scholarly journals B−Lviolating nucleon decay and GUT scale baryogenesis inSO(10)

2012 ◽  
Vol 86 (3) ◽  
Author(s):  
K. S. Babu ◽  
R. N. Mohapatra
Keyword(s):  
Nucleon Decay ◽  
Gut Scale

scholarly journals Employing nucleon decay as a fingerprint of SUSY GUT models using SusyTCProton

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Stefan Antusch ◽  
Christian Hohl ◽  
Vasja Susič
Keyword(s):  
Software Tool ◽  
Decay Rates ◽  
Low Energy ◽  
Nucleon Decay ◽  
Mixing Parameters ◽  
Grand Unified Theories ◽  
Fermion Masses ◽  
Unified Theories ◽  
Rich Information ◽  
Gut Scale

Abstract While the observation of nucleon decay would be a smoking gun of Grand Unified Theories (GUTs) in general, the ratios between the decay rates of the various channels carry rich information about the specific GUT model realization. To investigate this fingerprint of GUT models in the context of supersymmetric (SUSY) GUTs, we present the software tool SusyTCProton, which is an extension of the module SusyTC to be used with the REAP package. It allows to calculate nucleon decay rates from the relevant dimension five GUT operators specified at the GUT scale, including the full loop-dressing at the SUSY scale. As an application, we investigate the fingerprints of two example GUT toy models with different flavor structures, performing an MCMC analysis to include the experimental uncertainties for the charged fermion masses and CKM mixing parameters. While both toy models provide equally good fits to the low energy data, we show how they could be distinguished via their predictions of ratios for nucleon decay rates. Together with SusyTCProton we also make the additional module ProtonDecay public. It can be used independently from REAP and allows to calculate nucleon decay rates from given D = 5 and D = 6 operator coefficients (accepting the required SUSY input for the D = 5 case in SLHA format). The D = 6 functionality can also be used to calculate nucleon decay in non-SUSY GUTs.

scholarly journals Nucleon decay in the deuteron

2021 ◽  
pp. 136525
Author(s):  
F. Oosterhof ◽  
J. de Vries ◽  
R.G.E. Timmermans ◽  
U. van Kolck
Keyword(s):  
Nucleon Decay

scholarly journals SUSY breaking constraints on modular flavor S3 invariant SU(5) GUT model

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Xiaokang Du ◽  
Fei Wang
Keyword(s):  
Susy Breaking ◽  
Flavor Symmetry ◽  
Modular Invariance ◽  
Lepton Flavor ◽  
Flavor Structure ◽  
Flavor Mixing ◽  
Breaking Mechanism ◽  
Gut Scale ◽  
Additional Constraints ◽  
Rule Out

Abstract Modular flavor symmetry can be used to explain the quark and lepton flavor structures. The SUSY partners of quarks and leptons, which share the same superpotential with the quarks and leptons, will also be constrained by the modular flavor structure and show a different flavor(mixing) pattern at the GUT scale. So, in realistic modular flavor models with SUSY completion, constraints from the collider and DM constraints can also be used to constrain the possible values of the modulus parameter. In the first part of this work, we discuss the possibility that the S3 modular symmetry can be preserved by the fixed points of T2/ZN orbifold, especially from T2/Z2. To illustrate the additional constraints from collider etc on modular flavor symmetry models, we take the simplest UV SUSY-completion S3 modular invariance SU(5) GUT model as an example with generalized gravity mediation SUSY breaking mechanism. We find that such constraints can indeed be useful to rule out a large portion of the modulus parameters. Our numerical results show that the UV-completed model can account for both the SM (plus neutrino) flavor structure and the collider, DM constraints. Such discussions can also be applied straightforwardly to other modular flavor symmetry models, such as A4 or S4 models.

scholarly journals THE CURRENT PROBLEMS OF THE MINIMAL SO(10) GUT AND THEIR SOLUTIONS

2007 ◽  
Vol 16 (05) ◽  
pp. 1489-1503 ◽  
Author(s):  
TAKESHI FUKUYAMA ◽  
TATSURU KIKUCHI ◽  
NOBUCHIKA OKADA
Keyword(s):  
Predictive Power ◽  
Blow Up ◽  
Gauge Coupling ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Grand Unification ◽  
Warped Extra Dimension ◽  
Gut Scale ◽  
Gauge Couplings ◽  
Yukawa Sector

This talk consists of two parts. In part I we review how the minimal renormalizable supersymmetric SO (10) model, an SO (10) framework with only one 10 and one [Formula: see text] Higgs multiplets in the Yukawa sector, is attractive because of its highly predictive power. Indeed it not only gives a consistent predictions on neutrino oscillation data but also gives reasonable and interesting values for leptogenesis, LFV, muon g - 2, neutrinoless double beta decay etc. However, this model suffers from problems related to running of gauge couplings. The gauge coupling unification may be spoiled due to the presence of Higgs multiplets much lighter than the grand unification (GUT) scale. In addition, the gauge couplings blow up around the GUT scale because of the presence of Higgs multiplets of large representations. In part II we consider the minimal SO (10) model in the warped extra dimension and show a possibility to solve these problems.

Nucleon decay in supersymmetric models via gluino dressed graphs

1984 ◽  
Vol 149 (6) ◽  
pp. 477-481 ◽  
Author(s):  
S. Chadha ◽  
G.D. Coughlan ◽  
M. Daniel ◽  
G.G. Ross
Keyword(s):  
Nucleon Decay ◽  
Supersymmetric Models

scholarly journals On description of the direct nucleon decay of giant resonances

1996 ◽  
Vol 599 (1-2) ◽  
pp. 259-264 ◽  
Author(s):  
G.A. Chekomazov ◽  
S.E. Muraviev ◽  
M.H. Urin
Keyword(s):  
Giant Resonances ◽  
Nucleon Decay

scholarly journals Effect on Jarlskog Determinant Above the GUT Scale Within Four Flavor Neutrino Framework

2021 ◽  
Author(s):  
Vivek Kumar Nautiyal ◽  
Bipin Singh Koranga
Keyword(s):  
Neutrino Mass ◽  
Scale Effects ◽  
Mass Matrix ◽  
Gravitational Interaction ◽  
Planck Scale ◽  
Neutrino Mixing ◽  
Gut Scale ◽  
Jarlskog Determinant ◽  
Planck Scale Effects ◽  
Four Flavor

AbstractWe study the Planck scale effects on Jarlskog determiant in the four flavor framework. On electroweak symmetry breaking, quantum gravitational effects lead to an effective SU(2) × U(1) invariant dimension-5 Lagrangian including neutrino and Higgs forces, which perturbed the neutrino mass term and produce an extra terms in the neutrino mass matrix. We consider that gravitational interaction is independent from flavor and compute the Jarlskog determiant due to Planck scale effects. In the case of leptonic sector, the strentgh of CP violation is measured by Jarlskog determiant. We applied our approach to study Jarlskog determinant in the four flavor neutrino mixing above the GUT scale.

The K.G.F. Nucleon Decay Experiment

1983 ◽  
pp. 25-34 ◽  
Author(s):  
M. R. Krishnaswamy ◽  
M. G. K. Menon ◽  
N. K. Mondal ◽  
V. S. Narasimham ◽  
B. V. Sreekantan ◽  
...  
Keyword(s):  
Nucleon Decay
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