One-Neutron Removal Measurement Reveals O-24 as a New Doubly Magic Nucleus
Artikel i vetenskaplig tidskrift, 2009

The first measurement of the momentum distribution for one-neutron removal from O-24 at 920A MeV performed at GSI, Darmstadt is reported. The observed distribution has a width (FWHM) of 99 +/- 4 MeV/c in the projectile rest frame and a one-neutron removal cross section of 63 +/- 7 mb. The results are well explained with a nearly pure 2s(1/2) neutron spectroscopic factor of 1.74 +/- 0.19 within the eikonal model. This large s-wave probability shows a spherical shell closure thereby confirming earlier suggestions that O-24 is a new doubly magic nucleus.

li-11

isotopes

fragment

particle stability

Författare

R. Kanungo

C. Nociforo

A. Prochazka

T. Aumann

D. Boutin

D. Cortina-Gil

B. Davids

M. Diakaki

F. Farinon

H. Geissel

R. Gernhauser

J. Gerl

R. Janik

Björn Jonson

Chalmers, Teknisk fysik, Subatomär fysik

B. Kindler

R. Knobel

R. Krucken

Mattias Lantz

Chalmers, Teknisk fysik, Subatomär fysik

H. Lenske

Y. Litvinov

B. Lommel

K. Mahata

P. Maierbeck

A. Musumarra

Thomas Nilsson

Chalmers, Teknisk fysik, Subatomär fysik

T. Otsuka

C. Perro

C. Scheidenberger

B. Sitar

P. Strmen

B. Sun

I. Szarka

I. Tanihata

Y. Utsuno

H. Weick

M. Winkler

Physical Review Letters

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

Vol. 102

Ämneskategorier

Subatomär fysik

DOI

10.1103/PhysRevLett.102.152501