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Published Articles
Title Isospin dependence of electromagnetic transition strengths among an isobaric triplet
Author(s) Boso, A (Padua U. ; INFN, Padua ; Teddington, Natl. Phys. Lab) ; Milne, S A (York U., England) ; Bentley, M A (York U., England) ; Recchia, F (Padua U. ; INFN, Padua) ; Lenzi, S M (Padua U. ; INFN, Padua) ; Rudolph, D (Lund U.) ; Labiche, M (Daresbury) ; Pereira-Lopez, X (York U., England) ; Afara, S (King Saud U.) ; Ameil, F (Darmstadt, GSI) ; Arici, T (Darmstadt, GSI ; U. Giessen (main)) ; Aydin, S (Aksaray U.) ; Axiotis, M (INFN, Legnaro) ; Barrientos, D (CERN) ; Benzoni, G (INFN, Milan) ; Birkenbach, B (Cologne U.) ; Boston, A J (Liverpool U.) ; Boston, H C (Liverpool U.) ; Boutachkov, P (Darmstadt, GSI) ; Bracco, A (INFN, Milan ; Milan U.) ; Bruce, A M (Brighton U.) ; Bruyneel, B (IRFU, Saclay) ; Cederwall, B (Royal Inst. Tech., Stockholm) ; Clément, E (GANIL) ; Cortes, M L (Darmstadt, GSI ; Darmstadt, Tech. Hochsch.) ; Cullen, D M (Manchester U.) ; Désesquelles, P (CSNSM, Orsay) ; Dombràdi, Zs (Debrecen, Inst. Nucl. Res.) ; Domingo-Pardo, C (Valencia U., IFIC) ; Eberth, J (Cologne U.) ; Fahlander, C (Lund U.) ; Gelain, M (INFN, Legnaro) ; González, V (Valencia U., Dept. Ing. Electronica) ; John, P R (Padua U. ; INFN, Padua) ; Gerl, J (Darmstadt, GSI) ; Golubev, P (Lund U.) ; Górska, M (Darmstadt, GSI) ; Gottardo, A (Orsay, IPN) ; Grahn, T (Jyvaskyla U.) ; Grassi, L (Padua U. ; INFN, Padua) ; Habermann, T (Darmstadt, GSI) ; Harkness-Brennan, L J (Liverpool U.) ; Henry, T W (York U., England) ; Hess, H (Cologne U.) ; Kojouharov, I (Darmstadt, GSI) ; Korten, W (IRFU, Saclay) ; Lalović, N (Lund U.) ; Lettmann, M (Darmstadt, Tech. Hochsch.) ; Lizarazo, C (Darmstadt, GSI) ; Louchart-Henning, C (Darmstadt, GSI ; Darmstadt, Tech. Hochsch.) ; Menegazzo, R (INFN, Padua) ; Mengoni, D (Padua U. ; INFN, Padua) ; Merchan, E (Darmstadt, GSI) ; Michelagnoli, C (GANIL) ; Million, B (INFN, Milan) ; Modamio, V (INFN, Legnaro) ; Moeller, T (Darmstadt, Tech. Hochsch.) ; Napoli, D R (INFN, Legnaro) ; Nyberg, J (Uppsala U.) ; Nara Singh, B S (York U., England ; Manchester U.) ; Pai, H (Darmstadt, Tech. Hochsch.) ; Pietralla, N (Darmstadt, Tech. Hochsch.) ; Pietri, S (Darmstadt, GSI) ; Podolyak, Zs (Surrey U.) ; Perez Vidal, R M (Valencia U., IFIC) ; Pullia, A (Milan U. ; INFN, Milan) ; Ralet, D (Darmstadt, GSI ; Darmstadt, Tech. Hochsch. ; GANIL) ; Rainovski, G (Sofiya U.) ; Reese, M (Darmstadt, GSI ; Darmstadt, Tech. Hochsch.) ; Reiter, P (Cologne U.) ; Salsac, M D (IRFU, Saclay) ; Sanchis, E (Valencia U., Dept. Ing. Electronica) ; Sarmiento, L G (Lund U.) ; Schaffner, H (Darmstadt, GSI) ; Scruton, L M (York U., England) ; Singh, P P (Darmstadt, GSI ; Indian Inst. Tech., Ropar) ; Stahl, C (Darmstadt, GSI ; Darmstadt, Tech. Hochsch.) ; Uthayakumaar, S (York U., England) ; Valiente-Dobón, J J (INFN, Legnaro) ; Wieland, O (INFN, Milan)
Publication 2019
Number of pages 6
In: Phys. Lett. B 797 (2019) 134835
DOI 10.1016/j.physletb.2019.134835
Subject category Nuclear Physics - Experiment
Abstract Electric quadrupole matrix elements, Mp , for the Jπ=2+→0+ , ΔT=0 , T=1 transitions across the A=46 isobaric multiplet 46 Cr- 46 V- 46 Ti 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 46 Cr and 46 Ti; (ii) a “stretched target” technique was adopted here, for the first time, for lifetime measurements in 46 V and 46 Ti. 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.
Copyright/License publication: © 2019-2024 The Author(s) (License: CC-BY-4.0)

Corresponding record in: Inspire


 Record created 2019-11-09, last modified 2019-11-27