Isovector M-1 transitions in Si-28 and the role of meson exchange currents - INSPIRE

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Isovector M-1 transitions in Si-28 and the role of meson exchange currents

Jan, 1996

3 pages

Published in:

Phys.Rev.C 53 (1996) 127-130

DOI:

10.1103/PhysRevC.53.127

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Abstract: (APS)

At the newly installed 180° Darmstadt electron scattering facility we have measured the isovector M1 transition strengths in Si28 in the excitation energy range from 10 to 18 MeV. Overall agreement with a shell-model calculation using the unified sd-shell interaction and effective g factors is obtained. Comparison with Gamow-Teller strength deduced from (p,n) data reveals the presence of meson exchange current contributions of the order of 25% to the summed M1 transition strength. © 1996 The American Physical Society.

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References(15)

Figures(0)

Quenching of spin matrix elements in nuclei

I.S. Towner
(
- Chalk River, AECL
)

- Phys.Rept. 155 (1987) 263-377
•
DOI:
- 10.1016/0370-1573(87)90138-4

- Prog.Part.Nucl.Phys. 34 261

Empirical strengths of spi operators in nuclei

B.H. Wildenthal
(
- Michigan State U.
)

- Prog.Part.Nucl.Phys. 11 (1984) 5-51
•
DOI:
- 10.1016/0146-6410(84)90011-5

Status of the nuclear shell model

- Ann.Rev.Nucl.Part.Sci. 38 (1988) 29-66
•
DOI:
- 10.1146/annurev.ns.38.120188.000333

Empirically optimum M1 operator for sd-shell nuclei

- Nucl.Phys.A 474 (1987) 290-306
•
DOI:
- 10.1016/0375-9474(87)90619-1

- Phys.Rev.Lett. 65 2519

Gamow-Teller strength in the (p, n) reaction at 136 MeV on Ne-20, Mg-24, and Si-28

et al.

- Phys.Rev.C 43 (1991) 50-58
•
DOI:
- 10.1103/PhysRevC.43.50

Excitation and decay of giant resonances in the Ca-40 (e, e'x) reaction

H. Diesener
(
- Darmstadt, Tech. Hochsch.
)
,
U. Helm
(
- Darmstadt, Tech. Hochsch.
)
,
G. Herbert
(
- Darmstadt, Tech. Hochsch.
)
,
V. Huck
(
- Darmstadt, Tech. Hochsch.
)
,
P. von Neumann-Cosel
(
- Darmstadt, Tech. Hochsch.
)

et al.

- Phys.Rev.Lett. 72 (1994) 1994-1997
•
DOI:
- 10.1103/PhysRevLett.72.1994

High resolution inelastic electron scattering on 28 Si at low momentum transfer and isovector m1 strength in 28 Si

et al.

- Nucl.Phys.A 323 (1979) 13-25
•
DOI:
- 10.1016/0375-9474(79)90413-5

Energy levels of A = 21-44 nuclei. 8.

P.M. Endt
(
- Utrecht U.
)

- Nucl.Phys.A 521 (1990) 1-400
•
DOI:
- 10.1016/0375-9474(90)90598-G

High Resolution electron Scattering Facility at the Darmstadt Linear Accelerator (DALINAC). 2. Beam Transport System and Spectrometer (Energy Loss System)

Th. Walcher
(
- Darmstadt, Tech. Hochsch.
)
,
R. Frey
(
- Darmstadt, Tech. Hochsch.
)
,
H.-D. Graf
(
- Darmstadt, Tech. Hochsch.
)
,
E. Spamer
(
- Darmstadt, Tech. Hochsch.
)
,
H. Theissen
(
- Darmstadt, Tech. Hochsch.
)

- Nucl.Instrum.Meth. 153 (1978) 17
•
DOI:
- 10.1016/0029-554X(78)90612-2

Isovector and isoscalar spin-flip excitations in even-even s-d shell nuclei excited by inelastic proton scattering

G.M. Crawley
(
- Michigan State U., NSCL and
- Michigan State U.
)
,
C. Djalali
(
- Michigan State U., NSCL and
- Michigan State U.
)
,
N. Marty
(
- Michigan State U., NSCL and
- Michigan State U.
)
,
M. Morlet
(
- Michigan State U., NSCL and
- Michigan State U.
)
,
A. Willis
(
- Michigan State U., NSCL and
- Michigan State U.
)

et al.

- Phys.Rev.C 39 (1989) 311-323
•
DOI:
- 10.1103/PhysRevC.39.311

CORRECTIONS TO THE SINGLE PARTICLE M1 AND GAMOW-TELLER MATRIX ELEMENTS

I.S. Towner
(
- Chalk River, AECL
)
,
F.C. Khanna
(
- Chalk River, AECL
)

- Nucl.Phys.A 399 (1983) 334-364,
- Nucl. Phys. A399 ( 1983) 334-364
•
DOI:
- 10.1016/0375-9474(83)90252-X

- J.Phys.G 13 1119

Meson exchange current effects on magnetic dipole moments of p shell nuclei

J.G.L. Booten
(
- Utrecht U.
)
,
A.G.M. van Hees
(
- Utrecht U.
)
,
P.W.M. Glaudemans
(
- Utrecht U.
)
,
R. Wervelman
(
- Netherlands Energy Res. Found.
)

- Phys.Rev.C 43 (1991) 335-342
•
DOI:
- 10.1103/PhysRevC.43.335