Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 65: Plenary VII

HK 65.1: Eingeladener Hauptvortrag

Donnerstag, 19. März 2009, 09:00–09:30, Audi-Max

Hypernuclear Physics — •Tullio Bressani — Dipartimento di Fisica Sperimentale Torino, Torino Italy — I.N.F.N., Sezione di Torino, Italy

Hypernuclear Physics, born more than fifty years ago, is experiencing today a strong boost both from the experimental and theoretical sides. This is due mainly to the operation, in the last decade, of powerful detectors that allowed a substantial step forward on many aspects, showing interesting and sometimes unexpected phenomena. In the contribution the latest experimental results will be presented and discussed. For Hypernuclear Spectroscopy they are the good mapping of the level structure of p-shell Hypernuclei by Gamma Ray Spectroscopy, that allowed for the first time the extraction of the parameters of the Lambda-Nucleon interaction and the clear evidence for core excited states by high resolution magnetic spectrometry. For Weak Decays they are the first measurement of the negative pion spectra from mesonic decay and the first high resolution measurement of the proton spectra from non-mesonic decays. This last measurement allowed to confirm the importance of the Lambda-two nucleons weak interactions. This observation is perhaps linked to the observation of the large contribution of multi-nucleon processes in K- absorption at rest by nuclei. An outlook to future facilities will finally be given.