Coupled channel Faddeev calculations of a (Kbar-N-pi) quasibound state

Abstract

The (Kbar-N-pi) system is studied using separable interactions fitted to data available on the s-wave (Kbar-N)--(pi-Y) subsystem and the p-wave (pi-N),(pi-Y),(pi-pi) and (pi-Kbar) subsystems. Three-body (Kbar-N-pi)--(pi-Y-pi) coupled channel Faddeev equations with relativistic kinematics are solved in search for quasibound poles in the complex plane, leading to a I(JP)=1(3/2-) (Kbar-N-pi) quasibound state at M ~ (1570 +/- 10) MeV and width greater than 60 MeV near the (Kbar-N-pi) threshold. A D13 Sigma(1570) resonance of molecular structure is thus predicted.

18 pages, 4 figures, 4 tables; v3--a typo corrected in Eq.(7) where the subscripts Lambda and Sigma in v2 and in the published journal version are interchanged, with none of the results and conclusions affected

References in corpus (11)

• Extended Partial-Wave Analysis of piN Scattering Data
• Energy dependence of barKN interactions and resonance pole of strange dibaryons
• Three body resonances in two meson-one baryon systems
• K anti-K N molecule state with I=1/2 and J^P=1/2^+ studied with three-body calculation
• The $N^{\ast }(1710)$ as a resonance in the $\pi \pi N$ system
• Solution to Faddeev equations with two-body experimental amplitudes as input and application to J^P=1/2^+, S=0 baryon resonances
• anti-K anti-K N molecule state in three-body calculation
• K pi vector form factor constrained by tau ---> K pi nu_tau and K_l3 decays
• $K\Lambda (1405)$ configuration of the $K\bar{K}N$ system
• Is there a pion-Lambda-nucleon bound state?
• Coupled channels calculation of a pion-Lambda-nucleon quasibound state

Cited by in corpus (14)

• Pentaquark and Tetraquark states
• Three-body calculation of the Delta-Delta dibaryon candidate D(03) at 2.37 GeV
• Three-body model calculations of Nucleon-Delta and Delta-Delta dibaryon resonances
• The pion-nucleon $\sigma$ term from pionic atoms
• $NDK$, $\bar{K}DN$ and $ND\bar{D}$ molecules
• Hadron spectroscopy from strangeness to charm and beauty
• $\Sigma$ Resonances from $K^{-}N\to \pi \Lambda$ reactions with the center of mass energy from 1550 to 1676 MeV
• Separable Representation of Phenomenological Optical Potentials of Woods-Saxon Type
• Relativistic three-body calculations of a Y=1, I=3/2, JP=2+ pi-Lambda-N -- pi-Sigma-N dibaryon
• Pion-assisted charmed dibaryon candidate
• States of $\rho B^{\ast }{\bar{B}}^{\ast }$ with $J=3$ within the Fixed Center Approximation to Faddeev equations
• Separable Representation of Energy-Dependent Optical Potentials
• Three-body hadron systems with strangeness
• Separable Potentials for (d,p) Reaction Calculations