scholarly journals Light meson decays at BESIII

2019 ◽  
Vol 199 ◽  
pp. 01023
Author(s):  
Wencheng Yan
Keyword(s):  
Perturbation Theory ◽  
Symmetry Breaking ◽  
Chiral Perturbation Theory ◽  
Radiative Decay ◽  
Light Meson ◽  
Chiral Perturbation ◽  
Meson Decays ◽  
Scalar Mesons

The BESIII experiment has accumulated the world’s largest data samples of 1.3 billion J/ψ events and 0.45 billion ψ(3686) events, which provide a unique opportunity to investigate light meson decays. The η and η′ decays are sensitive tools for investigations of π − π and η − π interactions, symmetry breaking, and serve as a test of chiral perturbation theory. In recent years considerable results on η and η′ decays were achieved at the BESIII experiment. In this proceeding, we present the significant progresses on amplitude analyses of Dalitz decays η' → 3π,η' → ηππ, and radiative decay η' → γπ+π−, η' → γγπ0. Additionally, the $a_0^0\left( {980} \right) - {f_0}\left( {980} \right)$ mixing is an important probe to the nature of those two lightest scalar mesons. The first observation of $a_0^0\left( {980} \right) - {f_0}\left( {980} \right)$ mixing is also presented, which will help to improve the understanding of the nature of $a_0^0\left( {980} \right)$ and f0(980).

scholarly journals Light Meson Decays at BESIII

2017 ◽  
Vol 142 ◽  
pp. 01014
Author(s):  
Shuangshi Fang
Keyword(s):  
Light Meson ◽  
Meson Decays

scholarly journals Light meson decays at BESIII

2019 ◽  
Author(s):  
Guofa Xu ◽  
Keyword(s):  
Light Meson ◽  
Meson Decays

scholarly journals Light meson decays at BESIII

2021 ◽  
Author(s):  
Isabella Garzia ◽  
Keyword(s):  
Light Meson ◽  
Meson Decays
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