Leptogenesis in SO(10)

  title={Leptogenesis in SO(10)},
  author={Chee Sheng Fong and Davide Meloni and Aurora Meroni and Enrico Nardi},
  journal={Journal of High Energy Physics},
A bstractWe consider SO(10) Grand Unified Theories (GUTs) with vacuum expectation values (vevs) for fermion masses in the 10+126¯$$ \mathbf{10}+\overline{\mathbf{126}} $$ representation. We show that the baryon asymmetry generated via leptogenesis is completely determined in terms of measured low energy observables and of one single high energy parameter related to the ratio of the 10 and 126¯$$ \overline{\mathbf{126}} $$ SU(2) doublet vevs. We identify new decay channels for the heavy Majorana… 

Supersymmetric SO(10)-inspired leptogenesis and a new N 2 -dominated scenario

We study the supersymmetric extension of SO(10)-inspired thermal leptogenesis showing the constraints on neutrino parameters and on the reheat temperature TRH that derive from the condition of

Leptogenesis in E6 × U(1)A SUSY GUT model

A bstractWe study the thermal leptogenesis in the E6 × U(1)A SUSY GUT model in which realistic masses and mixings of quarks and leptons can be realized. We show that the sufficient baryon number can

Leptogenesis in E6 × U(1)A SUSY GUT model

We study the thermal leptogenesis in the E6 × U(1)A SUSY GUT model in which realistic masses and mixings of quarks and leptons can be realized. We show that the sufficient baryon number can be

Dark matter from the vector of SO(10)

Axion predictions in SO(10) × U(1)PQ models

A bstractNon-supersymmetric Grand Unified SO(10) × U(1)PQ models have all the ingredients to solve several fundamental problems of particle physics and cosmology — neutrino masses and mixing,

Flavoured leptogenesis and CPμτ symmetry

We present a systematic study of leptogenesis in neutrino mass models with μτ-flavoured CP symmetry. In addition to the strong hierarchical N1-dominated scenario (N1DS) in the ‘two flavour regime’ of

Successful N2 leptogenesis with flavour coupling effects in realistic unified models

In realistic unified models involving so-called SO(10)-inspired patterns of Dirac and heavy right-handed (RH) neutrino masses, the lightest right-handed neutrino N1 is too light to yield successful

A predictive and testable unified theory of fermion masses, mixing and leptogenesis

We consider a minimal non-supersymmetric SO(10) Grand Unified Theory (GUT) model that can reproduce the observed fermionic masses and mixing parameters of the Standard Model. We calculate the scales

Flavour effects in gravitational leptogenesis

Within the Type-I seesaw mechanism, quantum effects of the right-handed (RH) neutrinos in the gravitational background lead to an asymmetric propagation of lepton and anti-leptons which induces a

Cosmic Evolution of Lepton Flavor Charges

Chee Sheng Fong1, ∗ 1Centro de Ciências Naturais e Humanas Universidade Federal do ABC, 09.210-170, Santo André, SP, Brazil Abstract In the early Universe above weak scale, both baryon B and lepton L



Squeezing out predictions with leptogenesis from SO(10)

We consider the see-saw mechanism within a non-supersymmetric SO(10) model. By assuming the SO(10) quark-lepton symmetry, and after imposing suitable conditions that ensure that the right-handed (RH)

Neutrino mixing predictions of a minimal SO(10) model with suppressed proton decay

During the past year, a minimal renormalizable supersymmetric SO(10) model has been proposed with the following properties: it predicts a naturally stable dark matter and neutrino mixing angles

Purely Flavored Leptogenesis

We study a model for leptogenesis in which the total CP asymmetries in the decays and scatterings involving the SU(2) singlet seesaw neutrinos N{sub {alpha}} vanish ({epsilon}{sub N{sub {alpha}}}=0).

Yukawa sector in nonsupersymmetric renormalizable SO(10)

We discuss the ordinary, nonsupersymmetric SO(10) as a theory of fermion masses and mixings. We construct two minimal versions of the Yukawa sector based on 126{sub H} and either 10{sub H} or 120{sub

Leptogenesis in a perturbative SO(10) model

We consider a phenomenologically viable SO(10) grand unification model which allows perturbative calculations up to the Planck scale or the string scale. We use a set of Higgs superfields 10++16+45.

A non supersymmetric SO(10) grand unified model for all the physics below MGUT

A bstractWe present a renormalizable non supersymmetric Grand Unified SO(10) model which, at the price of a large fine tuning, is compatible with all compelling phenomenological requirements below

Fermion masses in SO(10) models

We examine many SO(10) models for their viability or otherwise in explaining all the fermion masses and mixing angles. This study is carried out for both supersymmetric and nonsupersymmetric models

Resonant leptogenesis in a predictive SO(10) grand unified model

An SO(10) grand unified model considered previously by the authors featuring lopsided down quark and charged lepton mass matrices is successfully predictive and requires that the lightest two