Chiral Dynamics of Low-Energy Kaon-Baryon Interactions with Explicit Resonance

Abstract

The processes involving low energy $\bar{K}N$ and $Y\pi$ interactions (where $Y=\Sigma$ or $\Lambda$) are studied in the framework of heavy baryon chiral perturbation theory with the $\Lambda$(1405) resonance appearing as an independent field. The leading and next-to-leading terms in the chiral expansion are taken into account. We show that an approach which explicitly includes the $\Lambda$(1405) resonance as an elementary quantum field gives reasonable descriptions of both the threshold branching ratios and the energy dependence of total cross sections.

16 pages, 6 figures

References in corpus (3)

• Non perturbative chiral approach to s-wave \bar{K}N interactions
• A New Expansion for Nucleon-Nucleon Interactions
• The potential of effective field theory in NN scattering

Cited by in corpus (10)

• Dynamically generated 1^+ heavy mesons
• Origin of resonances in the chiral unitary approach
• The s-wave charmed baryon resonances from a coupled-channel approach with heavy quark symmetry
• Hidden charm N and Delta resonances with heavy-quark symmetry
• Antikaon production in A+A collisions at SIS energies within an off-shell G-matrix approach
• Odd parity bottom-flavored baryon resonances
• The properties of D and D* mesons in the nuclear medium
• Negative Kaons in Dense Baryonic Matter
• Information on the structure of the a1 from tau decay
• Lambda(1405) as a Resonance in the Baryon-Meson Scattering Coupled to the q^3 State in a Quark Model