Leptonic anomalous magnetic moments in ν SMEFT

Cirigliano, Vincenzo; Dekens, Wouter; Vries, Jordy de; Fuyuto, Kaori; Mereghetti, Emanuele; Ruiz, Richard

doi:10.1007/jhep08(2021)103

Cited by 23 publications

(16 citation statements)

References 142 publications

(175 reference statements)

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“…HeavyN NLO [334,335] and HeavyN Dirac NLO [84,335], which implement the Phenomenological Type I See-saw for Majorana and Dirac-like HNLs, respectively, as well as a variant that includes dimension d = 6 operators [335,469]; VPrime NLO [470], which implements generic W and Z bosons that couple to all fermions;…”

Section: Monte Carlo Developments For Studies At the Lhc And Beyondmentioning

confidence: 99%

The Present and Future Status of Heavy Neutral Leptons

Abdullahi¹,

Alzas²,

Batell³

et al. 2022

Preprint

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Section: Monte Carlo Developments For Studies At the Lhc And Beyondmentioning

confidence: 99%

The Present and Future Status of Heavy Neutral Leptons

Abdullahi¹,

Alzas²,

Batell³

et al. 2022

Preprint

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“…A previous EFT result involving the muon (𝑔 − 2) in the SMEFT can be found in [15]. A recent analysis studying in addition neutron electric dipole operators in the SMEFT is given in [16] and an EFT analysis in the 𝜈SMEFT can be found in [17]. Here we describe the results obtained in Ref.…”

Section: Introductionmentioning

confidence: 68%

EFT description of the muon magnetic dipole moment

Aebischer¹

2021

Preprint

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An Effective Field Theory (EFT) analysis of the magnetic moment of the muon is discussed. The expression for the dipole moment is given in terms of operator coefficients of the low-energy effective field theory (LEFT) and the Standard Model effective field theory (SMEFT), where oneloop renormalization group improved perturbation theory, the one-loop matching from SMEFT onto LEFT as well as one-loop lepton matrix elements of the effective-theory operators were taken into account. Interestingly only a very limited set of the SMEFT operators is able to explain the current deviation of the magnetic moment of the muon from its Standard Model expectation.

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“…Interesting minimal scenarios of LNV that could be studied in this way include the phenomenological Type-I seesaw and its combination with Type-II and -III seesaw models [31, 34-36, 47, 48, 101-105], which extend the Standard Model by additional sterile fermions, scalar triplets, or triplet fermion fields, respectively. Models with somewhat increased complexity include the Zee model of neutrino masses [106], R-parity violating supersymmetry [107][108][109], LNV scenarios involving leptoquarks, which in some cases can address anomalies observed in B decays [110][111][112], scenarios that can account for the discrepancy with the anomalous magnetic dipole moment of the muon [113], or the minimal left-right symmetric model [114][115][116][117][118], which in the limit of heavy gauge bosons reduces to a Type I+II seesaw model. Connections between 0νββ experiments and signals at the LHC in the left-right symmetric model have also been studied [54,77,95,119,120].…”

Section: B Lepton Number Violation At the Tev Scalementioning

confidence: 99%

Neutrinoless Double-Beta Decay: A Roadmap for Matching Theory to Experiment

Cirigliano¹,

Davoudi²,

Dekens³

et al. 2022

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The observation of neutrino oscillations and hence non-zero neutrino masses provided a milestone in the search for physics beyond the Standard Model. But even though we now know that neutrinos are massive, the nature of neutrino masses, i.e., whether they are Dirac or Majorana, remains an open question. A smoking-gun signature of Majorana neutrinos is the observation of neutrinoless double-beta decay, a process that violates the lepton-number conservation of the Standard Model. This white paper focuses on the theoretical aspects of the neutrinoless double-beta decay program and lays out a roadmap for future developments. The roadmap is a multi-scale path starting from high-energy models of neutrinoless double-beta decay all the way to the low-energy nuclear many-body problem that needs to be solved to supplement measurements of the decay rate. The path goes through a systematic effective-field-theory description of the underlying processes at various scales and needs to be supplemented by lattice quantum chromodynamics input. The white paper also discusses the interplay between neutrinoless double-beta decay, experiments at the Large Hadron Collider and results from astrophysics and cosmology in probing simplified models of lepton-number violation at the TeV scale, and the generation of the matter-antimatter asymmetry via leptogenesis. This white paper is prepared for the topical groups TF11 (Theory of Neutrino Physics), TF05 (Lattice Gauge Theory), RF04 (Baryon and Lepton Number Violating Processes), NF03 (Beyond the Standard Model) and NF05 (Neutrino Properties) within the Theory Frontier, Rare Processes and Precision Frontier, and Neutrino Physics Frontier of the U.S. Community Study on the Future of Particle Physics (Snowmass 2021).

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Leptonic anomalous magnetic moments in ν SMEFT

Cited by 23 publications

References 142 publications

The Present and Future Status of Heavy Neutral Leptons

The Present and Future Status of Heavy Neutral Leptons

EFT description of the muon magnetic dipole moment

Neutrinoless Double-Beta Decay: A Roadmap for Matching Theory to Experiment

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