Proton decay and light sterile neutrinos

Helo, Juan Carlos; Hirsch, Martin; Ota, Toshihiko

doi:10.1007/jhep06(2018)047

Cited by 18 publications

(6 citation statements)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, in the proton decay processes, if the sterile neutrinos exist, it would induce new types of exotic decay processes as discussed in ref. [31]. We expect the higher dimension of operators, the lower of the cutoff scale in the proton exotic decay processes.…”

Section: Introductionmentioning

confidence: 88%

Operator bases in effective field theories with sterile neutrinos: d ≤ 9

Ren

Xiao

et al. 2021

J. High Energ. Phys.

View full text Add to dashboard Cite

We obtain the complete and independent bases of effective operators at mass dimension 5, 6, 7, 8, 9 in both standard model effective field theory with light sterile right-handed neutrinos (νSMEFT) and low energy effective field theory with light sterile neutrinos (νLEFT). These theories provide systematical parametrizations on all possible Lorentz-invariant physical effects involving in the Majorana/Dirac neutrinos, with/without the lepton number violations. In the νSMEFT, we find that there are 2 (18), 29 (1614), 80 (4206), 323 (20400), 1358 (243944) independent operators with sterile neutrinos included at the dimension 5, 6, 7, 8, 9 for one (three) generation of fermions, while 24, 5223, 3966, 25425, 789426 independent operators in the νLEFT for two generations of up-type quarks and three generations of all other fermions.

show abstract

Section: Introductionmentioning

confidence: 88%

Operator bases in effective field theories with sterile neutrinos: d ≤ 9

Ren

Xiao

et al. 2021

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…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

View full text Add to dashboard Cite

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].

show abstract

“…This coupling induces a mixing of χ with neutral baryons such as the neutron and has been discussed in Refs. [4][5][6][7][8][9][10][11][12][13][14][15][16][17], motivated in part by the neutron lifetime anomaly [18].…”

Section: Introductionmentioning

confidence: 99%

Light particles with baryon and lepton numbers

Heeck

2021

Physics Letters B

View full text Add to dashboard Cite

Proton decay and light sterile neutrinos

Cited by 18 publications

References 74 publications

Operator bases in effective field theories with sterile neutrinos: d ≤ 9

Operator bases in effective field theories with sterile neutrinos: d ≤ 9

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

Light particles with baryon and lepton numbers

Contact Info

Product

Resources

About