Measurement of the mass splittings between the b(b)over-bar chi(b,J)(1P) states
We present new measurements of photon energies and branching fractions for the radiative transitions Y(2S)→γχb(J=0,1,2)(1P). The masses of the χb states are determined from the measured radiative photon energies. The ratio of mass splittings between the χb substates, r≡(MJ=2-MJ=1)/(MJ=1-MJ=0), with...
Hlavní autoři: | Edwards, K, Bellerive, A, Janicek, R, MacFarlane, D, Patel, P, Sadoff, A, Ammar, R, Baringer, P, Bean, A, Besson, D, Coppage, D, Darling, C, Davis, R, Kotov, S, Kravchenko, I, Kwak, N, Zhou, L, Anderson, S, Kubota, Y, Lee, S, O'Neill, J, Poling, R, Riehle, T, Smith, A, Alam, MS |
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Médium: | Journal article |
Jazyk: | English |
Vydáno: |
1999
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