PRODUCTION OF J/PSI AT LARGE X(F) IN 800 GEV/C P-COPPER AND P-BERYLLIUM COLLISIONS

被引：63

作者：

KOWITT, MS

GIDAL, G

HO, PM

LUK, KB

PRIPSTEIN, D

ISENHOWER, LD

SADLER, ME

SCHNATHORST, R

SCHWINT, R

LEDERMAN, LM

SCHUB, MH

BROWN, CN

COOPER, WE

GLASS, HD

GOUNDER, KN

MISHRA, CS

BOISSEVAIN, J

CAREY, TA

JANSEN, DM

JEPPESEN, RG

KAPUSTINSKY, JS

LANE, DW

LEITCH, MJ

LILLBERG, JW

MCGAUGHEY, PL

MOSS, JM

PENG, JC

KAPLAN, DM

LUEBKE, WR

MARTIN, VM

PRESTON, RS

SA, J

TANIKELLA, V

CHILDERS, RL

DARDEN, CW

WILSON, JR

KIANG, GC

TENG, PK

CHEN, YC

机构：

[1] UNIV CALIF BERKELEY,BERKELEY,CA 94720

[2] LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[3] ABILENE CHRISTIAN UNIV,ABILENE,TX 79699

[4] UNIV CHICAGO,CHICAGO,IL 60637

[5] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510

[6] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545

[7] NO ILLINOIS UNIV,DE KALB,IL 60115

[8] UNIV S CAROLINA,COLUMBIA,SC 29208

[9] ACAD SINICA,INST PHYS,TAIPEI 115,TAIWAN

[10] NATL CHENG KUNG UNIV,TAINAN,TAIWAN

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.72.1318

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The differential cross sections dsigma/dx(F) for J/psi produced inclusively in 800 GeV/c p-Cu and p-Be collisions have been measured in the kinematic range 0.30 less-than-or-equal-to x(F) less-than-or-equal-to 0.95 through the decay mode J/psi --> mu+ mu-. They are compared with the predictions of the semilocal duality model for several sets of parton density functions. No evidence for a suggested intrinsic charm contribution to the cross section is observed. The ratio of the differential cross sections for Cu and Be targets confirms the suppression of J/psi production in heavy nuclei at large x(F).

引用

页码：1318 / 1321

页数：4

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