Nuclear Physics B (Jun 2018)

Light-cone distribution amplitudes of light JPC = 2−− tensor mesons in QCD

  • T.M. Aliev,
  • S. Bilmis,
  • Kwei-Chou Yang

DOI
https://doi.org/10.1016/j.nuclphysb.2018.04.008
Journal volume & issue
Vol. 931, no. C
pp. 132 – 145

Abstract

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We present a study for two-quark light-cone distribution amplitudes for the 13D2 light tensor meson states with quantum number JPC=2−−. Because of the G-parity, the chiral-even two-quark light-cone distribution amplitudes of this tensor meson are antisymmetric under the interchange of momentum fractions of the quark and antiquark in the SU(3) limit, while the chiral-odd ones are symmetric. The asymptotic leading-twist LCDAs with the strange quark mass correction are shown. We estimate the relevant parameters, the decay constants fT and fT⊥, and first Gegenbauer moment a1⊥, by using the QCD sum rule method. These parameters play a central role in the investigation of B meson decaying into the 2−− tensor mesons.