Electroweak naturalness in the three-flavor type I seesaw model and implications for leptogenesis

Clarke, Jackson D.; Foot, R.; Volkas, Raymond R.

doi:10.1103/physrevd.91.073009

Cited by 68 publications

(64 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…≲ × GeV on the lightest RH neutrino mass [83][84][85][86]. Supergravity models of inflation impose an additional upper bound on the reheating temperature T 10 10…”

Section: Heavy Sterile Neutrinos At Collidersmentioning

confidence: 99%

Neutrinos and Collider Physics

Deppisch

2017

Particle Physics at the Year of Light

View full text Add to dashboard Cite

We review the collider phenomenology of neutrino physics and the synergetic aspects at energy, intensity and cosmic frontiers to test the new physics behind the neutrino mass mechanism. In particular, we focus on seesaw models within the minimal setup as well as with extended gauge and/or Higgs sectors, and on supersymmetric neutrino mass models with seesaw mechanism and with Rparity violation. In the simplest type-I seesaw scenario with sterile neutrinos, we summarize and update the current experimental constraints on the sterile neutrino mass and its mixing with the active neutrinos. We also discuss the future experimental prospects of testing the seesaw mechanism at colliders and in related low-energy searches for rare processes, such as lepton flavor violation and neutrinoless double beta decay. The implications of the discovery of lepton number violation at the Large Hadron Collider for leptogenesis are also studied.

show abstract

“…≲ × GeV on the lightest RH neutrino mass [83][84][85][86]. Supergravity models of inflation impose an additional upper bound on the reheating temperature T 10 10…”

Section: Heavy Sterile Neutrinos At Collidersmentioning

confidence: 99%

Neutrinos and Collider Physics

Deppisch

2017

Particle Physics at the Year of Light

View full text Add to dashboard Cite

show abstract

“…In the inverse hierarchy case, successful leptogenesis can be realized with M 1 ∼ 10 13 GeV. The naturalness of the 125 GeV Higgs boson prefers a much lower mass of heavy neutrino [31]. Taking this into account, the authors of [30] studied resonant leptogenesis with a nearly-degenerate mass spectrum, finding that sufficient baryon asymmetry can be generated if M 1 < 4 × 10 7 GeV.…”

Section: Comparison To Other Frameworkmentioning

confidence: 99%

Completing constrained flavor violation: Lepton masses, neutrinos, and leptogenesis

Cline¹,

Díaz-Furlong²,

Ren³

2016

Phys. Rev. D

View full text Add to dashboard Cite

Constrained flavor violation is a recent proposal for predicting the down-quark Yukawa matrix in terms of those for up quarks and charged leptons. We study the viability of CFV with respect to its predictions for the lepton mass ratios, showing that this remains a challenge, and suggest some possible means for improving this shortcoming. We then extend CFV to include neutrinos, and show that it leads to interesting predictions for hierachical heavy neutrinos, and leptogenesis dominated by decays of the second heaviest one ("N2 leptogenesis"), as well as the possibility of low-scale leptoquark-mediated exotic decays.

show abstract

“…The type-1 upper bound was first computed by Vissani 24 to be 3 × 10 7 GeV, if the Higgs self-energy graph from neutrino Yukawa interactions is not to produce a correction to the µ 2 parameter in the Higgs potential greater than (1 TeV) 2 . This one-family result has recently been generalised to the realistic three-family case, 25 producing the bounds…”

Section: -7mentioning

confidence: 99%

Searching for radiative neutrino mass generation at the LHC

Volkas

2015

Int. J. Mod. Phys. A

Self Cite

View full text Add to dashboard Cite

In this talk, I describe the general characteristics of radiative neutrino mass models that can be probed at the LHC. I then cover the specific constraints on a new, explicit model of this type.Keywords: Neutrino; radiative mass generation; effective operators; flavor-violation constraints; LHC constraints See-saw versus radiative neutrino mass generationMany models of radiative neutrino mass are possible, some of which have been analysed in depth, while others have been examined only briefly, with quite a number yet to be explicitly written down let alone analysed. A useful organising principle for Majorana neutrino mass models is to use standard model (SM) effective operators that violate lepton number conservation by two units (∆L = 2 operators) as a base from which to construct new theories. 1-7Restricting ourselves to operators containing SM fermions and a single Higgs doublet, they occur at odd mass dimensions, with the lowest order one occurring at d = 5. That operator is the famous Weinberg operator, which has the schematic structure LLHH, where L is a lepton doublet and H the Higgs doublet. After electroweak symmetry breaking, this operator (actually a set of operators because of the family structure) directly induces a Majorana neutrino mass for left-handed (LH) neutrinos given by the see-saw formula,where M is the scale of the new physics that gives rise to the operator in the low-energy limit. Underlying renormalisable theories yielding LLHH are constructed by "opening up" the operator. The type-1,-2 and -3 see-saw models are the minimal, tree-level ways to open up LLHH. [8][9][10][11][12][13][14][15][16][17][18][19] By starting with the effective operator, one may systematically construct all of the minimal underlying models.Other ∆L = 2 effective operators have mass dimension seven or higher and feature other lepton and quark fields in their expression, except for those in the

show abstract

Electroweak naturalness in the three-flavor type I seesaw model and implications for leptogenesis

Cited by 68 publications

References 28 publications

Neutrinos and Collider Physics

Neutrinos and Collider Physics

Completing constrained flavor violation: Lepton masses, neutrinos, and leptogenesis

Searching for radiative neutrino mass generation at the LHC

Contact Info

Product

Resources

About