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Adamczyk L , Adams JR , Adkins JK , Agakishiev G , Aggarwal MM , Ahammed Z , Ajitanand NN , Alekseev I , Anderson DM , Aoyama R , Aparin A , Arkhipkin D , Aschenauer EC , Ashraf MU , Attri A , Averichev GS , Bai X , Bairathi V , Barish K , Behera A , Bellwied R , Bhasin A , Bhati AK , Bhattarai P , Bielcik J , Bielcikova J , Bland LC , Bordyuzhin IG , Bouchet J , Brandenburg JD , Brandin AV , Brown D , Bunzarov I , Butterworth J , Caines H , Calderon de la Barca Sanchez M , Campbell JM , Cebra D , Chakaberia I , Chaloupka P , Chang Z , Chankova-Bunzarova N , Chatterjee A , Chattopadhyay S , Chen JH , Chen X , Chen X , Cheng J , Cherney M , Christie W , Contin G , Crawford HJ , Das S , De Silva LC , Debbe RR , Dedovich TG , Deng J , Derevschikov AA , Didenko L , Dilks C , Dong X , Drachenberg JL , Draper JE , Dunkelberger LE , Dunlop JC , Efimov LG , Elsey N , Engelage J , Eppley G , Esha R , Esumi S , Evdokimov O , Ewigleben J , Eyser O , Fatemi R , Fazio S , Federic P , Federicova P , Fedorisin J , Feng Z , Filip P , Finch E , Fisyak Y , Flores CE , Fujita J , Fulek L , Gagliardi CA , Garand D , Geurts F , Gibson A , Girard M , Grosnick D , Gunarathne DS , Guo Y , Gupta S , Gupta A , Guryn W , Hamad AI , Hamed A , Harlenderova A , Harris JW , He L , Heppelmann S , Heppelmann S , Hirsch A , Hoffmann GW , Horvat S , Huang X , Huang HZ , Huang T , Huang B , Humanic TJ , Huo P , Igo G , Jacobs WW , Jentsch A , Jia J , Jiang K , Jowzaee S , Judd EG , Kabana S , Kalinkin D , Kang K , Kapukchyan D , Kauder K , Ke HW , Keane D , Kechechyan A , Khan Z , Kikola DP , Kim C , Kisel I , Kisiel A , Kochenda L , Kocmanek M , Kollegger T , Kosarzewski LK , Kraishan AF , Krauth L , Kravtsov P , Krueger K , Kulathunga N , Kumar L , Kvapil J , Kwasizur JH , Lacey R , Landgraf JM , Landry KD , Lauret J , Lebedev A , Lednicky R , Lee JH , Li C , Li W , Li Y , Li X , Lidrych J , Lin T , Lisa MA , Liu P , Liu F , Liu H , Liu Y , Ljubicic T , Llope WJ , Lomnitz M , Longacre RS , Luo X , Luo S , Ma GL , Ma L , Ma YG , Ma R , Magdy N , Majka R , Mallick D , Margetis S , Markert C , Matis HS , Meehan K , Mei JC , Miller ZW , Minaev NG , Mioduszewski S , Mishra D , Mizuno S , Mohanty B , Mondal MM , Morozov DA , Mustafa MK , Nasim M , Nayak TK , Nelson JM , Nie M , Nigmatkulov G , Niida T , Nogach LV , Nonaka T , Nurushev SB , Odyniec G , Ogawa A , Oh K , Okorokov VA , Olvitt D , Page BS , Pak R , Pandit Y , Panebratsev Y , Pawlik B , Pei H , Perkins C , Pile P , Pluta J , Poniatowska K , Porter J , Posik M , Pruthi NK , Przybycien M , Putschke J , Qiu H , Quintero A , Ramachandran S , Ray RL , Reed R , Rehbein MJ , Ritter HG , Roberts JB , Rogachevskiy OV , Romero JL , Roth JD , Ruan L , Rusnak J , Rusnakova O , Sahoo NR , Sahu PK , Salur S , Sandweiss J , Sangaline E , Saur M , Schambach J , Schmah AM , Schmidke WB , Schmitz N , Schweid BR , Seger J , Sergeeva M , Seto R , Seyboth P , Shah N , Shahaliev E , Shanmuganathan PV , Shao M , Sharma MK , Sharma A , Shen WQ , Shi Z , Shi SS , Shou QY , Sichtermann EP , Sikora R , Simko M , Singha S , Skoby MJ , Smirnov D , Smirnov N , Solyst W , Song L , Sorensen P , Spinka HM , Srivastava B , Stanislaus TDS , Strikhanov M , Stringfellow B , Sugiura T , Sumbera M , Summa B , Sun XM , Sun Y , Sun X , Surrow B , Svirida DN , Tang AH , Tang Z , Taranenko A , Tarnowsky T , Tawfik A , Thader J , Thomas JH , Timmins AR , Tlusty D , Todoroki T , Tokarev M , Trentalange S , Tribble RE , Tribedy P , Tripathy SK , Trzeciak BA , Tsai OD , Ullrich T , Underwood DG , Upsal I , Van Buren G , van Nieuwenhuizen G , Vasiliev AN , Videbaek F , Vokal S , Voloshin SA , Vossen A , Wang F , Wang Y , Wang G , Wang Y , Webb JC , Webb G , Wen L , Westfall GD , Wieman H , Wissink SW , Witt R , Wu Y , Xiao ZG , Xie G , Xie W , Xu Z , Xu N , Xu YF , Xu QH , Xu J , Yang Q , Yang C , Yang S , Yang Y , Ye Z , Ye Z , Yi L , Yip K , Yoo IK , Yu N , Zbroszczyk H , Zha W , Zhang XP , Zhang S , Zhang JB , Zhang J , Zhang Z , Zhang S , Zhang J , Zhang Y , Zhao J , Zhong C , Zhou L , Zhou C , Zhu Z , Zhu X , Zyzak M
Beam Energy Dependence of Jet-Quenching Effects in Au+Au Collisions at sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV
Phys Rev Lett. 2018 Jul 20;121(3) :032301
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Abstract
We report measurements of the nuclear modification factor R_{CP} for charged hadrons as well as identified pi^{+(-)}, K^{+(-)}, and p(p[over ]) for Au+Au collision energies of sqrt[s_{NN}]=7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV. We observe a clear high-p_{T} net suppression in central collisions at 62.4 GeV for charged hadrons which evolves smoothly to a large net enhancement at lower energies. This trend is driven by the evolution of the pion spectra but is also very similar for the kaon spectra. While the magnitude of the proton R_{CP} at high p_{T} does depend on the collision energy, neither the proton nor the antiproton R_{CP} at high p_{T} exhibit net suppression at any energy. A study of how the binary collision-scaled high-p_{T} yield evolves with centrality reveals a nonmonotonic shape that is consistent with the idea that jet quenching is increasing faster than the combined phenomena that lead to enhancement.
Notes
1079-7114 Adamczyk, L Adams, J R Adkins, J K Agakishiev, G Aggarwal, M M Ahammed, Z Ajitanand, N N Alekseev, I Anderson, D M Aoyama, R Aparin, A Arkhipkin, D Aschenauer, E C Ashraf, M U Attri, A Averichev, G S Bai, X Bairathi, V Barish, K Behera, A Bellwied, R Bhasin, A Bhati, A K Bhattarai, P Bielcik, J Bielcikova, J Bland, L C Bordyuzhin, I G Bouchet, J Brandenburg, J D Brandin, A V Brown, D Bunzarov, I Butterworth, J Caines, H Calderon de la Barca Sanchez, M Campbell, J M Cebra, D Chakaberia, I Chaloupka, P Chang, Z Chankova-Bunzarova, N Chatterjee, A Chattopadhyay, S Chen, J H Chen, X Cheng, J Cherney, M Christie, W Contin, G Crawford, H J Das, S De Silva, L C Debbe, R R Dedovich, T G Deng, J Derevschikov, A A Didenko, L Dilks, C Dong, X Drachenberg, J L Draper, J E Dunkelberger, L E Dunlop, J C Efimov, L G Elsey, N Engelage, J Eppley, G Esha, R Esumi, S Evdokimov, O Ewigleben, J Eyser, O Fatemi, R Fazio, S Federic, P Federicova, P Fedorisin, J Feng, Z Filip, P Finch, E Fisyak, Y Flores, C E Fujita, J Fulek, L Gagliardi, C A Garand, D Geurts, F Gibson, A Girard, M Grosnick, D Gunarathne, D S Guo, Y Gupta, S Gupta, A Guryn, W Hamad, A I Hamed, A Harlenderova, A Harris, J W He, L Heppelmann, S Hirsch, A Hoffmann, G W Horvat, S Huang, X Huang, H Z Huang, T Huang, B Humanic, T J Huo, P Igo, G Jacobs, W W Jentsch, A Jia, J Jiang, K Jowzaee, S Judd, E G Kabana, S Kalinkin, D Kang, K Kapukchyan, D Kauder, K Ke, H W Keane, D Kechechyan, A Khan, Z Kikola, D P Kim, C Kisel, I Kisiel, A Kochenda, L Kocmanek, M Kollegger, T Kosarzewski, L K Kraishan, A F Krauth, L Kravtsov, P Krueger, K Kulathunga, N Kumar, L Kvapil, J Kwasizur, J H Lacey, R Landgraf, J M Landry, K D Lauret, J Lebedev, A Lednicky, R Lee, J H Li, C Li, W Li, Y Li, X Lidrych, J Lin, T Lisa, M A Liu, P Liu, F Liu, H Liu, Y Ljubicic, T Llope, W J Lomnitz, M Longacre, R S Luo, X Luo, S Ma, G L Ma, L Ma, Y G Ma, R Magdy, N Majka, R Mallick, D Margetis, S Markert, C Matis, H S Meehan, K Mei, J C Miller, Z W Minaev, N G Mioduszewski, S Mishra, D Mizuno, S Mohanty, B Mondal, M M Morozov, D A Mustafa, M K Nasim, Md Nayak, T K Nelson, J M Nie, M Nigmatkulov, G Niida, T Nogach, L V Nonaka, T Nurushev, S B Odyniec, G Ogawa, A Oh, K Okorokov, V A Olvitt, D Page, B S Pak, R Pandit, Y Panebratsev, Y Pawlik, B Pei, H Perkins, C Pile, P Pluta, J Poniatowska, K Porter, J Posik, M Pruthi, N K Przybycien, M Putschke, J Qiu, H Quintero, A Ramachandran, S Ray, R L Reed, R Rehbein, M J Ritter, H G Roberts, J B Rogachevskiy, O V Romero, J L Roth, J D Ruan, L Rusnak, J Rusnakova, O Sahoo, N R Sahu, P K Salur, S Sandweiss, J Sangaline, E Saur, M Schambach, J Schmah, A M Schmidke, W B Schmitz, N Schweid, B R Seger, J Sergeeva, M Seto, R Seyboth, P Shah, N Shahaliev, E Shanmuganathan, P V Shao, M Sharma, M K Sharma, A Shen, W Q Shi, Z Shi, S S Shou, Q Y Sichtermann, E P Sikora, R Simko, M Singha, S Skoby, M J Smirnov, D Smirnov, N Solyst, W Song, L Sorensen, P Spinka, H M Srivastava, B Stanislaus, T D S Strikhanov, M Stringfellow, B Sugiura, T Sumbera, M Summa, B Sun, X M Sun, Y Sun, X Surrow, B Svirida, D N Tang, A H Tang, Z Taranenko, A Tarnowsky, T Tawfik, A Thader, J Thomas, J H Timmins, A R Tlusty, D Todoroki, T Tokarev, M Trentalange, S Tribble, R E Tribedy, P Tripathy, S K Trzeciak, B A Tsai, O D Ullrich, T Underwood, D G Upsal, I Van Buren, G van Nieuwenhuizen, G Vasiliev, A N Videbaek, F Vokal, S Voloshin, S A Vossen, A Wang, F Wang, Y Wang, G Webb, J C Webb, G Wen, L Westfall, G D Wieman, H Wissink, S W Witt, R Wu, Y Xiao, Z G Xie, G Xie, W Xu, Z Xu, N Xu, Y F Xu, Q H Xu, J Yang, Q Yang, C Yang, S Yang, Y Ye, Z Yi, L Yip, K Yoo, I-K Yu, N Zbroszczyk, H Zha, W Zhang, X P Zhang, S Zhang, J B Zhang, J Zhang, Z Zhang, Y Zhao, J Zhong, C Zhou, L Zhou, C Zhu, Z Zhu, X Zyzak, M STAR Collaboration Journal Article United States Phys Rev Lett. 2018 Jul 20;121(3):032301. doi: 10.1103/PhysRevLett.121.032301.