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- W2068922106 abstract "We apply a quark interchange model to spin-dependent and exotic meson-meson scattering. The model includes the complete set of standard quark model forces, including OGE spin-orbit and tensor and scalar confinement spin-orbit. Scattering amplitudes derived assuming SHO and Coulomb plus linear plus hyperfine meson wavefunctions are compared. In I=2 pi pi we find approximate agreement with the S-wave phase shift from threshold to 1.5 GeV, where we predict an extremum that is supported by the data. Near threshold we find rapid energy dependence that may reconcile theoretical estimates of small scattering lengths with experimental indications of larger ones based on extrapolation of measurements at moderate kpi^2. In PsV scattering we find that the quark-quark L*S and T forces map into L*S and T meson-meson interactions, and the P-wave L*S force is large. Finally we consider scattering in J^PC-exotic channels, and note that some of the Deck effect mechanisms suggested as possible nonresonant origins of the pi_1(1400) signal are not viable in this model." @default.
- W2068922106 created "2016-06-24" @default.
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- W2068922106 date "2001-01-08" @default.
- W2068922106 modified "2023-10-12" @default.
- W2068922106 title "Meson-meson scattering in the quark model: Spin dependence and exotic channels" @default.
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- W2068922106 doi "https://doi.org/10.1103/physrevc.63.025204" @default.
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