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pro vyhledávání: '"Berbig, Maximilian"'
Autor:
Berbig, Maximilian
The main limitation for pre-inflationary breaking of Peccei-Quinn (PQ) symmetry is the upper bound on the Hubble rate during inflation from axion isocurvature fluctuations. This leads to a tension between high scale inflation and QCD axions with Gran
Externí odkaz:
http://arxiv.org/abs/2404.06441
Publikováno v:
Phys. Rev. D 110, 035011 (2024)
A dynamical mechanism, based on a confining non-abelian dark symmetry, which generates Majorana masses for hypercharge-less fermions, is proposed. We apply it to the inverse seesaw scenario, which allows to generate light neutrino masses from the int
Externí odkaz:
http://arxiv.org/abs/2403.17488
Autor:
Berbig, Maximilian
Publikováno v:
JHEP01(2024)061
The family of Dirac Seesaw models offers an intriguing alternative explanation for the smallness of neutrino masses without necessarily requiring microscopic lepton number violation, when compared to the more familiar class of Majorana Seesaws. A glo
Externí odkaz:
http://arxiv.org/abs/2307.14121
Autor:
Berbig, Maximilian, Ghoshal, Anish
Publikováno v:
JHEP 05 (2023) 172
We discuss the damping of inflationary gravitational waves (GW) that re-enter the horizon before or during an epoch, where the energy budget of the universe is dominated by an unstable right handed neutrino (RHN), whose out of equilibrium decay relea
Externí odkaz:
http://arxiv.org/abs/2301.05672
Autor:
Berbig, Maximilian
Publikováno v:
Phys. Rev. D 106, 115018 (2022)
We present a version of the Type II Seesaw mechanism for parametrically small Dirac neutrino masses. Our model starts from an $\text{SU}(2)_\text{L} \otimes \text{SU}(2)'\otimes \text{U}(1)_\text{X}$ gauge extension of the Standard Model involving a
Externí odkaz:
http://arxiv.org/abs/2209.14246
Autor:
Berbig, Maximilian
Publikováno v:
JCAP11(2022)042
Inspired by the S.M.A.S.H. framework we construct a model that addresses the strong CP problem, axion dark matter, inflation and Dirac neutrino masses as well as leptogenesis. The model possesses only two dynamical scales, namely the SM breaking scal
Externí odkaz:
http://arxiv.org/abs/2207.08142
Autor:
Berbig, Maximilian
Publikováno v:
J. High Energ. Phys. 2022, 101 (2022)
We extend the Dirac Scotogenic model with the aim of realizing neutrino masses together with the mass of a keV-scale dark matter (DM) candidate via the same one-loop topology. Two of the Standard Model (SM) neutrinos become massive Dirac fermions whi
Externí odkaz:
http://arxiv.org/abs/2203.04276
Publikováno v:
Phys. Rev. D 102, 115008 (2020)
We present a simple extension of the Standard Model that leads to renormalizable long-range vector-mediated neutrino self-interactions. This model can resolve the Hubble tension by delaying the onset of neutrino free-streaming during recombination, w
Externí odkaz:
http://arxiv.org/abs/2004.13039
Akademický článek
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Autor:
Berbig, Maximilian
Publikováno v:
Journal of High Energy Physics; Sep2022, Vol. 2022 Issue 9, p1-47, 47p