scholarly journals Funnel annihilations of light dark matter and the invisible decay of the Higgs boson

2020 ◽  
Vol 101 (9) ◽  
Author(s):  
Kun Wang ◽  
Jingya Zhu
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Invisible Decay ◽  
The Invisible

scholarly journals Dynamical torsion as the microscopic origin of the neutrino seesaw

2014 ◽  
Vol 29 (21) ◽  
pp. 1450111 ◽  
Author(s):  
M. A. Zubkov
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Quantum Gravity ◽  
Coupling Constants ◽  
Light Neutrino ◽  
Neutrino Masses ◽  
Minimal Coupling ◽  
The Right ◽  
Invisible Decay ◽  
Microscopic Origin

It is assumed, that there are two scales in quantum gravity. Metric fluctuates at the scales of the order of the Planck mass. The second scale MT is related to the fluctuations of torsion. We suppose, that it may be as low as MT~1 TeV . Due to the non-minimal coupling to torsion, the attractive interaction between the fermions appear. The non-minimal coupling admits the appearance of different coupling constants for different fermions. This opens the possibility that the interaction with torsion gives the Majorana masses for the right-handed neutrinos (that are assumed to be of the order of MT). We suppose, that the Dirac masses for the neutrino are all close to the mass of electron. This gives the light neutrino masses ≤0.25 eV. In addition, the model predicts the appearance of Majorons that may contribute to the dark matter as well as to the invisible decay of the 125 GeV Higgs boson.

scholarly journals Effective field theory analysis of dark matter-standard model interactions with spin one mediators

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Fabiola Fortuna ◽  
Pablo Roig ◽  
José Wudka
Keyword(s):  
Field Theory ◽  
Dark Matter ◽  
Standard Model ◽  
Effective Field Theory ◽  
Gamma Ray ◽  
Direct Detection ◽  
Effective Field ◽  
Indirect Detection ◽  
Theory Analysis ◽  
Invisible Decay

Abstract We analyze interactions between dark matter and standard model particles with spin one mediators in an effective field theory framework. In this paper, we are considering dark particles masses in the range from a few MeV to the mass of the Z boson. We use bounds from different experiments: Z invisible decay width, relic density, direct detection experiments, and indirect detection limits from the search of gamma-ray emissions and positron fluxes. We obtain solutions corresponding to operators with antisymmetric tensor mediators that fulfill all those requirements within our approach.

scholarly journals Connection of gamma rays, dark matter, and Higgs boson searches at the LHC

2012 ◽  
Vol 86 (7) ◽  
Author(s):  
J. D. Ruiz-Alvarez ◽  
C. A. de S. Pires ◽  
Farinaldo S. Queiroz ◽  
D. Restrepo ◽  
P. S. Rodrigues da Silva
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Gamma Rays

scholarly journals Gravitino dark matter with constraints from Higgs boson mass and sneutrino decays

2013 ◽  
Vol 2013 (3) ◽  
Author(s):  
Leszek Roszkowski ◽  
Sebastian Trojanowski ◽  
Krzysztof Turzyński ◽  
Karsten Jedamzik
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Boson Mass ◽  
Higgs Boson Mass

scholarly journals Constraining extended scalar sectors at the LHC and beyond

2018 ◽  
Vol 33 (10n11) ◽  
pp. 1830007 ◽  
Author(s):  
Agnieszka Ilnicka ◽  
Tania Robens ◽  
Tim Stefaniak
Keyword(s):  
Dark Matter ◽  
Higgs Boson ◽  
Standard Model ◽  
Parameter Space ◽  
Beyond The Standard Model ◽  
The Standard Model ◽  
Doublet Model ◽  
Inert Doublet Model ◽  
Scalar Sector ◽  
Scalar Singlet

We give a brief overview of beyond the Standard Model (BSM) theories with an extended scalar sector and their phenomenological status in the light of recent experimental results. We discuss the relevant theoretical and experimental constraints, and show their impact on the allowed parameter space of two specific models: the real scalar singlet extension of the Standard Model (SM) and the Inert Doublet Model. We emphasize the importance of the LHC measurements, both the direct searches for additional scalar bosons, as well as the precise measurements of properties of the Higgs boson of mass 125 GeV. We show the complementarity of these measurements to electroweak and dark matter observables.

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