Structure of 22N and the N=14 subshell
Artikel i vetenskaplig tidskrift, 2011

One-neutron knockout data for N18-22 are analyzed in the eikonal approximation of the Glauber model. The role of the s-d shell and the crossing of the N = 14 neutron subshell are discussed. Of particular interest is the nucleus N-22, where the knockout data provide a sensitive experimental test for a possible halo structure of its ground state. The observation of a narrow momentum distribution of the N-21 fragments, together with an essential 1s(1/2) contribution needed to describe the observed longitudinal-momentum distribution, allow the firm conclusion that the ground state of N-22 is a well-developed nuclear halo. The results also show that the N = 14 subshell in N-22 is somewhat reduced as compared to that of O-23.

neutron-rich nuclei

knockout

halo

be-11

cross-sections

fragmentation

Författare

C. Rodriguez-Tajes

D. Cortina-Gil

H. Alvarez-Pol

T. Aumann

E. Benjamim

J. Benlliure

M. J. G. Borge

M. Caamano

E. Casarejos

A. Chatillon

L. V. Chulkov

K. Eppinger

T. Faestermann

M. Gascon

H. Geissel

R. Gernhauser

Björn Jonson

Chalmers, Teknisk fysik, Subatomär fysik

R. Kanungo

R. Krucken

T. Kurtukian

K. Larsson

P. Maierbeck

Thomas Nilsson

Chalmers, Teknisk fysik, Subatomär fysik

C. Nociforo

Y. Parfenova

C. Pascual-Izarra

A. Perea

D. Perez-Loureiro

A. Prochazka

S. Schwertel

H. Simon

K. Summerer

O. Tengblad

H. Weick

M. Winkler

Mikhail Zhukov

Chalmers, Teknisk fysik, Subatomär fysik

Physical Review C - Nuclear Physics

0556-2813 (ISSN) 1089-490X (eISSN)

Vol. 83 6

Ämneskategorier

Fysik

DOI

10.1103/PhysRevC.83.064313

Mer information

Skapat

2017-10-08