Results from the bates 12C parity experiment

Paul A Souder, J. Bellanca, G. D. Cates, G. W. Dodson, K. A. Dow, M. Farkhondeh, R. Holmes, V. W. Hughes, T. J. Gay, K. Isakovich, D. H. Kim, S. Kowalski, K. S. Kumar, M. S. Lubell, R. Michaels, J. S. Patch, H. R. Schaefer, M. E. Schulze, Richard Wilson

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2 Scopus citations


We report the results of an experiment measuring the the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from 12C nuclei. We obtain Aexp = 0.60 ± 0.14 ± 0.02 ppm. The first error is statistical and the second is systematic. Using our measured beam polarization of 0.37 ± 0.02, we compute the isoscalar vector hadronic coupling constant γ to be 0.136 ± 0.032 ± 0.009. This agrees with the tree level Standard Model prediction of γ = 0.155.

Original languageEnglish (US)
Pages (from-to)695-700
Number of pages6
JournalNuclear Physics, Section A
Issue numberC
StatePublished - 1991


ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Souder, P. A., Bellanca, J., Cates, G. D., Dodson, G. W., Dow, K. A., Farkhondeh, M., Holmes, R., Hughes, V. W., Gay, T. J., Isakovich, K., Kim, D. H., Kowalski, S., Kumar, K. S., Lubell, M. S., Michaels, R., Patch, J. S., Schaefer, H. R., Schulze, M. E., & Wilson, R. (1991). Results from the bates 12C parity experiment. Nuclear Physics, Section A, 527(C), 695-700.