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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/16572

Title: Energy and system size dependence of phi meson production in Cu plus Cu and Au plus Au collisions
Authors: ABELEV, BI
AGGARWAL, MM
AHAMMED, Z
ANDERSON, BD
ARKHIPKIN, D
AVERICHEV, GS
BAI, Y
BALEWSKI, J
BARANNIKOVA, O
BARNSBY, LS
BAUDOT, J
BAUMGART, S
BEAVIS, DR
BELLWIED, R
BENEDOSSO, F
BETANCOURT, MJ
BETTS, RR
BHARADWAJ, S
BHASIN, A
BHATI, AK
BICHSEL, H
BIELCIK, J
BIELCIKOVA, J
BIRITZ, B
BLAND, LC
BOMBARA, M
BONNER, BE
BOTJE, M
BOUCHET, J
BRAIDOT, E
BRANDIN, AV
BRUNA, E
BUELTMANN, S
BURTON, TP
BYSTERSKY, M
CAI, XZ
CAINES, H
SANCHEZ, MCD
CALLNER, J
CATU, O
CEBRA, D
CENDEJAS, R
CERVANTES, MC
CHAJECKI, Z
CHALOUPKA, P
CHATTOPADHYAY, S
CHEN, HF
CHEN, JH
CHEN, JY
CHENG, J
CHERNEY, M
CHIKANIAN, A
CHOI, KE
CHRISTIE, W
CHUNG, SU
CLARKE, RF
CODRINGTON, MJ
COFFIN, JP
CORLISS, R
CORMIER, TM
COSENTINO, MR
CRAMER, JG
CRAWFORD, HJ
DAS, D
DASH, S
DAUGHERITY, M
DE SILVA, C
DEDOVICH, TG
DEPHILLIPS, M
DEREVSCHIKOV, AA
DE SOUZA, RD
DIDENKO, L
DJAWOTHO, P
DOGRA, SM
DONG, X
DRACHENBERG, JL
DRAPER, JE
DU, F
DUNLOP, JC
MAZUMDAR, MRD
EDWARDS, WR
EFIMOV, LG
ELHALHULI, E
ELNIMR, M
EMELIANOV, V
ENGELAGE, J
EPPLEY, G
ERAZMUS, B
ESTIENNE, M
EUN, L
FACHINI, P
FATEMI, R
FEDORISIN, J
FENG, A
FILIP, P
FINCH, E
FINE, V
FISYAK, Y
GAGLIARDI, CA
GAILLARD, L
GANGADHARAN, DR
GANTI, MS
GARCIA-SOLIS, E
GHAZIKHANIAN, V
GHOSH, P
GORBUNOV, YN
GORDON, A
GREBENYUK, O
GROSNICK, D
GRUBE, B
GUERTIN, SM
GUIMARAES, KSFF
GUPTA, A
GUPTA, N
GURYN, W
HAAG, B
HALLMAN, TJ
HAMED, A
HARRIS, JW
HE, W
HEINZ, M
HEPPLEMANN, S
HIPPOLYTE, B
HIRSCH, A
HJORT, E
HOFFMAN, AM
HOFFMANN, GW
HOFMAN, DJ
HOLLIS, RS
HUANG, HZ
HUMANIC, TJ
IGO, G
IORDANOVA, A
JACOBS, P
JACOBS, WW
JAKI, P
JIN, F
JONES, CL
JONES, PG
JOSEPH, J
JUDD, EG
KABANA, S
KAJIMOTO, K
KANG, K
KAPITAN, J
KAPLAN, M
KEANE, D
KECHECHYAN, A
KETTLER, D
KHODYREV, VY
KIKOLA, DP
KIRYLUK, J
KISIEL, A
KLEIN, SR
KNOSPE, AG
KOCOLOSKI, A
KOETKE, DD
KOPYTINE, M
KOTCHENDA, L
KOUCHPIL, V
KRAVTSOV, P
KRAVTSOV, VI
KRUEGER, K
KRUS, M
KUHN, C
KUMAR, L
KURNADI, P
LAMONT, MAC
LANDGRAF, JM
LAPOINTE, S
LAURET, J
LEBEDEV, A
LEDNICKY, R
LEE, CH
LEIGHT, W
LEVINE, MJ
LI, C
LI, Y
LIN, G
LIN, X
LINDENBAUM, SJ
LISA, MA
LIU, F
LIU, H
LIU, J
LIU, L
LJUBICIC, T
LLOPE, WJ
LONGACRE, RS
LOVE, WA
LU, Y
LUDLAM, T
LYNN, D
MA, GL
MA, YG
MAHAPATRA, DP
MAJKA, R
MALL, OI
MANGOTRA, LK
MANWEILER, R
MARGETIS, S
MARKERT, C
MATIS, HS
MATULENKO, YA
MCSHANE, TS
MESCHANIN, A
MILLNER, R
MINAEV, NG
MIODUSZEWSKI, S
MISCHKE, A
MITCHELL, J
MOHANTY, B
MOROZOV, DA
MUNHOZ, MG
NANDI, BK
NATTRASS, C
NAYAK, TK
NELSON, JM
NEPALI, C
NETRAKANTI, PK
NG, MJ
NOGACH, LV
NURUSHEV, SB
ODYNIEC, G
OGAWA, A
OKADA, H
OKOROKOV, V
OLSON, D
PACHR, M
PAGE, BS
PAL, SK
PANDIT, Y
PANEBRATSEV, Y
PAWLAK, T
PEITZMANN, T
PEREVOZTCHIKOV, V
PERKINS, C
PERYT, W
PHATAK, SC
PLANINIC, M
PLUTA, J
POLJAK, N
POSKANZER, AM
POTUKUCHI, BVKS
PRINDLE, D
PRUNEAU, C
PRUTHI, NK
PUTSCHKE, J
RANIWALA, R
RANIWALA, S
RAY, RL
REDWINE, R
REED, R
RIDIGER, A
RITTER, HG
ROBERTS, JB
ROGACHEVSKIY, OV
ROMERO, JL
ROSE, A
ROY, C
RUAN, L
RUSSCHER, MJ
RYKOV, V
SAHOO, R
SAKREJDA, I
SAKUMA, T
SALUR, S
SANDWEISS, J
SARSOUR, M
SAVIN, I
SCHAMBACH, J
SCHARENBERG, RP
SCHMITZ, N
SEGER, J
SELYUZHENKOV, I
SEYBOTH, R
SHABETAI, A
SHAHALIEV, E
SHAO, M
SHARMA, M
SHI, SS
SHI, XH
SICHTERMANN, E
SIMON, F
SINGARAJU, RN
SKOBY, MJ
SMIRNOV, N
SNELLINGS, R
SORENSEN, P
SOWINSKI, J
SPINKA, HM
SRIVASTAVA, B
STADNIK, A
STANISLAUS, TDS
STASZAK, D
STRIKHANOV, M
STRINGFELLOW, B
SUAIDE, AAP
SUAREZ, MC
SUBBA, NL
SUMBERA, M
SUN, XM
SUN, Y
SUN, Z
SURROW, B
SYMONS, TJM
DE TOLEDO, AS
TAKAHASHI, J
TANG, AH
TANG, Z
TARNOWSKY, T
THEIN, D
THOMAS, JH
TIAN, J
TIMMINS, AR
TIMOSHENKO, S
TLUSTY, D
TOKAREV, M
TRAINOR, TA
TRAM, VN
TRATTNER, AL
TRENTALANGE, S
TRIBBLE, RE
TSAI, OD
ULERY, J
ULLRICH, T
UNDERWOOD, DG
VAN BUREN, G
VAN LEEUWEN, M
MOLEN, AMV
VANFOSSEN, JA
VARMA, R
VASCONCELOS, GMS
VASILEVSKI, IM
VASILIEV, AN
VIDEBAEK, F
VIGDOR, SE
VIYOGI, YP
VOKAL, S
VOLOSHIN, SA
WADA, M
WAGGONER, WT
WALKER, M
WANG, F
WANG, G
WANG, JS
WANG, Q
WANG, X
WANG, XL
WANG, Y
WEBB, JC
WESTFALL, GD
WHITTEN, C
WIEMAN, H
WISSINK, SW
WITT, R
WU, Y
XU, N
XU, QH
XU, Y
XU, Z
YEPES, P
YOO, IK
YUE, Q
ZAWISZA, M
ZBROSZCZYK, H
ZHAN, W
ZHANG, H
ZHANG, S
ZHANG, WM
ZHANG, Y
ZHANG, ZP
ZHAO, Y
ZHONG, C
ZHOU, J
ZOULKARNEEV, R
ZOULKARNEEVA, Y
ZUO, JX
Keywords: quark-gluon plasma
heavy-ion collisions
proton-proton collisions
strangeness enhancement
nucleus collisions
pp collisions
model
rule
collaboration
conservation
Issue Date: 2009
Publisher: ELSEVIER SCIENCE BV
Citation: PHYSICS LETTERS B, 673(3), 183-191
Abstract: We study the beam-energy and system-size dependence of phi meson production (using the hadronic decay mode phi -> K(+) K(-)) by comparing the new results from Cu + Cu collisions and previously reported Au + Au collisions at root s(NN) = 62.4 and 200 GeV measured in the STAR experiment at RHIC. Data presented in this Letter are from mid-rapidity (vertical bar y vertical bar < 0.5) for 0.4 < p(T) < 5 GeV/c. At a given beam energy, the transverse momentum distributions for phi mesons are observed to be similar in yield and shape for Cu + Cu and Au + Au colliding systems with similar average numbers of participating nucleons. The phi meson yields in nucleus-nucleus collisions, normalized by the average number of participating nucleons, are found to be enhanced relative to those from p + p collisions. The enhancement for phi mesons lies between strange hadrons having net strangeness = 1 (K(-) and <(A)over bar>) and net strangeness = 2 (Xi). The enhancement for phi mesons is observed to be higher at root s(NN) = 200 GeV compared to 62.4 GeV. These observations for the produced phi(s (s) over bar) mesons clearly suggest that, at these collision energies, the source of enhancement of strange hadrons is related to the formation of a dense partonic medium in high energy nucleus-nucleus collisions and cannot be alone due to canonical suppression of their production in smaller systems. (C) 2009
URI: http://dx.doi.org/10.1016/j.physletb.2009.02.037
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16572
http://hdl.handle.net/10054/16572
ISSN: 0370-2693
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