Pelissier, C.; Alexandru, A. published the artcile< Resonance parameters of the rho-meson from asymmetrical lattices>, Quality Control of 82-73-5, the main research area is resonance parameter rho meson asym lattice QCD.
We present a lattice QCD calculation of the parameters of the ρ meson decay. The study is carried out on spatially asym. boxes using nHYP-smeared clover fermions with two mass-degenerate quark flavors. Our calculations are carried out at a pion mass mπ = 304(2) MeV on the set of lattices V = 242 × η24 × 48 with η = 1.0, 1.25, and 2.0 with lattice spacing a = 0.1255(7) fm. The resonance mass mρ = 827(3)(5) MeV and coupling constant gρππ = 6.67(42) are calculated using the P-wave scattering phase shifts. We construct a 2 × 2 correlation matrix to extract the energy of the scattering states and compute the phase shifts using the finite volume formula. By varying the degree of asymmetry, we are able to compute a set of phase shifts that are evenly distributed throughout the spectral region where the ρ decays.
Physical Review D: Particles, Fields, Gravitation, and Cosmology published new progress about Lattice QCD. 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, Quality Control of 82-73-5.
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