GPPU Seminar

Date

13:00-15:00, October 12th, 2017

Place

Room N204, Science Complex C (H-04) map

Abstract

In 1947 a strange signal was observed in a cosmic ray emulsion experiment which led to the discovery of the Lambda hyperon. Thus, in 2017 we are celebrating the 70th anniversary of strangeness physics and the very active field of hypernuclear physics. Today, hyperons and nucleons, mesons and hypernuclei are understood to be representatives of the underlying fundamental SU(3) flavor group structure of QCD. Although SU(3) symmetry is not perfectly conserved, the group theoretical scheme is extremely useful for the description of baryonbaryon interactions. By exploiting SU(3) symmetry, I will discuss hyperonnucleon and hyperon-hyperon interactions in free space and in nuclear matter. Of special importance for hypernuclear structure is the low-energy behaviour of hyperon-nucleon interactions which will be discussed in detail. Results for finite nuclei and neutron stars will be briefly mentioned. Despite the decadelong research activities, hypernuclear physics is still confronted with surprising and unexpected experimental results obtained recently and contributing to the excitement of nuclear strangeness physics. As an outlook, open problems in hypernuclear physics will be addressed.

Point

GSP 1