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9 papers · 2 filters
Analysis of Pion Electroproduction Data
R. A. Arndt, I. I. Strakovsky, R. L. Workman
A fit to the existing pion electroproduction data is presented. This work builds upon our previous analyses of pion photoproduction and elastic pion-nucleon scattering over the Del…
Charge-Symmetry Violation in Pion Scattering from Three-Body Nuclei
A. E. Kudryavtsev, V. E. Tarasov, B. L. Berman +3
We discuss the experimental and theoretical status of charge-symmetry violation (CSV) in the elastic scattering of pi+ and pi- on 3H and 3He. Analysis of the experimental data for…
Low lying S=-1 excited baryons and chiral symmetry
E. Oset, A. Ramos, C. Bennhold
The s-wave meson-baryon interaction in the sector is studied by means of coupled-channels, using the lowest-order chiral Lagrangian and the N/D method to implement unitari…
Multipole Analysis of a Benchmark Data Set for Pion Photoproduction
R. A. Arndt, I. Aznauryan, R. M. Davidson +8
We have fitted low- and medium-energy benchmark datasets employing methods used in the MAID/SAID and dynamical model analyses. Independent fits from the Mainz, RPI, Yerevan, and Kh…
Novel Weak Decays in Doubly Strange Systems
A. Parreno, A. Ramos, C. Bennhold
The strangeness-changing () weak baryon-baryon interaction is studied through the nonmesonic weak decay of double- hypernuclei. Besides the usual nucleon-induced decay $…
Dynamical meson-baryon resonances with chiral Lagrangians
A. Ramos, A. Parreno, J. C. Nacher +2
The s-wave meson-baryon interaction is studied using the lowest-order chiral Lagrangian in a unitary coupled-channels Bethe-Salpeter equation. In the strangeness sector the…