Majorana neutrino decay in an effective approach

Duarte, Lucía; Peressutti, Javier; Sampayo, O. A.

doi:10.1103/physrevd.92.093002

Cited by 40 publications

(69 citation statements)

References 67 publications

(84 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further observable features of various models with right-handed neutrinos were studied, e.g., in refs. [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30].…”

Section: Present Constraintsmentioning

confidence: 99%

Sterile neutrino searches at future e−e+, pp and e−p colliders

Antusch

Cazzato

Fischer

2017

Int. J. Mod. Phys. A

207

251

View full text Add to dashboard Cite

Sterile neutrinos are among the most attractive extensions of the SM to generate the light neutrino masses observed in neutrino oscillation experiments. When the sterile neutrinos are subject to a protective symmetry, they can have masses around the electroweak scale and potentially large neutrino Yukawa couplings, which makes them testable at planned future particle colliders. We systematically discuss the production and decay channels at electron-positron, proton-proton and electron-proton colliders and provide a complete list of the leading order signatures for sterile neutrino searches. Among other things, we discuss several novel search channels, and present a first look at the possible sensitivities for the active-sterile mixings and the heavy neutrino masses. We compare the performance of the different collider types and discuss their complementarity.

show abstract

“…Further observable features of various models with right-handed neutrinos were studied, e.g., in refs. [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30].…”

Section: Present Constraintsmentioning

confidence: 99%

Sterile neutrino searches at future e−e+, pp and e−p colliders

Antusch

Cazzato

Fischer

2017

Int. J. Mod. Phys. A

207

251

View full text Add to dashboard Cite

show abstract

“…The one-loop generated operators are suppressed by the 1/(16π 2 ) factor but, as we show in [31], these play a major role in the N -decay. In particular for the low m N range studied here, the dominant channel N → νγ is produced by terms coming from the operators in (4)…”

Section: Effective Operators and Lagrangianmentioning

confidence: 92%

“…For the low Majorana neutrino mass region, the dominant decay was found to be N → γ ν [31]. For completeness we include in Fig.…”

Section: Effective Operators and Lagrangianmentioning

confidence: 99%

“…1 Branching ratios for the Majorana neutrino decay channels in the low mass region. The expressions for the partial widths are presented in [31]. The labels represent the decays …”

Section: Experimental Bounds On the Effective Couplingsmentioning

confidence: 99%

“…The effects of dark matter and new physics on ν τ propagation has been studied by our group in Refs. [28][29][30], and the Majorana neutrino effective phenomenology regarding the relevant N decay modes and interactions is treated in [31,32].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Majorana physics on the UHE $$\nu _{\tau }$$ ν τ flux traversing the Earth

et al. 2017

Self Cite

View full text Add to dashboard Cite

We study the effects produced by sterile Majorana neutrinos on the ν τ flux traversing the Earth, considering the interaction between the Majorana neutrinos and the standard matter as modeled by an effective theory. The surviving tau-neutrino flux is calculated using transport equations including Majorana neutrino production and decay. We compare our results with the pure Standard Model interactions, computing the surviving flux for different values of the effective lagrangian couplings, considering the detected flux by IceCube for an operation time of 10 years, and Majorana neutrinos with mass m N ∼ m τ .

show abstract

The geometric νSMEFT: operators and connections

Talbert

2023

J. High Energ. Phys.

View full text Add to dashboard Cite

We write down a geometric realization of the Standard Model Effective Field Theory (SMEFT) extended by nf flavours of light sterile neutrinos, a so-called geoνSMEFT. As with the geoSMEFT introduced by Helset, Martin and Trott, we show that a refactorization of the νSMEFT’s operator product expansion is possible, such that two- and three-point composite operator forms are dressed with field-space connections composed of towers of Higgs dressings and symmetry generators, valid at all-orders in the $$ {\overline{v}}_T/\Lambda $$ v ¯ T / Λ expansion parameter of the EFT $$ \left({\overline{v}}_T\equiv \sqrt{2\left\langle {H}^{\dagger }H\right\rangle}\right) $$ v ¯ T ≡ 2 H † H . These connections are parameterized by real Higgs coordinates and contribute to the field-space geometry of the (ν)SMEFT, with structure linked to the strength of Beyond-the-(ν)Standard Model physics encoded in $$ {\overline{v}}_T/\Lambda $$ v ¯ T / Λ . In addition to enumerating the relevant composite operators and associated connections, we briefly outline the route to calculating all-$$ {\overline{v}}_T/\Lambda $$ v ¯ T / Λ -orders amplitudes, including the flavor-invariant theory required to understand the neutrino mass-eigenstate basis geometrically.

show abstract

Majorana neutrino decay in an effective approach

Cited by 40 publications

References 67 publications

Sterile neutrino searches at future e−e+, pp and e−p colliders

Sterile neutrino searches at future e−e+, pp and e−p colliders

Effects of Majorana physics on the UHE $$\nu _{\tau }$$ ν τ flux traversing the Earth

The geometric νSMEFT: operators and connections

Contact Info

Product

Resources

About