Effective K̄N interaction and role of chiral symmetry
نویسنده
چکیده
We study the consequence of chiral SU(3) symmetry in the kaon-nucleon phe-nomenology, by deriving the effective single-channel ¯ KN potential. It turns out that the πΣ interaction is strongly attractive and plays an important role for the structure of the Λ(1405) resonance. We discuss the implication of effective potential for the few-body kaonic nuclei.
منابع مشابه
Effective K̄N interaction with strong πΣ dynamics constrained by chiral SU(3) symmetry
We derive a single-channel effective K̄N interaction from chiral SU(3) coupledchannel dynamics, emphasizing the important role of the πΣ channel and the structure of the Λ(1405) resonance. The chiral low energy theorem requires strongly attractive interaction not only in the K̄N channel but also in the πΣ channel. As a consequence of the strong πΣ dynamics, the equivalent potential in single K̄N c...
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We investigate the structure of the Λ(1405) resonance and K̄N phenomenology in the perspective of chiral SU(3) dynamics. Utilizing the chiral coupled-channel approach which well describes the K̄N scattering observable, we perform three different analyses to clarify the structure of the Λ(1405) resonance. The results consistently indicate the meson-baryon molecule picture of the Λ(1405). We argue ...
متن کاملhyodo˙chiral07˙final Modern Physics Letters A c ○ World Scientific Publishing Company
We discuss several aspects of the Λ(1405) resonance in relation to the recent theoretical developments in chiral dynamics. We derive an effective single-channel K̄N interaction based on chiral SU(3) coupled-channel approach, emphasizing the important role of the πΣ channel and the structure of the Λ(1405) in K̄N phenomenology. In order to clarify the structure of the resonance, we study the behav...
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We discuss several aspects of the Λ(1405) resonance in relation to the recent theoretical developments in chiral dynamics. We derive an effective single-channel K̄N interaction based on chiral SU(3) coupled-channel approach, emphasizing the important role of the πΣ channel and the structure of the Λ(1405) in K̄N phenomenology. In order to clarify the structure of the resonance, we study the behav...
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