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550 papers · 1 filter
Quantum simulating multi-particle processes in high energy nuclear physics: dijet production and color (de)coherence
João Barata, Meijian Li, Wenyang Qian +2
Hard scattering events in high-energy collisions produce highly virtual partons that subsequently fragment into collimated hadronic cascades. When such partonic showers evolve in a…
Probing Unification Scenarios with Big Bang Nucleosynthesis
I. M. Dreyer, C. J. A. P. Martins
We extend a recently developed Big Bang Nucleosynthesis (BBN) code, {\tt PRyMordial}, to constrain a broad class of Grand Unified Theories to which BBN is sensitive, since these le…
Assessing boundedness from below in the -symmetric three-Higgs-doublet model: algorithm and machine learning
Darius Jurčiukonis, Luís Lavoura, André Milagre
The scalar potential of any particle-physics model must be bounded from below (BFB). We consider the extension of the Standard electroweak Model with three doublets of scal…
CP violation in H^\pm \to W^\pm Z: A physical approach for the 2HDM
Wafaa Khater, Odd Magne Ogreid, Per Osland +1
We investigate CP violation in the process H^\pm \to W^\pm Z within the framework of the two-Higgs-Doublet model (2HDM). Amplitudes are expressed transparently in terms of physical…
Neutrino-Induced Polarization Rotation in Active Galactic Nuclei Plasmas
H. B. Câmara, A. Smetana, A. A. Tursunov
We study parity-violating birefringence induced by an asymmetric neutrino background in plasmas associated with active galactic nuclei (AGN). We derive a directionality factor aris…
Residual Symmetries and Scalar Multiplet Vacuum Alignment in Non-Abelian Flavour Models
Ivo de Medeiros Varzielas, Ming-Shau Liu, Amartya Sengupta +1
We demonstrate that, upon minimizing a renormalizable, single-scalar potential invariant under a non-Abelian symmetry, special orientations in the associated vacuum alignment of th…