Measurements of R for e+e- annihilation at the KEK collider TRISTAN
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
Recommended Citation
Kumita, T., Sagawa, H., Auchincloss, P., Blanis, D., Bodek, A., Budd, H., Eno, S., Fry, C., Harada, H., Ho, Y., Kim, Y., Mori, T., Olsen, S., Shaw, N., Sill, A., Thorndike, E., Ueno, K., Zheng, H., Abe, K., Fujii, Y., Higashi, Y., Kim, S., Kurihara, Y., Maki, A., Nozaki, T., Omori, T., Sakai, Y., Sugimoto, Y., Takaiwa, Y., Terada, S., Walker, R., Imlay, R., & Kirk, P. (1990). Measurements of R for e+e- annihilation at the KEK collider TRISTAN. Physical Review D, 42 (5), 1339-1349. https://doi.org/10.1103/PhysRevD.42.1339