scholarly journals Hierarchy problem and dimension-six effective operators

2020 ◽  
Vol 102 (7) ◽  
Author(s):  
Ambalika Biswas ◽  
Anirban Kundu ◽  
Poulami Mondal
Keyword(s):  
Hierarchy Problem ◽  
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

Topology knots and hierarchy problem

2019 ◽  
Author(s):  
Vitaly Kuyukov
Keyword(s):  
Quantum Theory ◽  
String Theory ◽  
Quantum Gravity ◽  
Dimensional Space ◽  
Space Time ◽  
Elementary Particles ◽  
Hierarchy Problem ◽  
Topological Quantum ◽  
Dimensional Space Time ◽  
New Formula

Many approaches to quantum gravity consider the revision of the space-time geometry and the structure of elementary particles. One of the main candidates is string theory. It is possible that this theory will be able to describe the problem of hierarchy, provided that there is an appropriate Calabi-Yau geometry. In this paper we will proceed from the traditional view on the structure of elementary particles in the usual four-dimensional space-time. The only condition is that quarks and leptons should have a common emerging structure. When a new formula for the mass of the hierarchy is obtained, this structure arises from topological quantum theory and a suitable choice of dimensional units.

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.

scholarly journals Solution to the hierarchy problem from an almost decoupled hidden sector within a classically scale invariant theory

2008 ◽  
Vol 77 (3) ◽  
Author(s):  
Robert Foot ◽  
Archil Kobakhidze ◽  
Kristian L. McDonald ◽  
Raymond R. Volkas
Keyword(s):  
Invariant Theory ◽  
Hierarchy Problem ◽  
Scale Invariant ◽  
Hidden Sector

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 Inflating intersecting branes and remarks on the hierarchy problem

2000 ◽  
Vol 472 (3-4) ◽  
pp. 302-308 ◽  
Author(s):  
J. Cline ◽  
C. Grojean ◽  
G. Servant
Keyword(s):  
Hierarchy Problem

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
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