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${\mathit {\mathit b}}$ ${\mathit {\overline{\mathit b}}}$ MESONS (including possibly non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states)

INSPIRE   JSON PDGID: M205

${{\mathit h}_{{{b}}}{(2P)}}$ $I^G(J^{PC})$ = $0^-(1^{+ -})$

Quantum numbers are quark model predictions. $\mathit C$ = $−$ established by ${{\mathit \eta}_{{{b}}}}{{\mathit \gamma}}$ decay.

${{\mathit h}_{{{b}}}{(2P)}}$ MASS   $10259.8 \pm1.2$ MeV

${{\mathit h}_{{{b}}}{(2P)}}$ DECAY MODES
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ hadrons   not seen     $\Gamma_{2}$ ${{\mathit \eta}_{{{b}}}{(1S)}}{{\mathit \gamma}}$   $(22\pm{5})\%$ 825   $\Gamma_{3}$ ${{\mathit \eta}_{{{b}}}{(2S)}}{{\mathit \gamma}}$   $(48\pm{13})\%$ 257   $\Gamma_{4}$ ${{\mathit \Upsilon}{(1S)}}{{\mathit \eta}}$   $(7.1^{+4.0}_{-3.3})\times 10^{-3}$ 559   $\Gamma_{5}$ ${{\mathit \Upsilon}{(1S)}}{{\mathit \pi}^{0}}$   $<1.8\times 10^{-3}$ CL=90% 757   $\Gamma_{6}$ ${{\mathit \gamma}}{{\mathit \chi}_{{{b0}}}{(1P)}}$   $<27\%$ CL=90% 393   $\Gamma_{7}$ ${{\mathit \gamma}}{{\mathit \chi}_{{{b1}}}{(1P)}}$   $<5.4\times 10^{-3}$ CL=90% 360   $\Gamma_{8}$ ${{\mathit \gamma}}{{\mathit \chi}_{{{b2}}}{(1P)}}$   $<1.3\%$ CL=90% 342
FOOTNOTES