Direct measurement of the J/ psi leptonic branching fraction.
D
Coffman
F
DeJongh
GP
Dubois
G
Eigen
DG
Hitlin
CG
Matthews
J
Richman
AJ
Weinstein
WJ
Wisniewski
Y
Zhu
T
Bolton
KO
Bunnell
RE
Cassell
DH
Coward
PC
Kim
J
Labs
A
Odian
D
Pitman
RH
Schindler
W
Toki
S
Wasserbaech
JJ
Drinkard
C
Gatto
CA
Heusch
WS
Lockman
HF
Sadrozinski
M
Scarlatella
TL
Schalk
A
Seiden
R
Xu
BI
Eisenstein
T
Freese
G
Gladding
JM
Izen
IE
Stockdale
B
Tripsas
U
Mallik
MZ
Wang
JS
Brown
TH
Burnett
AD
Li
R
Mir
PM
Mockett
B
Nemati
L
Parrish
H
Willutzki