Effective operators in the atomic hyperfine interaction

1984 ◽  
Vol 47 (4) ◽  
pp. 345-398 ◽  
Author(s):  
I Lindgren
Keyword(s):  
Hyperfine Interaction ◽  
Effective Operators

Three-particle effective operators of f → f transition theory

1997 ◽  
Vol 92 (5) ◽  
pp. 847-854 ◽  
Author(s):  
LIDIA SMENTEK ◽  
B.ANDES HESS
Keyword(s):  
Transition Theory ◽  
Effective Operators

HYPERFINE INTERACTION STUDIES OF CHEVREL PHASE SUPERCONDUCTORS

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-367-C6-368 ◽  
Author(s):  
C. W. Kimball ◽  
van Landuyt ◽  
C. Barnett ◽  
G. K. Shenoy ◽  
B. D. Dunlap ◽  
...  
Keyword(s):  
Hyperfine Interaction ◽  
Chevrel Phase ◽  
Interaction Studies

The electric hyperfine interaction in the F2-Molecule and in some tri- and tetrafluorides

1983 ◽  
Vol 16 (1-4) ◽  
pp. 901-906 ◽  
Author(s):  
H. Barfuß ◽  
G. Böhnlein ◽  
F. Gubitz ◽  
W. Kreische ◽  
B. Röseler
Keyword(s):  
Hyperfine Interaction

ENDOR of gadolinium ion in SrCl2: A study of the hyperfine interaction

1980 ◽  
Vol 37 (2) ◽  
pp. 195-204 ◽  
Author(s):  
D. Van Ormondt ◽  
K.V. Reddy ◽  
M.A. Van Ast ◽  
H.W. Den Hartog ◽  
E.J. Bijvank
Keyword(s):  
Hyperfine Interaction

scholarly journals Accidental SO(10) axion from gauged flavour

2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Luca Di Luzio
Keyword(s):  
Mass Window ◽  
High Quality ◽  
High Scale ◽  
Quality Problem ◽  
Axion Mass ◽  
Grand Unified Theories ◽  
Unified Theories ◽  
Canonical Dimension ◽  
General Perspective ◽  
Effective Operators

Abstract An accidental U(1) Peccei-Quinn (PQ) symmetry automatically arises in a class of SO(10) unified theories upon gauging the SU(3)f flavour group. The PQ symmetry is protected by the ℤ4 × ℤ3 center of SO(10) × SU(3)f up to effective operators of canonical dimension six. However, high-scale contributions to the axion potential posing a PQ quality problem arise only at d = 9. In the pre-inflationary PQ breaking scenario the axion mass window is predicted to be ma ∈ [7 × 10−8, 10−3] eV, where the lower end is bounded by the seesaw scale and the upper end by iso-curvature fluctuations. A high-quality axion, that is immune to the PQ quality problem, is obtained for ma ≳ 2 0.02 eV. We finally offer a general perspective on the PQ quality problem in grand unified theories.

Hyperfine interaction of the 5 $\mathsf{d}$ impurities in hexagonal Co

2003 ◽  
Vol 35 (4) ◽  
pp. 449-463 ◽  
Author(s):  
G. Seewald ◽  
B. Hinfurtner ◽  
E. Zech ◽  
E. Hagn ◽  
A. Burchard ◽  
...  
Keyword(s):  
Hyperfine Interaction
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