First Observation of the Unbound Nucleus Ne-15
Artikel i vetenskaplig tidskrift, 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

Författare

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 fysik

Björn Jonson

Chalmers, Fundamental fysik

C. Karagiannis

O. A. Kiselev

J. V. Kratz

R. Kulessa

N. Kurz

C. Langer

Mattias Lantz

Chalmers, Fundamental fysik

T. Le Bleis

R. Lemmon

Y. A. Litvinov

K. Mahata

C. Muntz

Thomas Nilsson

Chalmers, Fundamental fysik

C. Nociforo

Göran Hugo Nyman

Chalmers, Fundamental fysik

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 fysik

Physical Review Letters

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

Vol. 112

Ämneskategorier

Subatomär fysik

Fysik

Fundament

Grundläggande vetenskaper

DOI

10.1103/PhysRevLett.112.132502