Non-perturbative chiral approach to K(-)p ->gamma Y reactions
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Non-perturbative chiral approach to K(-)p ->gamma Y reactions

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Non-perturbative chiral approach to K(-)p ->gamma Y reactions

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Lee, Tsung-Shung Harry; Oller Berber, José Antonio; Oset Báguena, Eulogio Perfil; Ramos Gómez, Àngels
This document is a artículoDate1998
A recently developed nonperturbative chiral approach to describe the S=-1 meson-baryon reactions has been extended to investigate the near threshold K−p→γΛ,γΣ0 reactions. With the parameters governed by chiral SU(3) symmetry, we show that the predicted branching ratios ΓK−p→γΛ/ΓK−p→all and ΓK−p→γΣ0/ΓK−p→all are close to the experimental values. The coupling with the η channels, which was shown to be important in the S=−1 meson-baryon reactions, is also found to be significant here. Our results are consistent with the interpretation of the Λ(1405) as a quasi-bound meson-baryon state as found in other similar chiral approaches.

    Lee, Tsung-Shung Harry Oller Berber, José Antonio Oset Báguena, Eulogio Ramos Gómez, Àngels 1998 Non-perturbative chiral approach to K(-)p ->gamma Y reactions Nuclear Physics A 643 4 402 414
http://dx.doi.org/10.1016/S0375-9474(98)00581-8
distribuido bajo licencia Creative Commons de Reconocimiento-NoComercial 3.0 No adaptada

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