6533b874fe1ef96bd12d6064

RESEARCH PRODUCT

ϒ(nl) decay into B(⁎)B¯(⁎)

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Abstract We have evaluated the decay modes of the ϒ ( 4 s ) , ϒ ( 3 d ) , ϒ ( 5 s ) , ϒ ( 6 s ) states into B B ¯ , B B ¯ ⁎ + c . c . , B ⁎ B ¯ ⁎ , B s B ¯ s , B s B ¯ s ⁎ + c . c . , B s ⁎ B ¯ s ⁎ using the P 0 3 model to hadronize the b b ¯ vector seed, fitting some parameters to the data. We observe that the ϒ ( 4 s ) state has an abnormally large amount of meson-meson components in the wave function, while the other states are largely b b ¯ . We predict branching ratios for the different decay channels which can be contrasted with experiment for the case of the ϒ ( 5 s ) state. While globally the agreement is fair, we call the attention to some disagreement that could be a warning for the existence of more elaborate components in the state.