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Quark mass dependence of the pion vector form factor
Feng-Kun Guo, Christoph Hanhart, Felipe J. Llanes-Estrada +1
We examine the quark mass dependence of the pion vector form factor, particularly the curvature (mean quartic radius). We focus our study on the consequences of assuming that the c…
Measurement of the eta->3pi0 Dalitz Plot Distribution with the WASA Detector at COSY
COSY Collaboration
In the first production run of the WASA experiment at COSY, the eta decay into three neutral pions was measured in proton-proton interactions at a proton beam kinetic energy of 1.4…
Non-Strange Meson Production with Hadronic Probes
C. Hanhart
Recent progress in the field of meson production in hadron collisions is presented. Special emphasis is put new developments in the application of effective field theory methods to…
Mass splittings within heavy baryon isospin multiplets in chiral perturbation theory
Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner
We calculate the mass splittings within the heavy baryon isospin multiplets Σ_{c(b)} and Ξ_{c(b)}' in chiral perturbation theory to leading one-loop order. The pattern of the mass…
Two-Pion Production in Proton-Proton Collisions with Polarized Beam
S. Abd El-Bary, S. Abd El-Samad, R. Bilger +46
The two-pion production reaction was measured with a polarized proton beam at 750 and 800 MeV using the short version of the COSY-TOF spectrome…
Subleading contributions to the width of the D_{s0}*(2317)
Feng-Kun Guo, Christoph Hanhart, Siegfried Krewald +1
We construct the effective chiral Lagrangian involving the D--mesons and Goldstone bosons at next-to-leading order taking into account strong as well as electromagnetic interaction…