General Info
| Field | Value |
|---|---|
| Experiment Number | E775s |
| Title | Lifetime measurements of excited states in 20O populated by direct nucleon transfer |
| Spokeperson(s) |
Clement, Emmanuel
Alain, Goasduff
|
| Data Manager(s) |
Clement, Emmanuel
Alain, Goasduff
|
| GANIL Scientific Coordinator | |
| Collection Dates (dd-mm-yy) |
Start: 23-02-2020 End: 05-03-2020 |
| End of Embargo | 05-03-2025 |
| DOI | 10.26143/ganil-2020-e775s |
| DOI State | findable |
| Publication Year | 2023 |
| Publisher | GANIL |
| Data Curator |
GANIL, Large Heavy Ion National Accelerator, Caen, France
|
| Hosting Institution |
CC-IN2P3, IN2P3’s Computing Centre, Villeurbanne, France
|
| Size | 19 TB |
Abstract
E775S - The oxygen isotopes are a fantastic laboratory for the study of the nuclear force and phenomena when approaching the drip line. Neutron rich Oxygen isotopes have revealed the reduction of the N=20 shell gap and the possible role of the 3-body interaction in the nuclear force. Non-yrast states in even-even isotopes can provide relevant information in the study of realistic interactions in the sd-shells. In particular, the second 2+ and first 3+ states in 20O constructed from a pure neutron excitation (d5/2)3(s1/2)1 is sensitive to the relative position of d5/2 and s1/2 shell which can be influenced by the contribution of the 3-body interaction. Due to this simple configuration, the 2+2 state is strongly populated in the 19O(d,p)20O reaction. Using the selectivity of the VAMOS++ spectrometer, the high intense secondary beam of 19O from SPIRAL1, the accurate excitation energy selection in 20O using the MUGAST array and the high resolution gamma-ray spectrometer AGATA, we propose to perform an accurate measurement of the fs lifetime of the 2+2 and 3+1 states via their gamma decay to the first 2+ state. This experiment will be a pioneer experiment aiming at combining direct reaction with lifetime measurement in the fs range.
Technical Info
| Setup | VAMOS + MUGAST + AGATA |
|---|
Contributors
| Given Name | Family Name | Id. | Affiliation(s) |
|---|---|---|---|
| Irene | Zanon |
|
Legnaro National Laboratories
|
| Agustín J. | Menéndez Menéndez |
|
University of Barcelona
|
| Takayuki | Miyagi |
|
Technical University of Darmstadt
|
| Marlène | Assié |
|
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
|
| Michał | Ciemała |
|
Institute of Nuclear Physics, Polish Academy of Sciences
|
| Freddy | FLAVIGNY |
|
Laboratoire de Physique Corpusculaire de Caen
|
| Antoine | LEMASSON |
|
GANIL
|
| Adrien | Matta |
|
Laboratoire de Physique Corpusculaire de Caen
|
| Diego | Ramos |
|
GANIL
|
| Mauricy | Rejmund | - |
GANIL
|
Institutes
| Name | Id. |
|---|