Neutrino masses in models of warped extra dimensions

2003 ◽  
Author(s):  
Stephan J. Huber
Keyword(s):  
Extra Dimensions ◽  
Neutrino Masses ◽  
Warped Extra Dimensions

scholarly journals Gauge-Higgs unification, neutrino masses, and dark matter in warped extra dimensions

2009 ◽  
Vol 79 (9) ◽  
Author(s):  
Marcela Carena ◽  
Anibal D. Medina ◽  
Nausheen R. Shah ◽  
Carlos E. M. Wagner
Keyword(s):  
Dark Matter ◽  
Extra Dimensions ◽  
Neutrino Masses ◽  
Warped Extra Dimensions

scholarly journals Unitarity in KK-graviton production, a case study in warped extra-dimensions

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
A. de Giorgi ◽  
S. Vogl
Keyword(s):  
Extra Dimensions ◽  
Sum Rules ◽  
Effective Theory ◽  
Higher Dimensional ◽  
Massive Spin ◽  
The Matrix ◽  
Dimensional Gravity ◽  
Warped Extra Dimensions ◽  
Kaluza Klein

Abstract The Kaluza-Klein (KK) decomposition of higher-dimensional gravity gives rise to a tower of KK-gravitons in the effective four-dimensional (4D) theory. Such massive spin-2 fields are known to be connected with unitarity issues and easily lead to a breakdown of the effective theory well below the naive scale of the interaction. However, the breakdown of the effective 4D theory is expected to be controlled by the parameters of the 5D theory. Working in a simplified Randall-Sundrum model we study the matrix elements for matter annihilations into massive gravitons. We find that truncating the KK-tower leads to an early breakdown of perturbative unitarity. However, by considering the full tower we obtain a set of sum rules for the couplings between the different KK-fields that restore unitarity up to the scale of the 5D theory. We prove analytically that these are fulfilled in the model under consideration and present numerical tests of their convergence. This work complements earlier studies that focused on graviton self-interactions and yields additional sum rules that are required if matter fields are incorporated into warped extra-dimensions.

scholarly journals Fermion families from two layer warped extra dimensions

2008 ◽  
Vol 2008 (08) ◽  
pp. 065-065 ◽  
Author(s):  
Zhi-qiang Guo ◽  
Bo-Qiang Ma
Keyword(s):  
Extra Dimensions ◽  
Warped Extra Dimensions

scholarly journals Collider phenomenology of Gauge-Higgs unification scenarios in warped extra dimensions

2008 ◽  
Vol 77 (7) ◽  
Author(s):  
Marcela Carena ◽  
Anibal D. Medina ◽  
Boris Panes ◽  
Nausheen R. Shah ◽  
Carlos E. M. Wagner
Keyword(s):  
Extra Dimensions ◽  
Collider Phenomenology ◽  
Warped Extra Dimensions

scholarly journals Radion flavor violation in warped extra dimensions

2012 ◽  
Vol 85 (1) ◽  
Author(s):  
K. Huitu ◽  
S. Khalil ◽  
A. Moursy ◽  
S. K. Rai ◽  
A. Sabanci
Keyword(s):  
Extra Dimensions ◽  
Flavor Violation ◽  
Warped Extra Dimensions

scholarly journals ON FERMION MASS HIERARCHY WITH EXTRA DIMENSIONS

2000 ◽  
Vol 15 (01) ◽  
pp. 29-39 ◽  
Author(s):  
KOICHI YOSHIOKA
Keyword(s):  
Extra Dimensions ◽  
Large Extra Dimensions ◽  
Atmospheric Neutrino ◽  
Fermion Mass ◽  
Neutrino Masses ◽  
Mass Hierarchy ◽  
Mixing Angles ◽  
Four Dimensions ◽  
Matter Fields ◽  
Neutrino Masses And Mixings

Recently, various phenomenological implications of the existence of extra space–time dimensions have been investigated. In this letter, we construct a model with realistic fermion mass hierarchy with (large) extra dimensions beyond the usual four dimensions. In this model, it is assumed that some matter fields live in the bulk and the others are confined to our four-dimensional wall. It can naturally reproduce the quark and lepton mass hierarchy and mixing angles without any symmetry arguments. We also discuss some possibilities of obtaining suitable neutrino masses and mixings for the solar and atmospheric neutrino problems.

Sign in / Sign up

Export Citation Format

Share Document