Observation of the LowestP-Wavebb¯Bound States

gamma..+1/sup 3/P/sub J/(bb-bar) and 1/sup 3/P/sub j/(bb-bar)..--> gamma..+1/sup 3/S/sub 1/(bb-bar) is reported. The photons are observed as narrow enhancements in the inclusive photon spectrum from UPSILON' decays. The center of gravity of the /sup 3/P/sub J/ states (chi/sub b/), the fine-structure splitting, and the branching ratios for the two transitions are given. -->
ISSN: 0031-9007
DOI: 10.1103/physrevlett.51.160
Přístupová URL adresa: https://explore.openaire.eu/search/publication?articleId=doi_________::8cb16036740474a929ba7a4edd077343
https://doi.org/10.1103/physrevlett.51.160
Rights: CLOSED
Přírůstkové číslo: edsair.doi...........8cb16036740474a929ba7a4edd077343
Autor: Paolo Franzini, R. D. Schamberger, W. Metcalf, L. J. Spencer, G. Levman, P. M. Tuts, F. Pauss, R. L. Imlay, G. Eigen, Hans J. Vogel, E. Rice, K. Han, V. Sreedhar, J. E. Horstkotte, Dong-Chul Son, E. Lorenz, C. Klopfenstein, H. Dietl, T. Zhao, M. Sivertz, Juliet Lee-Franzini, S. W. Herb, S. Youssef, G. Mageras
Rok vydání: 1983
Předmět:
Zdroj: Physical Review Letters. 51:160-163
ISSN: 0031-9007
DOI: 10.1103/physrevlett.51.160
Popis: In a continuing study of the spectroscopy of the bb-bar bound quark systems the discovery of the lowest P-wave bound states by observation of photons from the decays 2/sup 3/S/sub 1/(bb-bar)..--> gamma..+1/sup 3/P/sub J/(bb-bar) and 1/sup 3/P/sub j/(bb-bar)..--> gamma..+1/sup 3/S/sub 1/(bb-bar) is reported. The photons are observed as narrow enhancements in the inclusive photon spectrum from UPSILON' decays. The center of gravity of the /sup 3/P/sub J/ states (chi/sub b/), the fine-structure splitting, and the branching ratios for the two transitions are given.
Databáze: OpenAIRE
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