Basis light-front quantization for a chiral nucleon-pion Lagrangian
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DOI: 10.1103/physrevc.101.035202
Abstract: We present the first application of the Basis Light-Front Quantization method to a simple chiral model of the nucleon-pion system as a relativistic bound state for the physical proton. The light-front mass-squared matrix of the… read more here.
Keywords: nucleon pion; pion; light front; basis light ... See more keywords
Elastic I=3 /2 p -wave nucleon-pion scattering amplitude and the Δ (1232) resonance from Nf=2+1 lattice QCD
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DOI: 10.1103/physrevd.97.014506
Abstract: We present the first direct determination of meson-baryon resonance parameters from a scattering amplitude calculated using lattice QCD. In particular, we calculate the elastic $I=3/2$, $p$-wave nucleon-pion amplitude on a single ensemble of $N_{\mathrm{f}}=2+1$ Wilson-clover… read more here.
Keywords: elastic wave; resonance; scattering amplitude; lattice qcd ... See more keywords
Impact of final state interactions on neutrino-nucleon pion production cross sections extracted from neutrino-deuteron reaction data
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DOI: 10.1103/physrevd.99.031301
Abstract: The current and near-future neutrino oscillation experiments require significantly improved neutrino-nucleus reaction models. Neutrino-nucleon pion production data play a crucial role to validate corresponding elementary amplitudes that go into such neutrino-nucleus models. Thus the currently… read more here.
Keywords: nucleon pion; pion production; neutrino deuteron; reaction ... See more keywords
Chiral perturbation theory and nucleon–pion-state contaminations in lattice QCD
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DOI: 10.1142/s0217751x17300113
Abstract: Multiparticle states with additional pions are expected to be a non-negligible source of excited-state contamination in lattice simulations at the physical point. It is shown that baryon chiral per... read more here.
Keywords: state; perturbation theory; theory nucleon; nucleon pion ... See more keywords