Observation of Λ(4)H Hyperhydrogen by Decay-Pion Spectroscopy in Electron Scattering.

At the Mainz Microtron MAMI, the first high-resolution pion spectroscopy from decays of strange systems was performed by electron scattering off a (9)Be target in order to study the Λ binding energy of light hypernuclei. Positively charged kaons were detected by a short-orbit spectrometer with a broad momentum acceptance at 0° forward angles with respect to the beam, efficiently tagging the production of strangeness in the target nucleus. Coincidentally, negatively charged decay pions were detected by two independent high-resolution spectrometers.

Measurement of the transverse beam spin asymmetry in elastic electron-proton scattering and the inelastic contribution to the imaginary part of the two-photon exchange amplitude.

We report on a measurement of the asymmetry in the scattering of transversely polarized electrons off unpolarized protons, A( perpendicular), at two Q2 values of 0.106 and 0.230 (GeV/c)(2) and a scattering angle of 30 degrees View Article and Find Full Text PDF

[Kawasaki disease. Report of two cases].

We present two reports of Kawasaki's disease. The first a five months old male, which was diagnosed through autopsy developed cardiovascular complications (myocarditis, coronary aneurysms, myocardial infarction) which led to death. The second one a two years and ten months old female, which was diagnosed at the fifth day of illness, was treated with aspirin at rate of 100 mg/kg/day and healed without consequences.