Evidence for Nonlinear Gluon Effects in QCD and Their Mass Number Dependence at STAR. uri icon

abstract

  • The STAR Collaboration reports measurements of back-to-back azimuthal correlations of di-^{0}s produced at forward pseudorapidities (2.6<<4.0) in p+p, p+Al, and p+Au collisions at a center-of-mass energy of 200GeV. We observe a clear suppression of the correlated yields of back-to-back ^{0} pairs in p+Al and p+Au collisions compared to the p+p data. The observed suppression of back-to-back pairs as a function of transverse momentum suggests nonlinear gluon dynamics arising at high parton densities. The larger suppression found in p+Au relative to p+Al collisions exhibits a dependence of the saturation scale Q_{s}^{2} on the mass number A. A linear scaling of the suppression with A^{1/3} is observed with a slope of -0.090.01.

published proceedings

  • Phys Rev Lett

altmetric score

  • 76.08

author list (cited authors)

  • Abdallah, M. S., Aboona, B. E., Adam, J., Adamczyk, L., Adams, J. R., Adkins, J. K., ... STAR Collaboration.

citation count

  • 1

complete list of authors

  • Abdallah, MS||Aboona, BE||Adam, J||Adamczyk, L||Adams, JR||Adkins, JK||Agakishiev, G||Aggarwal, I||Aggarwal, MM||Ahammed, Z||Alekseev, I||Anderson, DM||Aparin, A||Aschenauer, EC||Ashraf, MU||Atetalla, FG||Attri, A||Averichev, GS||Bairathi, V||Baker, W||Ball Cap, JG||Barish, K||Behera, A||Bellwied, R||Bhagat, P||Bhasin, A||Bielcik, J||Bielcikova, J||Bordyuzhin, IG||Brandenburg, JD||Brandin, AV||Bunzarov, I||Cai, XZ||Caines, H||Calderón de la Barca Sánchez, M||Cebra, D||Chakaberia, I||Chaloupka, P||Chan, BK||Chang, F-H||Chang, Z||Chankova-Bunzarova, N||Chatterjee, A||Chattopadhyay, S||Chen, D||Chen, J||Chen, JH||Chen, X||Chen, Z||Cheng, J||Chevalier, M||Choudhury, S||Christie, W||Chu, X||Crawford, HJ||Csanád, M||Daugherity, M||Dedovich, TG||Deppner, IM||Derevschikov, AA||Dhamija, A||Di Carlo, L||Didenko, L||Dixit, P||Dong, X||Drachenberg, JL||Duckworth, E||Dunlop, JC||Elsey, N||Engelage, J||Eppley, G||Esumi, S||Evdokimov, O||Ewigleben, A||Eyser, O||Fatemi, R||Fawzi, FM||Fazio, S||Federic, P||Fedorisin, J||Feng, CJ||Feng, Y||Filip, P||Finch, E||Fisyak, Y||Francisco, A||Fu, C||Fulek, L||Gagliardi, CA||Galatyuk, T||Geurts, F||Ghimire, N||Gibson, A||Gopal, K||Gou, X||Grosnick, D||Gupta, A||Guryn, W||Hamad, AI||Hamed, A||Han, Y||Harabasz, S||Harasty, MD||Harris, JW||Harrison, H||He, S||He, W||He, XH||He, Y||Heppelmann, S||Heppelmann, S||Herrmann, N||Hoffman, E||Holub, L||Hu, Y||Huang, H||Huang, HZ||Huang, SL||Huang, T||Huang, X||Huang, Y||Humanic, TJ||Igo, G||Isenhower, D||Jacobs, WW||Jena, C||Jentsch, A||Ji, Y||Jia, J||Jiang, K||Ju, X||Judd, EG||Kabana, S||Kabir, ML||Kagamaster, S||Kalinkin, D||Kang, K||Kapukchyan, D||Kauder, K||Ke, HW||Keane, D||Kechechyan, A||Kelsey, M||Khyzhniak, YV||Kikoła, DP||Kim, C||Kimelman, B||Kincses, D||Kisel, I||Kiselev, A||Knospe, AG||Ko, HS||Kochenda, L||Kosarzewski, LK||Kramarik, L||Kravtsov, P||Kumar, L||Kumar, S||Kunnawalkam Elayavalli, R||Kwasizur, JH||Lacey, R||Lan, S||Landgraf, JM||Lauret, J||Lebedev, A||Lednicky, R||Lee, JH||Leung, YH||Lewis, N||Li, C||Li, C||Li, W||Li, X||Li, Y||Liang, X||Liang, Y||Licenik, R||Lin, T||Lin, Y||Lisa, MA||Liu, F||Liu, H||Liu, H||Liu, P||Liu, T||Liu, X||Liu, Y||Liu, Z||Ljubicic, T||Llope, WJ||Longacre, RS||Loyd, E||Lukow, NS||Luo, XF||Ma, L||Ma, R||Ma, YG||Magdy Abdelwahab Abdelrahman, N||Mallick, D||Margetis, S||Markert, C||Matis, HS||Mazer, JA||Minaev, NG||Mioduszewski, S||Mohanty, B||Mondal, MM||Mooney, I||Morozov, DA||Mukherjee, A||Nagy, M||Nam, JD||Nasim, Md||Nayak, K||Neff, D||Nelson, JM||Nemes, DB||Nie, M||Nigmatkulov, G||Niida, T||Nishitani, R||Nogach, LV||Nonaka, T||Nunes, AS||Odyniec, G||Ogawa, A||Oh, S||Okorokov, VA||Page, BS||Pak, R||Pan, J||Pandav, A||Pandey, AK||Panebratsev, Y||Parfenov, P||Pawlik, B||Pawlowska, D||Perkins, C||Pinsky, L||Pintér, RL||Pluta, J||Pokhrel, BR||Ponimatkin, G||Porter, J||Posik, M||Prozorova, V||Pruthi, NK||Przybycien, M||Putschke, J||Qiu, H||Quintero, A||Racz, C||Radhakrishnan, SK||Raha, N||Ray, RL||Reed, R||Ritter, HG||Robotkova, M||Rogachevskiy, OV||Romero, JL||Roy, D||Ruan, L||Rusnak, J||Sahoo, AK||Sahoo, NR||Sako, H||Salur, S||Sandweiss, J||Sato, S||Schmidke, WB||Schmitz, N||Schweid, BR||Seck, F||Seger, J||Sergeeva, M||Seto, R||Seyboth, P||Shah, N||Shahaliev, E||Shanmuganathan, PV||Shao, M||Shao, T||Sheikh, AI||Shen, DY||Shi, SS||Shi, Y||Shou, QY||Sichtermann, EP||Sikora, R||Simko, M||Singh, J||Singha, S||Skoby, MJ||Smirnov, N||Söhngen, Y||Solyst, W||Sorensen, P||Spinka, HM||Srivastava, B||Stanislaus, TDS||Stefaniak, M||Stewart, DJ||Strikhanov, M||Stringfellow, B||Suaide, AAP||Sumbera, M||Summa, B||Sun, XM||Sun, X||Sun, Y||Sun, Y||Surrow, B||Svirida, DN||Sweger, ZW||Szymanski, P||Tang, AH||Tang, Z||Taranenko, A||Tarnowsky, T||Thomas, JH||Timmins, AR||Tlusty, D||Todoroki, T||Tokarev, M||Tomkiel, CA||Trentalange, S||Tribble, RE||Tribedy, P||Tripathy, SK||Truhlar, T||Trzeciak, BA||Tsai, OD||Tu, Z||Ullrich, T||Underwood, DG||Upsal, I||Van Buren, G||Vanek, J||Vasiliev, AN||Vassiliev, I||Verkest, V||Videbæk, F||Vokal, S||Voloshin, SA||Wang, F||Wang, G||Wang, JS||Wang, P||Wang, X||Wang, Y||Wang, Y||Wang, Z||Webb, JC||Weidenkaff, PC||Wen, L||Westfall, GD||Wieman, H||Wissink, SW||Wu, J||Wu, J||Wu, Y||Xi, B||Xiao, ZG||Xie, G||Xie, W||Xu, H||Xu, N||Xu, QH||Xu, Y||Xu, Z||Xu, Z||Yan, G||Yang, C||Yang, Q||Yang, S||Yang, Y||Ye, Z||Ye, Z||Yi, L||Yip, K||Yu, Y||Zbroszczyk, H||Zha, W||Zhang, C||Zhang, D||Zhang, J||Zhang, S||Zhang, S||Zhang, XP||Zhang, Y||Zhang, Y||Zhang, Y||Zhang, ZJ||Zhang, Z||Zhang, Z||Zhao, J||Zhou, C||Zhou, Y||Zhu, X||Zurek, M||Zyzak, M

publication date

  • August 2022