One-loop Dirac neutrino mass and mixed axion-WIMP dark matter

Carvajal, C. D. R.; Zapata, Óscar

doi:10.1103/physrevd.99.075009

Cited by 25 publications

(10 citation statements)

References 108 publications

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“…[637,638], while extensions based on the type-II (III) seesaw and other radiative neutrino mass models were explored later on [639][640][641]. Scenarios implementing Dirac neutrinos have also been discussed [642][643][644][645]. The latter, however, miss the main motivation behind the axion-neutrino connection, that is the identification of the PQ scale with the scale suppressing neutrino masses.…”

Section: Axions and Neutrino Massesmentioning

confidence: 99%

The landscape of QCD axion models

et al. 2020

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Section: Axions and Neutrino Massesmentioning

confidence: 99%

The landscape of QCD axion models

et al. 2020

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“…There are many attempts to connect axion and neutrino mass in the literature [9][10][11][12][13][14][15][16][17].…”

Section: Scalar Fieldsmentioning

confidence: 99%

Dirac neutrino from the breaking of Peccei-Quinn symmetry

Baek

2020

Physics Letters B

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We propose a model where Dirac neutrino mass is obtained from small vacuum expectation value (VEV) of neutrino-specific Higgs doublet without fine-tuning problem. The small VEV results from a seesaw-like formula with the high energy scale identified as the Peccei-Quinn (PQ) symmetry breaking scale. Axion can be introducedà la KSVZ or DFSZ. The model suggests neutrino mass, solution to the strong CP problem, and dark matter may be mutually interconnected.

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“…To obtain Dirac neutrinos one must break U (1) B−L → Z n with n ≥ 3 as the residual subgroup Z 2 always leads to Majorana neutrinos in accordance with (2). While traditionally mass models for Majorana neutrinos have garnered lot of attention, in recent years Dirac neutrino mass models are enjoying a resurgence of sorts with various seesaw [20,21,23,[31][32][33][36][37][38][39][40][41][42][43] and loops models [15,22,24,25,27,28,[44][45][46][47][48][49][50][51][52][53] considered in literature 4 . The operator based classification of such models at dimension-4 [58], dimension-5 [13,59] and dimension-6 [60,61] have also been considered.…”

Section: Residual Symmetries and The Neutrino Naturementioning

confidence: 99%

The role of residual symmetries in dark matter stability and the neutrino nature

Bonilla¹,

Peinado²,

Srivastava

2019

LHEP

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We consider the class of models where Dirac neutrino masses at one loop and the dark matter stability can be obtained using only the global U (1) B−L symmetry already present in Standard Model. We discuss how the residual Z n subgroup, left unbroken after the breaking of U (1) B−L , dictates the neutrino nature, namely if they are Dirac or Majorana particles, as well as determines the stability of the dark matter candidate in such models. In particular, we show that without the correct breaking of U (1) B−L to an appropriate residual Z n symmetry, the Dirac nature of neutrinos and/or dark matter stability might be lost. For completeness we also provide some examples where the dark matter stability is accidental or lost completely. Finally, we discuss one example model where the Dirac neutrinos with naturally small one loop masses as well as dark matter stability, are both protected by the same residual Z 6 subgroup, without need for adding any new explicit or accidental symmetries beyond the Standard Model symmetries.1 For analogous framework for Majorana neutrinos see [16]. 2 The idea of obtaining dark matter stability associated to the breaking of U (1) B−L has been explored in [13,[15][16][17][18][19][20][21][22][23][24][25][26][27]. For recent works aimed at obtaining scotogenic stability from extended gauge symmetries see [28,29].

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One-loop Dirac neutrino mass and mixed axion-WIMP dark matter

Cited by 25 publications

References 108 publications

The landscape of QCD axion models

The landscape of QCD axion models

Dirac neutrino from the breaking of Peccei-Quinn symmetry

The role of residual symmetries in dark matter stability and the neutrino nature

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