Surprises in threshold antikaon-nucleon physics

Abstract

Low energy \bar{K}N interactions are studied within Unitary Chiral Perturbation Theory at next-to-leading order with ten coupled channels. We pay special attention to the recent precise determination of the strong shift and width of the kaonic hydrogen 1s state by the DEAR Collaboration that has challenged our theoretical understanding of this sector of strong interactions. We typically find two classes of solutions, both of them reproducing previous data, that either can or cannot accommodate the DEAR measurements. The former class has not been previously discussed.

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Cited by in corpus (79)

• A New Measurement of Kaonic Hydrogen X rays
• The nature of the Lambda(1405) resonance in chiral dynamics
• Chiral Perturbation Theory and Baryon Properties
• Chiral SU(3) theory of antikaon-nucleon interactions with improved threshold constraints
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Effective Kbar N interaction based on chiral SU(3) dynamics
• K^- p scattering length from scattering experiments
• $\bar{K}NN$ quasi-bound state and the $\bar{K}N$ interaction: coupled-channel Faddeev calculations of the $\bar{K}NN-\pi \Sigma N$ system
• Origin of resonances in the chiral unitary approach
• Meson-baryon reactions with strangeness -1 within a chiral framework
• Improved constraints on chiral SU(3) dynamics from kaonic hydrogen
• D Mesons in Nuclear Matter: A DN Coupled-Channel Equations Approach
• On the Strangeness -1 S-wave Meson-Baryon Scattering
• A critical view on the deeply bound K^- pp system
• Weak decays of heavy hadrons into dynamically generated resonances
• The s-wave charmed baryon resonances from a coupled-channel approach with heavy quark symmetry
• Kaonic hydrogen X-ray measurement in SIDDHARTA
• DN interaction from meson exchange
• Hidden charm N and Delta resonances with heavy-quark symmetry
• Kaon-nucleon scattering lengths from kaonic deuterium experiments
• Kaonic production of Lambda(1405) off deuteron target in chiral dynamics
• Odd parity bottom-flavored baryon resonances
• Meson-Baryon Effective Chiral Lagrangians to O(q^3)
• Interaction of vector mesons with baryons and nuclei
• Dynamically generated open charmed baryons beyond the zero range approximation
• 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
• Non-perturbative methods for a chiral effective field theory of finite density nuclear systems
• A critical analysis on deeply bound kaonic states in nuclei
• Unitary coupled channel analysis of the $\Lambda (1520)$ resonance
• Kaon-nucleon scattering lengths from kaonic deuterium experiments revisited
• QCD and the Strange Baryon Spectrum
• The properties of D and D* mesons in the nuclear medium
• Precise calculation of the two-step process for K- d -> pi Sigma N in the Lambda (1405) resonance region
• Study of exotic hadrons in S-wave scatterings induced by chiral interaction in the flavor symmetric limit
• The pole structure of the Lambda(1405) in a recent QCD simulation
• Two-photon and one photon-one vector meson decay widths of the $f_0(1370)$, $f_2(1270)$, $f_0(1710)$, $f_2^{\prime }(1525)$, and $K_2^{\ast }(1430)$
• On the nature of the $\Lambda (1405)$ and $\Lambda (1670)$ from their $N_c$ behavior in chiral dynamics
• The role of the $\Lambda (1405)$ in the $pp\to p{K}^{+}\Lambda (1405)$ reaction
• Strategy to find the two $\Lambda (1405)$ states from lattice QCD simulations
• Clues to the nature of the Delta^*(1700) resonance from pion- and photon-induced reactions
• The radiative decay of the $\Lambda (1405)$ and its two-pole structure
• Open charm meson in nuclear matter at finite temperature beyond the zero range approximation
• Critical review of [K- ppn] bound states
• Faddeev-Chiral Unitary Approach to the $K^{-}d$ scattering length
• Comment on "Surprises in threshold antikaon-nucleon physics"
• Reply to Comment on "Surprises in threshold antikaon-nucleon physics"
• The $K^{-}p\to {\Sigma }^0{\pi }^0$ reaction at low energies in a chiral quark model
• Determination of the pi Sigma scattering lengths from the weak decays of Lambda_c
• Prospects for e+e- physics at Frascati between the phi and the psi
• Measurement of the strong interaction induced shift and width of the 1s state of kaonic deuterium at J-PARC
• The Octet Meson and Octet Baryon Interaction with strangeness and the $\Lambda (1405)$
• Hadronic Atoms
• The $\rho (\omega )B^{\ast }(B)$ interaction and states of $J=0,1,2$
• Low energy reactions $K^{-}p\to {\Sigma }^0{\pi }^0$, $\Lambda {\pi }^0$, ${\bar{K}}^{0}n$ and the strangeness $S=-1$ hyperons
• A study of the $KN$-$K^{\ast }N$ coupled systems
• The $\sigma K$ coupling in the chiral unitary approach and the isoscalar $\bar{K}N$, $\bar{K}A$ interaction
• Structure of the $\mathbf{\Lambda }(1670)$ resonance
• $J/\psi N$ interactions revisited and ${\Lambda }_b^0\to J/\psi K^{-}({\pi }^{-})p$ decays
• Combined analysis of the $K^{+}{K}^{-}$ interaction using near threshold $pp\to pp{K}^{+}{K}^{-}$ data
• Is two-poles' $\Lambda (1405)$ one state or two?
• Pole trajectories of the $\Lambda (1405)$ helps establish its dynamical nature
• An in-medium chiral power counting for nuclear matter and some applications
• Determination of the compositeness of resonances from decays: the case of the $B_s^0\to J/\psi f_1(1285)$
• Aspects of Strangeness -1 Meson-Baryon Scattering
• Low energy reaction $K^{-}p\to \Lambda \eta$ and the negative parity $\Lambda$ resonances
• Charge-conjugation asymmetry and molecular content: the $D_{s0}^{\ast }(2317{)}^{\pm }$ in matter
• Baryon polarization in low-energy unpolarized meson-baryon scattering
• What We Know About the Lambda(1405)
• K^- ^3He and K^+K^- interactions in the pd -> ^3He K^+K^- reaction
• Meson-Baryon Scattering Parameters from Lattice QCD with an Isospin Chemical Potential
• Testing the nature of the $\Lambda$(1520) in the $J/\psi \to \bar{\Lambda }{K}^{-}p$ and $J/\psi \to \bar{\Lambda }{\pi }^{+}{\pi }^{-}\Lambda$ reactions
• Precise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon Antihyperon Pairs
• Polarized $p{K}^{-}$ scattering in Unitary Baryon Chiral Perturbation Theory
• Topics in Lattice QCD and Effective Field Theory
• Kaon-Nucleon scattering lengths from the experiments on kaonic hydrogen and kaonic deuterium
• Resonances in chiral unitary approaches
• The nature of the Lambda(1405)
• Interaction of vector mesons with baryons and vectors in the nuclear medium