Measurement of the dipole polarizability of the unstable neutron-rich nucleus Ni68
Journal article, 2013

The E1 strength distribution in Ni68 has been investigated using Coulomb excitation in inverse kinematics at the RB3-LAND setup and by measuring the invariant mass in the one- and two-neutron decay channels. The giant dipole resonance and a low-lying peak (pygmy dipole resonance) have been observed at 17.1(2) and 9.55(17) MeV, respectively. The measured dipole polarizability is compared to relativistic random phase approximation calculations yielding a neutron-skin thickness of 0.17(2) fm. A method and analysis applicable to neutron-rich nuclei has been developed, allowing for a precise determination of neutron skins in nuclei as a function of neutron excess.

Author

D. Rossi

Johannes Gutenberg University Mainz

Helmholtz

P. Adrich

Helmholtz

F. Aksouh

Helmholtz

H. Alvarez-Pol

Universidade de Santiagode Compostela

T. Aumann

Technische Universität Darmstadt

Helmholtz

J. Benlliure

Universidade de Santiagode Compostela

M. Böhmer

Technical University of Munich

K. Boretzky

Helmholtz

E. Casarejos

Universidad de Vigo

M. Chartier

University of Liverpool

A. Chatillon

Helmholtz

D. Cortina-Gil

Universidade de Santiagode Compostela

U. Datta Pramanik

Saha Institute of Nuclear Physics

H. Emling

Helmholtz

O.V. Ershova

Goethe University Frankfurt

B. Fernandez-Dominguez

Universidade de Santiagode Compostela

University of Liverpool

H. Geissel

Helmholtz

M. Górska

Helmholtz

M. Heil

Helmholtz

Håkan T Johansson

Chalmers, Applied Physics, Subatomic Physics

A.R. Junghans

Helmholtz

A. Kelic-Heil

Helmholtz

O.A. Kiselev

Johannes Gutenberg University Mainz

Helmholtz

A. Klimkiewicz

Jagiellonian University in Kraków

Helmholtz

J.V. Kratz

Johannes Gutenberg University Mainz

R. Krücken

Technical University of Munich

N. Kurz

Helmholtz

M. Labiche

Daresbury Laboratory

University of the West of Scotland

T. Le Bleis

Helmholtz

Institut Pluridisciplinaire Hubert Curien

Goethe University Frankfurt

R.C. Lemmon

Daresbury Laboratory

Y.A. Litvinov

Helmholtz

K. Mahata

Helmholtz

Bhabha Atomic Research Centre

P. Maierbeck

Technical University of Munich

A. Movsesyan

Technische Universität Darmstadt

Thomas Nilsson

Chalmers, Applied Physics, Subatomic Physics

C. Nociforo

Helmholtz

R. Palit

Tata Institute of Fundamental Research

S. Paschalis

University of Liverpool

Technische Universität Darmstadt

R. Plag

Goethe University Frankfurt

Helmholtz

R. Reifarth

Helmholtz

Goethe University Frankfurt

D. Savran

Frankfurt Institute for Advanced Studies

Helmholtz

H. Scheit

Technische Universität Darmstadt

H. Simon

Helmholtz

K. Sümmerer

Helmholtz

A. Wagner

Helmholtz

W. Walua

Jagiellonian University in Kraków

H. Weick

Helmholtz

M. Winkler

Helmholtz

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 111 24 242503

Subject Categories

Subatomic Physics

Physical Sciences

Roots

Basic sciences

DOI

10.1103/PhysRevLett.111.242503

More information

Latest update

9/15/2020