I=3/2 $K π$ Scattering in the Nonrelativisitic Quark Potential Model

Details I=3/2 $K π$ Scattering in the Nonrelativisitic Quark Potential Model I=3/2 $K π$ Scattering in the Nonrelativisitic Quark Potential Model

1992-07-21

arxiv.org/abs/hep-ph/9207251v1

Phys.Rev. D46 (1992) 4868-4872

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages + 2 postscript figures, Revtex, MIT-CTP-2108

Scientific paper

10.1103/PhysRevD.46.4868

We study $I=3/2$ elastic $K\pi $ scattering to Born order using nonrelativistic quark wavefunctions in a constituent-exchange model. This channel is ideal for the study of nonresonant meson-meson scattering amplitudes since s-channel resonances do not contribute significantly. Standard quark model parameters yield good agreement with the measured S- and P-wave phase shifts and with PCAC calculations of the scattering length. The P-wave phase shift is especially interesting because it is nonzero solely due to $SU(3)_f$ symmetry breaking effects, and is found to be in good agreement with experiment given conventional values for the strange and nonstrange constituent quark masses.

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