Lattice 2024

1−+ Light Hybrid Decay

1 Aug 2024, 09:20

20m

Talk Hadronic and Nuclear Spectrum and Interactions Hadronic and nuclear spectrum and interactions

Speaker

Siyang Chen (Institude of High-Energy Physics)

Description

We explore the decay properties of the isovector and isoscalar $1^{-+}$ light hybrids ${\pi }_1$ and ${\eta }_1$ ${\pi }_1$ in $N_f=2$ lattice QCD at a pion mass $m_{\pi }\approx 417\mathrm{MeV}$. The McNeile and Michael method is adopted to extract the effective couplings in $N_f=2$ QCD for the decays.
The $N_f=3$ degenerate QCD result with physical mixing angle is also a partial quench result.

Presentation materials

light_hybrid_decay_lat2024.pdf