Radiative production of the Lambda(1405) resonance in K collisions on protons and nuclei

Abstract

We have carried a theoretical study of the K^- p\to M B γreaction with M B = K^-p, \bar{K}^0 n, π^- Σ^+, π^+ Σ^-, π^0 Σ^0, π^0 Λ, for K^- lab. momenta between 200 and 500 MeV/c, using a chiral unitary approach for the strong K^-p interaction with its coupled channels. The Λ(1405) resonance, which is generated dynamically in this approach, shows up clearly in the dσ/dM_I spectrum, providing new tests for chiral symmetry and the unitary approach, as well as information regarding the nature of the resonance. The photon detection alone, summing all channels, is shown to reproduce quite accurately the strength and shape of the Λ(1405) resonance. Analogous reactions in nuclei can provide much information on the properties of this resonance in a nuclear medium.

arXiv comment11 pages, 3 postscripts figures

References in corpus (6)

• Non perturbative chiral approach to s-wave \bar{K}N interactions
• Chiral Dynamics and the Low Energy Kaon-Nucleon Interaction
• Non-perturbative Approach to effective chiral Lagrangians and Meson Interactions
• SU(3) Chiral Dynamics with Coupled Channels: Eta and Kaon Photoproduction
• Nuclear kaon dynamics
• K${}^{-}$-proton scattering and the $\Lambda (1405)$ in dense matter

Cited by in corpus (40)

• Chiral Dynamics of the Two Λ(1405) States
• The nature of the Lambda(1405) resonance in chiral dynamics
• Chiral Unitary approach to meson-meson and meson-baryon interactions and nuclear applications
• The properties of \bar{K} in the nuclear medium
• Strangeness in Nuclei and Neutron Stars
• K^- p scattering length from scattering experiments
• Evidence for the two pole structure of the Lambda(1405) resonance
• Kaonic production of Lambda(1405) off deuteron target in chiral dynamics
• Two-pole structures in QCD: Facts, not fantasy!
• 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
• Magnetic moments of the Lambda(1405) and Lambda(1670) resonances
• Pion photoproduction in a dynamical coupled-channels model
• Lambda(1405) poles obtained from pi0-Sigma0 photoproduction data
• QCD and the Strange Baryon Spectrum
• Role of a triangle singularity in the $\gamma p\to K^{+}\Lambda (1405)$ reaction
• Transition form factors of the N*(1535) as a dynamically generated resonance
• Internal structure of resonant Lambda(1405) state in chiral dynamics
• Electromagnetic mean squared radii of Lambda(1405) in chiral dynamics
• 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 $K_2^{\ast }(1430)$
• 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
• The radiative decay of the $\Lambda (1405)$ and its two-pole structure
• Helicity Amplitudes of the Lambda(1670) and two Lambda(1405) as dynamically generated resonances
• Kaon induced Lambda(1405) production on a deuteron target at DAFNE
• Antineutrino induced Lambda(1405) production off the proton
• Evaluation of the polarization observables I^S and I^C in the reaction gamma p --> pi^0 eta p
• Lambda (1405) photoproduction based on chiral unitary model
• Photoproduction of $K^{\ast }$ for the study of $\Lambda (1405)$
• 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
• $\Lambda (1405)$ production in the process ${\chi }_{c0}(1P)\to \bar{\Lambda }\Sigma \pi$
• Radiative decay into $\gamma P$ of the low lying axial-vector mesons
• Chiral dynamics of baryon resonances and hadrons in a nuclear medium
• Structure of Lambda(1405) and chiral dynamics
• Unitarized chiral perturbation theory of hadrons
• Theoretical study of the Lambda(1405) resonance in Xi_b^0 -> D^0 pi Sigma decay
• Dynamically Generated Resonances in the Chiral Unitary Approach to Meson Baryon Interaction
• Dynamical Generation of Hyperon Resonances
• The nature of the Lambda(1405)
• Resonances in chiral unitary approaches