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- W3140870005 abstract "A set of Yukawa coupling constants needed in analytic calculations of pseudoscalar meson-baryon amplitudes (including exchange of resonances, vector mesons and baryons) is presented. Since, in such calculations, the existence of poles is very sensitive to the values of the crossed-channel couplings, one needs to improve on exact unitary symmetry predictions, which, as is well known, give inaccurate ratios for a number of already known parameters (e.g. gK'K~/gprcr:, gY~A/gY]~)2 and g=_.~-/g~*o~r:). The coupling constants are here calculated by taking into account firstorder S U 3 violations, as already suggested by Muraskin and Glashow. The universality conditions of Sakurai are imposed on vector-meson couplings, which drastically reduces the number of parameters. The results are compared with the scanty experimental data, which, however, can provide tests of the first-order violation hypothesis." @default.
- W3140870005 created "2021-04-13" @default.
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- W3140870005 date "2007-01-01" @default.
- W3140870005 modified "2023-09-27" @default.
- W3140870005 title "Coupling Constants in Broken Unitary Symmetry" @default.
- W3140870005 hasPublicationYear "2007" @default.
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