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1. Collision-energy dependence of deuteron cumulants and proton-deuteron correlations in Au+Au collisions at RHIC

Author: M.I. Abdulhamid, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, E.C. Aschenauer, S. Aslam, J. Atchison, V. Bairathi, J.G. Ball Cap, K. Barish, R. Bellwied, P. Bhagat, A. Bhasin, S. Bhatta, S.R. Bhosale, J. Bielcik, J. Bielcikova, J.D. Brandenburg, C. Broodo, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, P. Chaloupka, B.K. Chan, Z. Chang, A. Chatterjee, D. Chen, J. Chen, J.H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, G. Dale-Gau, A. Das, I.M. Deppner, A. Dhamija, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, O. Eyser, R. Fatemi, S. Fazio, C.J. Feng, Y. Feng, E. Finch, Y. Fisyak, F.A. Flor, C. Fu, C.A. Gagliardi, T. Galatyuk, T. Gao, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison-Smith, W. He, X.H. He, Y. He, N. Herrmann, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, M. Isshiki, W.W. Jacobs, A. Jalotra, C. Jena, A. Jentsch, Y. Ji, J. Jia, C. Jin, X. Ju, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, D. Keane, A. Khanal, Y.V. Khyzhniak, D.P. Kikoła, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L.K. Kosarzewski, L. Kumar, M.C. Labonte, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, J.H. Lee, Y.H. Leung, N. Lewis, C. Li, D. Li, H-S. Li, H. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, C. Liu, G. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, O. Lomicky, R.S. Longacre, E.M. Loyd, T. Lu, J. Luo, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, R. Manikandhan, S. Margetis, C. Markert, H.S. Matis, G. McNamara, O. Mezhanska, K. Mi, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, M.I. Nagy, A.S. Nain, J.D. Nam, M. Nasim, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, T. Nonaka, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B.S. Page, R. Pak, S. Pal, A. Pandav, T. Pani, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, J. Pluta, B.R. Pokhrel, M. Posik, T. Protzman, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, C. Racz, S.K. Radhakrishnan, A. Rana, R.L. Ray, R. Reed, H.G. Ritter, C.W. Robertson, M. Robotkova, M.A. Rosales Aguilar, D. Roy, P. Roy Chowdhury, L. Ruan, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, S. Sato, B.C. Schaefer, W.B. Schmidke, N. Schmitz, F-J. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, P.V. Shanmuganathan, T. Shao, M. Sharma, N. Sharma, R. Sharma, S.R. Sharma, A.I. Sheikh, D. Shen, D.Y. Shen, K. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M.J. Skoby, N. Smirnov, Y. Söhngen, Y. Song, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, B. Stringfellow, Y. Su, A.A.P. Suaide, M. Sumbera, C. Sun, X. Sun, Y. Sun, B. Surrow, Z.W. Sweger, A.C. Tamis, A.H. Tang, Z. Tang, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, S. Trentalange, P. Tribedy, S.K. Tripathy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, C.Y. Tsang, Z. Tu, J. Tyler, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, J. Wang, K. Wang, X. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, G.D. Westfall, D. Wielanek, H. Wieman, G. Wilks, S.W. Wissink, R. Witt, J. Wu, X. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, W. Zhang, X. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Heavy-ion collisions, Deuteron production, Coalescence, Thermal model, Higher moments, Critical point, Physics, QC1-999
Abstract: We report the first measurements of cumulants, up to 4th order, of deuteron number distributions and proton-deuteron correlations in Au+Au collisions recorded by the STAR experiment in phase-I of Beam Energy Scan (BES) program at the Relativistic Heavy Ion Collider. Deuteron cumulants, their ratios, and proton-deuteron mixed cumulants are presented for different collision centralities covering a range of center-of-mass energy per nucleon pair sNN=7.7 to 200 GeV. It is found that the cumulant ratios at lower collision energies favor a canonical ensemble over a grand canonical ensemble in thermal models. An anti-correlation between proton and deuteron multiplicity is observed across all collision energies and centralities, consistent with the expectation from global baryon number conservation. The UrQMD model coupled with a phase-space coalescence mechanism qualitatively reproduces the collision-energy dependence of cumulant ratios and proton-deuteron correlations.
Published: 2024
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2. Upper limit on the chiral magnetic effect in isobar collisions at the Relativistic Heavy-Ion Collider

Author: M. I. Abdulhamid, B. E. Aboona, J. Adam, J. R. Adams, G. Agakishiev, I. Aggarwal, M. M. Aggarwal, Z. Ahammed, A. Aitbaev, I. Alekseev, E. Alpatov, A. Aparin, S. Aslam, J. Atchison, G. S. Averichev, V. Bairathi, J. G. Ball Cap, K. Barish, P. Bhagat, A. Bhasin, S. Bhatta, S. R. Bhosale, I. G. Bordyuzhin, J. D. Brandenburg, A. V. Brandin, C. Broodo, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, B. K. Chan, Z. Chang, A. Chatterjee, D. Chen, J. Chen, J. H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H. J. Crawford, G. Dale-Gau, A. Das, T. G. Dedovich, I. M. Deppner, A. A. Derevschikov, A. Dhamija, P. Dixit, X. Dong, J. L. Drachenberg, E. Duckworth, J. C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, O. Eyser, R. Fatemi, S. Fazio, C. J. Feng, Y. Feng, E. Finch, Y. Fisyak, F. A. Flor, C. Fu, T. Gao, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, A. Hamed, Y. Han, M. D. Harasty, J. W. Harris, H. Harrison-Smith, W. He, X. H. He, Y. He, C. Hu, Q. Hu, Y. Hu, H. Huang, H. Z. Huang, S. L. Huang, T. Huang, X. Huang, Y. Huang, T. J. Humanic, M. Isshiki, W. W. Jacobs, A. Jalotra, C. Jena, Y. Ji, J. Jia, C. Jin, X. Ju, E. G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, D. Keane, A. Kechechyan, A. Khanal, A. Kiselev, A. G. Knospe, H. S. Ko, L. Kochenda, A. A. Korobitsin, A. Yu. Kraeva, P. Kravtsov, L. Kumar, M. C. Labonte, R. Lacey, J. M. Landgraf, A. Lebedev, R. Lednicky, J. H. Lee, Y. H. Leung, N. Lewis, C. Li, D. Li, H-S. Li, H. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, T. Lin, Y. Lin, C. Liu, G. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, O. Lomicky, R. S. Longacre, E. M. Loyd, T. Lu, J. Luo, X. F. Luo, V. B. Luong, L. Ma, R. Ma, Y. G. Ma, N. Magdy, R. Manikandhan, S. Margetis, H. S. Matis, G. McNamara, O. Mezhanska, K. Mi, N. G. Minaev, B. Mohanty, M. M. Mondal, I. Mooney, D. A. Morozov, A. Mudrokh, M. I. Nagy, A. S. Nain, J. D. Nam, M. Nasim, E. Nedorezov, D. Neff, J. M. Nelson, D. B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L. V. Nogach, T. Nonaka, G. Odyniec, A. Ogawa, S. Oh, V. A. Okorokov, K. Okubo, B. S. Page, R. Pak, S. Pal, A. Pandav, A. K. Pandey, Y. Panebratsev, T. Pani, P. Parfenov, A. Paul, C. Perkins, B. R. Pokhrel, M. Posik, A. Povarov, T. Protzman, N. K. Pruthi, J. Putschke, Z. Qin, H. Qiu, C. Racz, S. K. Radhakrishnan, A. Rana, R. L. Ray, H. G. Ritter, C. W. Robertson, O. V. Rogachevsky, M. A. Rosales Aguilar, D. Roy, L. Ruan, A. K. Sahoo, N. R. Sahoo, H. Sako, S. Salur, E. Samigullin, S. Sato, B. C. Schaefer, W. B. Schmidke, N. Schmitz, J. Seger, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P. V. Shanmuganathan, T. Shao, M. Sharma, N. Sharma, R. Sharma, S. R. Sharma, A. I. Sheikh, D. Shen, D. Y. Shen, K. Shen, S. S. Shi, Y. Shi, Q. Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M. J. Skoby, Y. Söhngen, Y. Song, B. Srivastava, T. D. S. Stanislaus, D. J. Stewart, M. Strikhanov, B. Stringfellow, Y. Su, C. Sun, X. Sun, Y. Sun, B. Surrow, D. N. Svirida, Z. W. Sweger, A. C. Tamis, A. H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J. H. Thomas, D. Tlusty, T. Todoroki, M. V. Tokarev, S. Trentalange, P. Tribedy, O. D. Tsai, C. Y. Tsang, Z. Tu, J. Tyler, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, A. N. Vasiliev, V. Verkest, F. Videbæk, S. Vokal, S. A. Voloshin, F. Wang, G. Wang, J. S. Wang, J. Wang, K. Wang, X. Wang, Y. Wang, Z. Wang, J. C. Webb, P. C. Weidenkaff, G. D. Westfall, H. Wieman, G. Wilks, S. W. Wissink, J. Wu, X. Wu, Wu X., B. Xi, Z. G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q. H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, W. Zhang, X. Zhang, Y. Zhang, Z. J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: The chiral magnetic effect (CME) is a phenomenon that arises from the QCD anomaly in the presence of an external magnetic field. The experimental search for its evidence has been one of the key goals of the physics program of the Relativistic Heavy-Ion Collider. The STAR Collaboration has previously presented the results of a blind analysis of isobar collisions (_{44}^{96}Ru+_{44}^{96}Ru, _{40}^{96}Zr+_{40}^{96}Zr) in the search for the CME. The isobar ratio (Y) of CME-sensitive observable, charge separation scaled by elliptic anisotropy, is close to but systematically larger than the inverse multiplicity ratio, the naive background baseline. This indicates the potential existence of a CME signal and the presence of remaining nonflow background due to two- and three-particle correlations, which are different between the isobars. In this postblind analysis, we estimate the contributions from those nonflow correlations as a background baseline to Y, utilizing the isobar data as well as Heavy Ion Jet Interaction Generator simulations. This baseline is found consistent with the isobar ratio measurement, and an upper limit of 10% at 95% confidence level is extracted for the CME fraction in the charge separation measurement in isobar collisions at sqrt[s_{NN}]=200 GeV.
Published: 2024
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3. Measurements of the Z0/γ⁎ cross section and transverse single spin asymmetry in 510 GeV p + p collisions

Author: M.I. Abdulhamid, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, E.C. Aschenauer, S. Aslam, J. Atchison, V. Bairathi, J.G. Ball Cap, K. Barish, R. Bellwied, P. Bhagat, A. Bhasin, S. Bhatta, S.R. Bhosale, J. Bielcik, J. Bielcikova, J.D. Brandenburg, C. Broodo, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, P. Chaloupka, B.K. Chan, Z. Chang, A. Chatterjee, D. Chen, J. Chen, J.H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, G. Dale-Gau, A. Das, I.M. Deppner, A. Dhamija, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, O. Eyser, R. Fatemi, S. Fazio, C.J. Feng, Y. Feng, E. Finch, Y. Fisyak, F.A. Flor, C. Fu, C.A. Gagliardi, T. Galatyuk, T. Gao, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison-Smith, W. He, X.H. He, Y. He, N. Herrmann, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, M. Isshiki, W.W. Jacobs, A. Jalotra, C. Jena, A. Jentsch, Y. Ji, J. Jia, C. Jin, X. Ju, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, D. Keane, A. Khanal, Y.V. Khyzhniak, D.P. Kikoła, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L.K. Kosarzewski, L. Kumar, M.C. Labonte, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, J.H. Lee, Y.H. Leung, N. Lewis, C. Li, D. Li, H.-S. Li, H. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, C. Liu, G. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, O. Lomicky, R.S. Longacre, E.M. Loyd, T. Lu, J. Luo, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, R. Manikandhan, S. Margetis, C. Markert, G. McNamara, O. Mezhanska, K. Mi, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, J. Mrazkova, M.I. Nagy, A.S. Nain, J.D. Nam, M. Nasim, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, T. Nonaka, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B.S. Page, R. Pak, S. Pal, A. Pandav, A.K. Pandey, T. Pani, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, J. Pluta, B.R. Pokhrel, M. Posik, T. Protzman, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, C. Racz, S.K. Radhakrishnan, A. Rana, R.L. Ray, R. Reed, C.W. Robertson, M. Robotkova, M.A. Rosales Aguilar, D. Roy, P. Roy Chowdhury, L. Ruan, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, S. Sato, B.C. Schaefer, W.B. Schmidke, N. Schmitz, F.-J. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, P.V. Shanmuganathan, T. Shao, M. Sharma, N. Sharma, R. Sharma, S.R. Sharma, A.I. Sheikh, D. Shen, D.Y. Shen, K. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M.J. Skoby, N. Smirnov, Y. Söhngen, Y. Song, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, Y. Su, M. Sumbera, C. Sun, X. Sun, Y. Sun, B. Surrow, M. Svoboda, Z.W. Sweger, A.C. Tamis, A.H. Tang, Z. Tang, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, S. Trentalange, P. Tribedy, S.K. Tripathy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, C.Y. Tsang, Z. Tu, J. Tyler, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, J. Wang, K. Wang, X. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, G.D. Westfall, D. Wielanek, H. Wieman, G. Wilks, S.W. Wissink, R. Witt, J. Wu, X. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, W. Zhang, X. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Z0, Cross section, Transverse momentum dependent parton distribution functions (TMDs), Transverse single spin asymmetry (TSSA, AN), Sivers function, Physics, QC1-999
Abstract: The differential cross section for Z0 production, measured as a function of the boson's transverse momentum (pT), provides important constraints on the evolution of the transverse momentum dependent parton distribution functions (TMDs). The transverse single spin asymmetry (TSSA) of the Z0 is sensitive to one of the polarized TMDs, the Sivers function, which is predicted to have the opposite sign in p+p →W/Z+X from that which enters in semi-inclusive deep inelastic scattering. In this Letter, the STAR Collaboration reports the first measurement of the Z0/γ⁎ differential cross section as a function of its pT in p+p collisions at a center-of-mass energy of 510 GeV, together with the Z0/γ⁎ total cross section. We also report the measurement of Z0/γ⁎ TSSA in transversely polarized p+p collisions at 510 GeV.
Published: 2024
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4. Results on elastic cross sections in proton–proton collisions at s=510 GeV with the STAR detector at RHIC

Author: M.I. Abdulhamid, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, E.C. Aschenauer, S. Aslam, J. Atchison, V. Bairathi, J.G. Ball Cap, K. Barish, R. Bellwied, P. Bhagat, A. Bhasin, S. Bhatta, S.R. Bhosale, J. Bielcik, J. Bielcikova, J.D. Brandenburg, C. Broodo, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, P. Chaloupka, B.K. Chan, Z. Chang, A. Chatterjee, D. Chen, J. Chen, J.H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, G. Dale-Gau, A. Das, I.M. Deppner, A. Dhamija, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, O. Eyser, R. Fatemi, S. Fazio, C.J. Feng, Y. Feng, E. Finch, Y. Fisyak, F.A. Flor, C. Fu, C.A. Gagliardi, T. Galatyuk, T. Gao, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison-Smith, W. He, X.H. He, Y. He, N. Herrmann, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, M. Isshiki, W.W. Jacobs, A. Jalotra, C. Jena, A. Jentsch, Y. Ji, J. Jia, C. Jin, X. Ju, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, D. Keane, A. Khanal, Y.V. Khyzhniak, D.P. Kikoła, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L.K. Kosarzewski, L. Kumar, M.C. Labonte, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, J.H. Lee, Y.H. Leung, N. Lewis, C. Li, D. Li, H-S. Li, H. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, C. Liu, G. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, O. Lomicky, R.S. Longacre, E.M. Loyd, T. Lu, J. Luo, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, R. Manikandhan, S. Margetis, C. Markert, H.S. Matis, G. McNamara, O. Mezhanska, K. Mi, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, M.I. Nagy, A.S. Nain, J.D. Nam, M. Nasim, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, T. Nonaka, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B.S. Page, R. Pak, S. Pal, A. Pandav, T. Pani, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, J. Pluta, B.R. Pokhrel, M. Posik, T. Protzman, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, C. Racz, S.K. Radhakrishnan, A. Rana, R.L. Ray, R. Reed, H.G. Ritter, C.W. Robertson, M. Robotkova, M.A. Rosales Aguilar, D. Roy, P. Roy Chowdhury, L. Ruan, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, S. Sato, B.C. Schaefer, W.B. Schmidke, N. Schmitz, F-J. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, P.V. Shanmuganathan, T. Shao, M. Sharma, N. Sharma, R. Sharma, S.R. Sharma, A.I. Sheikh, D. Shen, D.Y. Shen, K. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M.J. Skoby, N. Smirnov, Y. Söhngen, Y. Song, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, B. Stringfellow, Y. Su, A.A.P. Suaide, M. Sumbera, C. Sun, X. Sun, Y. Sun, B. Surrow, Z.W. Sweger, A.C. Tamis, A.H. Tang, Z. Tang, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, S. Trentalange, P. Tribedy, S.K. Tripathy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, C.Y. Tsang, Z. Tu, J. Tyler, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, J. Wang, K. Wang, X. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, G.D. Westfall, D. Wielanek, H. Wieman, G. Wilks, S.W. Wissink, R. Witt, J. Wu, X. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, W. Zhang, X. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Elastic scattering, B-slope, Diffraction, Proton–proton collisions, Physics, QC1-999
Abstract: We report results on an elastic cross section measurement in proton–proton collisions at a center-of-mass energy s=510 GeV, obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section is measured in the four-momentum transfer squared range 0.23≤−t≤0.67 GeV2. This is the only measurement of the proton-proton elastic cross section in this t range for collision energies above the Intersecting Storage Rings (ISR) and below the Large Hadron Collider (LHC) colliders. We find that a constant slope B does not fit the data in the aforementioned t range, and we obtain a much better fit using a second-order polynomial for B(t). This is the first measurement below the LHC energies for which the non-constant behavior B(t) is observed. The t dependence of B is also determined using six subintervals of t in the STAR measured t range, and is in good agreement with the phenomenological models. The measured elastic differential cross section dσ/dt agrees well with the results obtained at s=540 GeV for proton–antiproton collisions by the UA4 experiment. We also determine that the integrated elastic cross section within the STAR t-range is σelfid=462.1±0.9(stat.)±1.1(syst.)±11.6(scale) μb.
Published: 2024
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5. Measurement of electrons from open heavy-flavor hadron decays in Au+Au collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 200 GeV with the STAR detector

Author: The STAR collaboration, M. I. Abdulhamid, B. E. Aboona, J. Adam, L. Adamczyk, J. R. Adams, I. Aggarwal, M. M. Aggarwal, Z. Ahammed, D. M. Anderson, E. C. Aschenauer, S. Aslam, J. Atchison, V. Bairathi, W. Baker, J. G. Ball Cap, K. Barish, R. Bellwied, P. Bhagat, A. Bhasin, S. Bhatta, J. Bielcik, J. Bielcikova, J. D. Brandenburg, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, P. Chaloupka, B. K. Chan, Z. Chang, A. Chatterjee, D. Chen, J. Chen, J. H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H. J. Crawford, M. Csanád, G. Dale-Gau, A. Das, M. Daugherity, I. M. Deppner, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J. L. Drachenberg, E. Duckworth, J. C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, C. J. Feng, Y. Feng, E. Finch, Y. Fisyak, F. A. Flor, C. Fu, C. A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M. D. Harasty, J. W. Harris, H. Harrison-Smith, W. He, X. H. He, Y. He, N. Herrmann, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H. Z. Huang, S. L. Huang, T. Huang, X. Huang, Y. Huang, T. J. Humanic, D. Isenhower, M. Isshiki, W. W. Jacobs, A. Jalotra, C. Jena, A. Jentsch, Y. Ji, J. Jia, C. Jin, X. Ju, E. G. Judd, S. Kabana, M. L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, D. Keane, M. Kelsey, Y. V. Khyzhniak, D. P. Kikoła, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A. G. Knospe, H. S. Ko, L. K. Kosarzewski, L. Kramarik, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, R. Lacey, J. M. Landgraf, J. Lauret, A. Lebedev, J. H. Lee, Y. H. Leung, N. Lewis, C. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, M. A. Lisa, C. Liu, F. Liu, G. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W. J. Llope, O. Lomicky, R. S. Longacre, E. M. Loyd, T. Lu, N. S. Lukow, X. F. Luo, L. Ma, R. Ma, Y. G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H. S. Matis, J. A. Mazer, G. McNamara, K. Mi, S. Mioduszewski, B. Mohanty, M. M. Mondal, I. Mooney, A. Mukherjee, M. I. Nagy, A. S. Nain, J. D. Nam, M. Nasim, D. Neff, J. M. Nelson, D. B. Nemes, M. Nie, T. Niida, R. Nishitani, T. Nonaka, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B. S. Page, R. Pak, J. Pan, A. Pandav, A. K. Pandey, T. Pani, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, J. Pluta, B. R. Pokhrel, M. Posik, T. Protzman, V. Prozorova, N. K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, A. Quintero, C. Racz, S. K. Radhakrishnan, N. Raha, R. L. Ray, R. Reed, H. G. Ritter, C. W. Robertson, M. Robotkova, M. A. Rosales Aguilar, D. Roy, P. Roy Chowdhury, L. Ruan, A. K. Sahoo, N. R. Sahoo, H. Sako, S. Salur, S. Sato, W. B. Schmidke, N. Schmitz, F-J. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, P. V. Shanmuganathan, T. Shao, M. Sharma, N. Sharma, R. Sharma, S. R. Sharma, A. I. Sheikh, D. Y. Shen, K. Shen, S. S. Shi, Y. Shi, Q. Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M. J. Skoby, N. Smirnov, Y. Söhngen, Y. Song, B. Srivastava, T. D. S. Stanislaus, M. Stefaniak, D. J. Stewart, B. Stringfellow, Y. Su, A. A. P. Suaide, M. Sumbera, C. Sun, X. Sun, Y. Sun, B. Surrow, Z. W. Sweger, P. Szymanski, A. Tamis, A. H. Tang, Z. Tang, T. Tarnowsky, J. H. Thomas, A. R. Timmins, D. Tlusty, T. Todoroki, C. A. Tomkiel, S. Trentalange, R. E. Tribble, P. Tribedy, T. Truhlar, B. A. Trzeciak, O. D. Tsai, C. Y. Tsang, Z. Tu, J. Tyler, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S. A. Voloshin, F. Wang, G. Wang, J. S. Wang, X. Wang, Y. Wang, Z. Wang, J. C. Webb, P. C. Weidenkaff, G. D. Westfall, D. Wielanek, H. Wieman, G. Wilks, S. W. Wissink, R. Witt, J. Wu, X. Wu, Y. Wu, B. Xi, Z. G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q. H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, W. Zhang, X. Zhang, Y. Zhang, Z. J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Heavy Ion Experiments, Heavy Quark Production, Heavy-Ion Collision, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract We report a new measurement of the production of electrons from open heavy-flavor hadron decays (HFEs) at mid-rapidity (|y| < 0.7) in Au+Au collisions at s NN $$ \sqrt{s_{\textrm{NN}}} $$ = 200 GeV. Invariant yields of HFEs are measured for the transverse momentum range of 3.5 < p T < 9 GeV/c in various configurations of the collision geometry. The HFE yields in head-on Au+Au collisions are suppressed by approximately a factor of 2 compared to that in p + p collisions scaled by the average number of binary collisions, indicating strong interactions between heavy quarks and the hot and dense medium created in heavy-ion collisions. Comparison of these results with models provides additional tests of theoretical calculations of heavy quark energy loss in the quark-gluon plasma.
Published: 2023
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6. Erratum to: Evidence of Mass Ordering of Charm and Bottom Quark Energy Loss in Au+Au Collisions at RHIC

Author: M. S. Abdallah, B. E. Aboona, J. Adam, L. Adamczyk, J. R. Adams, J. K. Adkins, I. Aggarwal, M. M. Aggarwal, Z. Ahammed, D. M. Anderson, E. C. Aschenauer, J. Atchison, X. Bai, V. Bairathi, W. Baker, J. G. Ball Cap, K. Barish, R. Bellwied, P. Bhagat, A. Bhasin, S. Bhatta, J. Bielcik, J. Bielcikova, J. D. Brandenburg, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B. K. Chan, Z. Chang, A. Chatterjee, S. Chattopadhyay, D. Chen, J. Chen, J. H. Chen, X. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H. J. Crawford, M. Csanád, M. Daugherity, I. M. Deppner, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J. L. Drachenberg, E. Duckworth, J. C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, F. M. Fawzi, S. Fazio, C. J. Feng, Y. Feng, E. Finch, Y. Fisyak, A. Francisco, C. Fu, C. A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M. D. Harasty, J. W. Harris, H. Harrison, S. He, W. He, X. H. He, Y. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H. Z. Huang, S. L. Huang, T. Huang, X. Huang, Y. Huang, T. J. Humanic, D. Isenhower, M. Isshiki, W. W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, C. Jin, X. Ju, E. G. Judd, S. Kabana, M. L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H. W. Ke, D. Keane, M. Kelsey, Y. V. Khyzhniak, D. P. Kikoła, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A. G. Knospe, H. S. Ko, L. K. Kosarzewski, L. Kramarik, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, J. H. Kwasizur, R. Lacey, S. Lan, J. M. Landgraf, J. Lauret, A. Lebedev, J. H. Lee, Y. H. Leung, N. Lewis, C. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M. A. Lisa, F. Liu, H. Liu, T. Liu, X. Liu, Y. Liu, T. Ljubicic, W. J. Llope, R. S. Longacre, E. Loyd, T. Lu, N. S. Lukow, X. F. Luo, L. Ma, R. Ma, Y. G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H. S. Matis, J. A. Mazer, G. McNamara, S. Mioduszewski, B. Mohanty, M. M. Mondal, I. Mooney, A. Mukherjee, M. I. Nagy, A. S. Nain, J. D. Nam, Md. Nasim, K. Nayak, D. Neff, J. M. Nelson, D. B. Nemes, M. Nie, T. Niida, R. Nishitani, T. Nonaka, A. S. Nunes, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B. S. Page, R. Pak, J. Pan, A. Pandav, A. K. Pandey, T. Pani, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, J. Pluta, B. R. Pokhrel, J. Porter, M. Posik, T. Protzman, V. Prozorova, N. K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, A. Quintero, C. Racz, S. K. Radhakrishnan, N. Raha, R. L. Ray, R. Reed, H. G. Ritter, M. Robotkova, J. L. Romero, D. Roy, P. Roy Chowdhury, L. Ruan, A. K. Sahoo, N. R. Sahoo, H. Sako, S. Salur, S. Sato, W. B. Schmidke, N. Schmitz, F.-J. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, P. V. Shanmuganathan, M. Shao, T. Shao, R. Sharma, A. I. Sheikh, D. Y. Shen, K. Shen, S. S. Shi, Y. Shi, Q. Y. Shou, E. P. Sichtermann, R. Sikora, J. Singh, S. Singha, P. Sinha, M. J. Skoby, N. Smirnov, Y. Söhngen, W. Solyst, Y. Song, B. Srivastava, T. D. S. Stanislaus, D. J. Stewart, B. Stringfellow, A. A. P. Suaide, M. Sumbera, C. Sun, X. M. Sun, X. Sun, Y. Sun, B. Surrow, Z. W. Sweger, P. Szymanski, A. H. Tang, Z. Tang, T. Tarnowsky, J. H. Thomas, A. R. Timmins, D. Tlusty, T. Todoroki, C. A. Tomkiel, S. Trentalange, R. E. Tribble, P. Tribedy, S. K. Tripathy, T. Truhlar, B. A. Trzeciak, O. D. Tsai, C. Y. Tsang, Z. Tu, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S. A. Voloshin, F. Wang, G. Wang, J. S. Wang, P. Wang, X. Wang, Y. Wang, Z. Wang, J. C. Webb, P. C. Weidenkaff, G. D. Westfall, D. Wielanek, H. Wieman, S. W. Wissink, R. Witt, J. Wu, X. Wu, Y. Wu, B. Xi, Z. G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q. H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, Y. Zhang, Z. J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, J. Zhou, Y. Zhou, X. Zhu, M. Zurek, M. Zyzak, and STAR Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Published: 2023
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7. Energy dependence of intermittency for charged hadrons in Au+Au collisions at RHIC

Author: M.I. Abdulhamid, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, D.M. Anderson, E.C. Aschenauer, S. Aslam, J. Atchison, V. Bairathi, W. Baker, J.G. Ball Cap, K. Barish, R. Bellwied, P. Bhagat, A. Bhasin, S. Bhatta, J. Bielcik, J. Bielcikova, J.D. Brandenburg, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, P. Chaloupka, B.K. Chan, Z. Chang, A. Chatterjee, D. Chen, J. Chen, J.H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, G. Dale-Gau, A. Das, M. Daugherity, I.M. Deppner, A. Dhamija, L. Di Carlo, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, C.J. Feng, Y. Feng, E. Finch, Y. Fisyak, F.A. Flor, C. Fu, C.A. Gagliardi, T. Galatyuk, T. Gao, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison-Smith, W. He, X.H. He, Y. He, N. Herrmann, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, D. Isenhower, M. Isshiki, W.W. Jacobs, A. Jalotra, C. Jena, A. Jentsch, Y. Ji, J. Jia, C. Jin, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, D. Keane, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L.K. Kosarzewski, L. Kramarik, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, J.H. Lee, Y.H. Leung, N. Lewis, C. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, C. Liu, F. Liu, G. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, O. Lomicky, R.S. Longacre, E.M. Loyd, T. Lu, N.S. Lukow, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, G. McNamara, K. Mi, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, A. Mukherjee, M.I. Nagy, A.S. Nain, J.D. Nam, M. Nasim, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, R. Nishitani, T. Nonaka, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B.S. Page, R. Pak, J. Pan, A. Pandav, A.K. Pandey, T. Pani, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, J. Pluta, B.R. Pokhrel, M. Posik, T. Protzman, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, A. Quintero, C. Racz, S.K. Radhakrishnan, N. Raha, R.L. Ray, R. Reed, H.G. Ritter, C.W. Robertson, M. Robotkova, M.A. Rosales Aguilar, D. Roy, P. Roy Chowdhury, L. Ruan, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, S. Sato, W.B. Schmidke, N. Schmitz, F.-J. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, P.V. Shanmuganathan, T. Shao, M. Sharma, N. Sharma, R. Sharma, S.R. Sharma, A.I. Sheikh, D. Shen, D.Y. Shen, K. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M.J. Skoby, N. Smirnov, Y. Söhngen, Y. Song, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, B. Stringfellow, Y. Su, A.A.P. Suaide, M. Sumbera, C. Sun, X. Sun, Y. Sun, B. Surrow, Z.W. Sweger, P. Szymanski, A. Tamis, A.H. Tang, Z. Tang, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, C.Y. Tsang, Z. Tu, J. Tyler, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, J. Wang, X. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, G.D. Westfall, D. Wielanek, H. Wieman, G. Wilks, S.W. Wissink, R. Witt, J. Wu, X. Wu, Y. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, W. Zhang, X. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: Density fluctuations near the QCD critical point can be probed via an intermittency analysis in relativistic heavy-ion collisions. We report the first measurement of intermittency in Au+Au collisions at sNN = 7.7-200 GeV measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The scaled factorial moments of identified charged hadrons are analyzed at mid-rapidity and within the transverse momentum phase space. We observe a power-law behavior of scaled factorial moments in Au+Au collisions and a decrease in the extracted scaling exponent (ν) from peripheral to central collisions. The ν is consistent with a constant for different collisions energies in the mid-central (10-40%) collisions. Moreover, the ν in the 0-5% most central Au+Au collisions exhibits a non-monotonic energy dependence that reaches a minimum around sNN = 27 GeV. The physics implications on the QCD phase structure are discussed.
Published: 2023
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8. Elliptic flow of heavy-flavor decay electrons in Au+Au collisions at sNN = 27 and 54.4 GeV at RHIC

Author: M.I. Abdulhamid, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, D.M. Anderson, E.C. Aschenauer, S. Aslam, J. Atchison, V. Bairathi, W. Baker, J.G. Ball Cap, K. Barish, R. Bellwied, P. Bhagat, A. Bhasin, S. Bhatta, J. Bielcik, J. Bielcikova, J.D. Brandenburg, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, P. Chaloupka, B.K. Chan, Z. Chang, A. Chatterjee, D. Chen, J. Chen, J.H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, G. Dale-Gau, A. Das, M. Daugherity, I.M. Deppner, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, C.J. Feng, Y. Feng, E. Finch, Y. Fisyak, F.A. Flor, C. Fu, C.A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison-Smith, W. He, X.H. He, Y. He, N. Herrmann, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, D. Isenhower, M. Isshiki, W.W. Jacobs, A. Jalotra, C. Jena, A. Jentsch, Y. Ji, J. Jia, C. Jin, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, D. Keane, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L.K. Kosarzewski, L. Kramarik, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, J.H. Lee, Y.H. Leung, N. Lewis, C. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, M.A. Lisa, C. Liu, F. Liu, G. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, O. Lomicky, R.S. Longacre, E.M. Loyd, T. Lu, N.S. Lukow, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, G. McNamara, K. Mi, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, A. Mukherjee, M.I. Nagy, A.S. Nain, J.D. Nam, M. Nasim, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, T. Niida, R. Nishitani, T. Nonaka, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B.S. Page, R. Pak, J. Pan, A. Pandav, A.K. Pandey, T. Pani, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, J. Pluta, B.R. Pokhrel, M. Posik, T. Protzman, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, A. Quintero, C. Racz, S.K. Radhakrishnan, N. Raha, R.L. Ray, R. Reed, H.G. Ritter, C.W. Robertson, M. Robotkova, M.A. Rosales Aguilar, D. Roy, P. Roy Chowdhury, L. Ruan, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, S. Sato, W.B. Schmidke, N. Schmitz, F.-J. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, P.V. Shanmuganathan, T. Shao, M. Sharma, N. Sharma, R. Sharma, S.R. Sharma, A.I. Sheikh, D.Y. Shen, K. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M.J. Skoby, N. Smirnov, Y. Söhngen, Y. Song, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, B. Stringfellow, Y. Su, A.A.P. Suaide, M. Sumbera, C. Sun, X. Sun, Y. Sun, B. Surrow, Z.W. Sweger, P. Szymanski, A. Tamis, A.H. Tang, Z. Tang, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, C.Y. Tsang, Z. Tu, J. Tyler, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, X. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, G.D. Westfall, D. Wielanek, H. Wieman, G. Wilks, S.W. Wissink, R. Witt, J. Wu, X. Wu, Y. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, W. Zhang, X. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Heavy-flavor decay electron, Elliptic flow, Charm quark spatial diffusion coefficient, Physics, QC1-999
Abstract: We report on new measurements of elliptic flow (v2) of electrons from heavy-flavor hadron decays at mid-rapidity (|y|
Published: 2023
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9. Evidence of Mass Ordering of Charm and Bottom Quark Energy Loss in Au+Au Collisions at RHIC

Author: M. S. Abdallah, B. E. Aboona, J. Adam, L. Adamczyk, J. R. Adams, J. K. Adkins, I. Aggarwal, M. M. Aggarwal, Z. Ahammed, D. M. Anderson, E. C. Aschenauer, J. Atchison, X. Bai, V. Bairathi, W. Baker, J. G. Ball Cap, K. Barish, R. Bellwied, P. Bhagat, A. Bhasin, S. Bhatta, J. Bielcik, J. Bielcikova, J. D. Brandenburg, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B. K. Chan, Z. Chang, A. Chatterjee, S. Chattopadhyay, D. Chen, J. Chen, J. H. Chen, X. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H. J. Crawford, M. Csanád, M. Daugherity, I. M. Deppner, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J. L. Drachenberg, E. Duckworth, J. C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, F. M. Fawzi, S. Fazio, C. J. Feng, Y. Feng, E. Finch, Y. Fisyak, A. Francisco, C. Fu, C. A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M. D. Harasty, J. W. Harris, H. Harrison, S. He, W. He, X. H. He, Y. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H. Z. Huang, S. L. Huang, T. Huang, X. Huang, Y. Huang, T. J. Humanic, D. Isenhower, M. Isshiki, W. W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, C. Jin, X. Ju, E. G. Judd, S. Kabana, M. L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H. W. Ke, D. Keane, M. Kelsey, Y. V. Khyzhniak, D. P. Kikoła, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A. G. Knospe, H. S. Ko, L. K. Kosarzewski, L. Kramarik, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, J. H. Kwasizur, R. Lacey, S. Lan, J. M. Landgraf, J. Lauret, A. Lebedev, J. H. Lee, Y. H. Leung, N. Lewis, C. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M. A. Lisa, F. Liu, H. Liu, T. Liu, X. Liu, Y. Liu, T. Ljubicic, W. J. Llope, R. S. Longacre, E. Loyd, T. Lu, N. S. Lukow, X. F. Luo, L. Ma, R. Ma, Y. G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H. S. Matis, J. A. Mazer, G. McNamara, S. Mioduszewski, B. Mohanty, M. M. Mondal, I. Mooney, A. Mukherjee, M. I. Nagy, A. S. Nain, J. D. Nam, Md. Nasim, K. Nayak, D. Neff, J. M. Nelson, D. B. Nemes, M. Nie, T. Niida, R. Nishitani, T. Nonaka, A. S. Nunes, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B. S. Page, R. Pak, J. Pan, A. Pandav, A. K. Pandey, T. Pani, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, J. Pluta, B. R. Pokhrel, J. Porter, M. Posik, T. Protzman, V. Prozorova, N. K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, A. Quintero, C. Racz, S. K. Radhakrishnan, N. Raha, R. L. Ray, R. Reed, H. G. Ritter, M. Robotkova, J. L. Romero, D. Roy, P. Roy Chowdhury, L. Ruan, A. K. Sahoo, N. R. Sahoo, H. Sako, S. Salur, S. Sato, W. B. Schmidke, N. Schmitz, F-J. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, P. V. Shanmuganathan, M. Shao, T. Shao, R. Sharma, A. I. Sheikh, D. Y. Shen, K. Shen, S. S. Shi, Y. Shi, Q. Y. Shou, E. P. Sichtermann, R. Sikora, J. Singh, S. Singha, P. Sinha, M. J. Skoby, N. Smirnov, Y. Söhngen, W. Solyst, Y. Song, B. Srivastava, T. D. S. Stanislaus, D. J. Stewart, B. Stringfellow, A. A. P. Suaide, M. Sumbera, C. Sun, X. M. Sun, X. Sun, Y. Sun, B. Surrow, Z. W. Sweger, P. Szymanski, A. H. Tang, Z. Tang, T. Tarnowsky, J. H. Thomas, A. R. Timmins, D. Tlusty, T. Todoroki, C. A. Tomkiel, S. Trentalange, R. E. Tribble, P. Tribedy, S. K. Tripathy, T. Truhlar, B. A. Trzeciak, O. D. Tsai, C. Y. Tsang, Z. Tu, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S. A. Voloshin, F. Wang, G. Wang, J. S. Wang, P. Wang, X. Wang, Y. Wang, Z. Wang, J. C. Webb, P. C. Weidenkaff, G. D. Westfall, D. Wielanek, H. Wieman, S. W. Wissink, R. Witt, J. Wu, X. Wu, Y. Wu, B. Xi, Z. G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q. H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, Y. Zhang, Z. J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, J. Zhou, Y. Zhou, X. Zhu, M. Zurek, M. Zyzak, and STAR Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Partons traversing the strongly interacting medium produced in heavy-ion collisions are expected to lose energy depending on their color charge and mass. We measure the nuclear modification factors for charm- and bottom-decay electrons, defined as the ratio of yields, divided by the number of binary nucleon–nucleon collisions, in $$\sqrt{s_{\textrm{NN}}}=200$$ s NN = 200 GeV Au+Au collisions to p+p collisions ( $$R_{\textrm{AA}}$$ R AA ), or in central to peripheral Au+Au collisions ( $$R_{\textrm{CP}}$$ R CP ). We find the bottom-decay electron $$R_{\textrm{AA}}$$ R AA and $$R_{\textrm{CP}}$$ R CP to be significantly higher than those of charm-decay electrons. Model calculations including mass-dependent parton energy loss in a strongly coupled medium are consistent with the measured data. These observations provide evidence of mass ordering of charm and bottom quark energy loss when traversing through the strongly coupled medium created in heavy-ion collisions.
Published: 2022
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10. Observation of the Electromagnetic Field Effect via Charge-Dependent Directed Flow in Heavy-Ion Collisions at the Relativistic Heavy Ion Collider

Author: M. I. Abdulhamid, B. E. Aboona, J. Adam, J. R. Adams, G. Agakishiev, I. Aggarwal, M. M. Aggarwal, Z. Ahammed, A. Aitbaev, I. Alekseev, E. Alpatov, A. Aparin, S. Aslam, J. Atchison, G. S. Averichev, V. Bairathi, J. G. Ball Cap, K. Barish, P. Bhagat, A. Bhasin, S. Bhatta, S. R. Bhosale, I. G. Bordyuzhin, J. D. Brandenburg, A. V. Brandin, X. Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, B. K. Chan, Z. Chang, A. Chatterjee, D. Chen, J. Chen, J. H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H. J. Crawford, G. Dale-Gau, A. Das, A. P. Dash, M. Daugherity, T. G. Dedovich, I. M. Deppner, A. A. Derevschikov, A. Dhamija, P. Dixit, X. Dong, J. L. Drachenberg, E. Duckworth, J. C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, O. Eyser, R. Fatemi, S. Fazio, C. J. Feng, Y. Feng, E. Finch, Y. Fisyak, F. A. Flor, C. Fu, T. Gao, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, A. Hamed, Y. Han, M. D. Harasty, J. W. Harris, H. Harrison-Smith, W. He, X. H. He, Y. He, C. Hu, Q. Hu, Y. Hu, H. Huang, H. Z. Huang, S. L. Huang, T. Huang, X. Huang, Y. Huang, T. J. Humanic, D. Isenhower, M. Isshiki, W. W. Jacobs, A. Jalotra, C. Jena, Y. Ji, J. Jia, C. Jin, X. Ju, E. G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, D. Keane, A. Kechechyan, A. Kiselev, A. G. Knospe, H. S. Ko, L. Kochenda, A. A. Korobitsin, A. Yu. Kraeva, P. Kravtsov, L. Kumar, M. C. Labonte, R. Lacey, J. M. Landgraf, A. Lebedev, R. Lednicky, J. H. Lee, Y. H. Leung, N. Lewis, C. Li, H-S. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, T. Lin, Y. Lin, C. Liu, F. Liu, G. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, O. Lomicky, R. S. Longacre, E. M. Loyd, T. Lu, N. S. Lukow, X. F. Luo, V. B. Luong, L. Ma, R. Ma, Y. G. Ma, N. Magdy, D. Mallick, S. Margetis, H. S. Matis, G. McNamara, K. Mi, N. G. Minaev, B. Mohanty, M. M. Mondal, I. Mooney, D. A. Morozov, A. Mudrokh, M. I. Nagy, A. S. Nain, J. D. Nam, M. Nasim, E. Nedorezov, D. Neff, J. M. Nelson, D. B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L. V. Nogach, T. Nonaka, G. Odyniec, A. Ogawa, S. Oh, V. A. Okorokov, K. Okubo, B. S. Page, R. Pak, A. Pandav, Y. Panebratsev, T. Pani, P. Parfenov, A. Paul, C. Perkins, B. R. Pokhrel, M. Posik, A. Povarov, T. Protzman, N. K. Pruthi, J. Putschke, Z. Qin, H. Qiu, A. Quintero, C. Racz, S. K. Radhakrishnan, A. Rana, R. L. Ray, H. G. Ritter, C. W. Robertson, O. V. Rogachevsky, M. A. Rosales Aguilar, D. Roy, L. Ruan, A. K. Sahoo, N. R. Sahoo, H. Sako, S. Salur, E. Samigullin, S. Sato, B. C. Schaefer, W. B. Schmidke, N. Schmitz, J. Seger, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P. V. Shanmuganathan, T. Shao, M. Sharma, N. Sharma, R. Sharma, S. R. Sharma, A. I. Sheikh, D. Shen, D. Y. Shen, K. Shen, S. S. Shi, Y. Shi, Q. Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M. J. Skoby, Y. Söhngen, Y. Song, B. Srivastava, T. D. S. Stanislaus, D. J. Stewart, M. Strikhanov, B. Stringfellow, Y. Su, C. Sun, X. Sun, Y. Sun, B. Surrow, D. N. Svirida, Z. W. Sweger, A. C. Tamis, A. H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J. H. Thomas, D. Tlusty, T. Todoroki, M. V. Tokarev, S. Trentalange, P. Tribedy, S. K. Tripathy, O. D. Tsai, C. Y. Tsang, Z. Tu, J. Tyler, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, A. N. Vasiliev, V. Verkest, F. Videbæk, S. Vokal, S. A. Voloshin, F. Wang, G. Wang, J. S. Wang, J. Wang, X. Wang, Y. Wang, Z. Wang, J. C. Webb, P. C. Weidenkaff, G. D. Westfall, H. Wieman, G. Wilks, S. W. Wissink, J. Wu, X. Wu, B. Xi, Z. G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q. H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, W. Zhang, X. Zhang, Y. Zhang, Z. J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: The deconfined quark-gluon plasma (QGP) created in relativistic heavy-ion collisions enables the exploration of the fundamental properties of matter under extreme conditions. Noncentral collisions can produce strong magnetic fields on the order of 10^{18} G, which offers a probe into the electrical conductivity of the QGP. In particular, quarks and antiquarks carry opposite charges and receive contrary electromagnetic forces that alter their momenta. This phenomenon can be manifested in the collective motion of final-state particles, specifically in the rapidity-odd directed flow, denoted as v_{1}(y). Here, we present the charge-dependent measurements of dv_{1}/dy near midrapidities for π^{±}, K^{±}, and p(p[over ¯]) in Au+Au and isobar (_{44}^{96}Ru+_{44}^{96}Ru and _{40}^{96}Zr+_{40}^{96}Zr) collisions at sqrt[s_{NN}]=200 GeV, and in Au+Au collisions at 27 GeV, recorded by the STAR detector at the Relativistic Heavy Ion Collider. The combined dependence of the v_{1} signal on collision system, particle species, and collision centrality can be qualitatively and semiquantitatively understood as several effects on constituent quarks. While the results in central events can be explained by the u and d quarks transported from initial-state nuclei, those in peripheral events reveal the impacts of the electromagnetic field on the QGP. Our data put valuable constraints on the electrical conductivity of the QGP in theoretical calculations.
Published: 2024
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11. Search for the chiral magnetic effect in Au+Au collisions at sNN=27 GeV with the STAR forward event plane detectors

Author: B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, D.M. Anderson, E.C. Aschenauer, J. Atchison, V. Bairathi, W. Baker, J.G. Ball Cap, K. Barish, R. Bellwied, P. Bhagat, A. Bhasin, S. Bhatta, J. Bielcik, J. Bielcikova, J.D. Brandenburg, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, P. Chaloupka, B.K. Chan, Z. Chang, D. Chen, J. Chen, J.H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, G. Dale-Gau, A. Das, M. Daugherity, I.M. Deppner, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, C.J. Feng, Y. Feng, E. Finch, Y. Fisyak, F.A. Flor, C. Fu, C.A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison, W. He, X.H. He, Y. He, N. Herrmann, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, D. Isenhower, M. Isshiki, W.W. Jacobs, A. Jalotra, C. Jena, A. Jentsch, Y. Ji, J. Jia, C. Jin, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L.K. Kosarzewski, L. Kramarik, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, J.H. Lee, Y.H. Leung, N. Lewis, C. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, M.A. Lisa, C. Liu, F. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, O. Lomicky, R.S. Longacre, E. Loyd, T. Lu, N.S. Lukow, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, G. McNamara, K. Mi, S. Mioduszewski, B. Mohanty, I. Mooney, A. Mukherjee, M.I. Nagy, A.S. Nain, J.D. Nam, Md. Nasim, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, T. Niida, R. Nishitani, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B.S. Page, R. Pak, J. Pan, A. Pandav, A.K. Pandey, T. Pani, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, J. Pluta, B.R. Pokhrel, M. Posik, T. Protzman, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, A. Quintero, C. Racz, S.K. Radhakrishnan, N. Raha, R.L. Ray, R. Reed, H.G. Ritter, C.W. Robertson, M. Robotkova, M.A. Rosales Aguilar, D. Roy, P. Roy Chowdhury, L. Ruan, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, S. Sato, W.B. Schmidke, N. Schmitz, F.-J. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, P.V. Shanmuganathan, M. Shao, T. Shao, M. Sharma, N. Sharma, R. Sharma, S.R. Sharma, A.I. Sheikh, D.Y. Shen, K. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M.J. Skoby, N. Smirnov, Y. Söhngen, Y. Song, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, B. Stringfellow, Y. Su, A.A.P. Suaide, M. Sumbera, C. Sun, X. Sun, Y. Sun, B. Surrow, Z.W. Sweger, P. Szymanski, A. Tamis, A.H. Tang, Z. Tang, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, C.Y. Tsang, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, X. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, G.D. Westfall, D. Wielanek, H. Wieman, G. Wilks, S.W. Wissink, R. Witt, J. Wu, X. Wu, Y. Wu, B. Xi, Z.G. Xiao, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, X. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Chiral magnetic effect, Heavy-ion collisions, Beam energy scan, Physics, QC1-999
Abstract: A decisive experimental test of the Chiral Magnetic Effect (CME) is considered one of the major scientific goals at the Relativistic Heavy-Ion Collider (RHIC) towards understanding the nontrivial topological fluctuations of the Quantum Chromodynamics vacuum. In heavy-ion collisions, the CME is expected to result in a charge separation phenomenon across the reaction plane, whose strength could be strongly energy dependent. The previous CME searches have been focused on top RHIC energy collisions. In this Letter, we present a low energy search for the CME in Au+Au collisions at sNN=27 GeV. We measure elliptic flow scaled charge-dependent correlators relative to the event planes that are defined at both mid-rapidity |η|
Published: 2023
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12. Beam energy dependence of the linear and mode-coupled flow harmonics in Au+Au collisions

Author: B.E. Aboona, J. Adam, J.R. Adams, G. Agakishiev, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, A. Aitbaev, I. Alekseev, D.M. Anderson, A. Aparin, J. Atchison, G.S. Averichev, V. Bairathi, W. Baker, J.G. Ball Cap, K. Barish, P. Bhagat, A. Bhasin, S. Bhatta, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, J. Ceska, I. Chakaberia, B.K. Chan, Z. Chang, D. Chen, J. Chen, J.H. Chen, Z. Chen, J. Cheng, Y. Cheng, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, G. Dale-Gau, A. Das, M. Daugherity, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, C.J. Feng, Y. Feng, E. Finch, Y. Fisyak, F.A. Flor, C. Fu, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, A. Hamed, Y. Han, M.D. Harasty, J.W. Harris, H. Harrison, W. He, X.H. He, Y. He, C. Hu, Q. Hu, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, D. Isenhower, M. Isshiki, W.W. Jacobs, A. Jalotra, C. Jena, Y. Ji, J. Jia, C. Jin, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, B. Kimelman, D. Kincses, A. Kiselev, A.G. Knospe, H.S. Ko, L. Kochenda, A.A. Korobitsin, P. Kravtsov, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, R. Lacey, J.M. Landgraf, A. Lebedev, R. Lednicky, J.H. Lee, Y.H. Leung, N. Lewis, C. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, T. Lin, C. Liu, F. Liu, H. Liu, L. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, O. Lomicky, R.S. Longacre, E. Loyd, T. Lu, N.S. Lukow, X.F. Luo, V.B. Luong, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, S. Margetis, H.S. Matis, J.A. Mazer, G. McNamara, K. Mi, N.G. Minaev, B. Mohanty, I. Mooney, D.A. Morozov, A. Mudrokh, A. Mukherjee, M.I. Nagy, A.S. Nain, J.D. Nam, Md. Nasim, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, R. Nishitani, L.V. Nogach, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V.A. Okorokov, K. Okubo, B.S. Page, R. Pak, J. Pan, A. Pandav, A.K. Pandey, Y. Panebratsev, T. Pani, P. Parfenov, A. Paul, C. Perkins, B.R. Pokhrel, M. Posik, T. Protzman, N.K. Pruthi, J. Putschke, Z. Qin, H. Qiu, A. Quintero, C. Racz, S.K. Radhakrishnan, N. Raha, R.L. Ray, H.G. Ritter, C.W. Robertson, O.V. Rogachevsky, M.A. Rosales Aguilar, D. Roy, L. Ruan, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, E. Samigullin, S. Sato, W.B. Schmidke, N. Schmitz, J. Seger, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, T. Shao, M. Sharma, N. Sharma, R. Sharma, S.R. Sharma, A.I. Sheikh, D.Y. Shen, K. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, F. Si, J. Singh, S. Singha, P. Sinha, M.J. Skoby, Y. Söhngen, Y. Song, B. Srivastava, T.D.S. Stanislaus, D.J. Stewart, M. Strikhanov, B. Stringfellow, Y. Su, C. Sun, X. Sun, Y. Sun, B. Surrow, D.N. Svirida, Z.W. Sweger, A. Tamis, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, D. Tlusty, T. Todoroki, M.V. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, O.D. Tsai, C.Y. Tsang, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, A.N. Vasiliev, V. Verkest, F. Videbæk, S. Vokal, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, X. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, G.D. Westfall, H. Wieman, G. Wilks, S.W. Wissink, J. Wu, X. Wu, Y. Wu, B. Xi, Z.G. Xiao, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, G. Yan, Z. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, X. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, J. Zhou, S. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Collectivity, Correlation, Shear viscosity, Physics, QC1-999
Abstract: The linear and mode-coupled contributions to higher-order anisotropic flow are presented for Au+Au collisions at sNN = 27, 39, 54.4, and 200 GeV and compared to similar measurements for Pb+Pb collisions at the Large Hadron Collider (LHC). The coefficients and the flow harmonics' correlations, which characterize the linear and mode-coupled response to the lower-order anisotropies, indicate a beam energy dependence consistent with an influence from the specific shear viscosity (η/s). In contrast, the dimensionless coefficients, mode-coupled response coefficients, and normalized symmetric cumulants are approximately beam-energy independent, consistent with a significant role from initial-state effects. These measurements could provide unique supplemental constraints to (i) distinguish between different initial-state models and (ii) delineate the temperature (T) and baryon chemical potential (μB) dependence of the specific shear viscosity ηs(T,μB).
Published: 2023
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13. Measurement of HΛ4 and HeΛ4 binding energy in Au+Au collisions at sNN = 3 GeV

Author: M.S. Abdallah, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, D.M. Anderson, E.C. Aschenauer, M.U. Ashraf, J. Atchison, V. Bairathi, W. Baker, J.G. Ball Cap, K. Barish, A. Behera, R. Bellwied, P. Bhagat, A. Bhasin, J. Bielcik, J. Bielcikova, J.D. Brandenburg, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, Z. Chang, A. Chatterjee, S. Chattopadhyay, D. Chen, J. Chen, J.H. Chen, X. Chen, Z. Chen, J. Cheng, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, M. Daugherity, I.M. Deppner, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, F.M. Fawzi, S. Fazio, C.J. Feng, Y. Feng, E. Finch, Y. Fisyak, A. Francisco, C. Fu, C.A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison, S. He, W. He, X.H. He, Y. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, D. Isenhower, M. Isshiki, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, C. Jin, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L.K. Kosarzewski, L. Kramarik, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, S. Lan, J.M. Landgraf, J. Lauret, A. Lebedev, J.H. Lee, Y.H. Leung, N. Lewis, C. Li, W. Li, X. Li, Y. Li, Z. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, E. Loyd, T. Lu, N.S. Lukow, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, A. Mukherjee, M. Nagy, A.S. Nain, J.D. Nam, Md. Nasim, K. Nayak, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, T. Niida, R. Nishitani, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, K. Okubo, B.S. Page, R. Pak, J. Pan, A. Pandav, A.K. Pandey, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, L.S. Pinsky, J. Pluta, B.R. Pokhrel, J. Porter, M. Posik, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, Z. Qin, H. Qiu, A. Quintero, C. Racz, S.K. Radhakrishnan, N. Raha, R.L. Ray, R. Reed, H.G. Ritter, M. Robotkova, J.L. Romero, D. Roy, P. Roy Chowdhury, L. Ruan, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, S. Sato, W.B. Schmidke, N. Schmitz, B.R. Schweid, F-J. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, P.V. Shanmuganathan, M. Shao, T. Shao, R. Sharma, A.I. Sheikh, D.Y. Shen, K. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, J. Singh, S. Singha, P. Sinha, M.J. Skoby, N. Smirnov, Y. Söhngen, W. Solyst, Y. Song, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, B. Stringfellow, A.A.P. Suaide, M. Sumbera, X.M. Sun, X. Sun, Y. Sun, B. Surrow, Z.W. Sweger, P. Szymanski, A.H. Tang, Z. Tang, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, C.Y. Tsang, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, I. Vassiliev, V. Verkest, F. Videbæk, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, P. Wang, X. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, G.D. Westfall, D. Wielanek, H. Wieman, S.W. Wissink, R. Witt, J. Wu, Y. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, G. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, J. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: Measurements of mass and Λ binding energy of Λ4H and Λ4He in Au+Au collisions at sNN=3 GeV are presented, with an aim to address the charge symmetry breaking (CSB) problem in hypernuclei systems with atomic number A = 4. The Λ binding energies are measured to be 2.22±0.06(stat.)±0.14(syst.) MeV and 2.38±0.13(stat.)±0.12(syst.) MeV for Λ4H and Λ4He, respectively. The measured Λ binding-energy difference is 0.16±0.14(stat.)±0.10(syst.) MeV for ground states. Combined with the γ-ray transition energies, the binding-energy difference for excited states is −0.16±0.14(stat.)±0.10(syst.) MeV, which is negative and comparable to the value of the ground states within uncertainties. These new measurements on the Λ binding-energy difference in A = 4 hypernuclei systems are consistent with the theoretical calculations that result in ΔBΛ4(1exc+)≈−ΔBΛ4(0g.s.+)
Published: 2022
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14. Probing strangeness canonical ensemble with K−, ϕ(1020) and Ξ− production in Au+Au collisions at sNN=3 GeV

Author: M.S. Abdallah, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, I. Alekseev, D.M. Anderson, A. Aparin, E.C. Aschenauer, M.U. Ashraf, F.G. Atetalla, A. Attri, G.S. Averichev, V. Bairathi, W. Baker, J.G. Ball Cap, K. Barish, A. Behera, R. Bellwied, P. Bhagat, A. Bhasin, J. Bielcik, J. Bielcikova, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, I. Bunzarov, J. Butterworth, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, F.-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, D. Chen, J. Chen, J.H. Chen, X. Chen, Z. Chen, J. Cheng, M. Chevalier, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, M. Daugherity, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, N. Elsey, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, F.M. Fawzi, S. Fazio, P. Federic, J. Fedorisin, C.J. Feng, Y. Feng, P. Filip, E. Finch, Y. Fisyak, A. Francisco, C. Fu, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison, S. He, W. He, X.H. He, Y. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, G. Igo, D. Isenhower, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, C. Kim, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L. Kochenda, L.K. Kosarzewski, L. Kramarik, P. Kravtsov, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, S. Lan, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y.H. Leung, C. Li, W. Li, X. Li, Y. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, E. Loyd, N.S. Lukow, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, D.A. Morozov, A. Mukherjee, M. Nagy, J.D. Nam, Md. Nasim, K. Nayak, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, R. Nishitani, L.V. Nogach, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V.A. Okorokov, B.S. Page, R. Pak, J. Pan, A. Pandav, A.K. Pandey, Y. Panebratsev, P. Parfenov, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, L. Pinsky, R.L. Pintér, J. Pluta, B.R. Pokhrel, G. Ponimatkin, J. Porter, M. Posik, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, C. Racz, S.K. Radhakrishnan, N. Raha, R.L. Ray, R. Reed, H.G. Ritter, M. Robotkova, O.V. Rogachevskiy, J.L. Romero, D. Roy, L. Ruan, J. Rusnak, N.R. Sahoo, H. Sako, S. Salur, J. Sandweiss, S. Sato, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, T. Shao, A.I. Sheikh, D. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, J. Singh, S. Singha, M.J. Skoby, N. Smirnov, Y. Söhngen, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, B. Summa, X.M. Sun, X. Sun, Y. Sun, B. Surrow, D.N. Svirida, Z.W. Sweger, P. Szymanski, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, V. Verkest, F. Videbæk, S. Vokal, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, P. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, J. Wu, Y. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, J. Zhao, C. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: We report the first multi-differential measurements of strange hadrons of K−, ϕ and Ξ− yields as well as the ratios of ϕ/K− and ϕ/Ξ− in Au+Au collisions at sNN=3 GeV with the STAR experiment fixed target configuration at RHIC. The ϕ mesons and Ξ− hyperons are measured through hadronic decay channels, ϕ→K+K− and Ξ−→Λπ−. Collision centrality and rapidity dependence of the transverse momentum spectra for these strange hadrons are presented. The 4π yields and ratios are compared to thermal model and hadronic transport model predictions. At this collision energy, thermal model with grand canonical ensemble (GCE) under-predicts the ϕ/K− and ϕ/Ξ− ratios while the result of canonical ensemble (CE) calculations reproduce ϕ/K−, with the correlation length rc∼2.7 fm, and ϕ/Ξ−, rc∼4.2 fm, for the 0-10% central collisions. Hadronic transport models including high mass resonance decays could also describe the ratios. While thermal calculations with GCE work well for strangeness production in high energy collisions, the change to CE at 3 GeV implies a rather different medium property at high baryon density.
Published: 2022
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15. Light nuclei collectivity from sNN=3 GeV Au+Au collisions at RHIC

Author: M.S. Abdallah, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, A. Aitbaev, I. Alekseev, D.M. Anderson, A. Aparin, E.C. Aschenauer, M.U. Ashraf, F.G. Atetalla, G.S. Averichev, V. Bairathi, W. Baker, J.G. Ball Cap, K. Barish, A. Behera, R. Bellwied, P. Bhagat, A. Bhasin, J. Bielcik, J. Bielcikova, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, F.-H. Chang, Z. Chang, A. Chatterjee, S. Chattopadhyay, D. Chen, J. Chen, J.H. Chen, X. Chen, Z. Chen, J. Cheng, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, M. Daugherity, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, F.M. Fawzi, S. Fazio, C.J. Feng, Y. Feng, E. Finch, Y. Fisyak, A. Francisco, C. Fu, C.A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison, S. He, W. He, X.H. He, Y. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, C. Hu, Q. Hu, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, D. Isenhower, M. Isshiki, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L. Kochenda, A. Korobitsin, L.K. Kosarzewski, L. Kramarik, P. Kravtsov, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, S. Lan, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y.H. Leung, N. Lewis, C. Li, W. Li, X. Li, Y. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, E. Loyd, T. Lu, N.S. Lukow, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, S.L. Manukhov, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, D.A. Morozov, A. Mukherjee, M. Nagy, J.D. Nam, Md. Nasim, K. Nayak, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, R. Nishitani, L.V. Nogach, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V.A. Okorokov, K. Okubo, B.S. Page, R. Pak, J. Pan, A. Pandav, A.K. Pandey, Y. Panebratsev, P. Parfenov, A. Paul, B. Pawlik, D. Pawlowska, C. Perkins, L.S. Pinsky, J. Pluta, B.R. Pokhrel, J. Porter, M. Posik, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, C. Racz, S.K. Radhakrishnan, N. Raha, R.L. Ray, R. Reed, H.G. Ritter, M. Robotkova, O.V. Rogachevskiy, J.L. Romero, D. Roy, L. Ruan, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, E. Samigullin, J. Sandweiss, S. Sato, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, T. Shao, R. Sharma, A.I. Sheikh, D.Y. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, J. Singh, S. Singha, P. Sinha, M.J. Skoby, N. Smirnov, Y. Söhngen, W. Solyst, Y. Song, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, B. Summa, X.M. Sun, X. Sun, Y. Sun, B. Surrow, D.N. Svirida, Z.W. Sweger, P. Szymanski, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, V. Verkest, F. Videbæk, S. Vokal, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, P. Wang, X. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, J. Wu, Y. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, G. Yan, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, F. Zhao, J. Zhao, M. Zhao, C. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: In high-energy heavy-ion collisions, partonic collectivity is evidenced by the constituent quark number scaling of elliptic flow anisotropy for identified hadrons. A breaking of this scaling and dominance of baryonic interactions is found for identified hadron collective flow measurements in sNN = 3 GeV Au+Au collisions. In this paper, we report measurements of the first- and second-order azimuthal anisotropic parameters, v1 and v2, of light nuclei (d, t, 3He, 4He) produced in sNN = 3 GeV Au+Au collisions at the STAR experiment. An atomic mass number scaling is found in the measured v1 slopes of light nuclei at mid-rapidity. For the measured v2 magnitude, a strong rapidity dependence is observed. Unlike v2 at higher collision energies, the v2 values at mid-rapidity for all light nuclei are negative and no scaling is observed with the atomic mass number. Calculations by the Jet AA Microscopic Transport Model (JAM), with baryonic mean-field plus nucleon coalescence, are in good agreement with our observations, implying baryonic interactions dominate the collective dynamics in 3 GeV Au+Au collisions at RHIC.
Published: 2022
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16. Disappearance of partonic collectivity in sNN=3GeV Au+Au collisions at RHIC

Author: M.S. Abdallah, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, I. Alekseev, D.M. Anderson, A. Aparin, E.C. Aschenauer, M.U. Ashraf, F.G. Atetalla, A. Attri, G.S. Averichev, V. Bairathi, W. Baker, J.G. Ball Cap, K. Barish, A. Behera, R. Bellwied, P. Bhagat, A. Bhasin, J. Bielcik, J. Bielcikova, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, I. Bunzarov, J. Butterworth, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, F.-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, D. Chen, J. Chen, J.H. Chen, X. Chen, Z. Chen, J. Cheng, M. Chevalier, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, M. Daugherity, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, N. Elsey, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, F.M. Fawzi, S. Fazio, P. Federic, J. Fedorisin, C.J. Feng, Y. Feng, P. Filip, E. Finch, Y. Fisyak, A. Francisco, C. Fu, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison, S. He, W. He, X.H. He, Y. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, G. Igo, D. Isenhower, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, C. Kim, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L. Kochenda, L.K. Kosarzewski, L. Kramarik, P. Kravtsov, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, S. Lan, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y.H. Leung, C. Li, W. Li, X. Li, Y. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, E. Loyd, N.S. Lukow, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, D.A. Morozov, A. Mukherjee, M. Nagy, J.D. Nam, Md. Nasim, K. Nayak, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, R. Nishitani, L.V. Nogach, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V.A. Okorokov, B.S. Page, R. Pak, J. Pan, A. Pandav, A.K. Pandey, Y. Panebratsev, P. Parfenov, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, L. Pinsky, R.L. Pintér, J. Pluta, B.R. Pokhrel, G. Ponimatkin, J. Porter, M. Posik, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, C. Racz, S.K. Radhakrishnan, N. Raha, R.L. Ray, R. Reed, H.G. Ritter, M. Robotkova, O.V. Rogachevskiy, J.L. Romero, D. Roy, L. Ruan, J. Rusnak, N.R. Sahoo, H. Sako, S. Salur, J. Sandweiss, S. Sato, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, T. Shao, A.I. Sheikh, D. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, J. Singh, S. Singha, M.J. Skoby, N. Smirnov, Y. Söhngen, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, B. Summa, X.M. Sun, X. Sun, Y. Sun, B. Surrow, D.N. Svirida, Z.W. Sweger, P. Szymanski, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, V. Verkest, F. Videbæk, S. Vokal, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, P. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, J. Wu, Y. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, J. Zhao, C. Zhou, Y. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: We report on the measurements of directed flow v1 and elliptic flow v2 for hadrons (π±, K±, KS0, p, ϕ, Λ and Ξ−) from Au+Au collisions at sNN=3GeV and v2 for (π±, K±, p and p‾) at 27 and 54.4GeV with the STAR experiment. While at the two higher energy midcentral collisions the number-of-constituent-quark (NCQ) scaling holds, at 3GeV the v2 at midrapidity is negative for all hadrons and the NCQ scaling is absent. In addition, the v1 slopes at midrapidity for almost all observed hadrons are found to be positive, implying dominant repulsive baryonic interactions. The features of negative v2 and positive v1 slope at 3GeV can be reproduced with a baryonic mean-field in transport model calculations. These results imply that the medium in such collisions is likely characterized by baryonic interactions.
Published: 2022
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17. Measurement of the central exclusive production of charged particle pairs in proton-proton collisions at s $$ \sqrt{s} $$ = 200 GeV with the STAR detector at RHIC

Author: The STAR collaboration, J. Adam, L. Adamczyk, J. R. Adams, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, D. M. Anderson, A. Aparin, E. C. Aschenauer, M. U. Ashraf, F. G. Atetalla, A. Attri, G. S. Averichev, V. Bairathi, K. Barish, A. Behera, R. Bellwied, A. Bhasin, J. Bielcik, J. Bielcikova, L. C. Bland, I. G. Bordyuzhin, J. D. Brandenburg, A. V. Brandin, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B. K. Chan, F-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, D. Chen, J. H. Chen, X. Chen, Z. Chen, J. Cheng, M. Cherney, M. Chevalier, S. Choudhury, W. Christie, X. Chu, H. J. Crawford, M. Csanád, M. Daugherity, T. G. Dedovich, I. M. Deppner, A. A. Derevschikov, L. Didenko, X. Dong, J. L. Drachenberg, J. C. Dunlop, T. Edmonds, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, J. Fedorisin, C. J. Feng, Y. Feng, P. Filip, E. Finch, Y. Fisyak, A. Francisco, L. Fulek, C. A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, K. Gopal, D. Grosnick, W. Guryn, A. I. Hamad, A. Hamed, S. Harabasz, J. W. Harris, S. He, W. He, X. H. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, Y. Hong, S. Horvat, Y. Hu, H. Z. Huang, S. L. Huang, T. Huang, X. Huang, T. J. Humanic, P. Huo, G. Igo, D. Isenhower, W. W. Jacobs, C. Jena, A. Jentsch, Y. JI, J. Jia, K. Jiang, S. Jowzaee, X. Ju, E. G. Judd, S. Kabana, M. L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H. W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y. V. Khyzhniak, D. P. Kikoła, C. Kim, B. Kimelman, D. Kincses, T. A. Kinghorn, I. Kisel, A. Kiselev, A. Kisiel, M. Kocan, L. Kochenda, L. K. Kosarzewski, L. Kramarik, P. Kravtsov, K. Krueger, N. Kulathunga Mudiyanselage, L. Kumar, R. Kunnawalkam Elayavalli, J. H. Kwasizur, R. Lacey, S. Lan, J. M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J. H. Lee, Y. H. Leung, C. Li, W. Li, X. Li, Y. Li, Y. Liang, R. Licenik, T. Lin, Y. Lin, M. A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W. J. Llope, R. S. Longacre, N. S. Lukow, S. Luo, X. Luo, G. L. Ma, L. Ma, R. Ma, Y. G. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H. S. Matis, J. A. Mazer, N. G. Minaev, S. Mioduszewski, B. Mohanty, M. M. Mondal, I. Mooney, Z. Moravcova, D. A. Morozov, M. Nagy, J. D. Nam, Md. Nasim, K. Nayak, D. Neff, J. M. Nelson, D. B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L. V. Nogach, T. Nonaka, A. S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V. A. Okorokov, B. S. Page, R. Pak, A. Pandav, Y. Panebratsev, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, L. Pinsky, R. L. Pintér, J. Pluta, J. Porter, M. Posik, N. K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S. K. Radhakrishnan, S. Ramachandran, R. L. Ray, R. Reed, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, L. Ruan, J. Rusnak, N. R. Sahoo, H. Sako, S. Salur, J. Sandweiss, S. Sato, W. B. Schmidke, N. Schmitz, B. R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P. V. Shanmuganathan, M. Shao, F. Shen, W. Q. Shen, S. S. Shi, Q. Y. Shou, E. P. Sichtermann, R. Sikora, M. Simko, J. Singh, S. Singha, N. Smirnov, W. Solyst, P. Sorensen, H. M. Spinka, B. Srivastava, T. D. S. Stanislaus, M. Stefaniak, D. J. Stewart, M. Strikhanov, B. Stringfellow, A. A. P. Suaide, M. Sumbera, B. Summa, X. M. Sun, X. Sun, Y. Sun, B. Surrow, D. N. Svirida, P. Szymanski, A. H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J. H. Thomas, A. R. Timmins, D. Tlusty, M. Tokarev, C. A. Tomkiel, S. Trentalange, R. E. Tribble, P. Tribedy, S. K. Tripathy, O. D. Tsai, Z. Tu, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A. N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S. A. Voloshin, F. Wang, G. Wang, J. S. Wang, P. Wang, Y. Wang, Z. Wang, J. C. Webb, P. C. Weidenkaff, L. Wen, G. D. Westfall, H. Wieman, S. W. Wissink, R. Witt, Y. Wu, Z. G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q. H. Xu, Y. F. Xu, Y. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, L. Yi, K. Yip, H. Zbroszczyk, W. Zha, D. Zhang, S. Zhang, X. P. Zhang, Y. Zhang, Z. J. Zhang, Z. Zhang, J. Zhao, C. Zhong, C. Zhou, X. Zhu, Z. Zhu, M. Zurek, and M. Zyzak
Subjects: Diffraction, Forward physics, Hadron-Hadron scattering (experiments), Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract We report on the measurement of the Central Exclusive Production of charged particle pairs h + h − (h = π, K, p) with the STAR detector at RHIC in proton-proton collisions at s $$ \sqrt{s} $$ = 200 GeV. The charged particle pairs produced in the reaction pp → p′ + h + h − + p′ are reconstructed from the tracks in the central detector and identified using the specific energy loss and the time of flight method, while the forward-scattered protons are measured in the Roman Pot system. Exclusivity of the event is guaranteed by requiring the transverse momentum balance of all four final-state particles. Differential cross sections are measured as functions of observables related to the central hadronic final state and to the forward-scattered protons. They are measured in a fiducial region corresponding to the acceptance of the STAR detector and determined by the central particles’ transverse momenta and pseudorapidities as well as by the forward-scattered protons’ momenta. This fiducial region roughly corresponds to the square of the four-momentum transfers at the proton vertices in the range 0.04 GeV2 < −t 1 , −t 2 < 0.2 GeV2, invariant masses of the charged particle pairs up to a few GeV and pseudorapidities of the centrally-produced hadrons in the range |η| < 0.7. The measured cross sections are compared to phenomenological predictions based on the Double Pomeron Exchange (DPE) model. Structures observed in the mass spectra of π + π − and K + K − pairs are consistent with the DPE model, while angular distributions of pions suggest a dominant spin-0 contribution to π + π − production. For π + π − production, the fiducial cross section is extrapolated to the Lorentz-invariant region, which allows decomposition of the invariant mass spectrum into continuum and resonant contributions. The extrapolated cross section is well described by the continuum production and at least three resonances, the f 0(980), f 2(1270) and f 0(1500), with a possible small contribution from the f 0(1370). Fits to the extrapolated differential cross section as a function of t 1 and t 2 enable extraction of the exponential slope parameters in several bins of the invariant mass of π + π − pairs. These parameters are sensitive to the size of the interaction region.
Published: 2020
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18. Measurement of cold nuclear matter effects for inclusive J/ψ in p+Au collisions at sNN=200 GeV

Author: M.S. Abdallah, B.E. Aboona, J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, I. Aggarwal, M.M. Aggarwal, Z. Ahammed, I. Alekseev, D.M. Anderson, A. Aparin, E.C. Aschenauer, M.U. Ashraf, F.G. Atetalla, A. Attri, G.S. Averichev, V. Bairathi, W. Baker, J.G. Ball Cap, K. Barish, A. Behera, R. Bellwied, P. Bhagat, A. Bhasin, J. Bielcik, J. Bielcikova, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, I. Bunzarov, X.Z. Cai, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, F.-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, D. Chen, J. Chen, J.H. Chen, X. Chen, Z. Chen, J. Cheng, M. Chevalier, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, M. Daugherity, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, A. Dhamija, L. Di Carlo, L. Didenko, P. Dixit, X. Dong, J.L. Drachenberg, E. Duckworth, J.C. Dunlop, N. Elsey, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, F.M. Fawzi, S. Fazio, P. Federic, J. Fedorisin, C.J. Feng, Y. Feng, P. Filip, E. Finch, Y. Fisyak, A. Francisco, C. Fu, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, N. Ghimire, A. Gibson, K. Gopal, X. Gou, D. Grosnick, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, Y. Han, S. Harabasz, M.D. Harasty, J.W. Harris, H. Harrison, S. He, W. He, X.H. He, Y. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, Y. Hu, H. Huang, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, Y. Huang, T.J. Humanic, G. Igo, D. Isenhower, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, C. Kim, B. Kimelman, D. Kincses, I. Kisel, A. Kiselev, A.G. Knospe, H.S. Ko, L. Kochenda, L.K. Kosarzewski, L. Kramarik, P. Kravtsov, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, S. Lan, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y.H. Leung, C. Li, W. Li, X. Li, Y. Li, X. Liang, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, E. Loyd, N.S. Lukow, X.F. Luo, L. Ma, R. Ma, Y.G. Ma, N. Magdy, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, D.A. Morozov, A. Mukherjee, M. Nagy, J.D. Nam, Md. Nasim, K. Nayak, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, R. Nishitani, L.V. Nogach, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V.A. Okorokov, B.S. Page, R. Pak, J. Pan, A. Pandav, A.K. Pandey, Y. Panebratsev, P. Parfenov, B. Pawlik, D. Pawlowska, C. Perkins, L. Pinsky, R.L. Pintér, J. Pluta, B.R. Pokhrel, G. Ponimatkin, J. Porter, M. Posik, V. Prozorova, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, C. Racz, S.K. Radhakrishnan, N. Raha, R.L. Ray, R. Reed, H.G. Ritter, M. Robotkova, O.V. Rogachevskiy, J.L. Romero, D. Roy, L. Ruan, J. Rusnak, A.K. Sahoo, N.R. Sahoo, H. Sako, S. Salur, J. Sandweiss, S. Sato, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, T. Shao, A.I. Sheikh, D.Y. Shen, S.S. Shi, Y. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, J. Singh, S. Singha, M.J. Skoby, N. Smirnov, Y. Söhngen, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, B. Summa, X.M. Sun, X. Sun, Y. Sun, B. Surrow, D.N. Svirida, Z.W. Sweger, P. Szymanski, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, T. Truhlar, B.A. Trzeciak, O.D. Tsai, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, V. Verkest, F. Videbæk, S. Vokal, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, P. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, J. Wu, Y. Wu, B. Xi, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, Y. Yu, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, J. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, J. Zhao, C. Zhou, X. Zhu, M. Zurek, and M. Zyzak
Subjects: RHIC, Cold nuclear matter effects, J/ψ suppression, Physics, QC1-999
Abstract: Measurement by the STAR experiment at RHIC of the cold nuclear matter (CNM) effects experienced by inclusive J/ψ at mid-rapidity in 0-100% p+Au collisions at sNN = 200 GeV is presented. Such effects are quantified utilizing the nuclear modification factor, RpAu, obtained by taking a ratio of J/ψ yield in p+Au collisions to that in p+p collisions scaled by the number of binary nucleon-nucleon collisions. The differential J/ψ yield in both p+p and p+Au collisions is measured through the dimuon decay channel, taking advantage of the trigger capability provided by the Muon Telescope Detector in the RHIC 2015 run. Consequently, the J/ψ RpAu is derived within the transverse momentum (pT) range of 0 to 10 GeV/c. A suppression of approximately 30% is observed for pT
Published: 2022
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19. Constraining the initial conditions and temperature dependent viscosity with three-particle correlations in Au+Au collisions

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

Author: J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, N.N. Ajitanand, I. Alekseev, D.M. Anderson, R. Aoyama, A. Aparin, D. Arkhipkin, E.C. Aschenauer, M.U. Ashraf, F. Atetalla, A. Attri, G.S. Averichev, X. Bai, V. Bairathi, K. Barish, A.J. Bassill, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, F.-H. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.C. Dunlop, L.G. Efimov, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, J. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, P. Federicova, J. Fedorisin, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, A. Hirsch, L. Holub, S. Horvat, B. Huang, X. Huang, S.L. Huang, T. Huang, H.Z. Huang, T.J. Humanic, P. Huo, G. Igo, W.W. Jacobs, A. Jentsch, J. Jia, K. Jiang, S. Jowzaee, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, D.P. Kikoła, C. Kim, T.A. Kinghorn, I. Kisel, A. Kisiel, L. Kochenda, L.K. Kosarzewski, A.F. Kraishan, L. Kramarik, L. Krauth, P. Kravtsov, K. Krueger, N. Kulathunga, S. Kumar, L. Kumar, R. Kunnawalkam Elayavalli, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y. Li, W. Li, C. Li, X. Li, Y. Liang, J. Lidrych, T. Lin, A. Lipiec, M.A. Lisa, H. Liu, P. Liu, F. Liu, Y. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, S. Luo, X. Luo, L. Ma, G.L. Ma, R. Ma, Y.G. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, O. Matonoha, D. Mayes, J.A. Mazer, K. Meehan, J.C. Mei, N.G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M.M. Mondal, I. Mooney, D.A. Morozov, Md. Nasim, J.D. Negrete, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, S. Oh, K. Oh, V.A. Okorokov, D. Olvitt, Jr., B.S. Page, R. Pak, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, J. Pluta, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, A. Quintero, S.K. Radhakrishnan, S. Ramachandran, R.L. Ray, R. Reed, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, W.Q. Shen, F. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, S. Siejka, R. Sikora, M. Simko, S. Singha, D. Smirnov, N. Smirnov, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, T. Sugiura, M. Sumbera, B. Summa, X. Sun, Y. Sun, X.M. Sun, B. Surrow, D.N. Svirida, P. Szymanski, Z. Tang, A.H. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, O.D. Tsai, B. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, F. Wang, G. Wang, Y. Wang, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, W. Xie, G. Xie, Z. Xu, J. Xu, Y.F. Xu, N. Xu, Q.H. Xu, Y. Yang, C. Yang, S. Yang, Q. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, J. Zhang, L. Zhang, Y. Zhang, X.P. Zhang, S. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, Z. Zhu, X. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: We present the first measurement of the proton–Ω correlation function in heavy-ion collisions for the central (0–40%) and peripheral (40–80%) Au + Au collisions at sNN=200 GeV by the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). Predictions for the ratio of peripheral collisions to central collisions for the proton–Ω correlation function are sensitive to the presence of a nucleon–Ω bound state. These predictions are based on the proton–Ω interaction extracted from (2+1)-flavor lattice QCD calculations at the physical point. The measured ratio of the proton–Ω correlation function between the peripheral (small system) and central (large system) collisions is less than unity for relative momentum smaller than 40 MeV/c. Comparison of our measured correlation ratio with theoretical calculation slightly favors a proton–Ω bound system with a binding energy of ∼ 27 MeV. Keywords: Correlations, Femtoscopy, NΩ dibaryon
Published: 2019
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21. Measurement of groomed jet substructure observables in p+p collisions at s=200 GeV with STAR

Author: J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, D.M. Anderson, A. Aparin, E.C. Aschenauer, M.U. Ashraf, F.G. Atetalla, A. Attri, G.S. Averichev, V. Bairathi, K. Barish, A. Behera, R. Bellwied, A. Bhasin, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, F.-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, D. Chen, J.H. Chen, X. Chen, Z. Chen, J. Cheng, M. Cherney, M. Chevalier, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, M. Daugherity, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, L. Didenko, X. Dong, J.L. Drachenberg, J.C. Dunlop, T. Edmonds, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, J. Fedorisin, C.J. Feng, Y. Feng, P. Filip, E. Finch, Y. Fisyak, A. Francisco, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, K. Gopal, D. Grosnick, W. Guryn, A.I. Hamad, A. Hamed, S. Harabasz, J.W. Harris, S. He, W. He, X.H. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, Y. Hong, S. Horvat, Y. Hu, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, T.J. Humanic, P. Huo, G. Igo, D. Isenhower, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, S. Jowzaee, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, C. Kim, B. Kimelman, D. Kincses, T.A. Kinghorn, I. Kisel, A. Kiselev, M. Kocan, L. Kochenda, L.K. Kosarzewski, L. Kramarik, P. Kravtsov, K. Krueger, N. Kulathunga Mudiyanselage, L. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, S. Lan, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y.H. Leung, C. Li, W. Li, X. Li, Y. Li, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, N.S. Lukow, S. Luo, X. Luo, G.L. Ma, L. Ma, R. Ma, Y.G. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, Z. Moravcova, D.A. Morozov, M. Nagy, J.D. Nam, Md. Nasim, K. Nayak, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V.A. Okorokov, B.S. Page, R. Pak, A. Pandav, Y. Panebratsev, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, L. Pinsky, R.L. Pintér, J. Pluta, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S.K. Radhakrishnan, S. Ramachandran, R.L. Ray, R. Reed, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, L. Ruan, J. Rusnak, N.R. Sahoo, H. Sako, S. Salur, J. Sandweiss, S. Sato, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, F. Shen, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, J. Singh, S. Singha, N. Smirnov, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, B. Summa, X.M. Sun, X. Sun, Y. Sun, B. Surrow, D.N. Svirida, P. Szymanski, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, O.D. Tsai, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, P. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y.F. Xu, Y. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, L. Yi, K. Yip, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, J. Zhao, C. Zhong, C. Zhou, X. Zhu, Z. Zhu, M. Zurek, and M. Zyzak
Subjects: Jet substructure, SoftDrop, Splitting function, Groomed jet radius, Physics, QC1-999
Abstract: In this letter, measurements of the shared momentum fraction (zg) and the groomed jet radius (Rg), as defined in the SoftDrop algorithm, are reported in p+p collisions at s=200 GeV collected by the STAR experiment. These substructure observables are differentially measured for jets of varying resolution parameters from R=0.2−0.6 in the transverse momentum range 15
Published: 2020
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22. Investigation of the linear and mode-coupled flow harmonics in Au+Au collisions at sNN = 200 GeV

Author: J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, D.M. Anderson, A. Aparin, E.C. Aschenauer, M.U. Ashraf, F.G. Atetalla, A. Attri, G.S. Averichev, V. Bairathi, K. Barish, A. Behera, R. Bellwied, A. Bhasin, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, F.-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, D. Chen, J.H. Chen, X. Chen, Z. Chen, J. Cheng, M. Cherney, M. Chevalier, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, M. Daugherity, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, L. Didenko, X. Dong, J.L. Drachenberg, J.C. Dunlop, T. Edmonds, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, J. Fedorisin, C.J. Feng, Y. Feng, P. Filip, E. Finch, Y. Fisyak, A. Francisco, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, K. Gopal, D. Grosnick, W. Guryn, A.I. Hamad, A. Hamed, S. Harabasz, J.W. Harris, S. He, W. He, X.H. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, Y. Hong, S. Horvat, Y. Hu, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, T.J. Humanic, P. Huo, G. Igo, D. Isenhower, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, S. Jowzaee, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, C. Kim, B. Kimelman, D. Kincses, T.A. Kinghorn, I. Kisel, A. Kiselev, M. Kocan, L. Kochenda, L.K. Kosarzewski, L. Kramarik, P. Kravtsov, K. Krueger, N. Kulathunga Mudiyanselage, L. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, S. Lan, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y.H. Leung, C. Li, W. Li, X. Li, Y. Li, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, N.S. Lukow, S. Luo, X. Luo, G.L. Ma, L. Ma, R. Ma, Y.G. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, N.G. Minaev, S. Mioduszewski, B. Mohanty, M.M. Mondal, I. Mooney, Z. Moravcova, D.A. Morozov, M. Nagy, J.D. Nam, Md. Nasim, K. Nayak, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V.A. Okorokov, B.S. Page, R. Pak, A. Pandav, Y. Panebratsev, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, L. Pinsky, R.L. Pintér, J. Pluta, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S.K. Radhakrishnan, S. Ramachandran, R.L. Ray, R. Reed, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, L. Ruan, J. Rusnak, N.R. Sahoo, H. Sako, S. Salur, J. Sandweiss, S. Sato, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, F. Shen, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, J. Singh, S. Singha, N. Smirnov, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, B. Summa, X.M. Sun, X. Sun, Y. Sun, B. Surrow, D.N. Svirida, P. Szymanski, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, O.D. Tsai, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, P. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y.F. Xu, Y. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, L. Yi, K. Yip, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, J. Zhao, C. Zhong, C. Zhou, X. Zhu, Z. Zhu, M. Zurek, and M. Zyzak
Subjects: Collectivity, Correlation, Shear viscosity, Physics, QC1-999
Abstract: Flow harmonics (vn) of the Fourier expansion for the azimuthal distributions of hadrons are commonly employed to quantify the azimuthal anisotropy of particle production relative to the collision symmetry planes. While lower order Fourier coefficients (v2 and v3) are more directly related to the corresponding eccentricities of the initial state, the higher-order flow harmonics (vn>3) can be induced by a mode-coupled response to the lower-order anisotropies, in addition to a linear response to the same-order anisotropies. These higher-order flow harmonics and their linear and mode-coupled contributions can be used to more precisely constrain the initial conditions and the transport properties of the medium in theoretical models. The multiparticle azimuthal cumulant method is used to measure the linear and mode-coupled contributions in the higher-order anisotropic flow, the mode-coupled response coefficients, and the correlations of the event plane angles for charged particles as functions of centrality and transverse momentum in Au+Au collisions at nucleon-nucleon center-of-mass energy sNN= 200 GeV. The results are compared to similar LHC measurements as well as to several viscous hydrodynamic calculations with varying initial conditions.
Published: 2020
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23. Results on total and elastic cross sections in proton–proton collisions at s=200 GeV

Author: J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, I. Alekseev, D.M. Anderson, A. Aparin, E.C. Aschenauer, M.U. Ashraf, F.G. Atetalla, A. Attri, G.S. Averichev, V. Bairathi, K. Barish, A. Behera, R. Bellwied, A. Bhasin, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, S. Bueltmann, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, D. Cebra, I. Chakaberia, P. Chaloupka, B.K. Chan, F-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, D. Chen, J.H. Chen, X. Chen, Z. Chen, J. Cheng, M. Cherney, M. Chevalier, S. Choudhury, W. Christie, X. Chu, H.J. Crawford, M. Csanád, M. Daugherity, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, L. Didenko, X. Dong, J.L. Drachenberg, J.C. Dunlop, T. Edmonds, N. Elsey, J. Engelage, G. Eppley, S. Esumi, O. Evdokimov, A. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, J. Fedorisin, C.J. Feng, Y. Feng, P. Filip, E. Finch, Y. Fisyak, A. Francisco, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, K. Gopal, D. Grosnick, W. Guryn, A.I. Hamad, A. Hamed, S. Harabasz, J.W. Harris, S. He, W. He, X.H. He, S. Heppelmann, N. Herrmann, E. Hoffman, L. Holub, Y. Hong, S. Horvat, Y. Hu, H.Z. Huang, S.L. Huang, T. Huang, X. Huang, T.J. Humanic, P. Huo, G. Igo, D. Isenhower, W.W. Jacobs, C. Jena, A. Jentsch, Y. Ji, J. Jia, K. Jiang, S. Jowzaee, X. Ju, E.G. Judd, S. Kabana, M.L. Kabir, S. Kagamaster, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, M. Kelsey, Y.V. Khyzhniak, D.P. Kikoła, C. Kim, B. Kimelman, D. Kincses, T.A. Kinghorn, I. Kisel, A. Kiselev, M. Kocan, L. Kochenda, L.K. Kosarzewski, L. Kramarik, P. Kravtsov, K. Krueger, N. Kulathunga Mudiyanselage, L. Kumar, S. Kumar, R. Kunnawalkam Elayavalli, J.H. Kwasizur, R. Lacey, S. Lan, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, Y.H. Leung, C. Li, W. Li, X. Li, Y. Li, Y. Liang, R. Licenik, T. Lin, Y. Lin, M.A. Lisa, F. Liu, H. Liu, P. Liu, T. Liu, X. Liu, Y. Liu, Z. Liu, T. Ljubicic, W.J. Llope, R.S. Longacre, N.S. Lukow, S. Luo, X. Luo, G.L. Ma, L. Ma, R. Ma, Y.G. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, J.A. Mazer, N.G. Minaev, S. Mioduszewski, B. Mohanty, I. Mooney, Z. Moravcova, D.A. Morozov, M. Nagy, J.D. Nam, Md. Nasim, K. Nayak, D. Neff, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, A.S. Nunes, G. Odyniec, A. Ogawa, S. Oh, V.A. Okorokov, B.S. Page, R. Pak, A. Pandav, Y. Panebratsev, B. Pawlik, D. Pawlowska, H. Pei, C. Perkins, L. Pinsky, R.L. Pintér, J. Pluta, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, H. Qiu, A. Quintero, S.K. Radhakrishnan, S. Ramachandran, R.L. Ray, R. Reed, H.G. Ritter, O.V. Rogachevskiy, J.L. Romero, L. Ruan, J. Rusnak, N.R. Sahoo, H. Sako, S. Salur, J. Sandweiss, S. Sato, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, A.I. Sheikh, F. Shen, W.Q. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, R. Sikora, M. Simko, J. Singh, S. Singha, N. Smirnov, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, M. Stefaniak, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, M. Sumbera, B. Summa, X.M. Sun, X. Sun, Y. Sun, B. Surrow, D.N. Svirida, P. Szymanski, A.H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, O.D. Tsai, Z. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S.A. Voloshin, F. Wang, G. Wang, J.S. Wang, P. Wang, Y. Wang, Z. Wang, J.C. Webb, P.C. Weidenkaff, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, H. Xu, N. Xu, Q.H. Xu, Y.F. Xu, Y. Xu, Z. Xu, C. Yang, Q. Yang, S. Yang, Y. Yang, Z. Yang, Z. Ye, L. Yi, K. Yip, H. Zbroszczyk, W. Zha, C. Zhang, D. Zhang, S. Zhang, X.P. Zhang, Y. Zhang, Z.J. Zhang, Z. Zhang, J. Zhao, C. Zhong, C. Zhou, X. Zhu, Z. Zhu, M. Zurek, and M. Zyzak
Subjects: Elastic scattering, Diffraction, Proton-proton collisions, Physics, QC1-999
Abstract: We report results on the total and elastic cross sections in proton-proton collisions at s=200 GeV obtained with the Roman Pot setup of the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The elastic differential cross section was measured in the squared four-momentum transfer range 0.045≤−t≤0.135 GeV2. The value of the exponential slope parameter B of the elastic differential cross section dσ/dt∼e−Bt in the measured −t range was found to be B=14.32±0.09(stat.)−0.28+0.13(syst.) GeV−2. The total cross section σtot, obtained from extrapolation of the dσ/dt to the optical point at −t=0, is σtot=54.67±0.21(stat.)−1.38+1.28(syst.) mb. We also present the values of the elastic cross section σel=10.85±0.03(stat.)−0.41+0.49(syst.) mb, the elastic cross section integrated within the STAR t-range σeldet=4.05±0.01(stat.)−0.17+0.18(syst.) mb, and the inelastic cross section σinel=43.82±0.21(stat.)−1.44+1.37(syst.) mb. The results are compared with the world data.
Published: 2020
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24. J/ψ production cross section and its dependence on charged-particle multiplicity in p + p collisions at s=200 GeV

Author: J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, N.N. Ajitanand, I. Alekseev, D.M. Anderson, R. Aoyama, A. Aparin, D. Arkhipkin, E.C. Aschenauer, M.U. Ashraf, F. Atetalla, A. Attri, G.S. Averichev, X. Bai, V. Bairathi, K. Barish, A.J. Bassill, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, F.-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.C. Dunlop, L.G. Efimov, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, J. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, P. Federicova, J. Fedorisin, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, A. Hirsch, L. Holub, S. Horvat, X. Huang, B. Huang, S.L. Huang, H.Z. Huang, T. Huang, T.J. Humanic, P. Huo, G. Igo, W.W. Jacobs, A. Jentsch, J. Jia, K. Jiang, S. Jowzaee, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, D.P. Kikoła, C. Kim, T.A. Kinghorn, I. Kisel, A. Kisiel, L. Kochenda, L.K. Kosarzewski, A.F. Kraishan, L. Kramarik, L. Krauth, P. Kravtsov, K. Krueger, N. Kulathunga, S. Kumar, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, C. Li, W. Li, Y. Li, Y. Liang, J. Lidrych, T. Lin, A. Lipiec, M.A. Lisa, F. Liu, P. Liu, H. Liu, Y. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, S. Luo, G.L. Ma, Y.G. Ma, L. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, O. Matonoha, D. Mayes, J.A. Mazer, K. Meehan, J.C. Mei, N.G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M.M. Mondal, I. Mooney, D.A. Morozov, Md. Nasim, J.D. Negrete, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, S. Oh, V.A. Okorokov, D. Olvitt, Jr., B.S. Page, R. Pak, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, J. Pluta, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, A. Quintero, S.K. Radhakrishnan, S. Ramachandran, R.L. Ray, R. Reed, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, W.Q. Shen, F. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, S. Siejka, R. Sikora, M. Simko, S. Singha, N. Smirnov, D. Smirnov, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, T. Sugiura, M. Sumbera, B. Summa, Y. Sun, X. Sun, X.M. Sun, B. Surrow, D.N. Svirida, P. Szymanski, Z. Tang, A.H. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, O.D. Tsai, B. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, Q.H. Xu, Z. Xu, J. Xu, Y.F. Xu, N. Xu, S. Yang, C. Yang, Q. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, L. Zhang, Y. Zhang, X.P. Zhang, J. Zhang, S. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, Z. Zhu, X. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: We present a measurement of inclusive J/ψ production at mid-rapidity (|y|
Published: 2018
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25. Collision energy dependence of moments of net-kaon multiplicity distributions at RHIC

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

Author: J. Adam, L. Adamczyk, J.R. Adams, J.K. Adkins, G. Agakishiev, M.M. Aggarwal, Z. Ahammed, N.N. Ajitanand, I. Alekseev, D.M. Anderson, R. Aoyama, A. Aparin, D. Arkhipkin, E.C. Aschenauer, M.U. Ashraf, F. Atetalla, A. Attri, G.S. Averichev, X. Bai, V. Bairathi, K. Barish, A.J. Bassill, A. Behera, R. Bellwied, A. Bhasin, A.K. Bhati, J. Bielcik, J. Bielcikova, L.C. Bland, I.G. Bordyuzhin, J.D. Brandenburg, A.V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón de la Barca Sánchez, J.M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, F.-H. Chang, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, J.H. Chen, X. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H.J. Crawford, S. Das, T.G. Dedovich, I.M. Deppner, A.A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J.L. Drachenberg, J.C. Dunlop, L.G. Efimov, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, J. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, P. Federicova, J. Fedorisin, P. Filip, E. Finch, Y. Fisyak, C.E. Flores, L. Fulek, C.A. Gagliardi, T. Galatyuk, F. Geurts, A. Gibson, D. Grosnick, D.S. Gunarathne, Y. Guo, A. Gupta, W. Guryn, A.I. Hamad, A. Hamed, A. Harlenderova, J.W. Harris, L. He, S. Heppelmann, N. Herrmann, A. Hirsch, L. Holub, S. Horvat, X. Huang, B. Huang, S.L. Huang, H.Z. Huang, T. Huang, T.J. Humanic, P. Huo, G. Igo, W.W. Jacobs, A. Jentsch, J. Jia, K. Jiang, S. Jowzaee, E.G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H.W. Ke, D. Keane, A. Kechechyan, D.P. Kikoła, C. Kim, T.A. Kinghorn, I. Kisel, A. Kisiel, L. Kochenda, L.K. Kosarzewski, A.F. Kraishan, L. Kramarik, L. Krauth, P. Kravtsov, K. Krueger, N. Kulathunga, S. Kumar, L. Kumar, J. Kvapil, J.H. Kwasizur, R. Lacey, J.M. Landgraf, J. Lauret, A. Lebedev, R. Lednicky, J.H. Lee, X. Li, C. Li, W. Li, Y. Li, Y. Liang, J. Lidrych, T. Lin, A. Lipiec, M.A. Lisa, F. Liu, P. Liu, H. Liu, Y. Liu, T. Ljubicic, W.J. Llope, M. Lomnitz, R.S. Longacre, X. Luo, S. Luo, G.L. Ma, Y.G. Ma, L. Ma, R. Ma, N. Magdy, R. Majka, D. Mallick, S. Margetis, C. Markert, H.S. Matis, O. Matonoha, D. Mayes, J.A. Mazer, K. Meehan, J.C. Mei, N.G. Minaev, S. Mioduszewski, D. Mishra, B. Mohanty, M.M. Mondal, I. Mooney, D.A. Morozov, Md. Nasim, J.D. Negrete, J.M. Nelson, D.B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L.V. Nogach, T. Nonaka, S.B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, S. Oh, V.A. Okorokov, D. Olvitt, Jr., B.S. Page, R. Pak, Y. Panebratsev, B. Pawlik, H. Pei, C. Perkins, J. Pluta, J. Porter, M. Posik, N.K. Pruthi, M. Przybycien, J. Putschke, A. Quintero, S.K. Radhakrishnan, S. Ramachandran, R.L. Ray, R. Reed, H.G. Ritter, J.B. Roberts, O.V. Rogachevskiy, J.L. Romero, L. Ruan, J. Rusnak, O. Rusnakova, N.R. Sahoo, P.K. Sahu, S. Salur, J. Sandweiss, J. Schambach, A.M. Schmah, W.B. Schmidke, N. Schmitz, B.R. Schweid, F. Seck, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P.V. Shanmuganathan, M. Shao, W.Q. Shen, F. Shen, S.S. Shi, Q.Y. Shou, E.P. Sichtermann, S. Siejka, R. Sikora, M. Simko, S. Singha, N. Smirnov, D. Smirnov, W. Solyst, P. Sorensen, H.M. Spinka, B. Srivastava, T.D.S. Stanislaus, D.J. Stewart, M. Strikhanov, B. Stringfellow, A.A.P. Suaide, T. Sugiura, M. Sumbera, B. Summa, Y. Sun, X. Sun, X.M. Sun, B. Surrow, D.N. Svirida, P. Szymanski, Z. Tang, A.H. Tang, A. Taranenko, T. Tarnowsky, J.H. Thomas, A.R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, C.A. Tomkiel, S. Trentalange, R.E. Tribble, P. Tribedy, S.K. Tripathy, O.D. Tsai, B. Tu, T. Ullrich, D.G. Underwood, I. Upsal, G. Van Buren, J. Vanek, A.N. Vasiliev, I. Vassiliev, F. Videbæk, S. Vokal, S.A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, J.C. Webb, L. Wen, G.D. Westfall, H. Wieman, S.W. Wissink, R. Witt, Y. Wu, Z.G. Xiao, G. Xie, W. Xie, Q.H. Xu, Z. Xu, J. Xu, Y.F. Xu, N. Xu, S. Yang, C. Yang, Q. Yang, Y. Yang, Z. Ye, L. Yi, K. Yip, I.-K. Yoo, N. Yu, H. Zbroszczyk, W. Zha, Z. Zhang, L. Zhang, Y. Zhang, X.P. Zhang, J. Zhang, S. Zhang, J. Zhao, C. Zhong, C. Zhou, L. Zhou, Z. Zhu, X. Zhu, and M. Zyzak
Subjects: Physics, QC1-999
Abstract: New measurements of directed flow for charged hadrons, characterized by the Fourier coefficient v1, are presented for transverse momenta pT, and centrality intervals in Au+Au collisions recorded by the STAR experiment for the center-of-mass energy range sNN=7.7–200 GeV. The measurements underscore the importance of momentum conservation, and the characteristic dependencies on sNN, centrality and pT are consistent with the expectations of geometric fluctuations generated in the initial stages of the collision, acting in concert with a hydrodynamic-like expansion. The centrality and pT dependencies of v1even, as well as an observed similarity between its excitation function and that for v3, could serve as constraints for initial-state models. The v1even excitation function could also provide an important supplement to the flow measurements employed for precision extraction of the temperature dependence of the specific shear viscosity.
Published: 2018
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27. Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p↑ + p collisions at s=500 GeV

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

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

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

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

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

Author: V.M. Abazov, B. Abbott, B.S. Acharya, M. Adams, T. Adams, J.P. Agnew, G.D. Alexeev, G. Alkhazov, A. Alton, A. Askew, S. Atkins, K. Augsten, C. Avila, F. Badaud, L. Bagby, B. Baldin, D.V. Bandurin, S. Banerjee, E. Barberis, P. Baringer, J.F. Bartlett, U. Bassler, V. Bazterra, A. Bean, M. Begalli, L. Bellantoni, S.B. Beri, G. Bernardi, R. Bernhard, I. Bertram, M. Besançon, R. Beuselinck, P.C. Bhat, S. Bhatia, V. Bhatnagar, G. Blazey, S. Blessing, K. Bloom, A. Boehnlein, D. Boline, E.E. Boos, G. Borissov, M. Borysova, A. Brandt, O. Brandt, R. Brock, A. Bross, D. Brown, X.B. Bu, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, C.P. Buszello, E. Camacho-Pérez, B.C.K. Casey, H. Castilla-Valdez, S. Caughron, S. Chakrabarti, K.M. Chan, A. Chandra, E. Chapon, G. Chen, S.W. Cho, S. Choi, B. Choudhary, S. Cihangir, D. Claes, J. Clutter, M. Cooke, W.E. Cooper, M. Corcoran, F. Couderc, M.-C. Cousinou, J. Cuth, D. Cutts, A. Das, G. Davies, S.J. de Jong, E. De La Cruz-Burelo, F. Déliot, R. Demina, D. Denisov, S.P. Denisov, S. Desai, C. Deterre, K. DeVaughan, H.T. Diehl, M. Diesburg, P.F. Ding, A. Dominguez, A. Dubey, L.V. Dudko, A. Duperrin, S. Dutt, M. Eads, D. Edmunds, J. Ellison, V.D. Elvira, Y. Enari, H. Evans, A. Evdokimov, V.N. Evdokimov, A. Fauré, L. Feng, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, M. Fortner, H. Fox, S. Fuess, P.H. Garbincius, A. Garcia-Bellido, J.A. García-González, V. Gavrilov, W. Geng, C.E. Gerber, Y. Gershtein, G. Ginther, O. Gogota, G. Golovanov, P.D. Grannis, S. Greder, H. Greenlee, G. Grenier, Ph. Gris, J.-F. Grivaz, A. Grohsjean, S. Grünendahl, M.W. Grünewald, T. Guillemin, G. Gutierrez, P. Gutierrez, J. Haley, L. Han, K. Harder, A. Harel, J.M. Hauptman, J. Hays, T. Head, T. Hebbeker, D. Hedin, H. Hegab, A.P. Heinson, U. Heintz, C. Hensel, I. Heredia-De La Cruz, K. Herner, G. Hesketh, M.D. Hildreth, R. Hirosky, T. Hoang, J.D. Hobbs, B. Hoeneisen, J. Hogan, M. Hohlfeld, J.L. Holzbauer, I. Howley, Z. Hubacek, V. Hynek, I. Iashvili, Y. Ilchenko, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, A. Jayasinghe, M.S. Jeong, R. Jesik, P. Jiang, K. Johns, E. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, J. Joshi, A.W. Jung, A. Juste, E. Kajfasz, D. Karmanov, I. Katsanos, M. Kaur, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y.N. Kharzheev, I. Kiselevich, J.M. Kohli, A.V. Kozelov, J. Kraus, A. Kumar, A. Kupco, T. Kurča, V.A. Kuzmin, S. Lammers, P. Lebrun, H.S. Lee, S.W. Lee, W.M. Lee, X. Lei, J. Lellouch, D. Li, H. Li, L. Li, Q.Z. Li, J.K. Lim, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, H. Liu, Y. Liu, A. Lobodenko, M. Lokajicek, R. Lopes de Sa, R. Luna-Garcia, A.L. Lyon, A.K.A. Maciel, R. Madar, R. Magaña-Villalba, S. Malik, V.L. Malyshev, J. Mansour, J. Martínez-Ortega, R. McCarthy, C.L. McGivern, M.M. Meijer, A. Melnitchouk, D. Menezes, P.G. Mercadante, M. Merkin, A. Meyer, J. Meyer, F. Miconi, N.K. Mondal, M. Mulhearn, E. Nagy, M. Narain, R. Nayyar, H.A. Neal, J.P. Negret, P. Neustroev, H.T. Nguyen, T. Nunnemann, J. Orduna, N. Osman, J. Osta, A. Pal, N. Parashar, V. Parihar, S.K. Park, R. Partridge, N. Parua, A. Patwa, B. Penning, M. Perfilov, Y. Peters, K. Petridis, G. Petrillo, P. Pétroff, M.-A. Pleier, V.M. Podstavkov, A.V. Popov, M. Prewitt, D. Price, N. Prokopenko, J. Qian, A. Quadt, B. Quinn, P.N. Ratoff, I. Razumov, I. Ripp-Baudot, F. Rizatdinova, M. Rominsky, A. Ross, C. Royon, P. Rubinov, R. Ruchti, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A.S. Santos, G. Savage, M. Savitskyi, L. Sawyer, T. Scanlon, R.D. Schamberger, Y. Scheglov, H. Schellman, M. Schott, C. Schwanenberger, R. Schwienhorst, J. Sekaric, H. Severini, E. Shabalina, V. Shary, S. Shaw, A.A. Shchukin, V. Simak, P. Skubic, P. Slattery, D. Smirnov, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, L. Sonnenschein, K. Soustruznik, J. Stark, D.A. Stoyanova, M. Strauss, L. Suter, P. Svoisky, M. Titov, V.V. Tokmenin, Y.-T. Tsai, D. Tsybychev, B. Tuchming, C. Tully, L. Uvarov, S. Uvarov, S. Uzunyan, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, I.A. Vasilyev, A.Y. Verkheev, L.S. Vertogradov, M. Verzocchi, M. Vesterinen, D. Vilanova, P. Vokac, H.D. Wahl, M.H.L.S. Wang, J. Warchol, G. Watts, M. Wayne, J. Weichert, L. Welty-Rieger, M.R.J. Williams, G.W. Wilson, M. Wobisch, D.R. Wood, T.R. Wyatt, Y. Xie, R. Yamada, S. Yang, T. Yasuda, Y.A. Yatsunenko, W. Ye, Z. Ye, H. Yin, K. Yip, S.W. Youn, J.M. Yu, J. Zennamo, T.G. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, and L. Zivkovic
Subjects: Physics, QC1-999
Abstract: We measure the top quark mass in dilepton final states of tt¯ events in pp¯ collisions at s=1.96 TeV, using data corresponding to an integrated luminosity of 9.7 fb−1 at the Fermilab Tevatron Collider. The analysis features a comprehensive optimization of the neutrino weighting method to minimize the statistical uncertainties. We also improve the calibration of jet energies using the calibration determined in tt¯→lepton+jets events, which reduces the otherwise limiting systematic uncertainty from the jet energy scale. The measured top quark mass is mt=173.32±1.36(stat)±0.85(syst) GeV.
Published: 2016
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34. 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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35. 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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36. 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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37. 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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38. 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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39. 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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40. Measurement of the W+b-jet and W+c-jet differential production cross sections in pp¯ collisions at s=1.96 TeV

Author: V.M. Abazov, B. Abbott, B.S. Acharya, M. Adams, T. Adams, J.P. Agnew, G.D. Alexeev, G. Alkhazov, A. Alton, A. Askew, S. Atkins, K. Augsten, C. Avila, F. Badaud, L. Bagby, B. Baldin, D.V. Bandurin, S. Banerjee, E. Barberis, P. Baringer, J.F. Bartlett, U. Bassler, V. Bazterra, A. Bean, M. Begalli, L. Bellantoni, S.B. Beri, G. Bernardi, R. Bernhard, I. Bertram, M. Besançon, R. Beuselinck, P.C. Bhat, S. Bhatia, V. Bhatnagar, G. Blazey, S. Blessing, K. Bloom, A. Boehnlein, D. Boline, E.E. Boos, G. Borissov, M. Borysova, O. Borysov, A. Brandt, O. Brandt, R. Brock, A. Bross, D. Brown, X.B. Bu, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, C.P. Buszello, E. Camacho-Pérez, B.C.K. Casey, H. Castilla-Valdez, S. Caughron, S. Chakrabarti, K.M. Chan, A. Chandra, E. Chapon, G. Chen, S.W. Cho, S. Choi, B. Choudhary, S. Cihangir, D. Claes, J. Clutter, M. Cooke, W.E. Cooper, M. Corcoran, F. Couderc, M.-C. Cousinou, D. Cutts, A. Das, G. Davies, S.J. de Jong, E. De La Cruz-Burelo, F. Déliot, R. Demina, D. Denisov, S.P. Denisov, S. Desai, C. Deterre, K. DeVaughan, H.T. Diehl, M. Diesburg, P.F. Ding, A. Dominguez, A. Dubey, L.V. Dudko, A. Duperrin, S. Dutt, M. Eads, D. Edmunds, J. Ellison, V.D. Elvira, Y. Enari, H. Evans, V.N. Evdokimov, A. Fauré, L. Feng, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, M. Fortner, H. Fox, S. Fuess, P.H. Garbincius, A. Garcia-Bellido, J.A. García-González, V. Gavrilov, W. Geng, C.E. Gerber, Y. Gershtein, G. Ginther, O. Gogota, G. Golovanov, P.D. Grannis, S. Greder, H. Greenlee, G. Grenier, Ph. Gris, J.-F. Grivaz, A. Grohsjean, S. Grünendahl, M.W. Grünewald, T. Guillemin, G. Gutierrez, P. Gutierrez, J. Haley, L. Han, K. Harder, A. Harel, J.M. Hauptman, J. Hays, T. Head, T. Hebbeker, D. Hedin, H. Hegab, A.P. Heinson, U. Heintz, C. Hensel, I. Heredia-De La Cruz, K. Herner, G. Hesketh, M.D. Hildreth, R. Hirosky, T. Hoang, J.D. Hobbs, B. Hoeneisen, J. Hogan, M. Hohlfeld, J.L. Holzbauer, I. Howley, Z. Hubacek, V. Hynek, I. Iashvili, Y. Ilchenko, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, A. Jayasinghe, M.S. Jeong, R. Jesik, P. Jiang, K. Johns, E. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, J. Joshi, A.W. Jung, A. Juste, E. Kajfasz, D. Karmanov, I. Katsanos, M. Kaur, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y.N. Kharzheev, I. Kiselevich, J.M. Kohli, A.V. Kozelov, J. Kraus, A. Kumar, A. Kupco, T. Kurča, V.A. Kuzmin, S. Lammers, P. Lebrun, H.S. Lee, S.W. Lee, W.M. Lee, X. Lei, J. Lellouch, D. Li, H. Li, L. Li, Q.Z. Li, J.K. Lim, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, H. Liu, Y. Liu, A. Lobodenko, M. Lokajicek, R. Lopes de Sa, R. Luna-Garcia, A.L. Lyon, A.K.A. Maciel, R. Madar, R. Magaña-Villalba, S. Malik, V.L. Malyshev, J. Mansour, J. Martínez-Ortega, R. McCarthy, C.L. McGivern, M.M. Meijer, A. Melnitchouk, D. Menezes, P.G. Mercadante, M. Merkin, A. Meyer, J. Meyer, F. Miconi, N.K. Mondal, M. Mulhearn, E. Nagy, M. Narain, R. Nayyar, H.A. Neal, J.P. Negret, P. Neustroev, H.T. Nguyen, T. Nunnemann, J. Orduna, N. Osman, J. Osta, A. Pal, N. Parashar, V. Parihar, S.K. Park, R. Partridge, N. Parua, A. Patwa, B. Penning, M. Perfilov, Y. Peters, K. Petridis, G. Petrillo, P. Pétroff, M.-A. Pleier, V.M. Podstavkov, A.V. Popov, M. Prewitt, D. Price, N. Prokopenko, J. Qian, A. Quadt, B. Quinn, P.N. Ratoff, I. Razumov, I. Ripp-Baudot, F. Rizatdinova, M. Rominsky, A. Ross, C. Royon, P. Rubinov, R. Ruchti, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A.S. Santos, G. Savage, M. Savitskyi, L. Sawyer, T. Scanlon, R.D. Schamberger, Y. Scheglov, H. Schellman, C. Schwanenberger, R. Schwienhorst, J. Sekaric, H. Severini, E. Shabalina, V. Shary, S. Shaw, A.A. Shchukin, V. Simak, P. Skubic, P. Slattery, D. Smirnov, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, L. Sonnenschein, K. Soustruznik, J. Stark, D.A. Stoyanova, M. Strauss, L. Suter, P. Svoisky, M. Titov, V.V. Tokmenin, Y.-T. Tsai, D. Tsybychev, B. Tuchming, C. Tully, L. Uvarov, S. Uvarov, S. Uzunyan, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, I.A. Vasilyev, A.Y. Verkheev, L.S. Vertogradov, M. Verzocchi, M. Vesterinen, D. Vilanova, P. Vokac, H.D. Wahl, M.H.L.S. Wang, J. Warchol, G. Watts, M. Wayne, J. Weichert, L. Welty-Rieger, M.R.J. Williams, G.W. Wilson, M. Wobisch, D.R. Wood, T.R. Wyatt, Y. Xie, R. Yamada, S. Yang, T. Yasuda, Y.A. Yatsunenko, W. Ye, Z. Ye, H. Yin, K. Yip, S.W. Youn, J.M. Yu, J. Zennamo, T.G. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, and L. Zivkovic
Subjects: Physics, QC1-999
Abstract: We present a measurement of the cross sections for the associated production of a W boson with at least one heavy quark jet, b or c, in proton–antiproton collisions. Data corresponding to an integrated luminosity of 8.7 fb−1 recorded with the D0 detector at the Fermilab Tevatron pp¯ Collider at s=1.96 TeV are used to measure the cross sections differentially as a function of the jet transverse momenta in the range 20 to 150 GeV. These results are compared to calculations of perturbative QCD theory as well as predictions from Monte Carlo generators.
Published: 2015
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41. 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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42. Measurement of the differential γ+2b-jet cross section and the ratio σ(γ+2b-jets)/σ(γ+b-jet) in pp¯ collisions at s=1.96 TeV

Author: V.M. Abazov, B. Abbott, B.S. Acharya, M. Adams, T. Adams, J.P. Agnew, G.D. Alexeev, G. Alkhazov, A. Alton, A. Askew, S. Atkins, K. Augsten, C. Avila, F. Badaud, L. Bagby, B. Baldin, D.V. Bandurin, S. Banerjee, E. Barberis, P. Baringer, J.F. Bartlett, U. Bassler, V. Bazterra, A. Bean, M. Begalli, L. Bellantoni, S.B. Beri, G. Bernardi, R. Bernhard, I. Bertram, M. Besançon, R. Beuselinck, P.C. Bhat, S. Bhatia, V. Bhatnagar, G. Blazey, S. Blessing, K. Bloom, A. Boehnlein, D. Boline, E.E. Boos, G. Borissov, M. Borysova, A. Brandt, O. Brandt, R. Brock, A. Bross, D. Brown, X.B. Bu, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, C.P. Buszello, E. Camacho-Pérez, B.C.K. Casey, H. Castilla-Valdez, S. Caughron, S. Chakrabarti, K.M. Chan, A. Chandra, E. Chapon, G. Chen, S.W. Cho, S. Choi, B. Choudhary, S. Cihangir, D. Claes, J. Clutter, M. Cooke, W.E. Cooper, M. Corcoran, F. Couderc, M.-C. Cousinou, D. Cutts, A. Das, G. Davies, S.J. de Jong, E. De La Cruz-Burelo, F. Déliot, R. Demina, D. Denisov, S.P. Denisov, S. Desai, C. Deterre, K. DeVaughan, H.T. Diehl, M. Diesburg, P.F. Ding, A. Dominguez, A. Dubey, L.V. Dudko, A. Duperrin, S. Dutt, M. Eads, D. Edmunds, J. Ellison, V.D. Elvira, Y. Enari, H. Evans, V.N. Evdokimov, A. Fauré, L. Feng, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H.E. Fisk, M. Fortner, H. Fox, S. Fuess, P.H. Garbincius, A. Garcia-Bellido, J.A. García-González, V. Gavrilov, W. Geng, C.E. Gerber, Y. Gershtein, G. Ginther, O. Gogota, G. Golovanov, P.D. Grannis, S. Greder, H. Greenlee, G. Grenier, Ph. Gris, J.-F. Grivaz, A. Grohsjean, S. Grünendahl, M.W. Grünewald, T. Guillemin, G. Gutierrez, P. Gutierrez, J. Haley, L. Han, K. Harder, A. Harel, J.M. Hauptman, J. Hays, T. Head, T. Hebbeker, D. Hedin, H. Hegab, A.P. Heinson, U. Heintz, C. Hensel, I. Heredia-De La Cruz, K. Herner, G. Hesketh, M.D. Hildreth, R. Hirosky, T. Hoang, J.D. Hobbs, B. Hoeneisen, J. Hogan, M. Hohlfeld, J.L. Holzbauer, I. Howley, Z. Hubacek, V. Hynek, I. Iashvili, Y. Ilchenko, R. Illingworth, A.S. Ito, S. Jabeen, M. Jaffré, A. Jayasinghe, M.S. Jeong, R. Jesik, P. Jiang, K. Johns, E. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, J. Joshi, A.W. Jung, A. Juste, E. Kajfasz, D. Karmanov, I. Katsanos, M. Kaur, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y.N. Kharzheev, I. Kiselevich, J.M. Kohli, A.V. Kozelov, J. Kraus, A. Kumar, A. Kupco, T. Kurča, V.A. Kuzmin, S. Lammers, P. Lebrun, H.S. Lee, S.W. Lee, W.M. Lee, X. Lei, J. Lellouch, D. Li, H. Li, L. Li, Q.Z. Li, J.K. Lim, D. Lincoln, J. Linnemann, V.V. Lipaev, R. Lipton, H. Liu, Y. Liu, A. Lobodenko, M. Lokajicek, R. Lopes de Sa, R. Luna-Garcia, A.L. Lyon, A.K.A. Maciel, R. Madar, R. Magaña-Villalba, S. Malik, V.L. Malyshev, J. Mansour, J. Martínez-Ortega, R. McCarthy, C.L. McGivern, M.M. Meijer, A. Melnitchouk, D. Menezes, P.G. Mercadante, M. Merkin, A. Meyer, J. Meyer, F. Miconi, N.K. Mondal, M. Mulhearn, E. Nagy, M. Narain, R. Nayyar, H.A. Neal, J.P. Negret, P. Neustroev, H.T. Nguyen, T. Nunnemann, J. Orduna, N. Osman, J. Osta, A. Pal, N. Parashar, V. Parihar, S.K. Park, R. Partridge, N. Parua, A. Patwa, B. Penning, M. Perfilov, Y. Peters, K. Petridis, G. Petrillo, P. Pétroff, M.-A. Pleier, V.M. Podstavkov, A.V. Popov, M. Prewitt, D. Price, N. Prokopenko, J. Qian, A. Quadt, B. Quinn, P.N. Ratoff, I. Razumov, I. Ripp-Baudot, F. Rizatdinova, M. Rominsky, A. Ross, C. Royon, P. Rubinov, R. Ruchti, G. Sajot, A. Sánchez-Hernández, M.P. Sanders, A.S. Santos, G. Savage, M. Savitskyi, L. Sawyer, T. Scanlon, R.D. Schamberger, Y. Scheglov, H. Schellman, C. Schwanenberger, R. Schwienhorst, J. Sekaric, H. Severini, E. Shabalina, V. Shary, S. Shaw, A.A. Shchukin, V. Simak, P. Skubic, P. Slattery, D. Smirnov, G.R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, L. Sonnenschein, K. Soustruznik, J. Stark, D.A. Stoyanova, M. Strauss, L. Suter, P. Svoisky, M. Titov, V.V. Tokmenin, Y.-T. Tsai, D. Tsybychev, B. Tuchming, C. Tully, L. Uvarov, S. Uvarov, S. Uzunyan, R. Van Kooten, W.M. van Leeuwen, N. Varelas, E.W. Varnes, I.A. Vasilyev, A.Y. Verkheev, L.S. Vertogradov, M. Verzocchi, M. Vesterinen, D. Vilanova, P. Vokac, H.D. Wahl, M.H.L.S. Wang, J. Warchol, G. Watts, M. Wayne, J. Weichert, L. Welty-Rieger, M.R.J. Williams, G.W. Wilson, M. Wobisch, D.R. Wood, T.R. Wyatt, Y. Xie, R. Yamada, S. Yang, T. Yasuda, Y.A. Yatsunenko, W. Ye, Z. Ye, H. Yin, K. Yip, S.W. Youn, J.M. Yu, J. Zennamo, T.G. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, and L. Zivkovic
Subjects: Physics, QC1-999
Abstract: We present the first measurements of the differential cross section dσ/dpTγ for the production of an isolated photon in association with at least two b-quark jets. The measurements consider photons with rapidities |yγ|15 GeV and |yjet|
Published: 2014
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43. Overcoming horizontal depolarizing resonances with multiple tune jumps

Author: H. Huang, L. A. Ahrens, M. Bai, K. A. Brown, Y. Dutheil, C. Gardner, J. W. Glenn, F. Lin, W. W. MacKay, F. Meot, A. Poblaguev, V. Ranjbar, T. Roser, V. Schoefer, S. Tepikian, N. Tsoupas, K. Yip, A. Zelenski, and K. Zeno
Subjects: Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: In a medium energy proton synchrotron, strong enough partial Siberian snakes can be used to avoid both imperfection and vertical intrinsic depolarizing resonances. However, partial snakes tilt the stable spin direction away from vertical, which generates depolarizing resonances associated with horizontal tune. The relatively weak but numerous horizontal intrinsic resonances are the main source of the residual polarization losses. A pair of horizontal tune jump quads have been used in the Brookhaven Alternating Gradient Synchrotron to overcome these weak resonances. The locations of the two quads have to be chosen such that the disturbance to the beam optics is minimum. The emittance growth has to be mitigated for this method to work. In addition, this technique needs very accurate jump timing. Using two partial Siberian snakes, with vertical tune inside the spin tune gap and 80% polarization at the Alternating Gradient Synchrotron injection, polarized proton beam had reached 1.5×10^{11} proton per bunch with 65% polarization. With the tune jump timing optimized and emittance preserved, more than 70% polarization with 2×10^{11} protons per bunch has been achieved. The polarization transport efficiency is close to 90%.
Published: 2014
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44. Self-assembly and molecular recognition of a luminescent gold rectangle

Author: Ronger Lin, John H. K. Yip, Lip Lin Koh, Kwonk-Yin Wong, and Kam Piu Ho
Subjects: Pyridine -- Optical properties, Gold compounds -- Optical properties, Chemistry
Abstract: The facile synthesis of a kinetically stable nanoscopic luminescent gold rectangle is demonstrated by the self-assembly between the di-gold(I) chip Au2(u-PAnP)(X)2(X=NO3(super -) or OTf(super -)) and 4,4-bipyridine. A detailed study is conducted on the molecular recognitions of the gold rectangles in the solid state and solution.
Published: 2004

45. Taxation and economic growth: the case of Taiwan

Author: Ping Wang and Chong K. Yip
Subjects: Taiwan -- Economic aspects, Taxation -- Economic aspects, Economic development -- Evaluation, Economics, Philosophy and religion, Sociology and social work
Abstract: The effects of various tax policies on economic growth are reexamined on the basis of the recently developed endogenous growth theory. The assertion of Henry George that the structure of taxation is more important than the level of taxation in explaining economic growth is elaborated and verified. Annual data for Taiwan from 1954 to 1986 shows that the aggregate tax rate does not have significant effect on the long-run growth rates of private output, consumption and production factor inputs. This result is due to the positive effect of consumption taxation offsetting the negative effect of factor taxation on economic growth.
Published: 1992

46. Alternative Approaches to Money and Growth.

Author: PING WANG and CHONG K. YIP
Subjects: UTILITY functions, MONETARY policy, MACROECONOMICS, ECONOMIC demand, CONSUMPTION (Economics), ECONOMIC models
Abstract: The article examines three methods of investigating the issue of money and growth: the money-in-the-utility-function (MIUF) approach, the cash-in-advance (CIA) approach, and the transactions-costs (TC) approach. In the MIUF model, the conclusion is generally ambiguous, depending on the cross-partial derivatives of the instantaneous utility function. The authors caution against overstating the results of their qualitative equivalence analysis, and state that, in this case, functional equivalence is impossible to obtain.
Published: 1992
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47. Competency-based education in a clinical course in conservative dentistry

Author: H K Yip, Frederick C S Chu, Philip R H Newsome, R. J. Smales, and Tak W Chow
Subjects: Program evaluation, Self-Evaluation Programs, education, Students, Dental, MEDLINE, Dentistry, Personal Satisfaction, Peer Group, Dental Audit, Dentistry, Operative, ComputingMilieux_COMPUTERSANDEDUCATION, Humans, Learning, Medicine, Education, Dental, General Dentistry, Curriculum, Medical education, Point (typography), business.industry, Dental Records, Clinical course, Common ground, Peer group, Competency-Based Education, Clinical Competence, Educational Measurement, business, Program Evaluation
Abstract: The conceptual difference between a competency-based education and an education based upon a conventional dental curriculum is, perhaps, the starting point for the development of new curricula. The two systems are not, in themselves, exclusive. There is common ground to be found, and the concept of combining instruction with competency-based learning experiences is emerging in recent publications. This paper describes a competency-based approach applied to a clinical course in conservative dentistry. The learning outcomes of the fourth-year dental students in the new course were assessed using methods that included continuous clinical assessments, student presentations and peer-group reflective evaluations, patient management reviews, a clinical progress examination, the range and amount of work completed, and a written examination and viva voce. Different weightings were given to various elements of the assessment. A formal student assessment of the course rated it as being satisfactory.
Published: 2001

48. One-Child Policy in China: A Unified Growth Analysis.

Author: Jianpo Xue and Chong K. Yip
Subjects: ONE-child policy, China, ECONOMIC development, DEMOGRAPHIC change, UNIFIED field theories, BIOLOGICAL evolution
Abstract: This paper examines the effects of China's One Child Policy (OCP) in a stylized unified growth model where demographic change plays a central role. Introducing a population constraint into Galor and Weil (2000) model, our theoretical analysis shows that parents are willing to invest in the education of their children immediately after the OCP intervention. Raising the education level, in turn, boosts rates of technological progress and economic growth over the short run, but the low population mass resulting from the OCP hampers the natural economic evolution. This eventually reduces the education gain and technology growth, retarding economic growth in the steady state. We next calibrate our model to match the key data moments in China. A permanent OCP is found to accelerate economic growth by up to 60% over the short run (40 years, or two generations under our assumed generation length), but depress long-run growth to 6:95% (8:94% under natural evolution). For a temporary OCP lifted after two generations, the economic growth shows an immediate decline of about 27%, followed by a gradual recovery to the steady state under natural evolution. While the OCP reduces welfare, the welfare loss from a temporary OCP is less than that from a permanent OCP. This suggests that the recent decision of the Chinese government to abandon the OCP and move to a two-child policy is likely to improve economic growth and welfare over the long run. [ABSTRACT FROM AUTHOR]
Published: 2017

49. Raised Proinflammatory Cytokine Production Within Cerebrospinal Fluid Precedes Fever Onset in Patients With Neurosurgery-Associated Bacterial Meningitis.

Author: Zhuo-Hao Liu, Po-Hsun Tu, Nan-Yu Chen, Ping K. Yip, Bowes, Amy L., Cheng-Chi Lee, She-Hung Chan, Chua-Chi Kung, Yi-Chou Wang, Alvin, Chieh-Tsai Wu, Shih-Tseng Lee, Liu, Zhuo-Hao, Tu, Po-Hsun, Chen, Nan-Yu, Yip, Ping K, Lee, Cheng-Chi, Chan, She-Hung, Kung, Chua-Chi, Wang, Alvin Yi-Chou, and Wu, Chieh-Tsai
Published: 2015
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50. Balanced-Budget Rules, Elasticity of Substitution, and Macroeconomic (In)Stability.

Author: XUE, JIANPO and K. YIP, CHONG
Subjects: BUDGET, ELASTICITY (Economics), SUBSTITUTION (Economics), MACROECONOMICS, ECONOMIC equilibrium, MATHEMATICAL models of business cycles, DISTRIBUTION (Economic theory)
Abstract: This paper examines the relation between factor substitution and (local) stability of equilibria in a one-sector real business cycle model under balanced-budget rules. We show that under non-unitary elasticity of factor substitution, the Schmitt-Grohé-Uribe indeterminacy result can be altered. Using the two-step normalization procedure, we highlight two opposing effects of factor substitution, namely, the efficiency effect and the distribution effect, on aggregate stability. With endogenous distortionary taxes and gross substitutability between capital and labor, the existing literature overlooks the distribution effect and finds that balanced-budget rules are likely to deliver indeterminacy. However, if capital stock is relatively more abundant, a higher elasticity of substitution generates a source of stability due to the distribution effect. Our calibration shows that the distribution effect is always the dominating force. [ABSTRACT FROM AUTHOR]
Published: 2015
Full Text: View/download PDF

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