Shapes and Symmetries in Nuclei: from Experiment to Theory <br> (SSNET Workshop)

Europe/Paris
Costel Petrache (CSNSM, Université Paris Sud and CNRS/IN2P3), Jerzy Dudek (IPHC and Universite de Strasbourg)
Description

The SSNET'16 Workshop, hosted by the Centre de Sciences Nucléaires et Sciences de la Matière (CSNSM) in Orsay, was held at the I2BC auditorium on the CNRS campus in Gif-sur-Yvette, France, from November 7th to the 11th, 2016.

The workshop aims at strengthening the international collaboration between the nuclear structure physicists from France, Europe and other laboratories all around the world. It has allowed fruitful discussions on recent experimental and theoretical aspects of nuclear structure related to the manifestation and description of the various shapes and geometrical symmetries of the nucleus as well as other symmetries and symmetry breaking.

Recent results obtained from various detection systems like AGATA, JUROGAM, EAGLE, GALILEO, GAMMASPHERE, GRETINA, GRIFFIN, TIGRESS, EURICA, INGA, AFRODITE have been presented, as well as the most recent theoretical advances and their applications. The intention of the workshop is to give an impulse to the studies of exotic modes of excitation in nuclei using new detector setups for gamma-rays and associated ancillaries.

The program consisted of plenary presentations by invited speakers and contributions selected from submitted abstracts, as well as a poster session, on the following topics:

  •    Experimental studies of spherical and deformed ground and excited states
  •    New facilities
  •    Methods and instrumentation
  •    Theoretical models for exotic collective excitations
  •    Theoretical models for exotic symmetries and uncertainties of modelling methods

 

Organizing committee: Alain Astier, Isabelle Deloncle, Karl Hauschild, Amel Korichi, Araceli Lopez-Martens, Costel Petrache (chair), Jerzy Dudek (co-chair)

Conference secretary: Émilie Bonnardel

 

Book of Abstracts
Circular-1
Circular-2
Map_Access_Gif-campus
Poster
Participants
  • Adam Garnsworthy
  • Adam Maj
  • Adriana Nannini
  • Alain Astier
  • Alan John Mitchell
  • Alexandrina Petrovici
  • Alfredo Galindo-Uribarri
  • Amel KORICHI
  • Amiram Leviatan
  • Anatoli Afanasjev
  • Andreas Vogt
  • Angela Gargano
  • Anna Zdeb
  • Arunabha Saha
  • Ashok Kumar Jain
  • Augusto Macchiavelli
  • Benjamin Bally
  • Bingfeng Lv
  • Bo Cederwall
  • Bozena Nerlo-Pomorska
  • Caterina Michelagnoli
  • Corina Andreoiu
  • Costel Petrache
  • Damian Ralet
  • Dario Vretenar
  • David Cullen
  • Domitian Popescu
  • Eckart Grosse
  • Elena Lawrie
  • Emmanuel Clement
  • Ernest Grodner
  • Etienne Dupont
  • Frantisek Knapp
  • Frederic NOWACKI
  • Gerda Neyens
  • Gilbert Duchene
  • Giovanni De Gregorio
  • Gregory Lane
  • Guillaume maquart
  • Hanne Heylen
  • Harish Mohan Mittal
  • Heather Crawford
  • Hiro Iwasaki
  • Hiroshi Watanabe
  • Hiroyoshi Sakurai
  • Hiroyuki Makii
  • Houda Naïdja
  • Ingemar Ragnarsson
  • Irene Dedes
  • Isabelle Deloncle
  • Issam MOUHTI
  • J. Luis Egido
  • Jan Kvasil
  • Janne Pakarinen
  • Jerzy DUDEK
  • Jie Meng
  • John Simpson
  • Jozsef Cseh
  • Julian Srebrny
  • Junchen Pei
  • Jürgen Gerl
  • Katarzyna Hadynska-Klek
  • Katarzyna Mazurek
  • Kazuko Sugawara-Tanabe
  • Ken-ichiro Arita
  • Kobus Lawrie
  • Kosai Tanabe
  • Kosuke Nomura
  • Kouhei Washiyama
  • Krzysztof Pomorski
  • Krzysztof Starosta
  • Levent Kaya
  • Luis Fraile
  • Lukasz Iskra
  • Magdalena Gorska
  • Marco Rocchini
  • Maria Kmiecik
  • Mark Riley
  • Markus Kortelainen
  • Michael Bender
  • Michal Warda
  • Nathalie PILLET
  • Patrick Regan
  • Pavlos Koseoglou
  • Peter Reiter
  • Philip Walker
  • Philippe QUENTIN
  • Piet Van Isacker
  • Purnima Singh
  • Qibo Chen
  • Radomira Lozeva
  • Radu Budaca
  • Rafael Ferrer
  • Richard Casten
  • Roelof Bijker
  • Rudrajyoti Palit
  • Shuichiro Ebata
  • Sophie Peru
  • Swati Garg
  • Swati Modi
  • Takaharu Otsuka
  • Thifhelimbilu Daphney Bucher
  • Thomas Duguet
  • Torben Lauritsen
  • Tugba Arici
  • Tuomas Grahn
  • Wojciech Satula
  • Xavier Mougeot
  • Xiao-Tao He
  • Xiaofei Yang
  • Yang Sun
  • Zeinab Ranjbar
    • Registration
    • Opening session
      Président de session: Prof. Costel Petrache (CSNSM, Université Paris-Saclay)
      • 1
        Welcome
        Orateurs: M. Bertrand Minault (DR4 CNRS, Gif-sur-Yvette), Dr Jean-Antoine Scarpaci (CSNSM Orsay), Prof. Étienne Augé (Université Paris-Saclay)
      • 2
        Welcome
        Orateur: Prof. Jerzy Dudek (IPHC and Université de Strasbourg)
    • Experiment 1
      Président de session: Prof. Costel Petrache (CSNSM, Université Paris-Saclay)
      • 3
        High-K isomers in exotic nuclei
        Orateur: Prof. Philip Walker (University of Surrey)
        Transparents
      • 4
        The evolution of shapes and collectivity with increasing angular momentum
        Orateur: Prof. Mark Riley (Florida State University)
        Slides
      • 5
        Transition rate measurements at extremes of shape coexistence
        Orateur: Dr Tuomas Grahn (University of Jyväskylä)
        Transparents
    • 10:45
      Coffee break
    • Experiment 2
      Président de session: Dr Augusto Macchiavelli (Lawrence Berkeley National Laboratory)
      • 6
        Structure of neutron-rich nuclei in the vicinity of 78Ni: The case of N=51 nuclei and of Ge and Zn isotopes
        Orateur: Dr Gilbert Duchêne (IPHC Strasbourg)
      • 7
        Shape coexistence at the 40 sub-shell closures
        Orateur: Dr Emmanuel Clément (GANIL)
        Transparents
      • 8
        Shapes and Symmetries in Nuclei studied with GRETINA
        Orateur: Dr Heather Crawford (Lawrence Berkeley National Laboratory)
        Transparents
      • 9
        Spectroscopy of neutron-rich 96Y isotope produced in fission induced by cold neutrons
        Orateur: Dr Lukasz Iskra (Institute of Nuclear Physics PAN, Krakow)
        Transparents
    • 12:30
      Lunch
    • Theory 1: Nuclear Structure from Microscopic Perspective
      Président de session: Prof. Dario Vretenar (University of Zagreb)
      • 10
        A symmetry-conserving configuration mixing description of odd and even exotic nuclei with the Gogny force
        Orateur: Prof. J. Luis Egido (Universidad Autónoma de Madrid)
        Transparents
      • 11
        Beyond-mean-field calculations based on time-reversal-invariance-breaking HFB states - prospects and perspectives
        Orateur: Dr Michael Bender (CENBG)
        Transparents
      • 12
        Exotic shapes and exotic symmetries
        Orateur: Prof. Jozsef Cseh (MTA ATOMKI)
        Transparents
      • 13
        Octupole deformation in the nuclear chart based on the 3D Skyrme-Hartree-Fock plus BCS model
        Orateur: Dr Shuichiro Ebata (Nuclear Reaction Data Centre, Hokkaido University)
        Transparents
      • 14
        When odd nuclei break symmetry of the mean field
        Orateur: Dr Sophie Péru (CEA/DAM/DIF)
        Transparents
      • 15
        Stability for the wobbling motion in the tri-axially deformed odd-A nucleus
        Orateur: Prof. Kosai Tanabe (Saitama University)
        Transparents
      • 16
        Isoscalar pairing and pairs in nuclei
        Orateur: Dr Piet Van Isacker (GANIL)
        Transparents
    • 16:55
      Coffee break
    • Theory 2: Fields, Symmetries and Related
      Président de session: Prof. J. Luis Egido (Universidad Autónoma de Madrid)
      • 17
        Coexistence of nuclear shapes: self-consistent mean-field and beyond
        Orateur: Prof. Dario Vretenar (University of Zagreb)
        Transparents
      • 18
        Nuclear shapes in covariant density functional theory: recent results
        Orateur: Prof. Anatoli Afanasjev (Mississippi State University)
        Transparents
      • 19
        Isospin symmetry and its breaking in atomic nuclei
        Orateur: Prof. Wojciech Satula (University of Warsaw)
        Transparents
      • 20
        Geometric symmetries in light nuclei
        Orateur: Dr Roelof Bijker (ICN-UNAM, Mexico)
        Transparents
      • 21
        Periodic-orbit bifurcations and dynamical symmetry restorations in exotic-shape nuclear mean fields
        Orateur: Dr Ken-ichiro Arita (Nagoya Institute of Technology)
        Transparents
    • 19:20
      Welcome cocktail
    • Experiment 3
      Président de session: Prof. Mark Riley (Florida State University)
      • 22
        Studies of shape coexistence at TRIUMF-ISAC
        Orateur: Dr Adam Garnsworthy (TRIUMF)
        Slides
      • 23
        MINIBALL - Status and perspectives of the nuclear structure experiments at ISOLDE
        Orateur: Prof. Peter Reiter (University of Cologne)
        Slides
      • 24
        The study of neutron-rich nuclei at HRIBF – lessons learned
        Orateur: Dr Alfredo Galindo-Uribarri (ORNL)
        Slides
      • 25
        Studies of super-deformed states in atomic nuclei using the Coulomb excitation method
        Orateur: Dr Katarzyna Hadynska-Klek (LNL - INFN)
        Slides
      • 26
        Back-bending in the pear shaped 223Th nucleus
        Orateur: M. Guillaume Maquart (IPNL, Lyon)
        Slides
    • 10:45
      Coffee break
    • Experiment 4
      Président de session: Prof. Gerda Neyens (KU Leuven - IKS)
      • 27
        Simple nuclear systems around the doubly magic 132Sn studied via fast-timing measurements
        Orateur: Prof. Luis Fraile (University Complutense Madrid)
        Slides
      • 28
        Beta-NMR/NQR studies of the neutron-rich Al isotopes at the border of the island of inversion
        Orateur: Mlle Hanne Heylen (Max-Plank-Institut fur Kernphysik, Heidelberg)
        Slides
      • 29
        Resonance ionization spectroscopy of actinium isotopes in a supersonic gas jet
        Orateur: Dr Rafael Ferrer (KU Leuven - IKS)
      • 30
        Shapes and collectivity in neutron-deficient Pb nuclei
        Orateur: Dr Janne Pakarinen (University of Jyväskylä)
        Slides
    • 12:40
      Lunch
    • Theory 3: Nuclear Structure from Various Perspectives
      Président de session: Dr Piet Van Isacker (GANIL)
      • 31
        The dangers of statistical tests of nuclear structure models
        Orateur: Prof. Richard Casten (Yale University)
        Slides
      • 32
        Reliability of information in nuclear databases through comprehensive tests: The example of beta decay
        Orateur: Dr Xavier Mougeot (CEA / LIST / LNHB)
        Slides
      • 33
        Theoretical description of E0, E1, E2 and M1 giant resonances
        Orateur: Prof. Jan Kvasil (Charles University, Prague)
        Transparents
      • 34
        Partial dynamical symmetries and prolate-oblate coexistence in nuclei
        Orateur: Prof. Amiram Leviatan (Hebrew University, Jerusalem)
        Transparents
      • 35
        Multipole modes within the finite amplitude method and application to the nuclear photo absorption cross section
        Orateur: Dr Markus Kortelainen (University of Jyväskylä)
        Slides
      • 36
        Dynamical description of the Poincaré and Jacobi shape transitions in nuclei: Rotation induced symmetry breaking phenomena
        Orateur: Dr Katarzyna Mazurek (Institute of Nuclear Physics PAN, Krakow)
        Slides
      • 37
        Mathematical modeling of the nuclear mean-field: The Woods-Saxon potential as a test case
        Orateur: Mlle Irene Dedes (IPHC Strasbourg)
        Slides
    • 16:45
      Coffee break
    • Theory 4: Microscopic, Shell Model, and Collective Model Approaches
      Président de session: Prof. Wojciech Satula (University of Warsaw)
      • 38
        Shell evolution, shape transition and shape coexistence with realistic nuclear forces
        Orateur: Prof. Takaharu Otsuka (University of Tokyo)
        Slides
      • 39
        Model Stability From Shell Far
        Orateur: Dr Frederic Nowacki (IPHC Strasbourg)
        Slides
      • 40
        Effectively truncated large-scale shell model calculations and nuclei around 100Sn
        Orateur: Dr Angela Gargano (INFN-Napoli)
        Slides
      • 41
        Description of nuclear phenomena associated with the emergence of broken symmetries from an ab initio perspective
        Orateur: Dr Thomas Duguet (CEA/Saclay/SPhN)
        Slides
      • 42
        Shape coexistence, isospin symmetry, and stellar weak processes within beyond-mean-field approach
        Orateur: Prof. Alexandrina Petrovici (NIPNE-HH, Bucharest)
        Slides
      • 43
        Multipole modes of deformed superfluid nuclei with the finite amplitude method in three-dimensional coordinate space
        Orateur: Dr Kouhei Washiyama (University of Tsukuba)
        Slides
    • 19:25
      Poster session - Cocktail
    • Experiment 5
      Président de session: Prof. Bo Cederwall (KTH Stockholm)
      • 44
        Laser spectroscopy as a tool to study shapes and symmetries
        Orateur: Prof. Gerda Neyens (KU Leuven - IKS)
        Slides
      • 45
        The GRIFFIN facility for decay spectroscopy experiments at TRIUMF
        Orateur: Prof. Corina Andreoiu (Simon Fraser University)
        Slides
      • 46
        Recent highlights and future projects at RIBF
        Orateur: Prof. Hiroyoshi Sakurai (RIKEN, University of Tokyo)
        Slides
      • 47
        Nuclear structure with NUSTAR at GSI and FAIR
        Orateur: Dr Jürgen Gerl (GSI Darmstadt)
        Slides
    • 10:40
      Coffee break
    • Experiment 6
      Président de session: Prof. Peter Reiter (University of Cologne)
      • 48
        Low-lying nuclear shape evolution from the dysprosium valence maximum to gamma-soft neutron-rich Osmium isotopes
        Orateur: Prof. Patrick Regan (University of Surrey &amp; NPL)
      • 49
        Shape evolution of hot rotating nuclei observed via the GDR gamma-decay
        Orateur: Prof. Adam Maj (IFJ PAN, Krakow)
        Slides
      • 50
        Measuring entry distributions with and unfolding spectra from tracking detector arrays
        Orateur: Dr Torben Lauritsen (ANL)
        Slides
      • 51
        Fission product prompt gamma-ray spectrometer, a new instrument for the ILL
        Orateur: Dr Caterina Michelagnoli (ILL Grenoble)
        Slides
    • 12:40
      Lunch
    • 14:00
      Social program

      Transfer to Paris (by bus);
      "Bateau mouche" excursion;
      Social dinner;
      Bus to Gif-sur-Yvette

    • Experiment 7
      Président de session: Prof. Ashok Kumar Jain (Indian Institute of Technology Roorkee)
      • 52
        Detail studies of Holstein-Primakoff boson representation applied to the particle-rotor model
        Orateur: Dr Kazuko Sugawara-Tanabe (RIKEN)
        Slides
      • 53
        Lifetime measurements with GRETINA at NSCL - magnetic response of halo nuclei
        Orateur: Dr Hiro Iwasaki (NSCL/MSU)
        Slides
      • 54
        Lifetimes of nuclear states in proton-emitting nuclei from Differential Plunger measurements
        Orateur: Dr David Cullen (University of Manchester)
        Slides
      • 55
        Neutron-proton correlation phenomena in the heaviest Tz=0 nuclei
        Orateur: Prof. Bo Cederwall (KTH Stockholm)
        Slides
    • 10:40
      Coffee break
    • Experiment 8
      Président de session: Dr Julian Srebrny (University of Warsaw)
      • 56
        Recent results in the 100Sn region
        Orateur: Dr Magdalena Gorska (GSI Darmstadt)
        Transparents
      • 57
        On the structure of 32Mg*
        Orateur: Dr Augusto Macchiavelli (Lawrence Berkeley National Laboratory)
        Slides
      • 58
        Measurement of prompt gamma-rays from neutron induced fission of 235U
        Orateur: Dr Hiroyuki Makii (JAEA, Tokai)
        Slides
      • 59
        The role of non-axial shapes in neutron-rich Ba isotopes
        Orateur: Dr AJ Mitchell (Australian National University)
        Slides
    • 12:30
      Lunch
    • Theory 5: Extremes - Fission and Particle-Emission, High-Spins...
      Président de session: Dr Richard Casten (Yale University)
      • 60
        Fourier description of exotic shapes of deformed and fissioning nuclei
        Orateur: Prof. Krzysztof Pomorski (Maria Curie Sklodowska University, Lublin)
        Slides
      • 61
        Pre-scission shapes of fissioning nuclei
        Orateur: Dr Michal Warda (Maria Curie Sklodowska University, Lublin)
        Slides
      • 62
        Microscopic neutron emission and fission rates in compound nuclei
        Orateur: Dr Junchen Pei (Peking University)
        Slides
      • 63
        Shape coexistence and band terminations in the I~60 spin range
        Orateur: Prof. Ingemar Ragnarsson (Lund University)
        Slides
      • 64
        Proton and heavier charged particles emission half-lives within a Gamow-like model
        Orateur: Mlle Anna Zdeb (Maria Curie Sklodowska University, Lublin)
        Slides
      • 65
        Nuclear shapes and excitations in the microscopically-guided algebraic theory
        Orateur: Dr Kosuke Nomura (University of Zagreb)
        Slides
      • 66
        A self-consistent equation of motion multi-phonon method for even mass nuclei
        Orateur: Dr Frantisek Knapp (Charles University, Prague)
        Slides
      • 67
        A new self-consistent multi-phonon approach to odd nuclei and its application to the A=17 isobars
        Orateur: Dr Giovanni De Gregorio (University of Naples "Federico II")
        Slides
    • 16:40
      Coffee break
    • Theory 6: Shapes, Symmetries, Symmetry Breaking - Various View-Points
      Président de session: Prof. Ingemar Ragnarsson (Lund University)
      • 68
        Chiral basis for particle-rotor model for odd-odd triaxial nuclei
        Orateur: Prof. Krzysztof Starosta (Simon Fraser University)
        Slides
      • 69
        Collective Hamiltonian based on density functional for chiral mode
        Orateur: Prof. Jie Meng (Peking University)
        Transparents
      • 70
        Pushing high-spin calculation to the extreme: Application of the Pfaffian algorithm in angular momentum projection
        Orateur: Prof. Yang Sun (Shanghai Jiaotong University)
        Transparents
      • 71
        Parameter-free solutions of the Bohr model with modified shape phase space
        Orateur: Dr Radu Budaca (NIPNE-HH, Magurele)
        Slides
    • Experiment 9
      Président de session: Prof. Jie Meng (Peking University)
      • 72
        Magnetic dipole moment of chiral band-head in 128Cs
        Orateur: Dr Ernest Grodner (University of Warsaw)
        Slides
      • 73
        Chiral symmetry in the Tl isotopes
        Orateur: Dr Elena Lawrie (iThemba LABS)
        Slides
      • 74
        Rotational features of triaxial nuclei
        Orateur: Prof. Rudrajyoti Palit (TIFR, Mumbai)
        Slides
      • 75
        Description of triaxial band structures in 133La
        Orateur: Dr Qibo Chen (Peking University)
        Slides
    • 10:40
      Coffee break
    • Experiment 10
      Président de session: Prof. Philip Walker (University of Surrey)
      • 76
        Recent results from EURICA at RIBF: Decay spectroscopy of 172Dy and 70Co
        Orateur: Dr Hiroshi Watanabe (Beihang University / RIKEN)
        Transparents
      • 77
        Nuclear isomers: What we learn from Tin to Tin
        Orateur: Prof. Ashok Kumar Jain (Indian Institute of Technology Roorkee)
        Slides
      • 78
        Variety of shapes and a complex shape coexistence in 187Tl
        Orateur: Dr Gregory Lane (Australian National University)
        Slides
      • 79
        First Coulomb excitation measurement with SPIDER and GALILEO at LNL
        Orateur: M. Marco Rocchini (Università degli Studi di Firenze)
        Slides
    • 12:40
      Lunch
    • Experiment 11
      Président de session: Prof. Costel Petrache (CSNSM, Université Paris-Saclay)
      • 80
        Experimental study of the excited bands in 160Yb: Theoretical context of exotic shape-coexistence
        Orateur: M. Arunabha Saha (VECC Kolkata)
        Transparents
      • 81
        Breaking of axial symmetry in excited heavy nuclei as identified by experimental data
        Orateur: Prof. Eckart Grosse (TU Dresden)
        Slides
      • 82
        Lifetime measurement in the even-even neutron-rich molybdenum isotopes with the PresPEC-AGATA setup
        Orateur: Dr Damian Ralet (CSNSM Orsay)
        Slides
      • 83
        Lifetimes of the first 2+ and the first 4+ states of 148Ce and its B4/2 ratio from EXILL&FATIMA experiment
        Orateur: M. Pavlos Koseoglou (IKP TU-Darmstadt, GSI)
        Slides
      • 84
        Collectivity in neutron rich nuclei above 132Sn core
        Orateur: Dr Houda Naïdja (Constantine 1 University)
    • 15:15
      Closing