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arXiv · 1007.3541

Two-parton Light-cone Distribution Amplitudes of Tensor Mesons

Hai-Yang Cheng·Yuji Koike·Kwei-Chou Yang
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Abstract

We present a detailed study of the two-parton light-cone distribution amplitudes for $1\,^3P_2$ nonet tensor mesons. The asymptotic two-parton distribution amplitudes of twist-2 and twist-3 are given. The decay constants $f_T$ and $f_T^\bot$ defined by the matrices of non-local operators on the lightcone are estimated using the QCD sum rule techniques. We also study the decay constants for $f_2(1270)$ and $f_2^\prime(1525)$ based on the hypothesis of tensor meson dominance together with the data of $Γ(f_2\to ππ)$ and $Γ(f'_2\to K\bar K)$ and find that the results are in accordance with the sum rule predictions.

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Hai-Yang Cheng, Yuji Koike, Kwei-Chou Yang. 2010-07-20. Two-parton Light-cone Distribution Amplitudes of Tensor Mesons. https://doi.org/10.1103/physrevd.82.054019

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