Some decay modes of the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mn>1</mn></mrow><mrow><mi>−</mi><mo>+</mo></mrow></msup></mrow></math></span> hybrid meson in QCD sum rules reexamined

Shi-Lin Zhu

doi:10.1103/PhysRevD.60.097502

Some decay modes of the $1^{- +}$ hybrid meson in QCD sum rules reexamined

Shi-Lin Zhu^*

Institute of Theoretical Physics, Academia Sinica, P.O. Box 2735, Beijing 100080, China

^*Email address: zhusl@mithras.phys.uconn.edu

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Phys. Rev. D 60, 097502 – Published 8 October, 1999

DOI: https://doi.org/10.1103/PhysRevD.60.097502

Abstract

The pionic coupling constants in the decays of the $1^{- +}$ hybrid meson are calculated. The double Borel transformation is invoked and the continuum contribution is subtracted. The decay widths of the processes $1^{- +} \to ρ π {, f}_{1} π, π γ$ are around 40, 100, 0.3 MeV, respectively. A comparison is made with previous calculations using three-point correlation functions.

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Physical Review D

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Some decay modes of the $1^{- +}$ hybrid meson in QCD sum rules reexamined

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Some decay modes of the 1−+ hybrid meson in QCD sum rules reexamined

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Some decay modes of the $1^{- +}$ hybrid meson in QCD sum rules reexamined