26-31 July 2021
Mexico City
Mexico/General timezone
HADRON 2021 is over. Thanks for making it a success!
- hadron2021@nucleares.unam.mx
Contact information
Contribution Leading parallel
Mexico City
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Meson Spectroscopy
Decays of an exotic $1^{−+}$ hybrid meson resonance in QCD
Speakers
- Dr. Christopher THOMAS
Primary authors
- Dr. Christopher THOMAS (University of Cambridge)
Files
Abstract
I will discuss a recent calculation where for the first time we determined an exotic $J^{PC} = 1^{-+}$ hybrid meson resonance in lattice QCD. Working with SU(3) flavour symmetry, we found a narrow resonance with a large coupling to at least one axial-vector--psuedoscalar channel. A simple extrapolation to physical light-quark mass suggests a broad $\pi_1$ resonance decaying dominantly through the $b_1 \pi$ mode.
Based on arXiv:2009.10034, for the Hadron Spectrum Collaboration