THE RHO-PEAK IN THE DIMUON SPECTRUM AS A CLOCK FOR FIREBALL LIFETIMES IN RELATIVISTIC NUCLEAR COLLISIONS

被引：44

作者：

HEINZ, U ^{[1
]}

LEE, KS ^{[1
]}

机构：

[1] CHONNAM NATL UNIV,DEPT PHYS,KWANGJU 500,SOUTH KOREA

来源：

PHYSICS LETTERS B | 1991年 / 259卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(91)90152-G

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the modification of the dilepton yield from vector mesons inside a nuclear fireball. We argue that the relative magnitude of the rho-peak in the dilepton spectrum determines the lifetime of the hadron gas phase in nuclear collisions with an accuracy of about 1 fm/c. We also find that the phi/(omega + rho) ratio measured in the dimuon channel in 200 A GeV O + U and S + U collisions points towards a rather short-lived hadronic phase in these collisions.

引用

页码：162 / 168

页数：7

共 32 条

[1] ABREU MC, 1988, Z PHYS C, V38, P117
[2] INCLUSIVE MU-PAIR PRODUCTION AT 150 GEV BY PI+- MESONS AND PROTONS
ANDERSON, KJ
HENRY, GG
MCDONALD, KT
PILCHER, JE
ROSENBERG, EI
BRANSON, JG
SANDERS, GH
SMITH, AJS
THALER, JJ
[J]. PHYSICAL REVIEW LETTERS, 1976, 37 (13) : 799 - 802
[3] THE PRODUCTION OF J/PSI IN 200 GEV-NUCLEON OXYGEN-URANIUM INTERACTIONS
BAGLIN, C
BUSSIERE, A
GUILLAUD, JP
OGREN, H
STALEY, F
BALDIT, A
CASTOR, J
DEVAUX, A
FARGEIX, J
FELGEYROLLES, X
FORCE, P
FREDJ, L
LANDAUD, G
SONDEREGGER, P
ABREU, MC
BARREIRA, GP
BORDALO, P
CASACA, A
FERRAZ, A
FERREIRA, R
GAGO, JM
GOMES, P
LOURENCO, C
MAIO, A
PERALTA, L
PIMENTA, M
RAMOS, S
VARELA, J
GERSCHEL, C
SINQUIN, A
BORENSTEIN, S
BUSSON, P
CHARLOT, C
CHAURAND, B
KLUBERG, L
ROMANA, A
SALMERON, RA
BRITZ, J
GORODETZKY, P
KRAUS, L
LINCK, I
RACCA, C
CASES, R
ALIMI, M
BEDJIDIAN, M
CONTARDO, D
DESCROIX, E
DRAPIER, O
GROSSIORD, JY
GUICHARD, A
[J]. PHYSICS LETTERS B, 1989, 220 (03) : 471 - 478
[4] BALDISSERI A, 1989, SEP P INT EUR C HIGH
[5] BALDISSERI A, 1990, THESIS LAPP ANNECY
[6] FLAVOR KINETICS IN AN EXPANDING QUARK GLUON PLASMA
BARZ, HW
FRIMAN, BL
KNOLL, J
SCHULZ, H
[J]. NUCLEAR PHYSICS A, 1988, 484 (3-4) : 661 - 684
[7] PRODUCTION OF PHI-MESON, RHO-MESON AND OMEGA-MESON IN THE HADRONIZATION OF A QUARK GLUON PLASMA
BARZ, HW
FRIMAN, BL
KNOLL, J
SCHULZ, H
[J]. PHYSICS LETTERS B, 1991, 254 (3-4) : 315 - 319
[8] BARZ HW, 1991, NUCL PHYS A, V525, pC435, DOI 10.1016/0375-9474(91)90359-E
[9] HIGHLY RELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS - THE CENTRAL RAPIDITY REGION
BJORKEN, JD
[J]. PHYSICAL REVIEW D, 1983, 27 (01): : 140 - 151
[10] BLAIZOT JP, 1991, NUCL PHYS A, V525, P1

← 1 2 3 4 →