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Nuclear systems with strangeness

ECT* Seminar
Speaker: 

Daniel Gazda

Date: 
20 Nov 2013 - 11:00
Location: 
Villa Tambosi 2nd Floor, Seminar Room
Abstract: 

The first part of my talk will be devoted to nuclear systems with antikaons. We performed self-consistent calculations of antikaon-nuclear quasi-bound states across the periodic table within the relativistic mean-field approach, as well as chirally-inspired coupled-channel model.
In particular we focused on the decay widths of such states and studied in detail all relevant absorption channels and underlying dynamical processes. Moreover, we studied nuclear and hypernuclear systems with large number of antikaons and hyperons in order to search for kaon condensation precursor phenomena in finite self-bound systems. In the second part of my talk I will present our recent ab initio calculations of light hypernuclei within the no-core shell model technique. The use of translationally invariant finite harmonic oscillator basis allows us to employ large model spaces, compared to traditional shell model calculations, and use realistic nucleon-nucleon and nucleon-hyperon interactions (such as those derived from EFT). I will present formal aspects of the methodology and show first demonstrative results for hypertriton, H-4-Lambda and He-4-Lambda.