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${{\mathit \chi}_{{b2}}{(1P)}}$ MASS
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$9912.21 \pm0.26 \pm0.31$ MeV
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${\mathit m}_{{{\mathit \chi}_{{b2}}{(1P)}}}{\mathit m}_{{{\mathit \chi}_{{b1}}{(1P)}}}$
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$19.10 \pm0.25$ MeV (S = 1.1)
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${{\mathit \gamma}}$ ENERGY IN ${{\mathit \Upsilon}{(2S)}}$ DECAY
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$110.44 \pm0.29$ MeV (S = 1.1)
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B( ${{\mathit \chi}_{{b2}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$ ) ${\times }$ B( ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{b2}}{(1P)}}$ ) ${\times }$ B( ${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ )
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$(3.38 \pm0.16) \times 10^{-4}$
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[B( ${{\mathit \chi}_{{b2}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$ ) ${\times }$ B( ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{b2}}{(1P)}}$ )] $/$ [B( ${{\mathit \chi}_{{b1}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$ ) ${\times }$ B( ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{b1}}{(1P)}}$ )]
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$0.556 \pm0.016$
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B( ${{\mathit \chi}_{{b2}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$ ) ${\times }$ B( ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{b2}}{(1P)}}$ ) ${\times }$ B( ${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ )
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$(3.8 \pm0.5) \times 10^{-5}$
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Mode |
Fraction ($\Gamma_i$ / $\Gamma$) |
Scale Factor/ Conf. Level |
P (MeV/c) |
$\Gamma_{1}$ | ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$ | |
$(18.0\pm{1.0})\%$
| | 442 |
| $\Gamma_{2}$ | ${{\mathit D}^{0}}{{\mathit X}}$ | |
$<7.9\%$
| CL=90% | |
| $\Gamma_{3}$ | ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ | |
$(8\pm{5})\times 10^{-5}$
| | 4902 |
| $\Gamma_{4}$ | 2 ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit K}^{-}}{{\mathit K}_S^0}$ | |
$<1.0\times 10^{-4}$
| CL=90% | 4901 |
| $\Gamma_{5}$ | 2 ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit K}^{-}}{{\mathit K}_S^0}$ 2 ${{\mathit \pi}^{0}}$ | |
$(5.3\pm{2.4})\times 10^{-4}$
| | 4873 |
| $\Gamma_{6}$ | 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{0}}$ | |
$(3.5\pm{1.4})\times 10^{-4}$
| | 4931 |
| $\Gamma_{7}$ | 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ | |
$(1.1\pm{0.4})\times 10^{-4}$
| | 4888 |
| $\Gamma_{8}$ | 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ | |
$(2.1\pm{0.9})\times 10^{-4}$
| | 4872 |
| $\Gamma_{9}$ | 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$2 ${{\mathit \pi}^{0}}$ | |
$(3.9\pm{1.8})\times 10^{-4}$
| | 4855 |
| $\Gamma_{10}$ | 3 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit K}^{-}}{{\mathit K}_S^0}$ ${{\mathit \pi}^{0}}$ | |
$<5\times 10^{-4}$
| CL=90% | 4854 |
| $\Gamma_{11}$ | 3 ${{\mathit \pi}^{+}}$3 ${{\mathit \pi}^{-}}$ | |
$(7.0\pm{3.1})\times 10^{-5}$
| | 4931 |
| $\Gamma_{12}$ | 3 ${{\mathit \pi}^{+}}$3 ${{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{0}}$ | |
$(1.0\pm{0.4})\times 10^{-3}$
| | 4908 |
| $\Gamma_{13}$ | 3 ${{\mathit \pi}^{+}}$3 ${{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ | |
$<8\times 10^{-5}$
| CL=90% | 4854 |
| $\Gamma_{14}$ | 3 ${{\mathit \pi}^{+}}$3 ${{\mathit \pi}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ | |
$(3.6\pm{1.5})\times 10^{-4}$
| | 4835 |
| $\Gamma_{15}$ | 4 ${{\mathit \pi}^{+}}$4 ${{\mathit \pi}^{-}}$ | |
$(8\pm{4})\times 10^{-5}$
| | 4907 |
| $\Gamma_{16}$ | 4 ${{\mathit \pi}^{+}}$4 ${{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{0}}$ | |
$(1.8\pm{0.7})\times 10^{-3}$
| | 4877 |
| $\Gamma_{17}$ | ${{\mathit J / \psi}}{{\mathit J / \psi}}$ | |
$<4\times 10^{-5}$
| CL=90% | 3869 |
| $\Gamma_{18}$ | ${{\mathit J / \psi}}{{\mathit \psi}{(2S)}}$ | |
$<5\times 10^{-5}$
| CL=90% | 3608 |
| $\Gamma_{19}$ | ${{\mathit \psi}{(2S)}}{{\mathit \psi}{(2S)}}$ | |
$<1.6\times 10^{-5}$
| CL=90% | 3313 |
| $\Gamma_{20}$ | ${{\mathit J / \psi}{(1S)}}$ anything | |
$(1.5\pm{0.4})\times 10^{-3}$
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