First signs of collectivity in N = 86 and 88 isotones above 132Sn

Houda NAÏDJA; Frédéric NOWACKI

doi:10.1051/epjconf/201819301005

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 193, 01005 (2018)
https://doi.org/10.1051/epjconf/201819301005

First signs of collectivity in N = 86 and 88 isotones above ¹³²Sn

Houda NAÏDJA¹^,2^* and Frédéric NOWACKI¹^**

¹ Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
² Université Constantine 1, LPMPS, route Ain El Bey 25000 Constantine, Algeria

^* e-mail: nhouda@gmail.com
^** e-mail: frederic.nowacki@iphc.cnrs.fr

Published online: 14 November 2018

Abstract

Within the shell-model framework the low-lying states energies, E2 and M1 transitions of chains of nuclei 52 ≤ Z ≤ 60 with 82 ≤ N ≤ 88 are investigated. We use the N3LOP effective interaction derived from Effective Field Theory Potentials and phenomenologically constrained. We noticed clear collective features in N = 86 and 88 isotones, with signature of triaxial γ-bands.

© The Authors, published by EDP Sciences, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.