13–17 May 2019
Venice, Centro Culturale Don Orione Artigianelli
Europe/Rome timezone
NSD2019 Proceedings are now available online at www.epj-conferences.org

Transition probabilities in $^{54}$Ti: Evolution of the shell structure of neutron-rich titanium isotopes

14 May 2019, 17:00
20m
AULA MAGNA (Centro Culturale Don Orione Artigianelli)

AULA MAGNA

Centro Culturale Don Orione Artigianelli

Speaker

Alina Goldkuhle (Institute for Nuclear Physics, University of Cologne)

Description

Previous investigations of neutron-rich titanium isotopes indicate the development of a subshell closure at $N=32$. However, shell model calculations could not explain this behaviour so far: the excitation energies of the lowest excited Yrast states in these titanium isotopes are reproduced, but not, for example, the trend of the $B(E2;2_1^+\rightarrow 0_\mathrm{gs}^+)$ values as a function of the neutron number. In addition, only few information about $E2$ transition strenghts between higher Yrast states is known. To measure these, excited states in $^{46-54}$Ti were populated by multinucleon transfer reactions and level lifetimes measured by the Recoil-Distance Doppler-shift method were determined. The experiment was performed at GANIL with the detector system AGATA and the spectrometer VAMOS++ for particle identification as well as the Cologne Compact Plunger for deep inelastic reactions. Lifetimes of the $2_1^+$ and $4_1^+$ state as well as upper and lower limits of the $6_1^+$ and $8_1^+$ state in $^{54}$Ti, respectively, could be determined with the differential decay curve method (DDCM) and corresponding $B(E2)$ values were calculated. In addition preliminary lifetime values of excited states of the neighbor nucleus $^{53}$Ti were determined for the first time and will be presented and discussed in the framework of current shell model calculations.

Primary author

Alina Goldkuhle (Institute for Nuclear Physics, University of Cologne)

Co-authors

Silvia Monica Lenzi (PD) Christoph Fransen (Institut für Kernphysik, Universität zu Köln) Marcel Bast (Institut für Kernphysik, Universität zu Köln) Benedikt Birkenbach (Institut für Kernphysik, Universität zu Köln) Andrey Blazhev (Institut für Kernphysik, Universität zu Köln) Thomas Braunroth (IKP) Alfred Dewald (Institut für Kernphysik, Universität zu Köln) Juergen Eberth (University of Cologne) Herbert Hess (IKP Cologne) Jan Jolie (Institut für Kernphysik, Universität zu Köln) Dr Julia Litzinger (University of Cologne, Institute for Nuclear Physics) Claus Müller-Gatermann (University of Cologne) Peter Reiter (IKP University of Cologne) Andreas Vogt (Institute of Nuclear Physics, University of Cologne) Karl Oskar Zell (Institut für Kernphysik, Universität zu Köln) Ayse Atac (Department of Physics, Royal Institute of Technology, Stockholm) Yann Aubert (Institut de Physique Nucléaire d'Orsay) Diego Barrientos (University of Salamanca (Spain)) Dr Dino Bazzacco Piotr Bednarczyk (IFJ-PAN) Marco Angelo Bellato (PD) Sergio Brambilla (MI) Franco Camera (MI) Bo Cederwall (Royal Institute of Technology) Michal Ciemala (Institute of Nuclear Physics PAN, Poland) Emmanuel Clement (GANIL) Samantha Colosimo (University of Liverpool) Fabio Celso Luigi Crespi (MI) David Cullen (The University of Manchester) Giacomo De Angelis (LNL) Gilles de FRANCE (GANIL) François DIDIERJEAN (IPCH - DRS) Cesar Domingo Pardo (GSI Helmholtzzentrum fuer Schwerionenforschung) Nicolas Dosme (CSNSM) Gilbert Duchene (IPHC-DRS CNRS/UdS) Jérémie Dudouet (IPNL) Andres Gadea Raga (INFN) Juergen Gerl (GSI) Tobias Habermann (GSI) Daniel Judson (University of Liverpool) Andrea Jungclaus (Instituto de Estructura de la Materia, CSIC) NABIL KARKOUR (CSNSM/IN2P3/CNRS) Amel Korichi (CSNSM-IN2P3/CNRS) Wolfram KORTEN (CEA) Thorsten Kröll (TU Darmstadt) Marc Labiche (STFC Daresbury Laboratory) Xavier LAFAY (CSNSM) Eric Legay (IN2P3) Antoine Lemasson (GANIL, Caen) Silvia Leoni (MI) Hongjie Li (GANIL) Denis LINGET (CSNSM/IN2P3/CNRS) Joa Ljungvall (CSNSM) Santo Lunardi (Dipeartimento di fisica, Universita' di Padova) Adam Maj (IFJ PAN Krakow) LAURENT MENAGER (GANIL CEA) Nicolas MENARD (GANIL) Roberto Menegazzo (PD) Dr Daniele Mengoni Caterina Michelagnoli (PD) Benedicte Million (MI) Bondili Nara Singh (University of Manchester) Adriana Nannini (FI) Pawel Napiorkowski (University of Warsaw, Heavy Ion Laboratory) Daniel Ricardo Napoli (LNL) Alahari Navin (GANIL, Caen) Paul Nolan (University of Liverpool) Johan Nyberg (Uppsala University) Rosa Pérez Vidal (IFIC-CSIC) Zsolt Podolyak (University of Surrey) Antonino Pullia (MIB) Begoña Quintana (University of Salamanca) Damian Ralet (CSNSM) Francesco Recchia (University and INFN Padova) Nadine REDON (IPN Lyon) Patrick Regan (University of Surrey) Maurycy Rejmund (GANIL) Marie-Delphine SALSAC (CEA Saclay) Marie-helene SIGWARD (CNRS/IPHC) john simpson (STFC Daresbury Laboratory) John Smith (University of the West of Scotland) Olivier Stezowski (IPN Lyon) Christophe THEISEN (CEA Saclay) Mar el Toulemonde (CIMAP-GANIL) Michel TRIPON (GANIL) Dr Javier Valiente-Dobon David Verney (IPN Orsay) Robert Wadsworth (University of York) Oliver Wieland (MI) Magda Zielinska (CEA Saclay)

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