@Article{Valiente-Dobon_etal2018,
author="Valiente-Dobon, J. J.
and Poves, A.
and Gadea, A.
and Fernandez-Dominguez, B.",
title="Broken mirror symmetry in S-36 and Ca-36",
journal="Physical Review C",
year="2018",
publisher="Amer Physical Soc",
volume="98",
number="1",
pages="011302--5pp",
abstract="Shape coexistence is a ubiquitous phenomenon in the neutron-rich nuclei belonging to (or sitting at the shores of) the N = 20 island of inversion (IoI). Exact isospin symmetry predicts the same behavior for their mirrors and the existence of a proton-rich IoI around Z = 20, centered in the (surely unbound) nucleus Ca-32. In this article we show that in Ca-36 and S-36, Coulomb effects break dramatically the mirror symmetry in the excitation energies due to the different structures of the intruder and normal states. The mirror energy difference (MED) of their 2(+) states is known to be very large at -- 246 keV. We reproduce this value and predict the first excited state in Ca-36 to be a 0(+) at 2.7 MeV, 250 keV below the first 2(+). In its mirror S-36 the 0(+) lies at 55keV above the 2(+) measured at 3.291 MeV. Our calculations predict a huge MED of -720 keV, that we dub the {\textquoteleft}{\textquoteleft}colossal{\textquoteright}{\textquoteright} mirror energy difference. A possible reaction mechanism to access the O-2(+) in Ca-36 will be discussed. In addition, we theoretically address the MEDs of the A = 34, T = 3 and A = 32, T = 4 mirrors.",
optnote="WOS:000439059400001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3661), last updated on Tue, 31 Jul 2018 11:58:30 +0000",
issn="2469-9985",
doi="10.1103/PhysRevC.98.011302",
opturl="https://doi.org/10.1103/PhysRevC.98.011302",
language="English"
}