First Observation of the Unbound Nucleus Ne-15
Journal article, 2014

We report on the first observation of the unbound proton-rich nucleus Ne-15. Its ground state and first excited state were populated in two-neutron knockout reactions from a beam of 500 MeV/u Ne-17. The Ne-15 ground state is found to be unbound by 2.522(66) MeV. The decay proceeds directly to O-13 with simultaneous two-proton emission. No evidence for sequential decay via the energetically allowed 2(-) and 1(-) states in F-14 is observed. The Ne-15 ground state is shown to have a strong configuration with two protons in the (sd) shell around O-13 with a 63(5)% (1s(1/2))(2) component.

MASS

O-12

Author

F. Wamers

J. Marganiec

F. Aksouh

Y. Aksyutina

H. Alvarez-Pol

T. Aumann

S. Beceiro-Novo

K. Boretzky

M. J. G. Borge

M. Chartier

A. Chatillon

L. V. Chulkov

D. Cortina-Gil

H. Emling

O. Ershova

L. M. Fraile

H. O. U. Fynbo

D. Galaviz

H. Geissel

M. Heil

D. H. H. Hoffmann

Håkan T Johansson

Chalmers, Fundamental Physics

Björn Jonson

Chalmers, Fundamental Physics

C. Karagiannis

O. A. Kiselev

J. V. Kratz

R. Kulessa

N. Kurz

C. Langer

Mattias Lantz

Chalmers, Fundamental Physics

T. Le Bleis

R. Lemmon

Y. A. Litvinov

K. Mahata

C. Muntz

Thomas Nilsson

Chalmers, Fundamental Physics

C. Nociforo

Göran Hugo Nyman

Chalmers, Fundamental Physics

W. Ott

V. Panin

S. Paschalis

A. Perea

R. Plag

R. Reifarth

A. Richter

C. Rodriguez-Tajes

D. Rossi

K. Riisager

D. Savran

G. Schrieder

H. Simon

J. Stroth

K. Summerer

O. Tengblad

H. Weick

C. Wimmer

Mikhail Zhukov

Chalmers, Fundamental Physics

Physical Review Letters

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

Vol. 112 13

Subject Categories

Subatomic Physics

Physical Sciences

Roots

Basic sciences

DOI

10.1103/PhysRevLett.112.132502

More information

Created

10/7/2017