Speaker
Zhengyu Xu
Description
Isomer- and $\beta$-decay spectroscopy are very effective approaches to study
nuclear structure far from the $\beta$ stability, where the production rates are
extremely low. Thus they are capable to address many open questions in nuclear
physics such as persistence of shell gaps, evolution of nuclear structure, shape
coexistance and deformation in exotic nuclei with unbalanced neutron to proton
ratio. Furthermore, $\beta$-decay studies on exotic nuclei provide important
inputs for astrophysics such as $\beta$-decay half lives and $\beta$-delayed
neutron- and proton-emission probabilities. This information are of great
importance to model the astrophysical r- and rp-process and to understand the
nucleosynthesis in the universe.
In order to take advantage of the high intensity primary beams at the RIBF
facility, the EURICA project has been launched at RIKEN in 2012 with the goal of
performing spectroscopic studies of very exotic nuclei. Many experimental
campaigns have been completed successfully using fragmentation of $^{124}$Xe
beam and in-flight fission of $^{238}$U beam. Many key nuclei and their
neighboring isotopes have been produced and studied in details, such as
$^{78}$Ni, $^{110}$Zr, $^{128}$Pd, $^{100}$Sn, $^{138}$Sn, and $^{170}$Dy. This
contribution highlights the EURICA experiments performed at RIKEN and results
obtained so far, covering isotopes from $Z=26$ to $Z=66$ with a large variety of
physics case.
Author
Co-authors
Prof.
Alison Bruce
(University of Brighton)
Andrea Jungclaus
(Universidad Autonoma de Madrid)
Mrs
Ayumi Yagi
(Osaka University)
Prof.
Eiji Ideguchi
(RCNP, Osaka University)
Mr
Frank Browne
(University of Brighton)
Gary Simpson
(LPSC)
Giovanna Benzoni
(Università degli Studi e INFN Milano (IT))
Giuseppe Lorusso
(RIKEN)
Dr
Guillaume Gey
(ILL)
Dr
Hiroshi Watanabe
(Beihang University)
Hiroyoshi Sakurai
(RIKEN)
Dr
Hyosoon Jung
(University of Notre Dame)
Dr
Jan Taprogge
(Instituto de Estructura de la Materia, CSIC)
Mr
Jin Wu
(Peking University)
Dr
Kenta Yoshinaga
(Tokyo University of Science)
Dr
Megumi Niikura
(University of Tokyo)
Prof.
Patrick Regan
(University of Surrey)
Philip Malzard Walker
(University of Surrey (GB))
Dr
Pieter Doornenbal
(RIKEN)
Pär-Anders Söderström
(Department of Nuclear and Particle Physics, Uppsala University, Uppsala)
Shunji NISHIMURA
(RIKEN)
Dr
Toshiyuki Sumikama
(RIKEN)
Mrs
Zena Patel
(University of Surrey)
Zsolt Podolyak
(University of Surrey)
Zsolt Vajta
(Institute for Nuclear Research, Hungarian Academy of Sciences)
