Leptogenesis constraints on B − L breaking Higgs boson in TeV scale seesaw models

Dev, P. S. Bhupal; Mohapatra, Rabindra N.

doi:10.1007/jhep03(2018)122

Cited by 43 publications

(25 citation statements)

References 187 publications

(276 reference statements)

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“…In both vanilla as well as resonant leptogenesis, it is assumed that right handed neutrinos were produced thermally in the early universe along with other SM particles. For earlier works on thermal leptogenesis in gauged B − L model, please refer to [121][122][123] and references therein. Due to the presence of gauge interactions of right handed neutrinos in this model, there exist additional washout processes erasing the created asymmetry which leads to tight constraints on such B − L gauge sectors, specially for low scale leptogenesis.…”

Section: Leptogenesismentioning

confidence: 99%

Cosmic inflation in minimal $$U(1)_{B-L}$$ model: implications for (non) thermal dark matter and leptogenesis

2021

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We study the possibility of realising cosmic inflation, dark matter (DM), baryon asymmetry of the universe (BAU) and light neutrino masses in non-supersymmetric minimal gauged $$B-L$$ B - L extension of the standard model with three right handed neutrinos. The singlet scalar field responsible for spontaneous breaking of $$B-L$$ B - L gauge symmetry also plays the role of inflaton by virtue of its non-minimal coupling to gravity. While the lightest right handed neutrino is the DM candidate, being stabilised by an additional $$Z_2$$ Z 2 symmetry, we show by performing a detailed renormalisation group evolution (RGE) improved study of inflationary dynamics that thermal DM is generally overproduced due to insufficient annihilations through gauge and scalar portals. This happens due to strict upper limits obtained on gauge and other dimensionless couplings responsible for DM annihilation while assuming the non-minimal coupling to gravity to be at most of order unity. The non-thermal DM scenario is viable, with or without $$Z_2$$ Z 2 symmetry, although in such a case the $$B-L$$ B - L gauge sector remains decoupled from the inflationary dynamics due to tiny couplings. We also show that the reheat temperature predicted by the model prefers non-thermal leptogenesis with hierarchical right handed neutrinos while being consistent with other requirements.

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Section: Leptogenesismentioning

confidence: 99%

Cosmic inflation in minimal $$U(1)_{B-L}$$ model: implications for (non) thermal dark matter and leptogenesis

2021

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“…Because of the flavoured symmetry, the proper structure of Yukawa interactions cannot be generated in the simplest setup. To generate the proper Yukawa matrices, one may introduce (I) U(1) (B−L) 3 -charged scalars in addition to U(1) (B−L) 3 -neutral vector-like fermions that mix with the SM quarks and leptons [20]; or (II) an additional Higgs doublet that is charged under U(1) (B−L) 3 [34][35][36]. The additional fields lead to additional collider constraints on the model; e.g., vector-like fermions should be heavier than TeV [20].…”

Section: Modelmentioning

confidence: 99%

Self-interacting dark matter with a vector mediator: kinetic mixing with the $$ \mathrm{U}{(1)}_{{\left(B-L\right)}_3} $$ gauge boson

Kamada

Yamada

Yanagida

2019

J. High Energ. Phys.

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A spontaneously broken hidden U(1) h gauge symmetry can explain both the dark matter stability and the observed relic abundance. In this framework, the light gauge boson can mediate the strong dark matter self-interaction, which addresses astrophysical observations that are hard to explain in collisionless cold dark matter. Motivated by flavoured grand unified theories, we introduce right-handed neutrinos and a flavoured B − L gauge symmetry for the third family U(1) (B−L) 3. The unwanted relic of the U(1) h gauge boson decays into neutrinos via the kinetic mixing with the U(1) (B−L) 3 gauge boson. Indirect detection bounds on dark matter are systematically weakened, since dark matter annihilation results in neutrinos. However, the kinetic mixing between U(1) (B−L) 3 and U(1) Y gauge bosons are induced by quantum corrections and leads to an observable signal in direct and indirect detection experiments of dark matter. This model can also explain the baryon asymmetry of the Universe via the thermal leptogenesis. In addition, we discuss the possibility of explaining the lepton flavour universality violation in semi-leptonic B meson decays that is recently found in the LHCb experiment.

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“…As usual we have to ensure that at least one sterile neutrino does not equilibrate before T EW (see [105,106] for a recent discussion in the standard high-scale or resonant leptogenesis). As in the previous cases we have to consider the decay σ → N i N i and the annihilation into majorons, Fig.…”

Section: Majoron Modelmentioning

confidence: 99%

Leptogenesis from oscillations and dark matter

2019

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An extension of the Standard Model with Majorana singlet fermions in the 1-100 GeV range can explain the light neutrino masses and give rise to a baryon asymmetry at freeze-in of the heavy states, via their CP-violating oscillations. In this paper we consider extending this scenario to also explain dark matter. We find that a very weakly coupled B − L gauge boson, an invisible QCD axion model, and the singlet majoron model can simultaneously account for dark matter and the baryon asymmetry.

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Leptogenesis constraints on B − L breaking Higgs boson in TeV scale seesaw models

Cited by 43 publications

References 187 publications

Cosmic inflation in minimal $$U(1)_{B-L}$$ model: implications for (non) thermal dark matter and leptogenesis

Cosmic inflation in minimal $$U(1)_{B-L}$$ model: implications for (non) thermal dark matter and leptogenesis

Self-interacting dark matter with a vector mediator: kinetic mixing with the $$ \mathrm{U}{(1)}_{{\left(B-L\right)}_3} $$ gauge boson

Leptogenesis from oscillations and dark matter

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