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Determination of $χ_b$ spin in the decays $χ_{b0,2}\toψψ$ and $χ_{b0,2}\to\JP\JP\to 2(μ^+μ^-)$

A. V. Luchinsky
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Abstract

The decays $χ_{b0,2}\toψψ$ and $χ_{b0,2}\toψψ\to2(μ^+μ^-)$ are considered. It is shown that with the help of $ψ$-meson angular distributions and the distributions by final muon kinematical variables it is possible to determine the spin of the decaying $χ_b$-meson. These distributions can also give an additional information about $ψ$-meson wave functions.

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A. V. Luchinsky. 2006-04-14. Determination of $χ_b$ spin in the decays $χ_{b0,2}\toψψ$ and $χ_{b0,2}\to\JP\JP\to 2(μ^+μ^-)$. https://arxiv.org/abs/hep-ph/0604129

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