η in the nuclear medium within a chiral unitary approach
نویسندگان
چکیده
منابع مشابه
Decays of η and η ′ within a chiral unitary approach
Decays of η and η ′ within a chiral unitary approach Various decays of η and η ′ are investigated within the framework of U(3) chiral effective field theory in combination with a relativistic coupled-channels approach. Final state interactions are included by deriving sand p-wave interaction kernels for meson-meson scattering from the chiral effective Lagrangian and iterating them in a Bethe-Sa...
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Laura Tolós1,∗), Angels Ramos2,∗∗) and Eulogio Oset3,∗∗∗) 1 FIAS, J.W. Goethe-Universität, Max-von-Laue 1, 60438 Frankfurt (M), Germany 2Departament d’Estructura i Constituents de la Matèria, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain 3 Departamento de F́ısica Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Ap. Correos 2208...
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We study the η′N interaction within a chiral unitary approach which includes πN , ηN and related pseudoscalar meson-baryon coupled channels. Since the SU(3) singlet does not contribute to the standard interaction and the η′ is mostly a singlet, the resulting scattering amplitude is very small and inconsistent with experimental estimations of the η′N scattering length. The additional considerati...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2002
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(02)01167-3