Reorientation-effect measurement of the (2+ 1 Eˆ22+ 1) matrix element in 10Be
Artikel i vetenskaplig tidskrift, 2012

The highly-efficient and segmented TIGRESS gamma-ray spectrometer at TRIUMF has been used to perform a reorientation-effect Coulomb-excitation study of the 2(1)(+) state at 3.368 MeV in Be-10. This is the first Coulomb-excitation measurement that enables one to obtain information on diagonal matrix elements for such a high-lying first excited state from gamma-ray data. With the availability of accurate lifetime data, a value of -0.110 +/- 0.087 eb is determined for the < 2(1)(+)parallel to(E) over cap2 parallel to 2(1)(+)> diagonal matrix element, which assuming the rotor model, leads to a negative spectroscopic quadrupole moment of Q(S)(2(1)(+)) = -0.083 +/- 0.066 eb. This result is in agreement with both no-core shell-model calculations performed in this work with the CD-Bonn 2000 two-nucleon potential and large shell-model spaces, and Green's function Monte Carlo predictions with two-plus three-nucleon potentials.

triumf

tigress

li-7

moments

nuclei

shell

coulomb-excitation

clover detector

Författare

J. N. Orce

Michigan State University

TRIUMF

University of the Western Cape

T. E. Drake

University of Toronto

M. K. Djongolov

TRIUMF

P. Navratil

TRIUMF

Lawrence Livermore National Laboratory

S. Triambak

University of Delhi

TRIUMF

G. C. Ball

TRIUMF

H. Al Falou

TRIUMF

Saint Mary's University

R. Churchman

TRIUMF

D. S. Cross

Simon Fraser University

P. Finlay

University of Guelph

Christian Forssen

Chalmers, Teknisk fysik, Subatomär fysik

A. B. Garnsworthy

TRIUMF

P. E. Garrett

University of Guelph

G. Hackman

TRIUMF

A. B. Hayes

University of Rochester

R. Kshetri

TRIUMF

Simon Fraser University

J. Lassen

TRIUMF

K. G. Leach

University of Guelph

R. Li

TRIUMF

J. Meissner

TRIUMF

C. J. Pearson

TRIUMF

E. T. Rand

University of Guelph

F. Sarazin

Colorado School of Mines

S. K. L. Sjue

TRIUMF

M. A. Stoyer

Lawrence Livermore National Laboratory

C. S. Sumithrarachchi

University of Guelph

C. E. Svensson

University of Guelph

E. R. Tardiff

TRIUMF

A. Teigelhoefer

TRIUMF

S. J. Williams

TRIUMF

J. Wong

University of Guelph

C. Y. Wu

Lawrence Livermore National Laboratory

Physical Review C - Nuclear Physics

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

Vol. 86 041303

Ämneskategorier

Subatomär fysik

Fysik

Fundament

Grundläggande vetenskaper

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

DOI

10.1103/PhysRevC.86.041303