General Info
| Field | Value |
|---|---|
| Experiment Number | e833_21 |
| Title | Pygmy dipole resonance in 140Ce using the (n,n'ɣ) reaction at NFS |
| Spokeperson(s) |
Marine , Vandebrouck
|
| Data Manager(s) |
Marine, Vandebrouck
|
| GANIL Scientific Coordinator | |
| Collection Dates (dd-mm-yy) |
Start: 05-09-2022 End: 13-09-2022 |
| End of Embargo | 13-09-2026 |
| DOI | 10.26143/ganil-2024-e833_21 |
| DOI State | findable |
| Publication Year | 2024 |
| Publisher | GANIL, Large Heavy Ion National Accelerator, Caen, France |
| Data Curator |
Grand Accélérateur National d'Ions Lourds, Caen, France
|
| Hosting Institution |
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
|
| Size | 13 TB |
Experiment details
Abstract
Giant resonances are collective vibrations of the nucleus in which the majority of the nucleons that compose the nucleus are involved in the excitation. Among the different giant resonances, the well-known isovector giant dipole resonance (IVGDR), which corresponds to the oscillation of the neutron fluid against the proton fluid, is a broad resonance with a mean energy between 12 and 24 MeV and a width in the range of 2.5 to 6 MeV which exhausts almost 100% of the isovector electric dipole strength. Additional E1 strength has been observed at lower energy in neutron-rich nuclei, near the neutron separation threshold. This small-size structure, in comparison to the IVGDR, is commonly known as the pygmy dipole resonance (PDR) and can be described as the oscillation of a neutron skin against a symmetric proton/neutron core. In the e833 experiment, we used a new probe, namely the (n,n'ɣ) reaction at NFS, to characterize the structure of the PDR in 140Ce. Neutron scattering, in addition to be charge free, offer the possibility to address the PDR structure problem with a new approach, complementary to the usual study that consists in comparing isoscalar and isovector excitations. Indeed, it is well established that for hadron scattering at energies of the order of a few tens of MeV per nucleon, the proton-neutron interaction is three times larger than the one between alike nucleons. Thus, while proton scattering mainly probes the neutron components of a transition, neutron scattering is sensitive to the protons of the nucleus. By using the (n,n'ɣ) probe at NFS we aim to reveal the nature of the PDR at nuclear surface and highlight the role of the protons in the PDR excitation in the 140Ce.
Setup
| Setup | 8 PARIS Clusters; 1 EXOGAM Clover; 48 MONSTER modules |
|---|
Beam(s)
| Ion(s) | Charge state | Energy | Energy unit | Av. intensity | Intensity unit | Purity (%) | Accelerator | Production |
|---|---|---|---|---|---|---|---|---|
| 1n | 0+ | 30.8 | MeV/u | 1.1e+5 | c/cm2/s | 100 | NFS | Li7_pn |
Target(s)
| Material | Thickness | Thickness unit | Sample phase | Type |
|---|---|---|---|---|
| natCe | 30000 | μm | Solid | Isotope |
| natC | 30000 | μm | Solid | Isotope |
Contributors
| Given Name | Family Name | Id. | Affiliation(s) |
|---|---|---|---|
| Périne | Miriot-Jaubert |
|
(IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France
(CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France
University of Paris-Saclay, Gif-sur-Yvette, France
|
| Iolanda | Matea |
|
University of Paris-Saclay, Gif-sur-Yvette, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
Laboratory of the Physics of the Two Infinities Irène Joliot-Curie, Orsay, France
|
| Diane | Doré |
|
(IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France
(CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France
University of Paris-Saclay, Gif-sur-Yvette, France
|
| Nadia Lynda | Achouri |
|
(LPC CAEN) Laboratoire de Physique Corpusculaire de Caen, Caen, France
Normandie Université, Caen, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
|
| Lama | Al-Ayoubi |
|
University of Paris-Saclay, Gif-sur-Yvette, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
Laboratory of the Physics of the Two Infinities Irène Joliot-Curie, Orsay, France
|
| Didier | Beaumel |
University of Paris-Saclay, Gif-sur-Yvette, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
Laboratory of the Physics of the Two Infinities Irène Joliot-Curie, Orsay, France
|
|
| Piotr | Bednarczyk |
|
Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
|
| Yorick | Blumenfeld |
University of Paris-Saclay, Gif-sur-Yvette, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
Laboratory of the Physics of the Two Infinities Irène Joliot-Curie, Orsay, France
|
|
| Antoine | Bogenschutz |
(IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France
(CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France
University of Paris-Saclay, Gif-sur-Yvette, France
|
|
| Angela | Bracco |
|
(INFN-MI) National Institute for Nuclear Physics, Milan Unit, Milan, Italy
|
| Sergio | Brambilla |
|
(INFN-MI) National Institute for Nuclear Physics, Milan Unit, Milan, Italy
|
| Stefana | Calinescu |
|
(IFIN-HH) Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering, Măgurele, Romania
|
| Franco | Camera |
|
(INFN-MI) National Institute for Nuclear Physics, Milan Unit, Milan, Italy
|
| Daniel | Cano-Ott |
|
(CIEMAT) Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid, Spain
|
| Wilton | Catford |
|
University of Surrey, Guildford, United Kingdom
|
| Michal | Ciemała |
|
Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
|
| Anna | Corsi |
|
(IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France
(CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France
University of Paris-Saclay, Gif-sur-Yvette, France
|
| Fabio | Crespi |
(INFN-MI) National Institute for Nuclear Physics, Milan Unit, Milan, Italy
|
|
| Yasmine | Demane |
(IP2I) Institute of Physics of 2 Infinities of Lyon, Villeurbanne, France
|
|
| Wang | Dong |
Laboratory of the Physics of the Two Infinities Irène Joliot-Curie, Orsay, France
|
|
| Olivier | Dorvaux |
|
(IPHC) Hubert Curien Pluridisciplinary Institute, Strasbourg, France
|
| Jérémie | Dudouet |
|
(IP2I) Institute of Physics of 2 Infinities of Lyon, Villeurbanne, France
|
| Matthieu | Dupuis |
(CEA DAM) Direction des Applications Militaires, Bruyères-le-Châtel, France
|
|
| David | Etasse |
Normandie Université, Caen, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
(LPC CAEN) Laboratoire de Physique Corpusculaire de Caen, Caen, France
|
|
| Sefa | Erturk |
Niğde Ömer Halisdemir Üniversitesi, Niğde, Türkiye
|
|
| Anne-Marie | Frelin |
|
Grand Accélérateur National d'Ions Lourds, Caen, France
|
| Juergen | Gerl |
|
(GSI) GSI Helmholtz Centre for Heavy Ion Research, Darmstadt, Germany
|
| Julien | Gibelin |
|
Normandie Université, Caen, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
(LPC CAEN) Laboratoire de Physique Corpusculaire de Caen, Caen, France
|
| Muhsin N. | Harakeh |
|
Grand Accélérateur National d'Ions Lourds, Caen, France
University of Groningen, Groningen, The Netherlands
|
| David | Jenkins |
|
University of York, York, United Kingdom
|
| Safia | Kihel |
(IPHC) Hubert Curien Pluridisciplinary Institute, Strasbourg, France
|
|
| Maria | Kmiecik |
|
Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
|
| Matthieu | Lebois |
|
University of Paris-Saclay, Gif-sur-Yvette, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
Laboratory of the Physics of the Two Infinities Irène Joliot-Curie, Orsay, France
|
| Xavier | Ledoux |
|
Grand Accélérateur National d'Ions Lourds, Caen, France
|
| Silvia | Leoni |
|
(INFN-MI) National Institute for Nuclear Physics, Milan Unit, Milan, Italy
|
| Marek | Lewitowicz |
|
Grand Accélérateur National d'Ions Lourds, Caen, France
|
| Marion | Mac Cormick |
University of Paris-Saclay, Gif-sur-Yvette, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
Laboratory of the Physics of the Two Infinities Irène Joliot-Curie, Orsay, France
|
|
| Adam | Maj |
|
Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
|
| Trino | Martinez |
|
(CIEMAT) Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid, Spain
|
| I. | Mazumdar |
(TIFR) Tata Institute of Fundamental Research, Mumbai, India
|
|
| Vandana | Nanal |
|
(TIFR) Tata Institute of Fundamental Research, Mumbai, India
|
| Paweł | Napiorkowski |
|
(UW) University of Warsaw, Warsaw, Poland
|
| Alberto | Pérez de Rada Fiol |
|
(CIEMAT) Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid, Spain
|
| Sophie | Péru |
|
(CEA DAM) Direction des Applications Militaires, Bruyères-le-Châtel, France
|
| Diego | Ramos |
|
Grand Accélérateur National d'Ions Lourds, Caen, France
|
| Emmanuel | Rey-herme |
|
(CENBG) Laboratoire de Physique des deux infinis Bordeaux, Gradignan, France
|
| Christelle | Schmitt |
|
(IPHC) Hubert Curien Pluridisciplinary Institute, Strasbourg, France
|
| Mihai | Stanoiu |
|
(IFIN-HH) Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering, Măgurele, Romania
|
| Olivier | Stezowski |
|
(UDL) Université de Lyon, Lyon, France
Institut National de Physique Nucléaire et de Physique des Particules, Paris, France
(IP2I) Institute of Physics of 2 Infinities of Lyon, Villeurbanne, France
|
| Christophe | Theisen |
|
(IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France
(CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France
University of Paris-Saclay, Gif-sur-Yvette, France
|
| Damien | Thisse |
|
(IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France
(CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France
University of Paris-Saclay, Gif-sur-Yvette, France
|
| Loic | Thulliez |
|
(IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France
(CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France
University of Paris-Saclay, Gif-sur-Yvette, France
|
| Guillem | Tocabens |
|
(IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France
(CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France
University of Paris-Saclay, Gif-sur-Yvette, France
|
| Jonathan | Wilson |
|
Laboratory of the Physics of the Two Infinities Irène Joliot-Curie, Orsay, France
|
| Miroslaw | Zieblinski |
|
Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
|
| Magda | Zielińska |
|
(IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France
(CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France
University of Paris-Saclay, Gif-sur-Yvette, France
|
Institutes
| Name | Id. |
|---|---|
| Grand Accélérateur National d'Ions Lourds, Caen, France |
|
| (IRFU) Institut de Recherche sur les Lois Fondamentales de l'Univers, Gif-sur-Yvette, France |
|
| (LPC CAEN) Laboratoire de Physique Corpusculaire de Caen, Caen, France |
|
| (IJCLAB) Laboratory of the Physics of the Two Infinities Irène Joliot-Curie, Orsay, France |
|
| (CIEMAT) Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Madrid, Spain |
|
| Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland |
|
| University of Strasbourg, Strasbourg, France |
|
| (IPHC) Hubert Curien Pluridisciplinary Institute, Strasbourg, France |
|
| (DPhN) Nuclear Physics Division, Gif-sur-Yvette, France |
|
| (CEA) Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Paris, France |
|
| (DRF) Direction de la Recherche Fondamentale, Gif-sur-Yvette, France |
|
| (CEA DAM) Direction des Applications Militaires, Bruyères-le-Châtel, France |
|
| University of Paris-Saclay, Gif-sur-Yvette, France |
|
| Institut National de Physique Nucléaire et de Physique des Particules, Paris, France |
|
| (INFN-MI) National Institute for Nuclear Physics, Milan Unit, Milan, Italy |
|
| (IFIN-HH) Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering, Măgurele, Romania |
|
| University of Surrey, Guildford, United Kingdom |
|
| (UDL) Université de Lyon, Lyon, France |
|
| (IP2I) Institute of Physics of 2 Infinities of Lyon, Villeurbanne, France |
|
| Niğde Ömer Halisdemir Üniversitesi, Niğde, Türkiye |
|
| (GSI) GSI Helmholtz Centre for Heavy Ion Research, Darmstadt, Germany |
|
| University of Groningen, Groningen, The Netherlands |
|
| University of York, York, United Kingdom |
|
| (TIFR) Tata Institute of Fundamental Research, Mumbai, India |
|
| (UW) University of Warsaw, Warsaw, Poland |
|
| (CENBG) Laboratoire de Physique des deux infinis Bordeaux, Gradignan, France |
|
| Normandie Université, Caen, France |
|
Citation
e833_21 Collaboration, e833_21 GANIL dataset (2024). doi:https://doi.org/10.26143/ganil-2024-e833_21.