We study the decay of SM Higgs boson to a massive charm quark pair at next-to-next-to-leading order QCD and next-to-leading electroweak. At second coupling, we consider exact calculation flavour-singlet contributions where couples internal top bottom quark. Helpful information on running mass effects related Yukawa coupling may be obtained by analyzing this process. High precision production fo...

We construct globally regular gravitating solutions, which possess only discrete symmetries. These solutions of Yang-Mills-dilaton theory may be viewed as exact (numerical) solutions of scalar gravity, by considering the dilaton as a kind of scalar graviton, or as approximate solutions of Einstein-Yang-Mills theory. We focus on platonic solutions with cubic symmetry, related to a rational map o...

Introduction: Antarctic micrometeorites (AMMs) are interplanetary dust particles collected in the Antarctic ice cap, and belonging to the size range 25–400 μm [1]. They might represent the bulk of extraterrestrial matter accreting on Earth today [2]. They bear strong resemblances with low petrographic type, hydrous carbonaceous chondrites [1]. Compared to IDPs they lack chondritic porous partic...

The solution of topologically massive gravity with cosmological constant is reduced, for space-times with two commuting Killing vectors, to a special-relativistic dynamical problem. This approach is applied to the construction of a class of exact sourceless, horizonless solutions asymptotic to the BTZ extreme black holes. ∗E-mail: [email protected].