Nuclear Physics Seminar

Hypernuclei, subatomic nuclei with hyperon(s), have been used as a
micro-laboratory to study baryon-baryon interaction under flavored-
SU(3). Comprehensive understanding of such baryon-baryon interaction
in neutron rich nuclear matter is highly demanded in order to
understand exotic astrophysical objects like neutron stars, which can
be accessed by studying neutron rich hypernuclei at extreme isospin.
Until recently, hypernuclei have been mainly studied experimentally
via induced reactions of meson- or electron-beams on
a stable target material. In these techniques, the isospin of
produced hypernuclei is close to that of the target nucleus, and the
momentum transfer to the hypernucleus is too small to separate it from
the target nuclei. Therefore, hypernuclei at extreme isospin and
hypernuclear magnetic moments have never been accessed experimentally.
With these techniques, hypernuclei with more than two strangeness
quantum numbers can not be produced. In the HypHI project at GSI,
hypernuclei are produced as projectile fragments by means of heavy ion
induced reactions with a fix target, therefore, the isospin of the
produced hypernuclei is widely distributed.
Moreover, produced hypernuclei can be separated from the target
nuclei. It gives an opportunity to measure hypernuclear magnetic
moments directly. With heavy ion collisions, hypernuclei will multiple
strangeness can also be produced. In the seminar, the overview of the
HypHI project and the detail of the first experiment (Phase 0) which
will take place in August/October in this year will be discussed. The
physics cases of the Phase 0 experiment will also be discussed.