Observation of three upsilon states
Document Type
Article
Publication Date
1-1-1980
Abstract
Three narrow resonances have been observed in e+e- annihilation into hadrons at total energies between 9.4 and 10.4 GeV. Measurements of mass spacing and ratios of lepton pair widths support the interpretation of these " " states as the lowest triplet-S levels of the bb̄ quark-antiquark system. © 1980 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review Letters
First Page
1108
Last Page
1111
Recommended Citation
Andrews, D., Berkelman, K., Billing, M., Cabenda, R., Cassel, D., DeWire, J., Ehrlich, R., Ferguson, T., Gentile, T., Gibbard, B., Gilchriese, M., Gittelman, B., Hartill, D., Herrup, D., Herzlinger, M., Kreinick, D., Larson, D., Mistry, N., Nordberg, E., Peggs, S., Perchonok, R., Plunkett, R., Seeman, J., Shinsky, K., Siemann, R., Silverman, A., Stein, P., Stone, S., Talman, R., Thonemann, H., Weber, D., Bebek, C., & Haggerty, J. (1980). Observation of three upsilon states. Physical Review Letters, 44 (17), 1108-1111. https://doi.org/10.1103/PhysRevLett.44.1108