Physics Letters B (Oct 2019)
Evidence of octupole-phonons at high spin in 207Pb
- D. Ralet,
- E. Clément,
- G. Georgiev,
- A.E. Stuchbery,
- M. Rejmund,
- P. Van Isacker,
- G. de France,
- A. Lemasson,
- J. Ljungvall,
- C. Michelagnoli,
- A. Navin,
- D.L. Balabanski,
- L. Atanasova,
- A. Blazhev,
- G. Bocchi,
- R. Carroll,
- J. Dudouet,
- E. Dupont,
- B. Fornal,
- S. Franchoo,
- C. Fransen,
- C. Müller-Gatermann,
- A. Goasduff,
- A. Gadea,
- P.R. John,
- D. Kocheva,
- T. Konstantinopoulos,
- A. Korichi,
- A. Kusoglu,
- S.M. Lenzi,
- S. Leoni,
- R. Lozeva,
- A. Maj,
- R. Perez,
- N. Pietralla,
- C. Shand,
- O. Stezowski,
- D. Wilmsen,
- D. Yordanov,
- D. Barrientos,
- P. Bednarczyk,
- B. Birkenbach,
- A.J. Boston,
- H.C. Boston,
- I. Burrows,
- B. Cederwall,
- M. Ciemala,
- J. Collado,
- F. Crespi,
- D. Cullen,
- H.J. Eberth,
- J. Goupil,
- L. Harkness,
- H. Hess,
- A. Jungclaus,
- W. Korten,
- M. Labiche,
- R. Menegazzo,
- D. Mengoni,
- B. Million,
- J. Nyberg,
- Zs. Podolyák,
- A. Pullia,
- B. Quintana Arnés,
- F. Recchia,
- P. Reiter,
- F. Saillant,
- M.D. Salsac,
- E. Sanchis,
- C. Theisen,
- J.J. Valiente Dobon,
- O. Wieland
Affiliations
- D. Ralet
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France; GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- E. Clément
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France; Corresponding author.
- G. Georgiev
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
- A.E. Stuchbery
- Department of Nuclear Physics, Australian National University, Canberra, ACT 2601, Australia
- M. Rejmund
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- P. Van Isacker
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- G. de France
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- A. Lemasson
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- J. Ljungvall
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
- C. Michelagnoli
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- A. Navin
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- D.L. Balabanski
- ELI-NP, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 077125 Magurele, Romania
- L. Atanasova
- Department of Medical Physics and Biophysics, Medical University-Sofia, 1431 Sofia, Bulgaria
- A. Blazhev
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
- G. Bocchi
- Instituto Nazionale di Fisica Nucleare, Milano, I-20133 Milano, Italy; Dipartimento di Fisica, Universita degli Studi di Milano, I-20133 Milano, Italy
- R. Carroll
- Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
- J. Dudouet
- Université de Lyon, Université Lyon-1, CNRS/IN2P3, UMR5822, IPNL, F-69622 Villeurbanne Cedex, France
- E. Dupont
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
- B. Fornal
- Institute of Nuclear Physics (IFJ), PAN, 31-342 Krakow, Poland
- S. Franchoo
- Institut de Physique Nucléaire, CNRS/IN2P3-Université Paris-Sud, F-91406 Orsay, France
- C. Fransen
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
- C. Müller-Gatermann
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
- A. Goasduff
- Dipartimento di Fisica e Astronomia, Università degli Studi di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- A. Gadea
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
- P.R. John
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; Dipartimento di Fisica e Astronomia, Università degli Studi di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- D. Kocheva
- University of Sofia, Sofia, Bulgaria
- T. Konstantinopoulos
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
- A. Korichi
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France
- A. Kusoglu
- Department of Physics, Faculty of Science, Istanbul University, Vezneciler/Fatih, 34134, Istanbul, Turkey
- S.M. Lenzi
- Dipartimento di Fisica e Astronomia, Università degli Studi di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- S. Leoni
- Instituto Nazionale di Fisica Nucleare, Milano, I-20133 Milano, Italy; Dipartimento di Fisica, Universita degli Studi di Milano, I-20133 Milano, Italy
- R. Lozeva
- CSNSM, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, F-91405 Orsay, France; IPHC/CNRS-University of Strasbourg, F-67037 Strasbourg, France
- A. Maj
- Institute of Nuclear Physics (IFJ), PAN, 31-342 Krakow, Poland
- R. Perez
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, E-46071 Valencia, Spain
- N. Pietralla
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- C. Shand
- Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
- O. Stezowski
- Université de Lyon, Université Lyon-1, CNRS/IN2P3, UMR5822, IPNL, F-69622 Villeurbanne Cedex, France
- D. Wilmsen
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- D. Yordanov
- Institut de Physique Nucléaire, CNRS/IN2P3-Université Paris-Sud, F-91406 Orsay, France
- D. Barrientos
- INFN, Laboratori Nazionali di Legnaro, Via Romea 4, I-35020 Legnaro, Italy
- P. Bednarczyk
- Institute of Nuclear Physics (IFJ), PAN, 31-342 Krakow, Poland
- B. Birkenbach
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
- A.J. Boston
- Oliver Lodge Laboratory, The University of Liverpool, Oxford Street, Liverpool L69 7ZE, United Kingdom
- H.C. Boston
- Oliver Lodge Laboratory, The University of Liverpool, Oxford Street, Liverpool L69 7ZE, United Kingdom
- I. Burrows
- STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
- B. Cederwall
- KTH Royal Institute of Technology, 10691 Stockholm, Sweden
- M. Ciemala
- Institute of Nuclear Physics (IFJ), PAN, 31-342 Krakow, Poland
- J. Collado
- Department of Electronic Engineering, University of Valencia, E-46100 Burjassot (Valencia), Spain
- F. Crespi
- Instituto Nazionale di Fisica Nucleare, Milano, I-20133 Milano, Italy
- D. Cullen
- Schuster Building, School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
- H.J. Eberth
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
- J. Goupil
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- L. Harkness
- Oliver Lodge Laboratory, The University of Liverpool, Oxford Street, Liverpool L69 7ZE, United Kingdom
- H. Hess
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
- A. Jungclaus
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- W. Korten
- IRFU, CEA/DRF, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
- M. Labiche
- STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
- R. Menegazzo
- Dipartimento di Fisica e Astronomia, Università degli Studi di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- D. Mengoni
- Dipartimento di Fisica e Astronomia, Università degli Studi di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- B. Million
- Instituto Nazionale di Fisica Nucleare, Milano, I-20133 Milano, Italy
- J. Nyberg
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
- Zs. Podolyák
- Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
- A. Pullia
- Instituto Nazionale di Fisica Nucleare, Milano, I-20133 Milano, Italy
- B. Quintana Arnés
- Laboratorio de Radiaciones Ionizantes, Universidad de Salamanca, E-37008 Salamanca, Spain
- F. Recchia
- Dipartimento di Fisica e Astronomia, Università degli Studi di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- P. Reiter
- Institut für Kernphysik, Universität zu Köln, D-50937 Cologne, Germany
- F. Saillant
- GANIL, CEA/DRF-CNRS/IN2P3, Bd. Henri Becquerel, BP 55027, F-14076 Caen, France
- M.D. Salsac
- IRFU, CEA/DRF, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
- E. Sanchis
- Department of Electronic Engineering, University of Valencia, E-46100 Burjassot (Valencia), Spain
- C. Theisen
- IRFU, CEA/DRF, Centre CEA de Saclay, F-91191 Gif-sur-Yvette Cedex, France
- J.J. Valiente Dobon
- INFN, Laboratori Nazionali di Legnaro, Via Romea 4, I-35020 Legnaro, Italy
- O. Wieland
- Instituto Nazionale di Fisica Nucleare, Milano, I-20133 Milano, Italy
- Journal volume & issue
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Vol. 797
Abstract
A lifetime measurement of the 19/2− state in 207Pb has been performed using the Recoil Distance Doppler-Shift (RDDS) method. The nuclei of interest were produced in multi-nucleon transfer reactions induced by a 208Pb beam impinging on a 100Mo enriched target. The beam-like nuclei were detected and identified in terms of their atomic mass number in the VAMOS++ spectrometer while the prompt γ rays were detected by the AGATA tracking array. The measured large reduced transition probability B(E3,19/2−→13/2+)=40(8) W.u. is the first indication of the octupole phonon at high spin in 207Pb. An analysis in terms of a particle-octupole-vibration coupling model indicates that the measured B(E3) value in 207Pb is compatible with the contributions from single-phonon and single particle E3 as well as E3 strength arising from the double-octupole-phonon 6+ state, all adding coherently. A crucial aspect of the coupling model, namely the strong mixing between single-hole and the phonon-hole states, is confirmed in a realistic shell-model calculation. Keywords: AGATA spectrometer, γ-Ray tracking, VAMOS++ spectrometer, Plunger device, Nuclear deformation, Octupole phonon
