Shape coexistence in neutron-deficient Hg isotopes studied via lifetime measurements in \(^{184,186}\)Hg and two-state mixing calculations

The neutron-deficient mercury isotopes, \(^{184,186}\)Hg, were studied with the Recoil Distance Doppler Shift (RDDS) method using the Gammasphere array and the K\"oln Plunger device. The Differential Decay Curve Method (DDCM) was employed to determine the lifetimes of the yrast states in \(^{18...

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Hauptverfasser: Gaffney, L P, Hackstein, M, Page, R D, Grahn, T, Scheck, M, Butler, P A, Bertone, P F, Bree, N, Carroll, R J, Carpenter, M P, Chiara, C J, Dewald, A, Filmer, F, Fransen, C, Huyse, M, Janssens, R V F, Joss, D T, Julin, R, Kondev, F G, Nieminen, P, Pakarinen, J, Rigby, S V, Rother, W, P Van Duppen, Watkins, H V, Wrzosek-Lipska, K, Zhu, S
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creator Gaffney, L P
Hackstein, M
Page, R D
Grahn, T
Scheck, M
Butler, P A
Bertone, P F
Bree, N
Carroll, R J
Carpenter, M P
Chiara, C J
Dewald, A
Filmer, F
Fransen, C
Huyse, M
Janssens, R V F
Joss, D T
Julin, R
Kondev, F G
Nieminen, P
Pakarinen, J
Rigby, S V
Rother, W
P Van Duppen
Watkins, H V
Wrzosek-Lipska, K
Zhu, S
description The neutron-deficient mercury isotopes, \(^{184,186}\)Hg, were studied with the Recoil Distance Doppler Shift (RDDS) method using the Gammasphere array and the K\"oln Plunger device. The Differential Decay Curve Method (DDCM) was employed to determine the lifetimes of the yrast states in \(^{184,186}\)Hg. An improvement on previously measured values of yrast states up to \(8^{+}\) is presented as well as first values for the \(9_{3}\) state in \(^{184}\)Hg and \(10^{+}\) state in \(^{186}\)Hg. \(B(E2)\) values are calculated and compared to a two-state mixing model which utilizes the variable moment of inertia (VMI) model, allowing for extraction of spin-dependent mixing strengths and amplitudes.
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subjects Doppler effect
Mercury (metal)
Mercury isotopes
Moments of inertia
Physics - Nuclear Experiment
Recoil
title Shape coexistence in neutron-deficient Hg isotopes studied via lifetime measurements in \(^{184,186}\)Hg and two-state mixing calculations
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