Reorientation-effect measurement of the (2+ 1 Eˆ22+ 1) matrix element in 10Be
Journal article, 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.
tigress
clover detector
moments
nuclei
triumf
li-7
shell
coulomb-excitation
Author
J. N. Orce
Michigan State University
University of the Western Cape
TRIUMF
T. E. Drake
University of Toronto
M. K. Djongolov
TRIUMF
P. Navratil
TRIUMF
Lawrence Livermore National Laboratory
S. Triambak
TRIUMF
University of Delhi
G. C. Ball
TRIUMF
H. Al Falou
Saint Mary's University
TRIUMF
R. Churchman
TRIUMF
D. S. Cross
Simon Fraser University
P. Finlay
University of Guelph
Christian Forssen
Chalmers, Applied Physics, Subatomic Physics
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
24699985 (ISSN) 24699993 (eISSN)
Vol. 86 4 041303Subject Categories
Subatomic Physics
Physical Sciences
Roots
Basic sciences
Infrastructure
C3SE (Chalmers Centre for Computational Science and Engineering)
DOI
10.1103/PhysRevC.86.041303