Biblioteca Digital

Balance functions from Au+Au, d+Au, and p+p collisions at root s(NN)=200 GeV

**Autoria(s):** AGGARWAL, M. M.; AHAMMED, Z.; ALAKHVERDYANTS, A. V.; ALEKSEEV, I.; ALFORD, J.; ANDERSON, B. D.; ARKHIPKIN, D.; AVERICHEV, G. S.; BALEWSKI, J.; BARNBY, L. S.; BAUMGART, S.; BEAVIS, D. R.; BELLWIED, R.; BETANCOURT, M. J.; BETTS, R. R.; BHASIN, A.; BHATI, A. K.; BICHSEL, H.; BIELCIK, J.; BIELCIKOVA, J.; BIRITZ, B.; BLAND, L. C.; BONNER, B. E.; BOUCHET, J.; BRAIDOT, E.; BRANDIN, A. V.; BRIDGEMAN, A.; BRUNA, E.; BUELTMANN, S.; BUNZAROV, I.; BURTON, T. P.; CAI, X. Z.; CAINES, H.; SANCHEZ, M. Calderon de la Barca; CATU, O.; CEBRA, D.; CENDEJAS, R.; CERVANTES, M. C.; CHAJECKI, Z.; CHALOUPKA, P.; CHATTOPADHYAY, S.; CHEN, H. F.; CHEN, J. H.; CHEN, J. Y.; CHENG, J.; CHERNEY, M.; CHIKANIAN, A.; CHOI, K. E.; CHRISTIE, W.; CHUNG, P.; CLARKE, R. F.; CODRINGTON, M. J. M.; CORLISS, R.; CRAMER, J. G.; CRAWFORD, H. J.; DAS, D.; DASH, S.; LEYVA, A. Davila; Silva, Línder Cândido da; DEBBE, R. R.; DEDOVICH, T. G.; DEREVSCHIKOV, A. A.; SOUZA, R. Derradi de; DIDENKO, L.; DJAWOTHO, P.; DOGRA, S. M.; DONG, X.; DRACHENBERG, J. L.; DRAPER, J. E.; DUNLOP, J. C.; MAZUMDAR, M. R. Dutta; EFIMOV, L. G.; ELHALHULI, E.; ELNIMR, M.; ENGELAGE, J.; EPPLEY, G.; ERAZMUS, B.; ESTIENNE, M.; EUN, L.; EVDOKIMOV, O.; FACHINI, P.; FATEMI, R.; FEDORISIN, J.; FERSCH, R. G.; FILIP, P.; FINCH, E.; FINE, V.; FISYAK, Y.; GAGLIARDI, C. A.; GANGADHARAN, D. R.; GANTI, M. S.; GARCIA-SOLIS, E. J.; GEROMITSOS, A.; GEURTS, F.; GHAZIKHANIAN, V.; GHOSH, P.; GORBUNOV, Y. N.; GORDON, A.; GREBENYUK, O.; GROSNICK, D.; GUERTIN, S. M.; GUPTA, A.; GUPTA, N.; GURYN, W.; HAAG, B.; HAMED, A.; HAN, L-X.; HARRIS, J. W.; HAYS-WEHLE, J. P.; HEINZ, M.; HEPPELMANN, S.; HIRSCH, A.; HJORT, E.; HOFFMAN, A. M.; HOFFMANN, G. W.; HOFMAN, D. J.; HUANG, B.; HUANG, H. Z.; HUMANIC, T. J.; HUO, L.; IGO, G.; JACOBS, P.; JACOBS, W. W.; JENA, C.; JIN, F.; JONES, C. L.; JONES, P. G.; JOSEPH, J.; JUDD, E. G.; KABANA, S.; KAJIMOTO, K.; KANG, K.; KAPITAN, J.; KAUDER, K.; KEANE, D.; KECHECHYAN, A.; KETTLER, D.; KIKOLA, D. P.; KIRYLUK, J.; KISIEL, A.; KLEIN, S. R.; KNOSPE, A. G.; KOCOLOSKI, A.; KOETKE, D. D.; KOLLEGGER, T.; KONZER, J.; KORALT, I.; KOROLEVA, L.; KORSCH, W.; KOTCHENDA, L.; KOUCHPIL, V.; KRAVTSOV, P.; KRUEGER, K.; KRUS, M.; KUMAR, L.; KURNADI, P.; LAMONT, M. A. C.; LANDGRAF, J. M.; LAPOINTE, S.; LAURET, J.; LEBEDEV, A.; LEDNICKY, R.; LEE, C-H.; LEE, J. H.; LEIGHT, W.; LEVINE, M. J.; LI, C.; LI, L.; LI, N.; LI, W.; LI, X.; LI, Y.; LI, Z. M.; LIN, G.; LINDENBAUM, S. J.; LISA, M. A.; LIU, F.; LIU, H.; LIU, J.; LJUBICIC, T.; LLOPE, W. J.; LONGACRE, R. S.; LOVE, W. A.; LU, Y.; LUO, X.; MA, G. L.; MA, Y. G.; MAHAPATRA, D. P.; MAJKA, R.; MALL, O. I.; MANGOTRA, L. K.; MANWEILER, R.; MARGETIS, S.; MARKERT, C.; MASUI, H.; MATIS, H. S.; MATULENKO, Yu. A.; MCDONALD, D.; MCSHANE, T. S.; MESCHANIN, A.; MILNER, R.; MINAEV, N. G.; MIODUSZEWSKI, S.; MISCHKE, A.; MITROVSKI, M. K.; MOHANTY, B.; MONDAL, M. M.; MOROZOV, B.; MOROZOV, D. A.; Munhoz, Marcelo Gameiro; NANDI, B. K.; NATTRASS, C.; NAYAK, T. K.; NELSON, J. M.; NETRAKANTI, P. K.; NG, M. J.; NOGACH, L. V.; NURUSHEV, S. B.; ODYNIEC, G.; OGAWA, A.; OKOROKOV, V.; OLDAG, E. W.; OLSON, D.; PACHR, M.; PAGE, B. S.; PAL, S. K.; PANDIT, Y.; PANEBRATSEV, Y.; PAWLAK, T.; PEITZMANN, T.; PEREVOZTCHIKOV, V.; PERKINS, C.; PERYT, W.; PHATAK, S. C.; PILE, P.; PLANINIC, M.; PLOSKON, M. A.; PLUTA, J.; PLYKU, D.; POLJAK, N.; POSKANZER, A. M.; POTUKUCHI, B. V. K. S.; POWELL, C. B.; PRINDLE, D.; PRUNEAU, C.; PRUTHI, N. K.; PUJAHARI, P. R.; PUTSCHKE, J.; RANIWALA, R.; RANIWALA, S.; RAY, R. L.; REDWINE, R.; REED, R.; RITTER, H. G.; ROBERTS, J. B.; ROGACHEVSKIY, O. V.; ROMERO, J. L.; ROSE, A.; ROY, C.; RUAN, L.; SAHOO, R.; SAKAI, S.; SAKREJDA, I.; SAKUMA, T.; SALUR, S.; SANDWEISS, J.; SANGALINE, E.; SCHAMBACH, J.; SCHARENBERG, R. P.; SCHMITZ, N.; SCHUSTER, T. R.; SEELE, J.; SEGER, J.; SELYUZHENKOV, I.; SEYBOTH, P.; SHAHALIEV, E.; SHAO, M.; SHARMA, M.; SHI, S. S.; SICHTERMANN, E. P.; SIMON, F.; SINGARAJU, R. N.; SKOBY, M. J.; SMIRNOV, N.; SORENSEN, P.; SOWINSKI, J.; SPINKA, H. M.; SRIVASTAVA, B.; STANISLAUS, T. D. S.; STASZAK, D.; STEVENS, J. R.; STOCK, R.; STRIKHANOV, M.; STRINGFELLOW, B.; Suaide, Alexandre Alarcon do Passo; SUAREZ, M. C.; SUBBA, N. L.; SUMBERA, M.; SUN, X. M.; SUN, Y.; SUN, Z.; SURROW, B.; SVIRIDA, D. N.; SYMONS, T. J. M.; Szanto de Toledo, Alejandro; TAKAHASHI, J.; TANG, A. H.; TANG, Z.; TARINI, L. H.; TARNOWSKY, T.; THEIN, D.; THOMAS, J. H.; TIAN, J.; TIMMINS, A. R.; TIMOSHENKO, S.; TLUSTY, D.; TOKAREV, M.; TRAM, V. N.; TRENTALANGE, S.; TRIBBLE, R. E.; TSAI, O. D.; ULERY, J.; ULLRICH, T.; UNDERWOOD, D. G.; BUREN, G. Van; LEEUWEN, M. van; NIEUWENHUIZEN, G. van; VANFOSSEN JR., J. A.; VARMA, R.; VASCONCELOS, G. M. S.; VASILIEV, A. N.; VIDEBAEK, F.; VIYOGI, Y. P.; VOKAL, S.; VOLOSHIN, S. A.; WADA, M.; WALKER, M.; WANG, F.; WANG, G.; WANG, H.; WANG, J. S.; WANG, Q.; WANG, X. L.; WANG, Y.; WEBB, G.; WEBB, J. C.; WESTFALL, G. D.; WHITTEN JR., C.; WIEMAN, H.; WISSINK, S. W.; WITT, R.; WU, Y. F.; XIE, W.; XU, N.; XU, Q. H.; XU, W.; XU, Y.; XU, Z.; XUE, L.; YANG, Y.; YEPES, P.; YIP, K.; YOO, I-K.; YUE, Q.; ZAWISZA, M.; ZBROSZCZYK, H.; ZHAN, W.; ZHANG, J. B.; ZHANG, S.; ZHANG, W. M.; ZHANG, X. P.; ZHANG, Y.; ZHANG, Z. P.; ZHAO, J.; ZHONG, C.; ZHOU, J.; ZHOU, W.; ZHU, X.; ZHU, Y. H.; ZOULKARNEEV, R.; ZOULKARNEEVA, Y.
Contribuinte(s)	UNIVERSIDADE DE SÃO PAULO
Data(s)	18/04/2012 18/04/2012 2010
Resumo	Balance functions have been measured for charged-particle pairs, identified charged-pion pairs, and identified charged-kaon pairs in Au + Au, d + Au, and p + p collisions at root s(NN) = 200 GeV at the Relativistic Heavy Ion Collider using the STAR detector. These balance functions are presented in terms of relative pseudorapidity, Delta eta, relative rapidity, Delta y, relative azimuthal angle, Delta phi, and invariant relative momentum, q(inv). For charged-particle pairs, the width of the balance function in terms of Delta eta scales smoothly with the number of participating nucleons, while HIJING and UrQMD model calculations show no dependence on centrality or system size. For charged-particle and charged-pion pairs, the balance functions widths in terms of Delta eta and Delta y are narrower in central Au + Au collisions than in peripheral collisions. The width for central collisions is consistent with thermal blast-wave models where the balancing charges are highly correlated in coordinate space at breakup. This strong correlation might be explained by either delayed hadronization or limited diffusion during the reaction. Furthermore, the narrowing trend is consistent with the lower kinetic temperatures inherent to more central collisions. In contrast, the width of the balance function for charged-kaon pairs in terms of Delta y shows little centrality dependence, which may signal a different production mechanism for kaons. The widths of the balance functions for charged pions and kaons in terms of q(inv) narrow in central collisions compared to peripheral collisions, which may be driven by the change in the kinetic temperature. RHIC Operations Group RCF at BNL NERSC Center at LBNL Open Science Grid Office of NP, US Department of Energy (DOE) Office of Science Office of HEP, US Department of Energy (DOE) Office of Science US NSF National Science Foundation Sloan Foundation Deutsche Forschungsgemeinschaft - DFG cluster of excellence ""Origin and Structure of the Universe"" of Germany Centre National de la Recherche Scientifique - CNRS/IN2P3 of the United Kingdom STFC of the United Kingdom EPSRC of the United Kingdom FAPESP CNPq of Brazil MES Ministry of Education and Science of the Russian Federation NNSFC of China CAS of China MoST of China MoE of China GACR of the Czech Republic MSMT of the Czech Republic FOM of the Netherlands NWO of the Netherlands (DAE) Department of Atomic Energy, India (DST) Department of Science and Technology, India (CSIR) Council of Scientific and Industrial Research - India Polish Ministry of Science and Higher Education Korea Research Foundation (KRF) Ministry of Science, Education, and Sports of the Republic of Croatia MES Russian Ministry of Science and Technology RosAtom of Russia
Identificador	PHYSICAL REVIEW C, v.82, n.2, 2010 0556-2813 http://producao.usp.br/handle/BDPI/16295 10.1103/PhysRevC.82.024905 http://dx.doi.org/10.1103/PhysRevC.82.024905
Idioma(s)	eng
Publicador	AMER PHYSICAL SOC
Relação	Physical Review C
Direitos	restrictedAccess Copyright AMER PHYSICAL SOC
Palavras-Chave	#HEAVY-ION COLLISIONS #AU-AU COLLISIONS #TIME PROJECTION CHAMBER #BY-EVENT FLUCTUATIONS #QUARK-GLUON PLASMA #TRANSVERSE-MOMENTUM #MEAN-P(T) FLUCTUATIONS #MODEL #HADRONIZATION #SIGNATURES #Physics, Nuclear
Tipo	article original article publishedVersion

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