Speaker
Alexandre Obertelli
(CEA Saclay)
Description
An enhanced collectivity was discovered in the N=40 Cr and Fe isotopes, but its evolution beyond N=40 and the maximum of collectivity remains unknown. The first campaign of the Shell Evolution And Search for Two plus Energies At the RIBF (SEASTAR) scientific program took place in Spring 2014 at the Radioactive Isotope Beam Factory. It focused on the first spectroscopy of the more neutron-rich attainable nuclei such as Cr and Fe N>40 isotopes via proton-knockout reactions with the unique coupling of the DALI2 gamma array with the MINOS device. MINOS is composed of a thick liquid hydrogen target and a Time Projection Chamber (TPC). The charged particles produced by knockout reactions are detected in the TPC and enable the reconstruction of the reaction vertex with the use of a tracking algorithm, thus ensuring an optimal Doppler correction for the measured γ-rays by DALI2. The first analysis results of the SEASTAR campaign will be presented with the first spectroscopy of 66Cr and 70,72Fe. The performances of the MINOS TPC will also be detailed.
Primary authors
Alexandre Obertelli
(CEA Saclay)
Ms
Clementine Santamaria
(CEA Saclay)
Dr
Corinne Louchart-Henning
(TU Darmstadt)
Dr
Frédéric Nowacki
(IPHC, Université de Strasbourg)
Dr
Pieter Doornenbal
(RIKEN)
Prof.
Volker Werner
(TU Darmstadt)
Co-authors
Dr
ALAIN GILLIBERT
(CEA SACLAY)
Mr
Alain Delbart
(CEA Saclay)
Alan Peyaud
(CEA Saclay)
Dr
Andrea Gottardo
(IPN Orsay)
Dr
Anna Corsi
(CEA Saclay)
Callum Shand
(University of Surrey)
Cédric Péron
(CEA Saclay)
Daisuke Suzuki
(IPN Orsay)
David Steppenbeck
(CNS, University of Tokyo)
Mr
Denis Calvet
(CEA Saclay)
Eda Sahin
(University of Oslo)
Dr
Emanuel Pollacco
(CEA Saclay)
Francesca Giacoppo
(University of Oslo)
Frank Brown
(University of Brighton)
Mr
Frédéric Château
(CEA Saclay)
Gheorghe Iulian Stefan
(IPN Orsay)
Mr
Gilles Authelet
(CEA Saclay)
He Wang
(RIKEN)
Hideaki Otsu
(RIKEN)
Mr
Hidetada Baba
(RIKEN)
Prof.
Hiroyoshi Sakurai
(RIKEN / University of Tokyo)
Mr
Jean-Marc Gheller
(CEA Saclay)
Jean-Yves Rousse
(CEA Saclay)
Jenny Lee
(Hong Kong University)
Jin Wu
(RIKEN, Peking University)
Kasia Hadynska-Klek
(University of Oslo)
Keishi Matsui
(RIKEN / University of Tokyo)
Ken-ichiro Yoneda
(RIKEN)
L.X. Chung
(Institute for Nuclear Science and Technology, Vietnam)
Louis Olivier
(IPN Orsay)
Marc Lettmann
(TU Darmstadt)
Masafumi Matsushita
(CNS/ University of Tokyo)
Masaki Sasano
(RIKEN)
Dr
Megumi Niikura
(University of Tokyo)
Paer-Anders Söderström
(RIKEN)
Dr
Radomira Lozeva
(IPHC, CNRS/IN2P3)
Mr
Ryo Taniuchi
(Department of Physics, Graduate School of Science, The University of Tokyo)
Mr
Satoru Momiyama
(RIKEN / University of Tokyo)
Satoshi Takeuchi
(RIKEN)
Serge Franchoo
(IPN Orsay)
Dr
Shinsuke Ota
(Center for Nuclear Study, the University of Tokyo)
Dr
Shunji Nishimura
(RIKEN)
Shunpei Koyama
(RIKEN / University of Tokyo)
Mr
Tada Aki Isobe
(RIKEN)
Takuya Miyazaki
(RIKEN / University of Tokyo)
Dr
Tohru Motobayashi
(RIKEN Nishina Center)
Dr
Tomohiro Uesaka
(RIKEN Nishina Center)
Toshiyuki Sumikama
(Tohoku University)
Dr
Valérie Lapoux
(CEA-Saclay)
Yoshiaki Shiga
(RIKEN / Rikkyo University)
Yuki Kubota
(RIKEN / CNS)
Zena Patel
(University of Surrey)
Zeren Korkulu
(ATOMKI)
Zhen Xu
(Hong Kong University)
Zsolt Dombradi
(ATOMKI)
Zsolt Vajta
(ATOMKI)
