A critical analysis on deeply bound kaonic states in nuclei

Abstract

We make a critical analysis on the theoretical calculations that lead to predictions of deeply bound kaonic states in nuclei. The model set-up, after dropping several important processes and channels, leads unavoidably to an unrealistic deep potential with a very small imaginary part. We review also the experimental results taken as reference for the claim of deeply bound kaons. We suggest that the peaks of the proton spectra come from $K^{-}$ absorption on a pair of nucleons, leaving the rest of the nucleons as spectators. Based on this conjecture we predict what would happen in other nuclei.

19 pags., 4 figs, version to be published in Phys. Rev. C

References in corpus (30)

• Chiral dynamics in the presence of bound states: kaon-nucleon interactions revisited
• Non perturbative chiral approach to s-wave \bar{K}N interactions
• Chiral Dynamics of the Two Λ(1405) States
• SU(3) Chiral Dynamics with Coupled Channels: Eta and Kaon Photoproduction
• Chiral Unitary approach to meson-meson and meson-baryon interactions and nuclear applications
• The properties of \bar{K} in the nuclear medium
• Low lying S=-1 excited baryons and chiral symmetry
• Quark mass dependence of s-wave baryon resonances
• Nuclear kaon dynamics
• $S=-1$ Meson-Baryon Unitarized Coupled Channel Chiral Perturbation Theory and the $S_{01}-$ $\Lambda$(1405) and $-\Lambda$(1670) Resonances
• Evidence for the two pole structure of the Lambda(1405) resonance
• Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings
• K${}^{-}$-proton scattering and the $\Lambda (1405)$ in dense matter
• Chiral dynamics of kaon-nucleon interactions, revisited
• Conversion of neutron stars to strange stars as the central engine of gamma-ray bursts
• Medium Modified Cross Sections, Temperature and Finite Momentum Effects for Antikaon Production in Heavy-Ion Collisions
• Photoproduction of eta-mesic 3He
• Study of chirally motivated low-energy $K^{-}$ optical potentials
• Surprises in threshold antikaon-nucleon physics
• Are eta- and omega-nuclear states bound ?
• Deeply bound levels in kaonic atoms
• Partial wave contributions to the antikaon potential at finite momentum
• $\eta$ bound states in nuclei
• Strange tribaryons as Kbar-mediated dense nuclear systems
• Widths of $\bar{K}$-nuclear deeply bound states in a dynamical model
• Microscopic study of neutrino trapping in hyperon stars
• Narrow deeply bound $K^{-}$ atomic states
• $K^{-}$ and $\bar{p}$ deeply bound atomic states
• Bounds on the bound η^3He system
• Two pion mediated scalar isoscalar NN interaction in the nuclear medium

Cited by in corpus (43)

• Effective Kbar N interaction based on chiral SU(3) dynamics
• Strangeness Production close to Threshold in Proton-Nucleus and Heavy-Ion Collisions
• The basic K nuclear cluster K- pp and its enhanced formation in the p + p -> K+ + X reaction
• Meson-baryon reactions with strangeness -1 within a chiral framework
• A critical view on the deeply bound K^- pp system
• On the History of Dibaryons and their Final Observation
• Variational calculations for K-few-nucleon systems
• $\Lambda NN$ and $\Sigma NN$ systems at threshold
• Strange mesons in nuclear matter at finite temperature
• Correlated $\Lambda d$ pairs from the $K_{stop}^{-}A\to \Lambda d{A}^{\prime }$ reaction
• Search for strange tribaryon states in the inclusive ^4He(K^{-}_{stopped}, p) reaction
• Cross-channel constraints on resonant antikaon-nucleon scattering
• Anti-strange meson-baryon interaction in hot and dense nuclear matter
• Emission spectra and invariant masses of Lambda and p in the stopped-K-NN absorption process in 4He and 6Li
• Branching ratios of mesonic and nonmesonic antikaon absorptions in nuclear medium
• K${}^{-}$ multi-nucleon absorption cross sections and branching ratios in $\Lambda$p and ${\Sigma }^0$p final states
• Critical review of [K- ppn] bound states
• Single-pole nature of Lambda (1405) and structure of K-pp
• Interplay between kaon condensation and hyperons in highly dense matter
• The properties of kaonic nuclei in relativistic mean-field theory
• Formation spectra of light kaonic nuclei by in-flight ($\bar{K},N$) reactions with chiral unitary amplitude
• Proton emission off nuclei induced by kaons in flight
• Kaon Absorption from Kaonic Atoms and Formation Spectra of Kaonic Nuclei
• Possibility of cold nuclear compression in antiproton-nucleus collisions
• Kaon-condensed hypernuclei as highly dense self-bound objects
• Hadron Physics at J-PARC
• The $\sigma K$ coupling in the chiral unitary approach and the isoscalar $\bar{K}N$, $\bar{K}A$ interaction
• Microscopic 8-quark study of the antikaon nucleon nucleon systems
• Quasifree Lambda, Sigma^0, and Sigma^- electroproduction from 1,2H, 3,4He, and carbon
• Formation of Deeply Bound Kaonic Atoms in (K^-,N) Reactions
• Latest results for the antikaon-nucleon optical potential
• Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy
• Relativistic symmetry breaking in light kaonic nuclei
• The baryon-decuplet in the chiral dynamics of Lambda-hyperons in nuclear matter
• K^- ^3He and K^+K^- interactions in the pd -> ^3He K^+K^- reaction
• Further considerations concerning claims for deeply bound kaon atoms and reply to criticisms
• Charge-conjugation asymmetry and molecular content: the $D_{s0}^{\ast }(2317{)}^{\pm }$ in matter
• The effect of Kaon Condensation on Quark-Antiquark Condensate in Dense Matter
• Nuclear bound states of antikaons, or quantized multiskyrmions?
• K- absorption in nuclei by two and three nucleons
• The (K-,p) reaction on nuclei with in-flight kaons
• Recent developments in chiral dynamics of hadrons and hadrons in a nuclear medium
• A critical analysis on deeply bound kaonic states in nuclei and the KEK experiment