Title of article
Chiral unitary approach to the πN∗N∗ , ηN∗N∗ couplings for the N∗(1535) resonance Original Research Article
Author/Authors
J.C. Nacher، نويسنده , , A. Parre?o، نويسنده , , E. Oset، نويسنده , , A. Ramos، نويسنده , , A. Hosaka and K. Seki، نويسنده , , M. Oka، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
25
From page
187
To page
211
Abstract
Using a chiral unitary model in which the negative parity nucleon resonance N∗≡N∗(1535) is generated dynamically by means of the Bethe–Salpeter equation with coupled meson–baryon channels in the S=0 sector, we have obtained the π0N∗N∗ and ηN∗N∗ couplings. The π0N∗N∗ coupling has smaller strength but the same sign as the π0NN coupling. This rules out the mirror assignment of chiral symmetry where the ground state nucleon N and the negative parity resonance N∗ are envisaged as chiral partners in the baryon sector.
Journal title
Nuclear physics A
Serial Year
2000
Journal title
Nuclear physics A
Record number
1192192
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