${\boldsymbol {\boldsymbol b}}$ ${\boldsymbol {\overline{\boldsymbol b}}}$ MESONS
(including possibly non- ${\boldsymbol {\boldsymbol q}}$ ${\boldsymbol {\overline{\boldsymbol q}}}$ states)
 INSPIRE search

${{\boldsymbol Z}_{{b}}{(10610)}}$ $I^G(J^{PC})$ = $1^+(1^{+ -})$ 


was ${{\mathit X}{(10610)}}$
Properties incompatible with a ${{\mathit q}}{{\overline{\mathit q}}}$ structure (exotic state). See the review on non- ${{\mathit q}}{{\overline{\mathit q}}}$ states. Observed by BONDAR 2012 in ${{\mathit \Upsilon}{(5S)}}$ decays to ${{\mathit \Upsilon}{(nS)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ (n = 1, 2, 3) and ${{\mathit h}_{{b}}{(mP)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ (m = 1, 2). $\mathit J{}^{P} = 1{}^{+}$ is favored from angular analyses.
${{\mathit Z}_{{b}}{(10610)}^{\pm}}$ MASS   $10607.2 \pm2.0$ MeV 
${{\mathit Z}_{{b}}{(10610)}^{0}}$ MASS   $10609 \pm6$ MeV 
${{\mathit Z}_{{b}}{(10610)}^{\pm}}$ WIDTH   $18.4 \pm2.4$ MeV 
$\Gamma_{1}$ ${{\mathit \Upsilon}{(1S)}}{{\mathit \pi}^{+}}$  $(5.4^{+1.9}_{-1.5})\times 10^{-3}$ 1077
$\Gamma_{2}$ ${{\mathit \Upsilon}{(1S)}}{{\mathit \pi}^{0}}$  not seen 1077
$\Gamma_{3}$ ${{\mathit \Upsilon}{(2S)}}{{\mathit \pi}^{+}}$  $(3.6^{+1.1}_{-0.8})\%$ 551
$\Gamma_{4}$ ${{\mathit \Upsilon}{(2S)}}{{\mathit \pi}^{0}}$  seen 552
$\Gamma_{5}$ ${{\mathit \Upsilon}{(3S)}}{{\mathit \pi}^{+}}$  $(2.1^{+0.8}_{-0.6})\%$ 207
$\Gamma_{6}$ ${{\mathit \Upsilon}{(3S)}}{{\mathit \pi}^{0}}$  seen 210
$\Gamma_{7}$ ${{\mathit h}_{{b}}{(1P)}}{{\mathit \pi}^{+}}$  $(3.5^{+1.2}_{-0.9})\%$ 671
$\Gamma_{8}$ ${{\mathit h}_{{b}}{(2P)}}{{\mathit \pi}^{+}}$  $(4.7^{+1.7}_{-1.3})\%$ 313
$\Gamma_{9}$ ${{\mathit B}^{+}}{{\overline{\mathit B}}^{0}}$  not seen 505
$\Gamma_{10}$ ${{\mathit B}^{+}}{{\overline{\mathit B}}^{*0}}{+}$ ${{\mathit B}^{*+}}{{\overline{\mathit B}}^{0}}$  $(85.6^{+2.1}_{-2.9})\%$