Observation of a fourth upsilon state in e+e- annihilations

D. Andrews, K. Berkelman, R. Cabenda, D. G. Cassel, J. W. DeWire, R. Ehrlich, T. Ferguson, T. Gentile, M. G.D. Gilchriese, B. Gittelman, D. L. Hartill, D. Herrup, M. Herzlinger, D. L. Kreinick, N. B. Mistry, E. Nordberg, R. Perchonok, R. Plunkett, K. A. Shinsky, R. H. SiemannA. Silverman, P. C. Stein, S. Stone, R. Talman, H. G. Thonemann, D. Weber, C. Bebek, J. Haggerty, J. M. Izen, W. A. Loomis, F. M. Pipkin, J. Rohlf, W. Tanenbaum, Richard Wilson, A. J. Sadoff, D. L. Bridges, K. Chadwick, P. Ganci, H. Kagan, R. Kass, F. Lobkowicz, A. Melissinos, S. L. Olsen, R. Poling, C. Rosenfeld, G. Rucinski, E. H. Thorndike, G. Warren, D. Bechis, J. J. Mueller, D. Potter, F. Sannes, P. Skubic, R. Stone, A. Brody, A. Chen, M. Goldberg, N. Horwitz, J. Kandaswamy, H. Kooy, P. Lariccia, G. C. Moneti, M. S. Alam, S. E. Csorna, R. S. Panvini, J. S. Poucher

研究成果: 雜誌貢獻期刊論文同行評審

112 引文 斯高帕斯(Scopus)

摘要

A fourth state in the upsilon energy region has been seen in e+e- collisions at the Cornell Electron Storage Ring. A resonance is observed with a mass 1112+5 MeV above the lowest upsilon state. The 9.6-MeV rms width is greater than the 4.6-MeV energy resolution of the e+e- beams. The observed characteristics of the new state make it a likely candidate for the 4S3 state of the bb» system, lying above the threshold for the production of B mesons.

原文???core.languages.en_GB???
頁(從 - 到)219-221
頁數3
期刊Physical Review Letters
45
發行號4
DOIs
出版狀態已出版 - 1980

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