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- W2953244345 abstract "We extend our study of the $Kpi$ system to moving frames and present an exploratory extraction of the masses and widths for the $K^*$ resonances by simulating $Kpi$ scattering in p-wave with $I=1/2$ on the lattice. Using $Kpi$ systems with non-vanishing total momenta allows the extraction of phase shifts at several values of $Kpi$ relative momenta. A Breit-Wigner fit of the phase renders a $K^*(892)$ resonance mass and $K^*to K pi $ coupling compatible with the experimental numbers. We also determine the $K^*(1410)$ mass assuming the experimental $K^*(1410)$ width. We contrast the resonant $I=1/2$ channel with the repulsive non-resonant $I=3/2$ channel, where the phase is found to be negative and small, in agreement with experiment." @default.
- W2953244345 created "2019-06-27" @default.
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- W2953244345 date "2013-10-18" @default.
- W2953244345 modified "2023-09-27" @default.
- W2953244345 title "K pi scattering in moving frames" @default.
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- W2953244345 doi "https://doi.org/10.48550/arxiv.1310.4958" @default.
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