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ρandK*resonances on the lattice at nearly physical quark masses andNf=2

Bali, Gunnar S. ; Collins, Sara ; Cox, Antonio ; Donald, Gordon ; Göckeler, Meinulf ; Lang, C. B. ; Schäfer, Andreas



Abstract

Working with a pion mass m(pi) approximate to 150 MeV, we study pi pi and K-pi scattering using two flavors of nonperturbatively improved Wilson fermions at a lattice spacing a approximate to 0.071 fm. Employing two lattice volumes with linear spatial extents of N-s = 48 and N-s = 64 points and moving frames, we extract the phase shifts for p-wave pi pi and K pi scattering near the rho and K* ...

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