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Physics opportunities with the SPIRAL upgrade

8–10 févr. 2016
Fuseau horaire Europe/Paris

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  1. 54. Welcome address
    Dr Marek Lewitowicz (GANIL)
    08/02/2016 14:00
  2. 4. Introduction
    Dr Pierre DELAHAYE (GANIL)
    08/02/2016 14:10
  3. 5. SPIRAL 1 upgrade overview
    Dr Laurent Maunoury (CNRS GANIL), M. Mickael Dubois
    08/02/2016 14:15
  4. 7. Day 1 beams
    Dr Pierre DELAHAYE (GANIL)
    08/02/2016 14:50
  5. 12. Performances of the SPIRAL1 charge breeder
    Dr Laurent Maunoury (CNRS GANIL)
    08/02/2016 15:15
    Oral contribution
    Status of the upgrade
    In the framework of the SPIRAL1 upgrade under progress at the GANIL lab, the charge breeder based on a LPSC Phoenix ECRIS, first tested at ISOLDE [1] has been modified as to benefit of the last enhancements of this device from the 1+ / n+ community [2]. Prior to its installation in the midst of the low energy beam line of the SPIRAL1 facility, it has been tested at the 1+/n+ LPSC test bench...
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  6. 8. Ongoing R&D on target - ion source systems
    Dr Pascal Jardin
    08/02/2016 16:10
  7. 9. New targets
    M. Olivier Bajeat
    08/02/2016 16:45
  8. 11. ISOL R&D at ISOLDE
    Dr João Pedro Ramos
    08/02/2016 17:10
  9. 24. Discussion
    08/02/2016 17:45
  10. 13. Fusion-evaporation reaction at SPIRAL1
    M. Bertram Blank (CEN Bordeaux-Gradignan)
    09/02/2016 09:00
    Oral contribution
    DESIR Physics
    Heavy ion beams from CSS1 allow to produce proton-rich ions via fusion-evaporation reactions. Different heat resistant targets would be bombarded with beams of about 6 MeV/A. This would allow to send these proton-rich nuclei to DESIR and to CIME for acceleration. In the talk, calculated production rate will be presented.
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  11. 15. Precision measurements in mirror beta decays
    Prof. Etienne Liénard (LPC Caen)
    09/02/2016 09:30
    Oral contribution
    DESIR Physics
    In this contribution, we propose to measure the beta-neutrino angular correlation parameters in mirror beta decays using an upgraded LPCTrap setup at LIRAT. The main interest lies in the determination of Vud which can be deduced from this set of transitions if the GT/F mixing ratios are precisely known. This is precisely the purpose of the proposed measurements. The setup also provides the...
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  12. 17. Studies of Superallowed Fermi Beta Emitters Using the IBE Decay Station
    Dr Alex Laffoley (GANIL)
    09/02/2016 10:00
    Oral contribution
    DESIR Physics
    The study of superallowed Fermi β transitions between nuclear isobaric analog states of spin Jπ​ = 0+​ provides demanding, and fundamental, tests of the properties of the electroweak interaction. In particular, high-precision measurements of the β-decay ft values for superallowed Fermi β emitters with isospin T = 1 have been used to validate the conserved vector current (CVC) hypothesis to...
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  13. 18. Mass measurements of light neutron-rich nuclei with SPIRAL1 beams
    Mme Pauline Ascher (CENBG)
    09/02/2016 11:00
    Oral contribution
    DESIR Physics
    Mass spectrometry of short-lived neutron-rich nuclei give access to observables like 2n separation energies, which are sensitive to nuclear structure (shell effects, deformations, …) and therefore allows to probe the nuclear force far from stability. The SPIRAL1 upgrade offers the possibility to access masses of exotic nuclei which are currently either unknown or measured with large...
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  14. 16. Beta-delayed two-proton emission
    M. Bertram Blank (CEN Bordeaux-Grradignan)
    09/02/2016 11:25
    Oral contribution
    DESIR Physics
    Beta-delayed 2p emission is an exotic decay mode close to the limits of stability.Like in other cases of 2p emission, the decay may go through intermediate levels, if energetically available, or be a direct 2p process by the simultaneous emission of two protons. In this last case, the two protons may reveal angular and energy correlations which could be compared to nuclear structure and...
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  15. 30. Discussion - feasibility of beams
    09/02/2016 11:50
  16. 19. ACTAR TPC: First experiments with SPIRAL1 beams
    Dr Geoffrey-Fathom Grinyer (GANIL)
    09/02/2016 14:00
    The active target and time projection chamber (ACTAR TPC) is a novel high-luminosity gas-filled detection system that features a highly pixelated pad plane of more than 16K fully digitized electronic channels for studies of reactions and decays of nuclei furthest from stability. Design of the first (cubic) chamber is essentially complete and construction is ready to begin. Commissioning and...
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  17. 1. Role of nuclear structure in fission around neutron-deficient Pt
    Dr Manuel Caamaño (Universidade de Santiago de Compostela)
    09/02/2016 14:30
    The expected production of heavy ions after the Spiral1 upgrade opens a small window for the study of new fission modes recently found in 180Hg [PRL 105, 252502 (2010)]. These reveal a new role for structure effects, not observed in fission of actinides. The competition between the Coulomb barrier and the foreseen energies of the new beams would allow the study of fusion-fission around...
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  18. 34. Near and sub-barrier fusion of neutron-rich light nuclei
    Dr Abdou Chbihi (GANIL)
    09/02/2016 14:50
  19. 53. Spectroscopy of light nuclei at the drip lines
    Dr Manuel Caamaño (Universidade de Santiago de Compostela)
    09/02/2016 15:10
  20. 52. Feasibility of SPIRAL beams
    09/02/2016 15:40
  21. 37. Detailed spectroscopy 112Cd and 240Pu isotopes using fusionevaporation reactions with 6He beam from SPIRAL1
    Amel KORICHI (CSNSM-IN2P3/CNRS)
    09/02/2016 16:30
  22. 40. Direct isospin mixing measurement in Coulomb excitation of an 38mK isomeric beam
    Dr Gilles de FRANCE (GANIL/IN2P3/CNRS)
    09/02/2016 16:50
  23. 39. Population of the N=Z region around the 100Sn via cluster emission.
    Dr Eric Bonnet (CNRS-In2p3)
    09/02/2016 17:10
  24. 38. Probing the H–buring rate through the CNO–cycle via the Coulomb–excitation of 15O
    Mme Caterina Michelagnoli (GANIL)
    09/02/2016 17:30
  25. 21. Study of explosive hydrogen burning in classical novae using 30P and 25Al radioactive ion beams
    Nicolas de Séréville (IPN Orsay)
    09/02/2016 17:50
    Oral contribution
    AGATA with SPIRAL beams
    Classical novae outbursts are very special events since they are the 3rd most energetically ones after gamma-ray bursts and supernovae. The nucleosynthesis network involved in such events is now mainly known experimentally with a few exceptions such as the $^{25}$Al(p,$\gamma$)$^{26}$Si and $^{30}$P(p,$\gamma$)$^{31}$S reactions. In this contribution we would like to emphasize the importance...
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  26. 42. Study of light nuclei with A=25 via multi-nucleon transfer reactions induced by radioactive beams
    Dr giovanna benzoni (INFN)
    10/02/2016 09:00
  27. 43. Lifetime measurements in the A~70 region using the relativistic Coulomb excitation and three-foil plunger techniques
    Dr D. M. Cullen
    10/02/2016 09:20
  28. 44. Mirror symmetry in the sd shell close to the proton drip line
    Andreas Vogt (Institute for Nuclear Physics, University of Cologne)
    10/02/2016 09:40
  29. 45. 29Mg: Tracking shell evolution toward the island of inversion
    Dr Adrien Matta (University Of Surrey)
    10/02/2016 10:00
  30. 46. Study of n-p pairing in fp-shell through two-nucleon transfer reactions
    Dr Marlène Assié (IPNO)
    10/02/2016 10:20
  31. 47. Mapping of neutron orbitals around N=28 using 56Ni(d,p)57Ni
    Freddy FLAVIGNY (IPN Orsay)
    10/02/2016 11:30
  32. 48. Oblate driving force in n-deficient nuclei above 56Ni: occupation in 68Se
    M. Daniele Mengoni (University and INFN - Padova)
    10/02/2016 11:50
  33. 49. Structure of low-lying states in 43,45Ar studied using Coulomb excitation of SPIRAL beams
    Magda Zielinska (CEA Saclay)
    10/02/2016 12:10
  34. 50. Shape transition along and across N=28: 0+ 2 in 46,48Ar
    M. Daniele Mengoni (University and INFN - Padova)
    10/02/2016 12:30
  35. 51. Concluding remarks SPIRAL1 beams
    10/02/2016 12:50
  36. 31. ACTAR TPC: First experiments with SPIRAL1 beams
    Dr Geoffrey-Fathom Grinyer (GANIL)
  37. 27. Beta-delayed two-proton emission
    M. Bertram Blank (CEN Bordeaux-Grradignan)
  38. 6. Charge breeding
  39. 33. Direct reactions in the N=Z region
    Dr Manuel Caamaño (Universidade de Santiago de Compostela)
  40. 10. Fusion evaporation for DESIR experiments
    M. Bertram Blank (CEN Bordeaux-Grradignan)
  41. 25. Fusion evaporation reactions for DESIR
    M. Bertram Blank (CEN Bordeaux-Grradignan)
  42. 14. Lifetime plunger measurement of low-lying states in 133Ce
    Prof. Costel Petrache (CSNSM, CNRS/IN2P3, Université Paris-Sud, Orsay, France)
    Oral contribution
    We propose a plunger measurement to determine the lifetimes of low-lying states in 133Ce using the 116Cd(22Ne,5n)133Ce reaction and the AGATA+OUPS setup. The 133Ce nucleus has been recently studied with Gammaspehre. Several chiral bands and multiple triaxial rotational bands have been identified at high spins. From the same Gammasphere experiment a new, well populated band has been...
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  43. 29. Mass measurements of light neutron-rich nuclei with SPIRAL1 beams
    Mme Pauline Ascher (CENBG)
  44. 23. Precision measurements in mirror beta decays
    Prof. Etienne Liénard (LPC Caen)
  45. 26. Precision measurements in mirror beta decays
    Prof. Etienne Liénard (LPC Caen)
  46. 32. Role of nuclear structure in fission around neutron-deficient Pt
    Dr Manuel Caamaño (Universidade de Santiago de Compostela)
  47. 20. Structure of proton-rich Tz=-5/2 nuclei
    Dr Manuel Caamaño (Universidade de Santiago de Compostela)
    Oral contribution
  48. 35. Structure of proton-rich Tz=-5/2 nuclei
    Dr Beatriz Fernandez Dominguez (USC), Dr Manuel Caamaño (Universidade de Santiago de Compostela)
  49. 28. Studies of Superallowed Fermi Beta Emitters Using the IBE Decay Station
    Dr Alex Laffoley (GANIL)
  50. 22. Study of 9He through isobaric analog states in 9Li
    Dr Manuel Caamaño (Universidade de Santiago de Compostela)
    Oral contribution
  51. 36. Study of 9He through isobaric analog states in 9Li
    Dr Beatriz Fernandez Dominguez (USC), Dr Manuel Caamaño (Universidade de Santiago de Compostela)
  52. 41. To be announced (Astro)