Two-particle transfer processes as a signature of shape phase transition in Zirconium isotopes

We explore two-particle transfer reactions as a crucial probe of the occurrence of shape coexistence in shape phase transitions. The (t,p) reactions to the ground state and to excited 0+ states are calculated for the isotope chain of even-even Zirconium isotopes starting from stable nuclei up to bey...

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Main Authors: J.A. Lay, A. Vitturi, L. Fortunato, Y. Tsunoda, T. Togashi, T. Otsuka
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269323000539
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author J.A. Lay
A. Vitturi
L. Fortunato
Y. Tsunoda
T. Togashi
T. Otsuka
author_facet J.A. Lay
A. Vitturi
L. Fortunato
Y. Tsunoda
T. Togashi
T. Otsuka
author_sort J.A. Lay
collection DOAJ
description We explore two-particle transfer reactions as a crucial probe of the occurrence of shape coexistence in shape phase transitions. The (t,p) reactions to the ground state and to excited 0+ states are calculated for the isotope chain of even-even Zirconium isotopes starting from stable nuclei up to beyond current experimental limits. Two-particle spectroscopic factors derived from Monte Carlo Shell Model calculations are used, together with the sequential description of the two-particle transfer reaction mechanism. The calculation shows a clear signature for a shape phase transition between 98Zr and 100Zr, which displays coexistence of a deformed ground state with an excited spherical 0+ state. Furthermore, we show that there is a qualitative difference with respect to the case of a normal shape phase transition that can be discriminated with two-neutron transfer reactions.
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spelling doaj.art-6429b7120b8e4932bb1d7451f3ebb0832023-02-16T04:17:43ZengElsevierPhysics Letters B0370-26932023-03-01838137719Two-particle transfer processes as a signature of shape phase transition in Zirconium isotopesJ.A. Lay0A. Vitturi1L. Fortunato2Y. Tsunoda3T. Togashi4T. Otsuka5Departamento de Física Atómica, Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain; Instituto Interuniversitario Carlos I de Física Teórica y Computacional (iC1), Apdo. 1065, E-41080 Sevilla, Spain; Corresponding author at: Departamento de Física Atómica, Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain.Dipartimento di Fisica e Astronomia “Galileo Galilei”, Univ. Padova, via Marzolo, 8, I-35131 Padova, Italy; INFN, Sezione di Padova, via Marzolo, 8, I-35131 Padova, ItalyDipartimento di Fisica e Astronomia “Galileo Galilei”, Univ. Padova, via Marzolo, 8, I-35131 Padova, Italy; INFN, Sezione di Padova, via Marzolo, 8, I-35131 Padova, ItalyCenter for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan; Center for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, JapanCenter for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, JapanCenter for Nuclear Study, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan; Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, BelgiumWe explore two-particle transfer reactions as a crucial probe of the occurrence of shape coexistence in shape phase transitions. The (t,p) reactions to the ground state and to excited 0+ states are calculated for the isotope chain of even-even Zirconium isotopes starting from stable nuclei up to beyond current experimental limits. Two-particle spectroscopic factors derived from Monte Carlo Shell Model calculations are used, together with the sequential description of the two-particle transfer reaction mechanism. The calculation shows a clear signature for a shape phase transition between 98Zr and 100Zr, which displays coexistence of a deformed ground state with an excited spherical 0+ state. Furthermore, we show that there is a qualitative difference with respect to the case of a normal shape phase transition that can be discriminated with two-neutron transfer reactions.http://www.sciencedirect.com/science/article/pii/S0370269323000539
spellingShingle J.A. Lay
A. Vitturi
L. Fortunato
Y. Tsunoda
T. Togashi
T. Otsuka
Two-particle transfer processes as a signature of shape phase transition in Zirconium isotopes
Physics Letters B
title Two-particle transfer processes as a signature of shape phase transition in Zirconium isotopes
title_full Two-particle transfer processes as a signature of shape phase transition in Zirconium isotopes
title_fullStr Two-particle transfer processes as a signature of shape phase transition in Zirconium isotopes
title_full_unstemmed Two-particle transfer processes as a signature of shape phase transition in Zirconium isotopes
title_short Two-particle transfer processes as a signature of shape phase transition in Zirconium isotopes
title_sort two particle transfer processes as a signature of shape phase transition in zirconium isotopes
url http://www.sciencedirect.com/science/article/pii/S0370269323000539
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AT ytsunoda twoparticletransferprocessesasasignatureofshapephasetransitioninzirconiumisotopes
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AT totsuka twoparticletransferprocessesasasignatureofshapephasetransitioninzirconiumisotopes