scholarly journals Multilepton and lepton jet probes of sub-weak-scale right-handed neutrinos

2015 ◽  
Vol 91 (9) ◽  
Author(s):  
Eder Izaguirre ◽  
Brian Shuve
Keyword(s):  
Author(s):  
Howard Baer ◽  
Xerxes Tata
Keyword(s):  

1992 ◽  
Vol 69 (13) ◽  
pp. 1871-1873 ◽  
Author(s):  
Aram Antaramian ◽  
Lawrence J. Hall ◽  
Andrija Rašin
Keyword(s):  

2020 ◽  
Vol 2020 (3) ◽  
Author(s):  
Junichi Haruna ◽  
Hikaru Kawai

Abstract In the standard model, the weak scale is the only parameter with mass dimensions. This means that the standard model itself cannot explain the origin of the weak scale. On the other hand, from the results of recent accelerator experiments, except for some small corrections, the standard model has increased the possibility of being an effective theory up to the Planck scale. From these facts, it is naturally inferred that the weak scale is determined by some dynamics from the Planck scale. In order to answer this question, we rely on the multiple point criticality principle as a clue and consider the classically conformal $\mathbb{Z}_2\times \mathbb{Z}_2$ invariant two-scalar model as a minimal model in which the weak scale is generated dynamically from the Planck scale. This model contains only two real scalar fields and does not contain any fermions or gauge fields. In this model, due to a Coleman–Weinberg-like mechanism, the one-scalar field spontaneously breaks the $ \mathbb{Z}_2$ symmetry with a vacuum expectation value connected with the cutoff momentum. We investigate this using the one-loop effective potential, renormalization group and large-$N$ limit. We also investigate whether it is possible to reproduce the mass term and vacuum expectation value of the Higgs field by coupling this model with the standard model in the Higgs portal framework. In this case, the one-scalar field that does not break $\mathbb{Z}_2$ can be a candidate for dark matter and have a mass of about several TeV in appropriate parameters. On the other hand, the other scalar field breaks $\mathbb{Z}_2$ and has a mass of several tens of GeV. These results will be verifiable in near-future experiments.


1996 ◽  
Vol 53 (5) ◽  
pp. 2403-2410 ◽  
Author(s):  
Greg W. Anderson ◽  
Diego J. Castaño
Keyword(s):  

2011 ◽  
Vol 26 (21) ◽  
pp. 1571-1576 ◽  
Author(s):  
XAVIER CALMET

We emphasize that the electroweak interactions without a Higgs boson are very similar to quantum general relativity. The Higgs field could just be a dressing field and might not exist as a propagating particle. In that interpretation, the electroweak interactions without a Higgs boson could be renormalizable at the nonperturbative level because of a nontrivial fixed point. Tree-level unitarity in electroweak bosons scattering is restored by the running of the weak scale.


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