Observation of χc2 Production in B Meson Decay
K. Gotow2002, Physical Review Letters
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Abstract
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We report the first observation of \( \chi_{c2} \) production in B meson decays with a branching fraction of \( (1.80^{+0.28}_{-0.23}) \times 10^{-3} \). The analysis is based on a dataset containing \( 31.9 \times 10^{6} \) BB events collected with the Belle detector at the KEKB e⁺e⁻ collider. In addition, we provide results for the branching fractions and momentum spectra of both \( \chi_{c1} \) and \( \chi_{c2} \) production, emphasizing the significance of this observation in testing theoretical models of B meson decays.
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