Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2012 Feb 17;108(7):072302.
doi: 10.1103/PhysRevLett.108.072302. Epub 2012 Feb 14.

Identified hadron compositions in p+p and Au+Au collisions at high transverse momenta at √S(NN)=200 GeV

G Agakishiev  1 , M M Aggarwal, Z Ahammed, A V Alakhverdyants, I Alekseev, J Alford, B D Anderson, C D Anson, D Arkhipkin, G S Averichev, J Balewski, L S Barnby, D R Beavis, R Bellwied, M J Betancourt, R R Betts, A Bhasin, A K Bhati, H Bichsel, J Bielcik, J Bielcikova, L C Bland, I G Bordyuzhin, W Borowski, J Bouchet, E Braidot, A V Brandin, S G Brovko, E Bruna, S Bueltmann, I Bunzarov, T P Burton, X Z Cai, H Caines, M Calderón de la Barca Sánchez, D Cebra, R Cendejas, M C Cervantes, P Chaloupka, S Chattopadhyay, H F Chen, J H Chen, J Y Chen, L Chen, J Cheng, M Cherney, A Chikanian, W Christie, P Chung, M J M Codrington, R Corliss, J G Cramer, H J Crawford, X Cui, A Davila Leyva, L C De Silva, R R Debbe, T G Dedovich, J Deng, A A Derevschikov, R Derradi de Souza, L Didenko, P Djawotho, X Dong, J L Drachenberg, J E Draper, C M Du, J C Dunlop, L G Efimov, M Elnimr, J Engelage, G Eppley, M Estienne, L Eun, O Evdokimov, P Fachini, R Fatemi, J Fedorisin, R G Fersch, P Filip, E Finch, V Fine, Y Fisyak, C A Gagliardi, D R Gangadharan, F Geurts, P Ghosh, Y N Gorbunov, A Gordon, O G Grebenyuk, D Grosnick, A Gupta, S Gupta, W Guryn, B Haag, O Hajkova, A Hamed, L-X Han, J W Harris, J P Hays-Wehle, S Heppelmann, A Hirsch, G W Hoffmann, D J Hofman, B Huang, H Z Huang, T J Humanic, L Huo, G Igo, W W Jacobs, C Jena, J Joseph, E G Judd, S Kabana, K Kang, J Kapitan, K Kauder, H W Ke, D Keane, A Kechechyan, D Kettler, D P Kikola, J Kiryluk, A Kisiel, V Kizka, S R Klein, D D Koetke, T Kollegger, J Konzer, I Koralt, L Koroleva, W Korsch, L Kotchenda, P Kravtsov, K Krueger, L Kumar, M A C Lamont, J M Landgraf, S LaPointe, J Lauret, A Lebedev, R Lednicky, J H Lee, W Leight, M J LeVine, C Li, L Li, W Li, X Li, X Li, Y Li, Z M Li, L M Lima, M A Lisa, F Liu, T Ljubicic, W J Llope, R S Longacre, Y Lu, E V Lukashov, X Luo, G L Ma, Y G Ma, D P Mahapatra, R Majka, O I Mall, S Margetis, C Markert, H Masui, H S Matis, D McDonald, T S McShane, A Meschanin, R Milner, N G Minaev, S Mioduszewski, M K Mitrovski, Y Mohammed, B Mohanty, M M Mondal, B Morozov, D A Morozov, M G Munhoz, M K Mustafa, M Naglis, B K Nandi, Md Nasim, T K Nayak, L V Nogach, S B Nurushev, G Odyniec, A Ogawa, K Oh, A Ohlson, V Okorokov, E W Oldag, R A N Oliveira, D Olson, M Pachr, B S Page, S K Pal, Y Pandit, Y Panebratsev, T Pawlak, H Pei, T Peitzmann, C Perkins, W Peryt, P Pile, M Planinic, J Pluta, D Plyku, N Poljak, J Porter, A M Poskanzer, C B Powell, D Prindle, C Pruneau, N K Pruthi, P R Pujahari, J Putschke, H Qiu, R Raniwala, S Raniwala, R L Ray, R Redwine, R Reed, H G Ritter, J B Roberts, O V Rogachevskiy, J L Romero, L Ruan, J Rusnak, N R Sahoo, I Sakrejda, S Salur, J Sandweiss, E Sangaline, A Sarkar, J Schambach, R P Scharenberg, A M Schmah, N Schmitz, T R Schuster, J Seele, J Seger, I Selyuzhenkov, P Seyboth, N Shah, E Shahaliev, M Shao, M Sharma, S S Shi, Q Y Shou, E P Sichtermann, F Simon, R N Singaraju, M J Skoby, N Smirnov, D Solanki, P Sorensen, U G deSouza, H M Spinka, B Srivastava, T D S Stanislaus, S G Steadman, J R Stevens, R Stock, M Strikhanov, B Stringfellow, A A P Suaide, M C Suarez, M Sumbera, X M Sun, Y Sun, Z Sun, B Surrow, D N Svirida, T J M Symons, A Szanto de Toledo, J Takahashi, A H Tang, Z Tang, L H Tarini, T Tarnowsky, D Thein, J H Thomas, J Tian, A R Timmins, D Tlusty, M Tokarev, T A Trainor, S Trentalange, R E Tribble, P Tribedy, B A Trzeciak, O D Tsai, T Ullrich, D G Underwood, G Van Buren, G van Nieuwenhuizen, J A Vanfossen Jr, R Varma, G M S Vasconcelos, A N Vasiliev, F Videbæk, Y P Viyogi, S Vokal, S A Voloshin, M Wada, M Walker, F Wang, G Wang, H Wang, J S Wang, Q Wang, X L Wang, Y Wang, G Webb, J C Webb, G D Westfall, C Whitten Jr, H Wieman, S W Wissink, R Witt, W Witzke, Y F Wu, Z Xiao, W Xie, H Xu, N Xu, Q H Xu, W Xu, Y Xu, Z Xu, L Xue, Y Yang, Y Yang, P Yepes, K Yip, I-K Yoo, M Zawisza, H Zbroszczyk, W Zhan, J B Zhang, S Zhang, W M Zhang, X P Zhang, Y Zhang, Z P Zhang, F Zhao, J Zhao, C Zhong, X Zhu, Y H Zhu, Y Zoulkarneeva; STAR Collaboration
Affiliations

Identified hadron compositions in p+p and Au+Au collisions at high transverse momenta at √S(NN)=200 GeV

G Agakishiev et al. Phys Rev Lett. .

Abstract

We report transverse momentum (p(T)≤15 GeV/c) spectra of π(±), K(±), p, p[over ¯], K(S)(0), and ρ(0) at midrapidity in p+p and Au+Au collisions at √S(NN)=200 GeV. Perturbative QCD calculations are consistent with π(±) spectra in p+p collisions but do not reproduce K and p(p[over ¯]) spectra. The observed decreasing antiparticle-to-particle ratios with increasing p(T) provide experimental evidence for varying quark and gluon jet contributions to high-p(T) hadron yields. The relative hadron abundances in Au+Au at p(T)≳8 GeV/c are measured to be similar to the p+p results, despite the expected Casimir effect for parton energy loss.

PubMed Disclaimer

LinkOut - more resources