Low-lying electric dipole γ-continuum for the unstable 62,64Fe nuclei: Strength evolution with neutron number

R Avigo; O Wieland; A Bracco; F Camera; F Ameil; T Arici; A Ataç; D Barrientos; D Bazzacco; P Bednarczyk; G Benzoni; B Birkenbach; N Blasi; H.C Boston; S Bottoni; S Brambilla; B Bruyneel; M Ciemała; E Clément; M.L Cortés; F.C.L Crespi; D.M Cullen; D Curien; F Didierjean; C Domingo-Pardo; G Duchêne; J Eberth; A Görgen; A Gadea; J Gerl; N Goel; P Golubev; V González; M Górska; A Gottardo; E Gregor; G Guastalla; T Habermann; L.J Harkness-Brennan; A Jungclaus; M Kmiecik; I Kojouharov; W Korten; N Kurz; M Labiche; N Lalović; S Leoni; M Lettmann; A Maj; R Menegazzo; D Mengoni; E Merchan; B Million; A.I Morales; D.R Napoli; C Nociforo; J Nyberg; N Pietralla; S Pietri; Zs Podolyák; V.Yu Ponomarev; A Pullia; B Quintana; G Rainovski; D Ralet; F Recchia; M Reese; P Regan; P Reiter; S Riboldi; D Rudolph; M.D Salsac; E Sanchis; L.G Sarmiento; H Schaffner; J Simpson; O Stezowski; J.J Valiente-Dobón; H.J Wollersheim; ZSOLT PODOLYAK; et al

doi:10.1016/j.physletb.2020.135951

Back

Low-lying electric dipole γ-continuum for the unstable 62,64Fe nuclei: Strength evolution with neutron number

Journal article

Open access

Peer reviewed

Low-lying electric dipole γ-continuum for the unstable 62,64Fe nuclei: Strength evolution with neutron number

R Avigo, O Wieland, A Bracco, F Camera, F Ameil, T Arici, A Ataç, D Barrientos, D Bazzacco, P Bednarczyk, …

Physics Letters. B, Vol.811, 135951

10/12/2020

DOI: https://doi.org/10.1016/j.physletb.2020.135951

Abstract

62Fe

Nuclear structure

64Fe

Dipole excitation around neutron threshold

The γ-ray emission from the nuclei 62,64Fe following Coulomb excitation at bombarding energy of 400-440 AMeV was measured with special focus on E1 transitions in the energy region 4-8 MeV. The unstable neutron-rich nuclei 62,64Fe were produced at the FAIR-GSI laboratories and selected with the FRS spectrometer. The γ decay was detected with AGATA. From the measured γ-ray spectra the summed E1 strength is extracted and compared to microscopic quasi-particle phonon model calculations. The trend of the E1 strength with increasing neutron number is found to be fairly well reproduced with calculations that assume a rather complex structure of the 1− states (three-phonon states) inducing a strong fragmentation of the E1 nuclear response below the neutron binding energy.

Files and links (1)

url

https://doi.org/10.1016/j.physletb.2020.135951View

Published (Version of record) Open

Metrics

26 Record Views

7 Times Cited - Web of Science

See more details

Details

Title: Low-lying electric dipole γ-continuum for the unstable 62,64Fe nuclei: Strength evolution with neutron number
Creators: R Avigo - INFN, Sezione di Milano, I-20133 Milano, Italy
O Wieland - INFN, Sezione di Milano, I-20133 Milano, Italy
A Bracco - INFN, Sezione di Milano, I-20133 Milano, Italy
F Camera - INFN, Sezione di Milano, I-20133 Milano, Italy
F Ameil - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
T Arici - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
A Ataç - Department of Physics, Royal Institute of Technology KTH, SE-10691 Stockholm, Sweden
D Barrientos - CERN, CH-1211 Geneva 23, Switzerland
D Bazzacco - INFN, Sezione di Padova, I-35131 Padova, Italy
P Bednarczyk - Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow, Poland
G Benzoni - INFN, Sezione di Milano, I-20133 Milano, Italy
B Birkenbach - Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
N Blasi - INFN, Sezione di Milano, I-20133 Milano, Italy
H.C Boston - Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, UK
S Bottoni - INFN, Sezione di Milano, I-20133 Milano, Italy
S Brambilla - INFN, Sezione di Milano, I-20133 Milano, Italy
B Bruyneel - IRFU, CEA/DSM, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
M Ciemała - Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow, Poland
E Clément - GANIL, CEA/DSAM and CNRS/IN2P3, BP 55027, F-14076 CAEN Cedex 05, France
M.L Cortés - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
F.C.L Crespi - INFN, Sezione di Milano, I-20133 Milano, Italy
D.M Cullen - Nuclear Physics Group, Schuster Laboratory, University of Manchester, Manchester, M13 9PL, UK
D Curien - Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
F Didierjean - Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
C Domingo-Pardo - IFIC, CSIC-Universidad de Valencia, 46980 Paterna, Valencia, Spain
G Duchêne - Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
J Eberth - Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
A Görgen - Department of Physics, University of Oslo, P. O. Box 1048 Blindern, N-0316 Oslo, Norway
A Gadea - IFIC, CSIC-Universidad de Valencia, 46980 Paterna, Valencia, Spain
J Gerl - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
N Goel - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
P Golubev - Department of Physics, Lund University, SE-22100 Lund, Sweden
V González - IFIC, CSIC-Universidad de Valencia, 46980 Paterna, Valencia, Spain
M Górska - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
A Gottardo - INFN, Sezione di Padova, I-35131 Padova, Italy
E Gregor - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
G Guastalla - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
T Habermann - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
L.J Harkness-Brennan - Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, UK
A Jungclaus - Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain
M Kmiecik - Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow, Poland
I Kojouharov - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
W Korten - IRFU, CEA/DSM, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
N Kurz - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
M Labiche - STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, UK
N Lalović - Department of Physics, Lund University, SE-22100 Lund, Sweden
S Leoni - INFN, Sezione di Milano, I-20133 Milano, Italy
M Lettmann - Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
A Maj - Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow, Poland
R Menegazzo - INFN, Sezione di Padova, I-35131 Padova, Italy
D Mengoni - INFN, Sezione di Padova, I-35131 Padova, Italy
E Merchan - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
B Million - INFN, Sezione di Milano, I-20133 Milano, Italy
A.I Morales - INFN, Sezione di Milano, I-20133 Milano, Italy
D.R Napoli - INFN, Laboratori Nazionali di Legnaro, Legnaro I-35020, Italy
C Nociforo - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
J Nyberg - Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
N Pietralla - Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
S Pietri - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
Zs Podolyák - Department of Physics, University of Surrey, Guidford, GU-27XH, UK
V.Yu Ponomarev - Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
A Pullia - INFN, Sezione di Milano, I-20133 Milano, Italy
B Quintana - Laboratorio de Radiaciones Ionizantes, Universidad de Salamanca, E-37008 Salamanca, Spain
G Rainovski - Faculty of Physics, St. Kliment Ohridski University of Sofia, 1164 Sofia, Bulgaria
D Ralet - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
F Recchia - INFN, Sezione di Padova, I-35131 Padova, Italy
M Reese - Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
P Regan - University of Surrey, School of Maths and Physics
P Reiter - Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
S Riboldi - INFN, Sezione di Milano, I-20133 Milano, Italy
D Rudolph - Department of Physics, Lund University, SE-22100 Lund, Sweden
M.D Salsac - IRFU, CEA/DSM, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
E Sanchis - Department of Electronic, Engineering Universidad de Valencia, E-46100 Valencia, Spain
L.G Sarmiento - Department of Physics, Lund University, SE-22100 Lund, Sweden
H Schaffner - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
J Simpson - STFC Daresbury Laboratory, Daresbury, Warrington, WA4 4AD, UK
O Stezowski - Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
J.J Valiente-Dobón - INFN, Laboratori Nazionali di Legnaro, Legnaro I-35020, Italy
H.J Wollersheim - GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
ZSOLT PODOLYAK - University of Surrey, School of Maths and Physics
et al
Publication Details: Physics Letters. B, Vol.811, 135951
Publisher: Elsevier B.V
Date published: 10/12/2020
Date accepted: 10/11/2020
Identifiers: 99524420102346
Academic Unit: School of Maths and Physics
Language: English
Resource Type: Journal article

Low-lying electric dipole γ-continuum for the unstable 62,64Fe nuclei: Strength evolution with neutron number

Abstract

Files and links (1)

Metrics

Details

Usage Policy