Search
Now showing items 1-3 of 3
Coupled ππ, KK̅ scattering in P-wave and the ρ resonance from lattice QCD
(APSPhysical Review D, 2015-11-02)
We determine elastic and coupled-channel amplitudes for isospin-1 meson-meson scattering in P-wave, by calculating correlation functions using lattice QCD with light quark masses such that m_π = 236 MeV in a cubic volume ...
The resonant π+γ → π+π⁰ amplitude from Quantum Chromodynamics
(APSPhysical Review Letters, 2015-12-08)
We present the first ab initio calculation of a radiative transition of a hadronic resonance within Quantum Chromodynamics (QCD). We compute the amplitude for ππ → πγ* , as a function of the energy of the ππ pair and the ...
Resonances in coupled πK, ηK scattering from lattice QCD
(APSPhysical Review D, 2015-03-10)
Coupled-channel πK and ηK scattering amplitudes are determined by studying the finite-volume energy spectra obtained from dynamical lattice QCD calculations. Using a large basis of interpolating operators, including both ...