General Info
| Field | Value |
|---|---|
| Experiment Number | e870_22 |
| Title | Cluster structure of the ground state of light exotic nuclei beyond alpha-clustering |
| Spokeperson(s) |
Valérian, Alcindor
|
| Data Manager(s) |
Valérian, Alcindor
|
| GANIL Scientific Coordinator |
Jean-Charles, Thomas
|
| Collection Dates (dd-mm-yy) |
Start: 20-06-2024 End: 29-06-2024 |
| End of Embargo | 29-06-2027 |
| DOI | 10.26143/ganil-2024-e870_22 |
| DOI State | registered |
| Publication Year | 2024 |
| Publisher | GANIL, Large Heavy Ion National Accelerator, Caen, France |
| Data Curator |
GANIL, Large Heavy Ion National Accelerator, Caen, France
|
| Hosting Institution |
CC-IN2P3, IN2P3’s Computing Centre, Villeurbanne, France
|
| Size | 0.243 TB |
Experiment details
Abstract
The aim of the experiment was to investigate the cluster structure of the ground-state of light neutron-rich nuclei beyond alpha-clustering. Recent DFT calculations predict favorable triton formation in neutron-rich nuclear matter at 1/10 of the nuclear saturation density, a condition typically reached in the surface region of nuclei. Moreover, In a recent experiment performed at RIKEN, we have obtained a first evidence of sizeable triton formation at the surface of the halo nucleus 14Be. The experiment focused on the study of triton clustering in neutron-rich beryllium isotopes 10Be and 12Be by means of the triton pickup reaction (p,alpha). Quantitative information will be obtained by comparing measured differential cross-sections with DWBA calculations performed in a microscopic framework, involving cluster wave-function deduced from e.g. AMD models. The experiment was performed at the LISE beam line where intense beams of light neutron-rich isotopes are produced. For the measurement, MUGAST-EXOGAM setup was used, in combination with the zero degrees detection system of LISE.
Setup
| Setup | MUGAST-EXOGAM + LISE |
|---|
Beam(s)
| Ion(s) | Charge state | Energy | Energy unit | Av. intensity | Intensity unit | Purity (%) | Accelerator | Production |
|---|---|---|---|---|---|---|---|---|
| 18O | 8+ | 29.3 | MeV/u | 2.e+5 | pps | 100 | Stable | Cyclotrons |
| 12Be | 4+ | 38 | MeV/u | 1.2e+5 | pps | 80 | Radioactive | LISE |
| 10Be | 4+ | 38 | MeV/u | 1.5e+5 | pps | 90 | Radioactive | LISE |
| 10Be | 4+ | 19 | MeV/u | 2.e+5 | pps | 90 | Radioactive | LISE |
Target(s)
| Material | Thickness | Thickness unit | Sample phase | Type |
|---|---|---|---|---|
| Be | 2330 | μm | Solid | Isotope |
| CH2 | 5 | mg/cm2 | Solid | Compound |
| 12C | 4 | mg/cm2 | Solid | Isotope |
| CD2 | 5 | mg/cm2 | Solid | Compound |
Studied reaction(s)
| Name | Projectile | Target |
|---|---|---|
| 18O (29.3 MeV/u) + CH2 (5 mg/cm2) | 18O(8+) @ 29.3 MeV/u | CH2 (5 mg/cm2) |
| 12Be (38 MeV/u) + CH2 (5 mg/cm2) | 12Be(4+) @ 38 MeV/u | CH2 (5 mg/cm2) |
| 10Be (38 MeV/u) + CH2 (5 mg/cm2) | 10Be(4+) @ 38 MeV/u | CH2 (5 mg/cm2) |
| 10Be (38 MeV/u) + 12C (4 mg/cm2) | 10Be(4+) @ 38 MeV/u | 12C (4 mg/cm2) |
| 10Be (38 MeV/u) + CD2 (5 mg/cm2) | 10Be(4+) @ 38 MeV/u | CD2 (5 mg/cm2) |
| 10Be (19 MeV/u) + CH2 (5 mg/cm2) | 10Be(4+) @ 19 MeV/u | CH2 (5 mg/cm2) |
| 10Be (19 MeV/u) + 12C (4 mg/cm2) | 10Be(4+) @ 19 MeV/u | 12C (4 mg/cm2) |
| 10Be (19 MeV/u) + CD2 (5 mg/cm2) | 10Be(4+) @ 19 MeV/u | CD2 (5 mg/cm2) |
Contributors
| Given Name | Family Name | Id. | Affiliation(s) |
|---|---|---|---|
| Valérian | Alcindor |
|
IJCLab, Orsay, France
|
| Zanatta-Martínez | Tania |
|
IJCLab, Orsay, France
|
| Didier | Beaumel |
|
IJCLab, Orsay, France
|
| Jacob | Tania |
|
IJCLab, Orsay, France
|
| Marlène | Assié |
|
IJCLab, Orsay, France
|
| Hammache | Faïrouz |
|
IJCLab, Orsay, France
|
| Heitz | Louis |
|
IJCLab, Orsay, France
|
| Iolanda | Matea |
|
IJCLab, Orsay, France
|
| Serge | Franchoo |
|
IJCLab, Orsay, France
|
| Iulian | Stefan |
|
IJCLab, Orsay, France
|
| Ozge | Aktas |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Laurie | Dienis |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| François | De Oliveira |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Armand | Bahini |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Emmanuel | Clément |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Gilles | De France |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Olivier | Sorlin |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Jean-Charles | Thomas |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Antoine | Lemasson |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Julien | Pancin |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Thomas | Roger |
|
GANIL, CEA/DRF-CNRS/IN2P3, Caen, France
|
| Raquel | Nicolás del Álamo |
|
INFN Padova, Padua, Italy
|
| Elia | Pilotto |
|
INFN Padova, Padua, Italy
|
| Simone | Bottoni |
|
University of Milan, Milan, Italy
INFN Milan, Milan, Italy
|
| Xiaohui | Sun |
|
Huzhou University, Huzhou, China
|
| Pengjie | Li |
|
Institute of Modern Physics, Lanzhou, China
Chinese Academy of Sciences, Beijing, China
|
| Luis | Acosta |
|
Instituto de Estructura de la Materia, Madrid, Spain
|
| Mihai | Stanoiu |
|
Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, Romania
|
| Florin | Rotaru |
|
Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, Romania
|
| Miguel | Lozano-González |
|
Universidade de Santiago de Compostela, Santiago de Compostela, Spain
|
Institutes
| Name | Id. |
|---|---|
| IJCLab, CNRS/IN2P3, Orsay, France |
|
| GANIL, CEA/DRF-CNRS/IN2P3, Caen, France |
|
| INFN Padova, Padua, Italy |
|
| University of Milan, Milan, Italy |
|
| INFN Milan, Milan, Italy |
|
| Huzhou University, Huzhou, China |
|
| Institute of Modern Physics, Lanzhou, China |
|
| Chinese Academy of Sciences, Beijing, China |
|
| Instituto de Estructura de la Materia, Madrid, Spain |
|
| Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, Romania |
|
| Universidade de Santiago de Compostela, Santiago de Compostela, Spain |
|