TeV-Scale Leptogenesis

Dev, P. S. Bhupal

doi:10.1007/978-3-319-25619-1_38

Cited by 6 publications

(1 citation statement)

References 74 publications

(70 reference statements)

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“…Such a low reheat temperature will be inconsistent with models of high scale baryogenesis including those via leptogenesis. Models of electroweak baryogenesis and low scale leptogenesis [53][54][55][56] will then be preferred mechanisms for generating the matter-antimatter asymmetry of the Universe.…”

Section: Results and Conclusionmentioning

confidence: 99%

Gravitino production in a thermal Universe revisited

2017

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We study the production of spin 1/2 gravitinos in a thermal Universe. Taking into account supersymmetry breaking due to the finite thermal energy density of the Universe, there is a large enhancement in the cross section of production of these gravitino states. We consider gravitinos with zero temperature masses of 0.1 eV, 1 keV, 100 GeV and 30 TeV as representative of gauge mediated, gravity mediated and anomaly mediated supersymmetry breaking scenarios. We find that the abundance of gravitinos produced in the early Universe is very high for gravitinos of mass 1 keV and 100 GeV. The gravitino abundances can be sufficiently suppressed if the reheat temperature is less than 100 GeV and $4\cdot 10^4$ gev respectively. However such low reheat temperatures will rule out many models of baryogenesis including those via leptogenesis.Comment: 8 pages, Revte

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Section: Results and Conclusionmentioning

confidence: 99%

Gravitino production in a thermal Universe revisited

2017

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Baryogenesis and Leptogenesis

Dev¹

2019

Springer Proceedings in Physics

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$${M}_{{W}_{R}}$$ dependence of leptogenesis in minimal Left-Right Symmetric Model with different strengths of Type-II seesaw mass

Kakoti,

Das

2024

J. High Energ. Phys.

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Left Right Symmetric Model (LRSM) being an extension of the Standard model of particle physics incorporates within itself Type-I and Type-II seesaw mass terms naturally. Both the mass terms can have significant amount of contribution to the resulting light neutrino mass within the model and hence on the different phenomenology associated within. In this paper, we have thoroughly analyzed and discussed the implications of specifying different weightages to both the mass terms and also the study has been carried out for different values of $${M}_{{W}_{R}}$$ which is mass of the right-handed gauge boson. This paper also gives a deeper insight into the new physics contributions of Neutrinoless Double Beta Decay (0νββ) and their variations with the net baryon asymmetry arising out of the model. Therefore, the main objective of the present paper rests on investigating the implications of imposing different weightage to the type-I and type-II seesaw terms and different values of $${M}_{{W}_{R}}$$ on the new physics contributions of 0νββ and net baryon asymmetry arising out as a result of resonant leptogenesis. LRSM in this work has been realized using modular group of level 3, Γ(3) which is isomorphic to non-abelian discrete symmetry group A4, the advantage being the non-requirement of flavons within the model and hence maintaining the minimality of the model.

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TeV-Scale Leptogenesis

Cited by 6 publications

References 74 publications

Gravitino production in a thermal Universe revisited

Gravitino production in a thermal Universe revisited

Baryogenesis and Leptogenesis

$${M}_{{W}_{R}}$$ dependence of leptogenesis in minimal Left-Right Symmetric Model with different strengths of Type-II seesaw mass

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