Mass generation within conformal invariant theories

1981 ◽  
Vol 31 (7) ◽  
pp. 248-252
Author(s):  
M. Flato ◽  
M. Guenin
Keyword(s):  
Conformal Invariant ◽  
Mass Generation

scholarly journals Spontaneous Mass Generation in Conformal-Invariant  4 Theory

1980 ◽  
Vol 64 (5) ◽  
pp. 1800-1813
Author(s):  
Y. Matsubara
Keyword(s):  
Conformal Invariant ◽  
Mass Generation

Mass generation in a conformal invariant Salam-Weinberg model

1984 ◽  
Vol 145 (1-2) ◽  
pp. 85-87 ◽  
Author(s):  
R. Floreanini ◽  
S. Mignemi ◽  
Ö. Oguz
Keyword(s):  
Conformal Invariant ◽  
Mass Generation

Mass Generation by a Massless Scalar Field

2020 ◽  
Vol 26 (4) ◽  
pp. 358-372
Author(s):  
A. P. Lelyakov
Keyword(s):  
Scalar Field ◽  
Massless Scalar ◽  
Massless Scalar Field ◽  
Mass Generation

Dynamical mass generation in QED with weak magnetic fields

2006 ◽  
Author(s):  
A. Ayala ◽  
A. Bashir ◽  
A. Raya ◽  
E. Rojas
Keyword(s):  
Magnetic Fields ◽  
Mass Generation ◽  
Dynamical Mass ◽  
Weak Magnetic Fields ◽  
Dynamical Mass Generation

scholarly journals Real and imaginary mass generation in the presence of external fields and axions

2003 ◽  
Vol 2003 (09) ◽  
pp. 044-044
Author(s):  
Eduardo I Guendelman ◽  
Stefano Ansoldi ◽  
Euro Spallucci
Keyword(s):  
External Fields ◽  
Mass Generation

scholarly journals Fermion and meson mass generation in non-Hermitian Nambu–Jona-Lasinio models

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Alexander Felski ◽  
S. P. Klevansky
Keyword(s):  
Meson Mass ◽  
Mass Generation

scholarly journals Relaxing cosmological neutrino mass bounds with unstable neutrinos

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
Miguel Escudero ◽  
Jacobo Lopez-Pavon ◽  
Nuria Rius ◽  
Stefan Sandner
Keyword(s):  
Neutrino Mass ◽  
Particle Physics ◽  
Goldstone Boson ◽  
Mass Scale ◽  
Simple Extension ◽  
Type I ◽  
Mass Generation ◽  
Age Of The Universe ◽  
Neutrino Mass Models ◽  
The Right

Abstract At present, cosmological observations set the most stringent bound on the neutrino mass scale. Within the standard cosmological model (ΛCDM), the Planck collaboration reports ∑mv< 0.12 eV at 95 % CL. This bound, taken at face value, excludes many neutrino mass models. However, unstable neutrinos, with lifetimes shorter than the age of the universe τν ≲ tU, represent a particle physics avenue to relax this constraint. Motivated by this fact, we present a taxonomy of neutrino decay modes, categorizing them in terms of particle content and final decay products. Taking into account the relevant phenomenological bounds, our analysis shows that 2-body decaying neutrinos into BSM particles are a promising option to relax cosmological neutrino mass bounds. We then build a simple extension of the type I seesaw scenario by adding one sterile state ν4 and a Goldstone boson ϕ, in which νi→ ν4ϕ decays can loosen the neutrino mass bounds up to ∑mv ∼ 1 eV, without spoiling the light neutrino mass generation mechanism. Remarkably, this is possible for a large range of the right-handed neutrino masses, from the electroweak up to the GUT scale. We successfully implement this idea in the context of minimal neutrino mass models based on a U(1)μ−τ flavor symmetry, which are otherwise in tension with the current bound on ∑mv.

scholarly journals Mass generation with adjoint fermions

2012 ◽  
Vol 713 (3) ◽  
pp. 335-341
Author(s):  
Yu.A. Simonov
Keyword(s):  
Mass Generation

Unitarity Bound on the Scale of Fermion Mass Generation

1987 ◽  
Vol 59 (21) ◽  
pp. 2405-2407 ◽  
Author(s):  
T. Appelquist ◽  
M. S. Chanowitz
Keyword(s):  
Fermion Mass ◽  
Mass Generation ◽  
Unitarity Bound
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