Publications by authors named "A A Kulbardis"
Article Synopsis
- Precise angular distributions for π0 meson photoproduction off neutrons in deuterons were measured for the first time, eliminating effects from nuclear Fermi motion through complete kinematic reconstruction.
- Final-state interaction effects were assessed by comparing reaction cross sections for quasifree protons in deuterons to those of free protons, applied as a correction to the quasifree neutron findings.
- Results from the experiment at the Mainz Microtron MAMI revealed significant discrepancies in model predictions, providing important constraints for future analyses, particularly within the Bonn-Gatchina coupled-channel framework.
The photoproduction of η mesons off nucleons bound in 2H and 3He has been measured in coincidence with recoil protons and recoil neutrons for incident photon energies from threshold up to 1.4 GeV. The experiments were performed at the Mainz MAMI accelerator, using the Glasgow tagged photon facility.
View Article and Find Full Text PDFBeam-helicity asymmetries have been measured at the MAMI accelerator in Mainz in the three isospin channels gamma[over -->]p-->pi(+)pi(0)n, gamma[over -->]p-->pi(0)pi(0)p, and gamma[over -->]p-->pi(+)pi(-)p. The circularly polarized photons, produced from bremsstrahlung of longitudinally polarized electrons, were tagged with the Glasgow magnetic spectrometer. Charged pions and the decay photons of pi(0) mesons were detected in a 4pi electromagnetic calorimeter which combined the Crystal Ball detector with the TAPS detector.
View Article and Find Full Text PDFRecently the Crystal Ball Collaboration measured precise new data for the near-threshold reaction K(-)p-->etaLambda, which is dominated by formation of the Lambda(1670)1 / 2(-). In this Letter, we present results of a unitary, multichannel analysis that incorporates the new Crystal Ball data. For our preferred fit, we obtain mass M = 1673+/-2 MeV, width Gamma = 23+/-6 MeV, and elasticity x = 0.
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