Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/100/16164
Title: Di-electron spectrum at mid-rapidity in p+p collisions at root s=200 GeV
Authors: ADAMCZYK, L
AGAKISHIEV, G
AGGARWAL, MM
AHAMMED, Z
ALAKHVERDYANTS, AV
ALEKSEEV, I
ALFORD, J
ANDERSON, BD
ANSON, CD
ARKHIPKIN, D
ASCHENAUER, E
AVERICHEV, GS
BALEWSKI, J
BANERJEE, A
BARNOVSKA, Z
BEAVIS, DR
BELLWIED, R
BETANCOURT, MJ
BETTS, RR
BHASIN, A
BHATI, AK
BICHSEL, H
BIELCIK, J
BIELCIKOVA, J
BLAND, LC
BORDYUZHIN, IG
BOROWSKI, W
BOUCHET, J
BRANDIN, AV
BROVKO, SG
BRUNA, E
BUELTMANN, S
BUNZAROV, I
BURTON, TP
BUTTERWORTH, J
CAI, XZ
CAINES, H
SANCHEZ, MCDLB
CEBRA, D
CENDEJAS, R
CERVANTES, MC
CHALOUPKA, P
CHANG, Z
CHATTOPADHYAY, S
CHEN, HF
CHEN, JH
CHEN, JY
CHEN, L
CHENG, J
CHERNEY, M
CHIKANIAN, A
CHRISTIE, W
CHUNG, P
CHWASTOWSKI, J
CODRINGTON, MJM
CORLISS, R
CRAMER, JG
CRAWFORD, HJ
CUI, X
LEYVA, AD
DE SILVA, LC
DEBBE, RR
DEDOVICH, TG
DENG, J
DE SOUZA, RD
DHAMIJA, S
DIDENKO, L
DING, F
DION, A
DJAWOTHO, P
DONG, X
DRACHENBERG, JL
DRAPER, JE
DU, CM
DUNKELBERGER, LE
DUNLOP, JC
EFIMOV, LG
ELNIMR, M
ENGELAGE, J
EPPLEY, G
EUN, L
EVDOKIMOV, O
FATEMI, R
FAZIO, S
FEDORISIN, J
FERSCH, RG
FILIP, P
FINCH, E
FISYAK, Y
GAGLIARDI, CA
GANGADHARAN, DR
GEURTS, F
GIBSON, A
GLISKE, S
GORBUNOV, YN
GREBENYUK, OG
GROSNICK, D
GUPTA, S
GURYN, W
HAAG, B
HAJKOVA, O
HAMED, A
HAN, LX
HARRIS, JW
HAYS-WEHLE, JP
HEPPELMANN, S
HIRSCH, A
HOFFMANN, GW
HOFMAN, DJ
HORVAT, S
HUANG, B
HUANG, HZ
HUCK, P
HUMANIC, TJ
HUO, L
IGO, G
JACOBS, WW
JENA, C
JOSEPH, J
JUDD, EG
KABANA, S
KANG, K
KAPITAN, J
KAUDER, K
KE, HW
KEANE, D
KECHECHYAN, A
KESICH, A
KETTLER, D
KIKOLA, DP
KIRYLUK, J
KISIEL, A
KIZKA, V
KLEIN, SR
KOETKE, DD
KOLLEGGER, T
KONZER, J
KORALT, I
KOROLEVA, L
KORSCH, W
KOTCHENDA, L
KRAVTSOV, P
KRUEGER, K
KUMAR, L
LAMONT, MAC
LANDGRAF, JM
LAPOINTE, S
LAURET, J
LEBEDEV, A
LEDNICKY, R
LEE, JH
LEIGHT, W
LEVINE, MJ
LI, C
LI, L
LI, W
LI, X
LI, X
LI, Y
LI, ZM
LIMA, LM
LISA, MA
LIU, F
LJUBICIC, T
LLOPE, WJ
LONGACRE, RS
LU, Y
LUO, X
LUSZCZAK, A
MA, GL
MA, YG
DON, DMMDM
MAHAPATRA, DP
MAJKA, R
MALL, OI
MARGETIS, S
MARKERT, C
MASUI, H
MATIS, HS
MCDONALD, D
MCSHANE, TS
MIODUSZEWSKI, S
MITROVSKI, MK
MOHAMMED, Y
MOHANTY, B
MONDAL, MM
MOROZOV, B
MUNHOZ, MG
MUSTAFA, MK
NAGLIS, M
NANDI, BK
NASIM, M
NAYAK, TK
NOGACH, LV
NOVAK, J
ODYNIEC, G
OGAWA, A
OH, K
OHLSON, A
OKOROKOV, V
OLDAG, EW
OLIVEIRA, RAN
OLSON, D
OSTROWSKI, P
PACHR, M
PAGE, BS
PAL, SK
PAN, YX
PANDIT, Y
PANEBRATSEV, Y
PAWLAK, T
PAWLIK, B
PEI, H
PERKINS, C
PERYT, W
PILE, P
PLANINIC, M
PLUTA, J
PLYKU, D
POLJAK, N
PORTER, J
POSKANZER, AM
POWELL, CB
PRINDLE, D
PRUNEAU, C
PRUTHI, NK
PRZYBYCIEN, M
PUJAHARI, PR
PUTSCHKE, J
QIU, H
RANIWALA, R
RANIWALA, S
RAY, RL
REDWINE, R
REED, R
RILEY, CK
RITTER, HG
ROBERTS, JB
ROGACHEVSKIY, OV
ROMERO, JL
ROSS, JF
RUAN, L
RUSNAK, J
SAHOO, NR
SAKREJDA, I
SALUR, S
SANDACZ, A
SANDWEISS, J
SANGALINE, E
SARKAR, A
SCHAMBACH, J
SCHARENBERG, RP
SCHMAH, AM
SCHMIDKE, B
SCHMITZ, N
SCHUSTER, TR
SEELE, J
SEGER, J
SEYBOTH, P
SHAH, N
SHAHALIEV, E
SHAO, M
SHARMA, B
SHARMA, M
SHI, SS
SHOU, QY
SICHTERMANN, EP
SINGARAJU, RN
SKOBY, MJ
SMIRNOV, D
SMIRNOV, N
SOLANKI, D
SORENSEN, P
DESOUZA, UG
SPINKA, HM
SRIVASTAVA, B
STANISLAUS, TDS
STEADMAN, SG
STEVENS, JR
STOCK, R
STRIKHANOV, M
STRINGFELLOW, B
SUAIDE, AAP
SUAREZ, MC
SUMBERA, M
SUN, XM
SUN, Y
SUN, Z
SURROW, B
SVIRIDA, DN
SYMONS, TJM
DE TOLEDO, AS
TAKAHASHI, J
TANG, AH
TANG, Z
TARINI, LH
TARNOWSKY, T
THEIN, D
THOMAS, JH
TIAN, J
TIMMINS, AR
TLUSTY, D
TOKAREV, M
TRAINOR, TA
TRENTALANGE, S
TRIBBLE, RE
TRIBEDY, P
TRZECIAK, BA
TSAI, OD
TURNAU, J
ULLRICH, T
UNDERWOOD, DG
VAN BUREN, G
VAN NIEUWENHUIZEN, G
JR, JAV
VARMA, R
VASCONCELOS, GMS
VIDEBK, F
VIYOGI, YP
VOKAL, S
VOLOSHIN, SA
VOSSEN, A
WADA, M
WANG, F
WANG, G
WANG, H
WANG, JS
WANG, Q
WANG, XL
WANG, Y
WEBB, G
WEBB, JC
WESTFALL, GD
JR, CW
WIEMAN, H
WISSINK, SW
WITT, R
WITZKE, W
WU, YF
XIAO, Z
XIE, W
XIN, K
XU, H
XU, N
XU, QH
XU, W
XU, Y
XU, Z
XUE, L
YANG, Y
YANG, Y
YEPES, P
YI, Y
YIP, K
YOO, IK
ZAWISZA, M
ZBROSZCZYK, H
ZHANG, JB
ZHANG, S
ZHANG, WM
ZHANG, XP
ZHANG, Y
ZHANG, ZP
ZHAO, F
ZHAO, J
ZHONG, C
ZHU, X
ZHU, YH
ZOULKARNEEVA, Y
Issue Date: 2012
Publisher: AMER PHYSICAL SOC
Citation: PHYSICAL REVIEW C, 86(2)
Abstract: We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via e(+) e(-) decays, from root s = 200 GeV p + p collisions, measured by the large-acceptance experiment STAR at the Relativistic Heavy Ion Collider. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted omega -> e(+) e(-) invariant yields are consistent with previous measurements. The mid-rapidity yields (dN/dy) of phi and J/psi are extracted through their di-electron decay channels and are consistent with the previous measurements of phi -> K+ K- and J/psi -> e(+) e(-). Our results suggest a new upper limit of the branching ratio of the eta -> e(+) e(-) of 1.7 x 10(-5) at the 90% confidence level.
URI: http://dx.doi.org/10.1103/PhysRevC.86.024906
http://dspace.library.iitb.ac.in/jspui/handle/100/16164
ISSN: 0556-2813
1089-490X
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