Production ofJ/ψ at largexFin 800 GeV/cp-copper andp-beryllium collisions

Authors :: James R. Wilson
R. S. Preston
V. M. Martin
J. Sa
M. H. Schub
W. E. Cooper
Daniel M. Kaplan
D. W. Lane
J. G. Boissevain
Kam Biu Luk
Pei-Ming Ho
R. Childers
J. S. Kapustinsky
H. Glass
M. S. Kowitt
M. J. Leitch
G. Gidal
T. A. Carey
C. W. Darden
Josh Moss
R. Schwindt
Leon M. Lederman
K. Gounder
P. K. Teng
W. Luebke
P. L. McGaughey
D. Pripstein
R. Schnathorst
J. W. Lillberg
D. M. Jansen
C. N. Brown
L. D. Isenhower
Yi-Chun Chen
Jen-Chieh Peng
C. S. Mishra
R. G. Jeppesen
G. C. Kiang
M. E. Sadler
V. Tanikella
Source :: Physical Review Letters. 72:1318-1321
Publication Year :: 1994
Publisher :: American Physical Society (APS), 1994.
Abstract: The differential cross sections do/dxF for J/G produced inclusively in 800 GeV/c p-Cn and pBe collisions have been measured in the kinematic range 0.30 5 IF < 0.95 through the decay mode J/G + p+p-. 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/$ production in heavy nuclei at large ZF.