Excess dileptons in high-energy nucleus-nucleus collisions

被引：10

作者：

Wong, CY ^{[1
]}

Wang, ZQ ^{[1
]}

机构：

[1] CHINA INST ATOM ENERGY,BEIJING,PEOPLES R CHINA

来源：

PHYSICS LETTERS B | 1996年 / 367卷 / 1-4期

关键词：

proton-nucleus reaction; heavy-ion reaction; dilepton; charm;

D O I：

10.1016/0370-2693(95)01471-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It has been observed recently that while continuum dilepton production and open charm production in high-energy pA collisions can be described in terms of the superposition of pp collisions, dilepton yields in S+U collisions are in excess of similar extrapolations. This feature can be explained as arising from the interaction of gluons produced in different soft baryon-baryon collisions, leading to additional open-charm pairs in nucleus-nucleus collisions but not in pA collisions.

引用

页码：50 / 54

页数：5

共 27 条

[1] ABREU MC, 1994, NUCL PHYS A, V566, pC77
[2] AGAKICHIEV G, 1995, UNPUB PHYS REV LETT
[3] ALBER T, 1994, NUCL PHYS A, V566, pC35
[4] TRANSVERSE ENERGY-DISTRIBUTIONS IN NUCLEUS - NUCLEUS COLLISIONS AT 200 GEV NUCLEON
BAGLIN, C
[J]. PHYSICS LETTERS B, 1990, 251 (03) : 472 - 476
[5] PSI'-PRODUCTION AND J/PSI-PRODUCTION IN P-W, P-U AND S-U INTERACTIONS AT 200-GEV/NUCLEON
BAGLIN, C
BUSSIERE, A
GUILLAUD, JP
KOSSAKOWSKI, R
LIAUD, P
RONCEUX, B
BARRIERE, C
CASTOR, J
CHAMBON, T
DEVAUX, A
ESPAGNON, B
FARGEIX, J
FORCE, P
LANDAUD, G
LUQUIN, L
SATURNINI, P
SONDEREGGER, P
ABREU, MC
BORDALO, P
FERREIRA, R
LOURENCO, C
PERALTA, L
RAMOS, S
SILVA, S
VARELA, J
GERSCHEL, C
JOUAN, D
TARRAGO, X
CHAURAND, B
KLUBERG, L
ROMANA, A
GORODETZKY, P
LAZIC, D
MAZINI, R
RACCA, C
BEDJIDIAN, M
CONTARDO, D
DESCROIX, E
DRAPIER, O
GROSSIORD, JY
GUICHARD, A
HAROUTUNIAN, R
OHLSSONMALEK, F
MANDRY, R
PIZZI, JR
[J]. PHYSICS LETTERS B, 1995, 345 (04) : 617 - 621
[6] BERGER EL, 1988, P ADV WORKSHOP QCD H
[7] Bjorken J. D., 1973, 1973 P SUMM I PART P
[8] GAVIN S, 1994, NUCL PHYS A, V566, pC383, DOI 10.1016/0375-9474(94)90650-5
[9] DILEPTON EMISSION AND THE QCD PHASE-TRANSITION IN ULTRARELATIVISTIC NUCLEAR COLLISIONS
KAJANTIE, K
KAPUSTA, J
MCLERRAN, L
MEKJIAN, A
[J]. PHYSICAL REVIEW D, 1986, 34 (09): : 2746 - 2754
[10] GLOBAL QCD ANALYSIS AND THE CTEQ PARTON DISTRIBUTIONS
LAI, HL
BOTTS, J
HUSTON, J
MORFIN, JG
OWENS, JF
QIU, JW
TUNG, WK
WEERTS, H
[J]. PHYSICAL REVIEW D, 1995, 51 (09): : 4763 - 4782

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