Measurement of the total cross section for hadronic production by e(+)e(-) annihilation at energies between 2.6-5 GeV
Using the upgraded Beijing Spectrometer, we have measured the total cross section for e(+)e(-) annihilation into hadronic final states at center-of-mass energies of 2.6, 3.2, 3.4, 3.55, 4.6, and 5.0 GeV. Values of R, sigma(e(+)e(-)-->hadrons)/sigma(e(+)e(-)-->&mgr;(+)&mgr;(-)), are determined.
Tong
GL
Institute of High Energy Physics, Beijing 100039, People's Republic of China.
Varner
GS
Wang
F
Wang
LS
Wang
LZ
Wang
M
Wang
P
Wang
PL
Wang
SM
Wang
TJ
Wang
YY
Wei
CL
Wu
N
Wu
YG
Xi
DM
Xia
XM
Xie
PP
Xie
Y
Xie
YH
Xu
GF
Xue
ST
Yan
J
Yan
WG
Yang
CM
Yang
CY
Yang
HX