Physics Letters B (Oct 2019)
Isospin dependence of electromagnetic transition strengths among an isobaric triplet
- A. Boso,
- S.A. Milne,
- M.A. Bentley,
- F. Recchia,
- S.M. Lenzi,
- D. Rudolph,
- M. Labiche,
- X. Pereira-Lopez,
- S. Afara,
- F. Ameil,
- T. Arici,
- S. Aydin,
- M. Axiotis,
- D. Barrientos,
- G. Benzoni,
- B. Birkenbach,
- A.J. Boston,
- H.C. Boston,
- P. Boutachkov,
- A. Bracco,
- A.M. Bruce,
- B. Bruyneel,
- B. Cederwall,
- E. Clement,
- M.L. Cortes,
- D.M. Cullen,
- P. Désesquelles,
- Zs. Dombràdi,
- C. Domingo-Pardo,
- J. Eberth,
- C. Fahlander,
- M. Gelain,
- V. González,
- P.R. John,
- J. Gerl,
- P. Golubev,
- M. Górska,
- A. Gottardo,
- T. Grahn,
- L. Grassi,
- T. Habermann,
- L.J. Harkness-Brennan,
- T.W. Henry,
- H. Hess,
- I. Kojouharov,
- W. Korten,
- N. Lalović,
- M. Lettmann,
- C. Lizarazo,
- C. Louchart-Henning,
- R. Menegazzo,
- D. Mengoni,
- E. Merchan,
- C. Michelagnoli,
- B. Million,
- V. Modamio,
- T. Moeller,
- D.R. Napoli,
- J. Nyberg,
- B.S. Nara Singh,
- H. Pai,
- N. Pietralla,
- S. Pietri,
- Zs. Podolyak,
- R.M. Perez Vidal,
- A. Pullia,
- D. Ralet,
- G. Rainovski,
- M. Reese,
- P. Reiter,
- M.D. Salsac,
- E. Sanchis,
- L.G. Sarmiento,
- H. Schaffner,
- L.M. Scruton,
- P.P. Singh,
- C. Stahl,
- S. Uthayakumaar,
- J.J. Valiente-Dobón,
- O. Wieland
Affiliations
- A. Boso
- Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy; National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, United Kingdom
- S.A. Milne
- Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom
- M.A. Bentley
- Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom; Corresponding author.
- F. Recchia
- Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- S.M. Lenzi
- Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- D. Rudolph
- Department of Physics, Lund University, S-22100 Lund, Sweden
- M. Labiche
- UKRI-STFC Daresbury Laboratory, Sci-Tech Daresbury, Daresbury, WA4 4AD, United Kingdom
- X. Pereira-Lopez
- Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom
- S. Afara
- King Saud University, P. O. BOX 2454, Riyadh 11451, Saudi Arabia
- F. Ameil
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- T. Arici
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Justus-Liebig-Universität Giessen, D-35392 Giessen, Germany
- S. Aydin
- Aksaray University, Bahçe Saray Mahallesi, Aksaray-Adana Yolu, 68100 Sağlık/Aksaray Merkez/Aksaray, Turkey
- M. Axiotis
- INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
- D. Barrientos
- CERN, CH-1211 Geneva 23, Switzerland
- G. Benzoni
- INFN Sezione di Milano, I-20133 Milano, Italy
- B. Birkenbach
- Institut für Kernphysik, Universität zu Köln, Zülpicher Str. 77, D-50937 Köln, Germany
- A.J. Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
- H.C. Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
- P. Boutachkov
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- A. Bracco
- INFN Sezione di Milano, I-20133 Milano, Italy; University of Milano, Dept. of Physics, I-20133 Milano, Italy
- A.M. Bruce
- School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United Kingdom
- B. Bruyneel
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- B. Cederwall
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
- E. Clement
- GANIL, Bd Henri Becquerel, BP 55027-14076 CAEN Cedex 05 France
- M.L. Cortes
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- D.M. Cullen
- School of Physics and Astronomy, The University of Manchester, Oxford Rd, Manchester, M13 9PL, United Kingdom
- P. Désesquelles
- CSNSM, Université Paris-Sud and CNRS-IN2P3, Universié Paris-Saclay, Bat 104, F-91405 Orsay Campus, France
- Zs. Dombràdi
- Institute for Nuclear Research, Hungarian Academy of Sciences, ATOMKI, P.O.Box 51, H-4001 Debrecen, Hungary
- C. Domingo-Pardo
- IFIC, CSIC-Universitat de Valencia, E-46980 Valencia, Spain
- J. Eberth
- Institut für Kernphysik, Universität zu Köln, Zülpicher Str. 77, D-50937 Köln, Germany
- C. Fahlander
- Department of Physics, Lund University, S-22100 Lund, Sweden
- M. Gelain
- INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
- V. González
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia, Spain
- P.R. John
- Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- J. Gerl
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- P. Golubev
- Department of Physics, Lund University, S-22100 Lund, Sweden
- M. Górska
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- A. Gottardo
- Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay, F-91405 Orsay, France
- T. Grahn
- Department of Physics, University of Jyväskylä, FIN-40014, Finland
- L. Grassi
- Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- T. Habermann
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- L.J. Harkness-Brennan
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
- T.W. Henry
- Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom
- H. Hess
- Institut für Kernphysik, Universität zu Köln, Zülpicher Str. 77, D-50937 Köln, Germany
- I. Kojouharov
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- W. Korten
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- N. Lalović
- Department of Physics, Lund University, S-22100 Lund, Sweden
- M. Lettmann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- C. Lizarazo
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- C. Louchart-Henning
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- R. Menegazzo
- INFN Sezione di Padova, I-35131 Padova, Italy
- D. Mengoni
- Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università di Padova and INFN, Sezione di Padova, I-35131 Padova, Italy
- E. Merchan
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- C. Michelagnoli
- GANIL, Bd Henri Becquerel, BP 55027-14076 CAEN Cedex 05 France
- B. Million
- INFN Sezione di Milano, I-20133 Milano, Italy
- V. Modamio
- INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
- T. Moeller
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- D.R. Napoli
- INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
- J. Nyberg
- Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
- B.S. Nara Singh
- Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom; School of Physics and Astronomy, The University of Manchester, Oxford Rd, Manchester, M13 9PL, United Kingdom
- H. Pai
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- N. Pietralla
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- S. Pietri
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- Zs. Podolyak
- Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
- R.M. Perez Vidal
- IFIC, CSIC-Universitat de Valencia, E-46980 Valencia, Spain
- A. Pullia
- University of Milano, Dept. of Physics, I-20133 Milano, Italy; INFN Sezione di Milano, I-20133 Milano, Italy
- D. Ralet
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany; GANIL, Bd Henri Becquerel, BP 55027-14076 CAEN Cedex 05 France
- G. Rainovski
- Faculty of Physics, St. Kliment Ohridski University of Sofia, 1164 Sofia, Bulgaria
- M. Reese
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- P. Reiter
- Institut für Kernphysik, Universität zu Köln, Zülpicher Str. 77, D-50937 Köln, Germany
- M.D. Salsac
- Irfu, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- E. Sanchis
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia, Spain
- L.G. Sarmiento
- Department of Physics, Lund University, S-22100 Lund, Sweden
- H. Schaffner
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
- L.M. Scruton
- Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom
- P.P. Singh
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Department of Physics, Indian Institute of Technology Ropar, Rupnagar - 140 001, Punjab, India
- C. Stahl
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany; Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- S. Uthayakumaar
- Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom
- J.J. Valiente-Dobón
- INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
- O. Wieland
- INFN Sezione di Milano, I-20133 Milano, Italy
- Journal volume & issue
-
Vol. 797
Abstract
Electric quadrupole matrix elements, Mp, for the Jπ=2+→0+, ΔT=0, T=1 transitions across the A=46 isobaric multiplet 46Cr-46V-46Ti have been measured at GSI with the FRS-LYCCA-AGATA setup. This allows direct insight into the isospin purity of the states of interest by testing the linearity of Mp with respect to Tz. Pairs of nuclei in the T=1 triplet were studied using identical reaction mechanisms in order to control systematic errors. The Mp values were obtained with two different methodologies: (i) a relativistic Coulomb excitation experiment was performed for 46Cr and 46Ti; (ii) a “stretched target” technique was adopted here, for the first time, for lifetime measurements in 46V and 46Ti. A constant value of Mp across the triplet has been observed. Shell-model calculations performed within the fp shell fail to reproduce this unexpected trend, pointing towards the need of a wider valence space. This result is confirmed by the good agreement with experimental data achieved with an interaction which allows excitations from the underlying sd shell. A test of the linearity rule for all published data on complete T=1 isospin triplets is presented.
