scholarly journals Extended Scalar Sectors, Effective Operators and Observed Data

2021 ◽  
pp. 195-203
Author(s):  
Atri Dey ◽  
Jayita Lahiri ◽  
Biswarup Mukhopadhyaya
Keyword(s):  
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

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.

Effective operators for the nuclear shell model

1971 ◽  
Vol 164 (3) ◽  
pp. 612-630 ◽  
Author(s):  
F.C. Khanna ◽  
H.C. Lee ◽  
M. Harvey
Keyword(s):  
Shell Model ◽  
Nuclear Shell Model ◽  
Nuclear Shell ◽  
Effective Operators

scholarly journals Effective operators in two-nucleon systems

2018 ◽  
Vol 98 (6) ◽  
Author(s):  
James P. Vary ◽  
Robert Basili ◽  
Weijie Du ◽  
Matthew Lockner ◽  
Pieter Maris ◽  
...  
Keyword(s):  
Effective Operators

scholarly journals Effective operators in a single-jorbital

2018 ◽  
Vol 45 (3) ◽  
pp. 035102
Author(s):  
E Derbali ◽  
P Van Isacker ◽  
B Tellili ◽  
C Souga
Keyword(s):  
Effective Operators

scholarly journals On the evaporation of solar dark matter: spin-independent effective operators

2016 ◽  
Vol 2016 (09) ◽  
pp. 018-018 ◽  
Author(s):  
Zheng-Liang Liang ◽  
Yue-Liang Wu ◽  
Zi-Qing Yang ◽  
Yu-Feng Zhou
Keyword(s):  
Dark Matter ◽  
Effective Operators

scholarly journals ELECTROMAGNETIC TRANSITIONS WITH EFFECTIVE OPERATORS

2005 ◽  
Vol 14 (01) ◽  
pp. 95-103 ◽  
Author(s):  
IONEL STETCU ◽  
BRUCE R. BARRETT ◽  
PETR NAVRÁTIL ◽  
CALVIN W. JOHNSON
Keyword(s):  
Effective Interaction ◽  
The Other ◽  
Core Shell ◽  
Body System ◽  
Cluster Approximation ◽  
Expectation Values ◽  
Model Spaces ◽  
Reduced Space ◽  
Model Formalism ◽  
Effective Operators

In the no-core shell model formalism we compute effective one- and two-body operators, using the Lee–Suzuki procedure within the two-body cluster approximation. We evaluate the validity of the latter through calculations in reduced model spaces. In particular, we test the results for the two-body system and find that indeed the effective operators in the reduced space reproduce the expectation values or transition strengths computed in the full space. On the other hand, the renormalization for operators in the case of 6Li is very weak, suggesting the need for higher-body clusters in computing the effective interaction.

scholarly journals Neutrino masses from higher thand= 5 effective operators

2009 ◽  
Vol 2009 (10) ◽  
pp. 076-076 ◽  
Author(s):  
F Bonnet ◽  
D Hernandez ◽  
T Ota ◽  
W Winter
Keyword(s):  
Neutrino Masses ◽  
Effective Operators
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