kulakov, D. Smirnov, O. Rusnakova, H. S. Matis, D. Garand, Xiang Li, A. Lebedev, Nihar Sahoo, G. Eppley, Zhigang Xiao, Zubayer Ahammed, Y. Pandit, X. C. Chen, Zebo Tang, Zhiming Li, Sevil Salur, Y. Wang, P. Huck, N. G. Minaev, J. B. Zhang, D. D. Koetke, J. E. Draper, P. Federic, L. K. Kosarzewski, W. W. Jacobs, Leo Clifford Greiner, Sergey Voloshin, J. Lauret, N. Schmitz, E. Shahaliev, S. Ramachandran, O. Eyser, R. Lednicky, J. Pluta, J. Alford, J. C. Webb, Y. Guo, Z. Feng, A. M. Poskanzer, Z. Ye, T. Tarnowsky, W. Guryn, Jongmin Lee, Q. Y. Shou, T. P. Burton, M. M. Mondal, M. Lomnitz, Anthony Robert Timmins, Adam Ryszard Kisiel, W. Li, Y. F. Wu, R. L. Ray, Thomas Humanic, A. Kechechyan, A. K. Bhati, C. Perkins, Zongye Zhang, Abdel Nasser Tawfik, D. Keane, I. G. Bordyuzhin, Mirko Planinic, W. J. Llope, Xiaofeng Luo, Z. Chang, P. Seyboth, Pradip Kumar Sahu, Nikolai Smirnov, J. Fedorisin, Cheng Li, B. Pawlik, R. Pak, Guo-Liang Ma, K. Yip, J. S. Wang, H. J. Crawford, L. G. Efimov, H. Z. Huang, R. Varma, S. Vokal, T. K. Nayak, J. Engelage, Roli Esha, T. Ljubicic, J. K. Adkins, B. S. Page, Rene Bellwied, Jie Zhao, S. Horvat, R. Witt, T. Kollegger, D. P. Kikola, A. S. Hirsch, Anik Gupta, Robert Vertesi, G. Nigmatkulov, R. Fatemi, Y. Panebratsev, L. He, Niseem Magdy, R. R. Debbe, H. Caines, Sudhir Raniwala, Leszek Adamczyk, B. Stringfellow, P. Sorensen, S. Mioduszewski, Jaroslav Bielcik, P. Kravtsov, A. M. Schmah, Jana Bielcikova, P. Bhattarai, Isaac Upsal, F. Liu, Miroslav Simko, Shangfeng Yang, J. H. Chen, K. Krueger, A. Quintero, J. L. Romero, W. Zha, G. Agakishiev, D. S. Gunarathne, Donald M. McDonald, D. Grosnick, M. Vandenbroucke, M. Posik, R. E. Tribble, Frank Jm Geurts, P. Chaloupka, D. A. Morozov, Prithwish Tribedy, Xiaofeng Zhu, M. A. Szelezniak, L. Didenko, I. Chakaberia, Z. J. Xu, D. Cebra, B. K. Srivastava, D. G. Underwood, I. Kisel, H. M. Spinka, A. Ogawa, Q. Yang, J. Y. Zhang, D. L. Olvitt, S. Trentalange, Gerald W Hoffmann, J. M. Landgraf, P. V. Shanmuganathan, Y. J. Sun, Subhasis Chattopadhyay, K. Meehan, C. Dilks, S. Kabana, K. Kauder, Lokesh Kumar, A. Banerjee, L. E. Dunkelberger, J. Cheng, R. D. Majka, G. Odyniec, M. Cherney, N. Yu, Y. Zoulkarneeva, L. C. De Silva, E. C. Aschenauer, C. Zhong, J. L. Drachenberg, O. V. Rogachevskiy, Olga Evdokimov, Barbara Antonina Trzeciak, Kejun Kang, L. V. Nogach, Y. P. Viyogi, Hua Pei, S. K. Tripathy, J. Porter, A. Gibson, J. Schambach, S. Margetis, H. J. Jang, Xiangming Sun, M. Strikhanov, A. A. Derevschikov, Basanta Kumar Nandi, Y. Fisyak, Sumit R. Das, S. Zhang, X. Dong, Lin Ma, K. Oh, I. Sakrejda, W. Christie, G. Van Nieuwenhuizen, M. Zyzak, V. A. Okorokov, Kun Jiang, J. Sandweiss, M. A.C. Lamont, S. Y. Noh, Nasim, M. R. Girard, Mukesh Sharma, R. Stock, G. Wang, E. P. Sichtermann, Jay Roberts, N. K. Pruthi, D. Tlusty, D. Arkhipkin, A. Hamed, Rashmi Raniwala, Xin-Yuan Huang, Z. J. Sun, L. Yi, A. Sarkar, Andrey Vasiliev, J. M. Campbell, Nilay Shah, H. W. Ke, Jorn Henning Putschke, T. Ullrich, S. Heppelmann, Radoslaw Antoni Kycia, A. V. Brandin, K. Xin, Z. H. Khan, I. G. Alekseev, J. H. Thomas, C. M. Du, B. Di Ruzza, H. S. Xu, M. A. Lisa, Janet Elizabeth Seger, T. G. Dedovich, L. P. Zhou, Yu-Gang Ma, Madan M. Aggarwal, Fuqiang Wang, Xuan Zhang, J. W. Harris, A. Manion, Hanna Paulina Zbroszczyk, A. Vossen, M. Stepanov, G. S. Averichev, F. Zhao, P. Yepes, A. H. Tang, I. Bunzarov, Bernd Surrow, W. B. Schmidke, C. A. Gagliardi, Michal Sumbera, S. W. Wissink, Y. Zhang, Nikola Poljak, Q. H. Xu, Bedangadas Mohanty, A. Peterson, I. K. Yoo, R. Haque, B. Huang, C. E. Flores, E. G. Judd, R. S. Longacre, G. Igo, J. Novak, B. Sharma, J. Bouchet, K. D. Landry, J. Butterworth, H. G. Ritter, Rafal Sikora, L. C. Bland, Y. F. Xu, D. N. Svirida, M. J. Skoby, L. Fulek, C. Yang, David Jonathan Hofman, H. Masui, S. B. Nurushev, S. Fazio, Haiyan Wang, M. Shao, Y. X. Pan, G. Van Buren, S. S. Shi, and L. Kotchenda

Subjects
Quark, Quantum chromodynamics, Physics, Particle physics, Nuclear Theory, Hadron, Elliptic flow, General Physics and Astronomy, Gluon, Nuclear physics, Quark–gluon plasma, Multiplicity (chemistry), Nuclear Experiment, Relativistic Heavy Ion Collider
Abstract

Collisions between prolate uranium nuclei are used to study how particle production and azimuthal anisotropies depend on initial geometry in heavy-ion collisions. We report the two- and four-particle cumulants, v(2){2} and v(2){4}, for charged hadrons from U + U collisions at root s(NN) = 193 GeV and Au + Au collisions at root s(NN) = 200 GeV. Nearly fully overlapping collisions are selected based on the energy deposited by spectators in zero degree calorimeters (ZDCs). Within this sample, the observed dependence of v(2){2} on multiplicity demonstrates that ZDC information combined with multiplicity can preferentially select different overlap configurations in U + U collisions. We also show that v(2) vs multiplicity can be better described by models, such as gluon saturation or quark participant models, that eliminate the dependence of the multiplicity on the number of binary nucleon-nucleon collisions.

Published
2015

49. Precision Measurement of the Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions ats=200 GeV

Author

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

Subjects
Physics, Particle physics, Scattering, media_common.quotation_subject, General Physics and Astronomy, Parton, Polarization (waves), Asymmetry, Gluon, Nuclear physics, Distribution function, High Energy Physics::Experiment, Nuclear Experiment, Relativistic Heavy Ion Collider, media_common
Abstract

We report a new measurement of the midrapidity inclusive jet longitudinal double-spin asymmetry, A_{LL}, in polarized pp collisions at center-of-mass energy sqrt[s]=200 GeV. The STAR data place stringent constraints on polarized parton distribution functions extracted at next-to-leading order from global analyses of inclusive deep-inelastic scattering (DIS), semi-inclusive DIS, and RHIC pp data. The measured asymmetries provide evidence at the 3σ level for positive gluon polarization in the Bjorken-x region x>0.05.

Published
2015

50. Measurements of dielectron production in Au + Au collisions atsNN=200GeV from the STAR experiment

Author

Zhigang Xiao, S. Fazio, Jorn Henning Putschke, A. V. Brandin, Bernd Surrow, J. C. Dunlop, L. Wen, Nasim, K. Xin, Z. H. Khan, N. G. Minaev, J. W. Harris, J. Engelage, Xiangming Sun, P. Bhattarai, Isaac Upsal, Zubayer Ahammed, W. B. Schmidke, J. Porter, T. P. Burton, G. Nigmatkulov, C. A. Gagliardi, N. Yu, J. M. Landgraf, M. Strikhanov, J. Sandweiss, Q. H. Xu, Kejun Kang, L. V. Nogach, Haiyan Wang, Michal Sumbera, J. K. Adkins, Ivan Kisel, Jaroslav Bielcik, Zhiming Li, Sumit R. Das, M. A. Szelezniak, R. Fatemi, L. He, G. Van Nieuwenhuizen, Zongye Zhang, J. L. Romero, Anik Gupta, P. Yepes, D. Tlusty, I. G. Bordyuzhin, Mirko Planinic, K. Krueger, D. L. Olvitt, Maksym Zyzak, N. Xu, Frank Jm Geurts, P. Seyboth, O. V. Rogachevskiy, H. J. Jang, P. Chaloupka, P. Filip, P. Pile, G. D. Westfall, S. W. Wissink, A. H. Tang, Q. Y. Shou, Yi-Fei Xu, J. C. Webb, Y. J. Sun, C. Dilks, A. M. Poskanzer, Z. Ye, I. Bunzarov, N. K. Pruthi, M. J. Skoby, L. Fulek, Madan M. Aggarwal, Fuqiang Wang, X. Li, Z. J. Xu, Leszek Adamczyk, S. Trentalange, M. K. Mustafa, Nikola Poljak, K. Yip, A. Roy, J. S. Wang, K. Meehan, R. Pak, J. L. Drachenberg, Olga Evdokimov, Barbara Antonina Trzeciak, M. Cherney, X. Huang, A. Kechechyan, P. Federic, A. Manion, Pradip Kumar Sahu, Y. P. Viyogi, T. J. Humanic, L. C. Bland, R. R. Debbe, C-Q. Li, Y. F. Wu, S. H. Zhang, A. Vossen, Lokesh Kumar, G. Eppley, I. Kulakov, Y. Li, M. Calderon De La Barca Sanchez, A. I. Hamad, A. Peterson, M. Vandenbroucke, Hua Pei, S. K. Tripathy, R. P. Scharenberg, Christina Markert, Z. Chang, J. Rusnak, Abdel Nasser Tawfik, A. F. Kraishan, J. Pluta, D. Smirnov, B. Pawlik, H. Qiu, O. Rusnakova, L. Ruan, Jay Roberts, J. M. Campbell, I. K. Yoo, H. S. Matis, M. Tokarev, W. Li, A. Gibson, K. Poniatowska, Zebo Tang, Jana Bielcikova, B. Huang, S. K. Gupta, R. Varma, Giacomo Contin, R. Haque, Radoslaw Antoni Kycia, Leo Clifford Greiner, B. S. Page, Rene Bellwied, Basanta Kumar Nandi, T. D. S. Stanislaus, R. S. Longacre, M. Posik, H. W. Ke, T. G. Dedovich, I. G. Alekseev, L. K. Kosarzewski, D. P. Kikola, R. E. Tribble, C. E. Flores, Nihar Sahoo, Y. Wang, H. H. Wieman, Y. Fisyak, H. M. Spinka, B. Stringfellow, Sergey Voloshin, P. Sorensen, E. G. Judd, X. C. Chen, W. W. Jacobs, Wei Xie, V. A. Okorokov, Gerald W Hoffmann, P. Huck, Lin Ma, M. A. Lisa, C. Perkins, K. Oh, B. Di Ruzza, I. Sakrejda, J. Lauret, A. Banerjee, A. Aparin, Junjie Zhang, O. D. Tsai, Bedangadas Mohanty, Xiaofeng Luo, K. Jiang, G. Igo, G. Odyniec, Y. Pandit, Anthony Robert Timmins, J. Novak, Adam Ryszard Kisiel, Y. Zoulkarneeva, N. Svirida, Mukesh Sharma, G. Wang, B. Sharma, J. Bouchet, N. Schmitz, H. J. Crawford, L. Didenko, I. Chakaberia, R. Lednicky, L. Kochenda, T. Tarnowsky, Anju Bhasin, Guo-Liang Ma, L. Yi, E. Shahaliev, J. H. Thomas, K. D. Landry, J. Butterworth, D. Arkhipkin, A. Hamed, H. G. Ritter, R. Witt, M. C. Cervantes, Z. J. Sun, A. Lebedev, Nilay Shah, Rafal Sikora, P. V. Shanmuganathan, L. P. Zhou, M. R. Girard, S. Mioduszewski, L. Song, L. E. Dunkelberger, Donald M. McDonald, Prithwish Tribedy, Jian Deng, A. S. Hirsch, B. K. Srivastava, W. Q. Shen, R. Vertesi, G. Agakishiev, D. S. Gunarathne, A. A. Derevschikov, P. Kravtsov, A. M. Schmah, D. Cebra, F. Liu, Xiaofeng Zhu, S. Kabana, Xiang Sun, A. Ogawa, R. D. Majka, J. Schambach, F. Videbæk, G. Webb, W. Christie, Sukalyan Chattopadhyay, Andrey Vasiliev, Janet Elizabeth Seger, Yifei Zhang, Z. Feng, M. Lomnitz, M. Stepanov, G. S. Averichev, K. Kauder, D. Garand, Sevil Salur, Y. Panebratsev, D. Grosnick, A. K. Bhati, D. Keane, Nikolai Smirnov, R. Stock, L. G. Efimov, T. K. Nayak, M. Shao, Y. X. Pan, G. Van Buren, S. S. Shi, C. Yang, David Jonathan Hofman, H. Masui, S. B. Nurushev, M. A.C. Lamont, S. Y. Noh, Roli Esha, Yu-Gang Ma, Jie Zhao, S. Horvat, Xuan Zhang, Hanna Paulina Zbroszczyk, M. Simko, W. Zha, Kurt Jung, A. Sarkar, W. J. Llope, J. Alford, W. Guryn, J. Fedorisin, H. Z. Huang, S. Vokal, D. G. Underwood, Q. Yang, J. Cheng, Yang Yang, L. C. De Silva, Shangfeng Yang, J. H. Chen, D. A. Morozov, Thorsten Sven Kollegger, D. Kalinkin, S. Heppelmann, B. J. Summa, J. B. Zhang, D. D. Koetke, J. E. Draper, S. Ramachandran, O. Eyser, M. M. Mondal, C. Zhong, E. C. Aschenauer, S. Margetis, X. Dong, Y. Guo, Jongmin Lee, R. L. Ray, R. Ma, T. Ljubicic, Niseem Magdy, H. Caines, Sudhir Raniwala, A. Quintero, E. P. Sichtermann, Rashmi Raniwala, T. Ullrich, C. M. Du, and H. S. Xu

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Hadron, Phi meson, Super Proton Synchrotron, Nuclear physics, Quark–gluon plasma, High Energy Physics::Experiment, Multiplicity (chemistry), Nuclear Experiment, Nucleon, Relativistic Heavy Ion Collider, STAR detector
Abstract

We report on measurements of dielectron (e(+) e(-)) production in Au + Au collisions at a center-of-mass energy of 200 GeV per nucleon-nucleon pair using the STAR detector at BNL Relativistic Heavy Ion Collider. Systematic measurements of the dielectron yield as a function of transverse momentum (p(T)) and collision centrality show an enhancement compared to a cocktail simulation of hadronic sources in the low invariant-mass region (M-ee < 1 GeV / c(2)). This enhancement cannot be reproduced by the rho-meson vacuum spectral function. In minimum-bias collisions, in the invariant-mass range of 0.30-0.76 GeV / c(2), integrated over the full pT acceptance, the enhancement factor is 1.76 +/- 0.06 (stat.) +/- 0.26 (sys.) +/- 0.29 (cocktail). The enhancement factor exhibits weak centrality and pT dependence in STAR's accessible kinematic regions, while the excess yield in this invariant-mass region as a function of the number of participating nucleons follows a power-law shape with a power of 1.44 +/- 0.10. Models that assume an in-medium broadening of the rho-meson spectral function consistently describe the observed excess in these measurements. Additionally, we report on measurements of omega-and phi-meson production through their e+ e(-) decay channel. These measurements show good agreement with Tsallis blast-wave model predictions, as well as, in the case of the phi meson, results through its K+ K- decay channel. In the intermediate invariant-mass region (1.1 < Mee < 3 GeV / c(2)), we investigate the spectral shapes from different collision centralities. Physics implications for possible in-medium modification of charmed hadron production and other physics sources are discussed.

Published
2015

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