Title

Measurements of R for e+e- annihilation at the KEK collider TRISTAN

Authors

T. Kumita, University of Rochester
H. Sagawa, High Energy Accelerator Research Organization, Tsukuba
P. Auchincloss, University of Rochester
D. Blanis, University of Rochester
A. Bodek, University of Rochester
H. Budd, University of Rochester
S. Eno, University of Rochester
C. A. Fry, University of Rochester
H. Harada, University of Rochester
Y. H. Ho, University of Rochester
Y. K. Kim, University of Rochester
T. Mori, University of Rochester
S. L. Olsen, University of Rochester
N. M. Shaw, University of Rochester
A. Sill, University of Rochester
E. H. Thorndike, University of Rochester
K. Ueno, University of Rochester
H. W. Zheng, University of Rochester
K. Abe, High Energy Accelerator Research Organization, Tsukuba
Y. Fujii, High Energy Accelerator Research Organization, Tsukuba
Y. Higashi, High Energy Accelerator Research Organization, Tsukuba
S. K. Kim, High Energy Accelerator Research Organization, Tsukuba
Y. Kurihara, High Energy Accelerator Research Organization, Tsukuba
A. Maki, High Energy Accelerator Research Organization, Tsukuba
T. Nozaki, High Energy Accelerator Research Organization, Tsukuba
T. Omori, High Energy Accelerator Research Organization, Tsukuba
Y. Sakai, High Energy Accelerator Research Organization, Tsukuba
Y. Sugimoto, High Energy Accelerator Research Organization, Tsukuba
Y. Takaiwa, High Energy Accelerator Research Organization, Tsukuba
S. Terada, High Energy Accelerator Research Organization, Tsukuba
R. Walker, University of Rochester
R. Imlay, Louisiana State University
P. Kirk, Louisiana State University

Document Type

Article

Publication Date

1-1-1990

Abstract

The ratio R of the total cross section for e+e- annihilation into hadrons to the lowest-order QED cross section for e+e-+- has been measured for center-of-mass energies ranging from 50 to 61.4 GeV. If we allow for an overall shift of 4.9%, about 1.5 times our estimated normalization error, the results are consistent with the standard-model predictions. © 1990 The American Physical Society.

Publication Source (Journal or Book title)

Physical Review D

First Page

1339

Last Page

1349

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