Author:
Zou Zuoheng,Meng Yu,Liu Chuan
Abstract
Abstract
We perform a lattice QCD calculation of the
decay width using a model-independent method that does not require the momentum extrapolation of corresponding off-shell form factors. The simulation is performed on ensembles of
twisted mass lattice QCD gauge configurations with three different lattice spacings. After the continuum extrapolation, the decay width is obtained to be
. Regardless of this large statistical error, our result is compatible with the experimental results within 1.3σ. Potential improvements of the lattice calculation in the future are also discussed.
Funder
Sponsoring Consortium for Open Access Publishing in Particle Physics
CAS Interdisciplinary Innovation Team
National Natural Science Foundation of China
State Key Laboratory of Nuclear Physics and Technology
Subject
Astronomy and Astrophysics,Instrumentation,Nuclear and High Energy Physics
Cited by
2 articles.
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