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Observation of the Lowest<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi></mml:math>-Wave<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>b</mml:mi><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mi>¯</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:mrow></mml:math>Bound States

C. Klopfenstein,J. E. Horstkotte,J. Lee-Franzini,R. D. Schamberger,M. Sivertz,L. J. Spencer,Michael Tuts,P. Franzini,Kunlin Han,Eugene F. Rice,D. Son,S. Youssef,T. Zhao,S. W. Herb,R. Imlay,G. Levman,W. Metcalf,V. Sreedhar,H. Dietl,G. Eigen,E. Lorenz,G. Mageras,Felicitas Pauss,H. Vogel

Physics

Particle physics

Spectroscopy

1983

In a continuing study of the spectroscopy of the $b\overline{b}$ bound quark systems the discovery of the lowest $P$-wave bound states by observation of photons from the decays $2^{3}S_{1}(b\overline{b})\ensuremath{\rightarrow}\ensuremath{\gamma}+1^{3}P_{J}(b\overline{b})$ and $1^{3}P_{J}(b\overline{b})\ensuremath{\rightarrow}\ensuremath{\gamma}+1^{3}S_{1}(b\overline{b})$ is reported. The photons are observed as narrow enhancements in the inclusive photon spectrum from ${\ensuremath{\Upsilon}}^{\ensuremath{'}}$ decays. The center of gravity of the $^{3}P_{J}$ states (${\ensuremath{\chi}}_{b}$), the fine-structure splitting, and the branching ratios for the two transitions are given.

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“Observation of the Lowest<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi></mml:math>-Wave<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>b</mml:mi><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mi>¯</mml:mi></mml:mrow></mml:mover></mml:mrow></mml:mrow></mml:math>Bound States” is a paper by C. Klopfenstein J. E. Horstkotte J. Lee-Franzini R. D. Schamberger M. Sivertz L. J. Spencer Michael Tuts P. Franzini Kunlin Han Eugene F. Rice D. Son S. Youssef T. Zhao S. W. Herb R. Imlay G. Levman W. Metcalf V. Sreedhar H. Dietl G. Eigen E. Lorenz G. Mageras Felicitas Pauss H. Vogel published in 1983. It has an Open Access status of “closed”. You can read and download a PDF Full Text of this paper here.