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- W2952483120 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 fermions with $m_{pi}=280mathrm{MeV}$ and $m_{K}=460mathrm{MeV}$. At these quark masses, the $Delta(1232)$ resonance pole is found close to the $N-pi$ threshold and a Breit-Wigner fit to the amplitude gives $g^{mathrm{BW}}_{Delta Npi}=19.0(4.7)$ in agreement with phenomenological determinations." @default.
- W2952483120 created "2019-06-27" @default.
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- W2952483120 date "2018-01-25" @default.
- W2952483120 modified "2023-10-17" @default.
- W2952483120 title "Elastic <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>I</mml:mi><mml:mo>=</mml:mo><mml:mn>3</mml:mn><mml:mo stretchy=false>/</mml:mo><mml:mn>2</mml:mn></mml:math> <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>p</mml:mi></mml:math> -wave nucleon-pion scattering amplitude and the <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi mathvariant=normal>Δ</mml:mi><mml:mo stretchy=false>(</mml:…" @default.
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- W2952483120 doi "https://doi.org/10.1103/physrevd.97.014506" @default.
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