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Measurements ofRfore+e−annihilation at the KEK collider TRISTAN
- Source :
- Physical Review D. 42:1339-1349
- Publication Year :
- 1990
- Publisher :
- American Physical Society (APS), 1990.
-
Abstract
- The ratio {ital R} of the total cross section for {ital e}{sup +}{ital e}{sup {minus}} annihilation into hadrons to the lowest-order QED cross section for {ital e}{sup +}{ital e}{sup {minus}}{r arrow}{mu}{sup +}{mu}{sup {minus}} has been measured for center-of-mass energies ranging from 50 to 61.4 GeV. If we allow for an overall shift of {minus}4.9%, about 1.5 times our estimated normalization error, the results are consistent with the standard-model predictions.
Details
- ISSN :
- 05562821
- Volume :
- 42
- Database :
- OpenAIRE
- Journal :
- Physical Review D
- Accession number :
- edsair.doi...........2e2f7688e14750033ae8f5823f364956