Constraints on the chiral unitary $\bar{K}N$ amplitude from $\pi \Sigma K^{+}$ photoproduction data

Abstract

A chiral unitary approach for antikaon-nucleon scattering in on-shell factorization is studied. We find multiple sets of parameters for which the model describes all existing hadronic data similarly well. We confirm the two-pole structure of the $\Lambda (1405)$. The narrow $\Lambda (1405)$ pole appears at comparable positions in the complex energy plane, whereas the location of the broad pole suffers from a large uncertainty. In the second step, we use a simple model for photoproduction of $K^{+}\pi \Sigma$ off the proton and confront it with the experimental data from the CLAS collaboration. It is found that only a few of the hadronic solutions allow for a consistent description of the CLAS data within the assumed reaction mechanism.

arXiv commentVersion accepted for publication in Eur. Phys. A, discussion of results extended

References in corpus (22)

• Chiral dynamics in the presence of bound states: kaon-nucleon interactions revisited
• Chiral Dynamics of the Two Λ(1405) States
• A New Measurement of Kaonic Hydrogen X rays
• The nature of the Lambda(1405) resonance in chiral dynamics
• Chiral SU(3) theory of antikaon-nucleon interactions with improved threshold constraints
• K^- p scattering length from scattering experiments
• Meson-baryon reactions with strangeness -1 within a chiral framework
• Spectrum and decays of kaonic hydrogen
• Improved constraints on chiral SU(3) dynamics from kaonic hydrogen
• On the Strangeness -1 S-wave Meson-Baryon Scattering
• Chiral dynamics of the S11(1535) and S11(1650) resonances revisited
• Measurement of the Sigma pi photoproduction line shapes near the Lambda(1405)
• New insights into antikaon-nucleon scattering and the structure of the Lambda(1405)
• Lineshape of the Lambda(1405) Hyperon Measured Through its Sigma0 pion0 Decay
• Chiral extrapolations of baryon masses for unquenched three-flavor lattice simulations
• Baryonic resonances close to the Kbar-N threshold: the case of Lambda(1405) in pp collisions
• Photocouplings at the Pole from Pion Photoproduction
• On the isospin 0 and 1 resonances from $\pi \Sigma$ photoproduction data
• A gauge invariant chiral unitary framework for kaon photo- and electroproduction on the proton
• Lambda(1405) poles obtained from pi0-Sigma0 photoproduction data
• Spin and parity measurement of the Lambda(1405) baryon
• Pion photoproduction off the proton in a gauge-invariant chiral unitary framework

Cited by in corpus (93)

• Hadronic molecules
• Threshold cusps and triangle singularities in hadronic reactions
• Strangeness in Nuclei and Neutron Stars
• Weak decays of heavy hadrons into dynamically generated resonances
• Meson-nucleus potentials and the search for meson-nucleus bound states
• Scattering studies with low-energy kaon-proton femtoscopy in proton-proton collisions at the LHC
• Looking for a hidden-charm pentaquark state with strangeness $S=-1$ from ${\Xi }_b^{-}$ decay into $J/\psi K^{-}\Lambda$
• Two-pole structures in QCD: Facts, not fantasy!
• Review of the $\mathbf{\Lambda }$(1405): A curious case of a strange-ness resonance
• Antikaon-nucleon interaction and Lambda(1405) in chiral SU(3) dynamics
• Predictions for the ${\Lambda }_b\to J/\psi \Lambda (1405)$ decay
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• Weak decay of Lambda_c^+ for the study of Lambda(1405) and Lambda(1670)
• QCD and the Strange Baryon Spectrum
• Structure of near-threshold quasi-bound states
• Structure of the $\mathbf{\Lambda }(1405)$ from Hamiltonian effective field theory
• $S=-1$ meson-baryon interaction and the role of isospin filtering processes
• A meson-baryon molecular interpretation for some ${\Omega }_c$ excited baryons
• Nucleon resonances $N(1875)$ and $N(2100)$ as strange partners of LHCb pentaquarks
• Role of a triangle singularity in the $\gamma p\to K^{+}\Lambda (1405)$ reaction
• A chiral covariant approach to $\rho \rho$ scattering
• Structure of Lambda(1405) and construction of KbarN local potential based on chiral SU(3) dynamics
• Coupled-Channel Model for $\bar{K}N$ Scattering in the Resonant Region
• $K^{-}N$ amplitudes below threshold constrained by multinucleon absorption
• Novel approaches in Hadron Spectroscopy
• Hidden charm pentaquarks: mass spectrum, magnetic moments, and photocouplings
• Constraining the $\overline{\mathrm{K}}\mathrm{N}$ coupled channel dynamics using femtoscopic correlations at the LHC
• Hyperon II: Properties of excited hyperons
• Cross-channel constraints on resonant antikaon-nucleon scattering
• The pole structure of the Lambda(1405) in a recent QCD simulation
• Two-pole nature of the $\Lambda (1405)$ from lattice QCD
• Generalized weak-binding relations of compositeness in effective field theory
• Lattice QCD study of $\pi \Sigma -\bar{K}N$ scattering and the $\Lambda (1405)$ resonance
• The ${\Lambda }_b\to J/\psi K\Xi$ decay and the higher order chiral terms of the meson baryon interaction
• Hyperon resonances coupled to pseudoscalar- and vector-baryon channels
• Construction of a local barK N-pi Sigma-pi Lambda potential and composition of the Lambda(1405)
• Hadron Physics at J-PARC
• Decay behavior of the strange and beauty partners of $P_c$ hadronic molecules
• Photoproduction of $\Lambda (1405)$ with the $N^{\ast }$ and $t$-channel Regge contributions
• Understanding the Nature of $\Lambda (1405)$ through Regge Physics
• Structure of the $\Lambda (1405)$ and the $K^{-}d\to \pi \Sigma n$ reaction
• S- and p-wave structure of $S=-1$ meson-baryon scattering in the resonance region
• Antineutrino induced Lambda(1405) production off the proton
• Thermodynamics of strange baryon system from coupled-channel analysis and missing states
• Photoproduction of $K^{+}\Lambda (1405)\to K^{+}{\pi }^0{\Sigma }^0$ extending to forward angles and low momentum transfer
• The role of the triangle singularity in $\Lambda (1405)$ production in the ${\pi }^{-}p\to K^0\pi \Sigma$ and $pp\to p{K}^{+}\pi \Sigma$ processes
• Hyperon I: Partial wave amplitudes for $K^{-}p$ scattering
• ${\chi }_{c0}(1P)$ decay into $\bar{\Sigma }\Sigma \pi$ in search of an $I=1$, $1/2^{-}$ baryon state around $\bar{K}N$ threshold
• Are the chiral based $\bar{K}N$ potentials really energy dependent?
• Photoproduction of ${\Lambda }^{\ast }$ and ${\Sigma }^{\ast }$ resonances with $J^P=1/2^{-}$ off the proton
• Pole position of $\Lambda (1405)$ measured in $d(K^{-},n)\pi \Sigma$ reactions
• $\Lambda (1405)$ production in the process ${\chi }_{c0}(1P)\to \bar{\Lambda }\Sigma \pi$
• On self-gravitating strange dark matter halos around galaxies
• Kaonic Hydrogen and Deuterium in Hamiltonian Effective Field Theory
• Semileptonic ${\Lambda }_c$ decay to $\nu l^{+}$ and $\Lambda (1405)$
• New insights into the pole parameters of the $\Lambda (1380)$, the $\Lambda (1405)$ and the $\Sigma (1385)$
• Decay properties of $N^{\ast }(1895)$
• $J/\psi N$ interactions revisited and ${\Lambda }_b^0\to J/\psi K^{-}({\pi }^{-})p$ decays
• Structure of hadron resonances with a nearby zero of the amplitude
• Decay of the $\Lambda (1405)$ Hyperon to ${\Sigma }^0{\pi }^0$ Measured at GlueX
• Compositeness of hadrons, nuclei, and atomic systems
• Determination of the compositeness of resonances from decays: the case of the $B_s^0\to J/\psi f_1(1285)$
• Is two-poles' $\Lambda (1405)$ one state or two?
• Faddeev approach to the reaction $K^{-}d\to \pi \Sigma n$ at $p_K=1$ GeV/c
• Pole trajectories of the $\Lambda (1405)$ helps establish its dynamical nature
• Effects of Final State Interactions on Landau Singularities
• The Lambda(1405) state in a chiral unitary approach with off-shell corrections to dimensional regularized loop functions
• Theoretical study of the Lambda(1405) resonance in Xi_b^0 -> D^0 pi Sigma decay
• Investigation of $qqqs\bar{q}$ pentaquarks in a chiral quark model
• Photo- and electroproduction of $\Lambda (1405)$ via ${\gamma }^{(\ast )}p\to K^{+}{\pi }^{+}{\Sigma }^{-}$
• Studying the bound state of the $K^{-}p$ system in the Bethe-Salpeter formalism
• The $\Lambda (1405)$ in resummed chiral effective field theory
• What We Know About the Lambda(1405)
• $\Lambda (1405)$ mediated triangle singularity in the $K^{-}d\to p{\Sigma }^{-}$ reaction
• Binding of antikaons and Lambda(1405) clusters in light kaonic nuclei
• Singlet baryons in the graded symmetry approach to partially quenched QCD
• A possible interpretation of $\Lambda$ baryon spectrum with pentaquark components
• From $\bar{K}N$ Interactions to $\bar{K}$-Nuclear Quasi-Bound States
• Trace of $\Lambda (1405)$ resonance in low energy $K^{-}+{}^3\mathrm{He}\to ({\pi }^0{\Sigma }^0)+d$ reaction
• States generated in the $K$-multi-$\rho$ interactions
• The odd-parity strange baryons $\Sigma ({\frac{1}{2}}^{-})$ below 1.8 GeV with Hamiltonian effective field theory
• Structure of $\Lambda$(1405) resonance and $\gamma p\to K^{+}+(\pi \Sigma {)}^0$ reaction
• Role of ${\Sigma }^{\ast }(1/2^{-})$ baryons in ${\Lambda }_c\to \Lambda {\pi }^{+}{\pi }^{+}{\pi }^{-}$ decay
• Lessons from fitting the lowest order energy independent chiral based $\bar{K}N$ potential to experimental data
• Amplitude analysis of $\bar{K}N$ scattering
• $K^{-}d\to \pi \Lambda N$ reaction with in-flight kaons for studying the $\Lambda N$ interaction
• Theoretical approaches to low energy $\bar{K}N$ interactions
• The Joint Physics Analysis Center: Recent results
• Dynamically generated hadronic states in the $\bar{K}N$ and $\eta N$ coupled-channels interactions
• Investigation of the $\bar{K}$--${}^6$Li Interaction and the Search for the $\Lambda (1405)$ Resonance
• The $\Lambda (1405)$ resonance as a genuine three-quark or molecular state
• Compositeness of Near Threshold Quasi-Bound States
• Correlation function for the $n{\bar{D}}_{s0}^{\ast }(2317)$ interaction and the issue of elastic unitarity