Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Helmboldt, Alexander J."'
Publikováno v:
JHEP12(2019)158
Classically scale-invariant models are attractive not only because they may offer a solution to the long-standing gauge hierarchy problem, but also due to their role in facilitating strongly supercooled cosmic phase transitions. In this paper, we inv
Externí odkaz:
http://arxiv.org/abs/1910.13460
Publikováno v:
JCAP12(2019)027
Left-right symmetry at high energy scales is a well-motivated extension of the Standard Model. In this paper we consider a typical minimal scenario in which it gets spontaneously broken by scalar triplets. Such a realization has been scrutinized over
Externí odkaz:
http://arxiv.org/abs/1909.02018
Publikováno v:
Phys. Rev. D 100, 075029 (2019)
The type-I seesaw represents one of the most popular extensions of the Standard Model. Previous studies of this model have mostly focused on its ability to explain neutrino oscillations as well as on the generation of the baryon asymmetry via leptoge
Externí odkaz:
http://arxiv.org/abs/1905.12634
Publikováno v:
Phys. Rev. D 100, 055025 (2019)
We study the gravitational wave (GW) signature of first-order chiral phase transitions ($\chi$PT) in strongly interacting hidden or dark sectors. We do so using several effective models in order to reliably capture the relevant non-perturbative dynam
Externí odkaz:
http://arxiv.org/abs/1904.07891
Gravitational Waves from First-Order Phase Transitions: LIGO as a Window to Unexplored Seesaw Scales
Publikováno v:
JCAP02(2019)021
Within a recently proposed classically conformal model, in which the generation of neutrino masses is linked to spontaneous scale symmetry breaking, we investigate the associated phase transition and find it to be of strong first order with a substan
Externí odkaz:
http://arxiv.org/abs/1810.12306
Publikováno v:
Phys. Rev. D 99, 055014 (2019)
It was recently proposed that the electroweak hierarchy problem is absent if the generation of the Higgs potential stems exclusively from quantum effects of heavy right-handed neutrinos which can also generate active neutrino masses via the type-I se
Externí odkaz:
http://arxiv.org/abs/1807.11490
Flavour-violating Higgs interactions are suppressed in the Standard Model such that their observation would be a clear sign of new physics. We investigate the prospects for detecting quark flavour-violating Higgs decays in the clean ILC environment.
Externí odkaz:
http://arxiv.org/abs/1710.06657
Publikováno v:
Phys. Rev. D 95, 055008 (2017)
Within models containing a very light scalar particle coupled to the 125 GeV Higgs boson, we present the first detailed study of Higgs decays into three of these light scalars. We determine model-independent conditions which the scalar sector after e
Externí odkaz:
http://arxiv.org/abs/1609.08127
Publikováno v:
JHEP 1707 (2017) 113
In this work we find the minimal extension of the Standard Model's Higgs sector which can lead to a light Higgs boson via radiative symmetry breaking and is consistent with the phenomenological requirements for a low-energy realization of a conformal
Externí odkaz:
http://arxiv.org/abs/1603.03603
Publikováno v:
Phys. Rev. D 91, 054010 (2015)
We investigate the relation between the physical pion pole and screening masses and the mesonic fluctuation scale in low-energy QCD, which relates to the curvature of the mesonic effective potential. This relation is important for the correct relativ
Externí odkaz:
http://arxiv.org/abs/1409.8414