Constraining minimal<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>U</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>1</mml:mn><mml:msub><mml:mo stretchy="false">)</mml:mo><mml:mrow><mml:mi>B</mml:mi><mml:mo>−</mml:mo><mml:mi>L</mml:mi></mml:mrow></mml:msub></mml:math>model from dark matter observations

Basak, Tanushree; Mondal, Tanmoy

doi:10.1103/physrevd.89.063527

Cited by 76 publications

(50 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For other studies of gauged B −L with a dark matter candidate see Refs. [7][8][9][10][11][12][13][14][15][16][17], and for scenarios that explore a connection between the origin of neutrino masses and the dark matter candidate see Refs. [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Neutrino-dark matter connections in gauge theories

2019

View full text Add to dashboard Cite

We discuss the connection between the origin of neutrino masses and the properties of dark matter candidates in the context of gauge extensions of the Standard Model. We investigate minimal gauge theories for neutrino masses where the neutrinos are predicted to be Dirac or Majorana fermions. We find that the upper bound on the effective number of relativistic species provides a strong constraint in the scenarios with Dirac neutrinos. In the context of theories where the lepton number is a local gauge symmetry spontaneously broken at the low scale, the existence of dark matter is predicted from the condition of anomaly cancellation. Applying the cosmological bound on the dark matter relic density, we find an upper bound on the symmetry breaking scale in the multi-TeV region. These results imply we could hope to test simple gauge theories for neutrino masses at current or future experiments. *

show abstract

Section: Introductionmentioning

confidence: 99%

Neutrino-dark matter connections in gauge theories

2019

View full text Add to dashboard Cite

show abstract

“…(34) and m − DM in Eq. (33). The projected sensitivity of the SuperCDMS SNOLAB [44] can cover the predicted regions of sin α > Oð10 −5 Þ.…”

Section: Dark Mattermentioning

confidence: 88%

“…Then, we predict the spin-independent cross section consistent with the dark matter abundance. Various radiative seesaw mechanism with Z 2 parity and gauged Uð1Þ B−L symmetries have been proposed [24][25][26][27][28][29][30][31][32][33][34][35][36]. Our following discussion and results would be applicable once one tries to address the Atomki anomalies in such a model, because the required cross section and the mass determine the scale of the Uð1Þ B−L symmetry.…”

Section: Introductionmentioning

confidence: 91%

Atomki anomaly and dark matter in a radiative seesaw model with gauged B−L symmetry

Seto

Shimomura

2017

Phys. Rev. D

View full text Add to dashboard Cite

Motivated by recently reported anomalies in a decay of an excited state of beryllium by the Atomki Collaboration, we study a radiative seesaw model with gauged B − L symmetry and a Z 2 parity. Assuming that the anomalies originate from the decay of the B − L gauge boson followed by the nuclear decay, the mass of the lightest right-handed neutrino or the dark matter candidate can be determined below 10 GeV. We show that for this mass range, the model can explain the anomalies in the beryllium decay and the relic dark matter abundance consistent with neutrino masses. We also predict its spin-independent cross section in direct detection experiments for this mass range.

show abstract

“…Several attempts have also been made to incorporate the dark matter within these scenarios [16][17][18][19][20][21][22][23][24][25][26][27]. It has been known for some time, though, that the anomalies in this model can also be canceled in other ways.…”

Section: Introductionmentioning

confidence: 99%

A new B − L model without right-handed neutrinos

Patra¹,

Rodejohann²,

Yaguna³

2016

J. High Energ. Phys.

View full text Add to dashboard Cite

We propose and study a novel extension of the Standard Model based on the B − L gauge symmetry that can account for dark matter and neutrino masses. In this model, right-handed neutrinos are absent and the gauge anomalies are canceled instead by four chiral fermions with fractional B − L charges. After the breaking of U(1) B−L , these fermions arrange themselves into two Dirac particles, the lightest of which is automatically stable and plays the role of the dark matter. We determine the regions of the parameter space consistent with the observed dark matter density and show that they can be partially probed via direct and indirect dark matter detection or collider searches at the LHC. Neutrino masses, on the other hand, can be explained by a variant of the type-II seesaw mechanism involving one of the two scalar fields responsible for the dark matter mass.

show abstract

Constraining minimalU(1)B−Lmodel from dark matter observations

Cited by 76 publications

References 39 publications

Neutrino-dark matter connections in gauge theories

Neutrino-dark matter connections in gauge theories

Atomki anomaly and dark matter in a radiative seesaw model with gauged B−L symmetry

A new B − L model without right-handed neutrinos

Contact Info

Product

Resources

About