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13 papers · 1 filter
Analytical results for O(α_s) radiative corrections to e+ e- -> tbar t(pol.) up to a given gluon energy cut
S. Groote, J. G. Körner
We determine the O(α_s) radiative corrections to polarized top quark pair production in e+ e- -annihilations with a specified gluon energy cut. We write down fully analytical resul…
Scalar-tensor cosmologies: general relativity as a fixed point of the Jordan frame scalar field
Piret Kuusk, Laur Jarv, Margus Saal
We study the evolution of homogeneous and isotropic, flat cosmological models within the general scalar-tensor theory of gravity with arbitrary coupling function and potential and…
Conservation laws and angular transverse shifts of the reflected and transmitted light beams
V. G. Fedoseyev
The relation between the angular transverse shifts of the beams reflected and transmitted at a plane interface of two isotropic transparent media is established. The derivation of…
Defect-related photoluminescence of hexagonal boron nitride
Luc Museur, Feldbach Eduard, A. V. Kanaev
Photoluminescence of polycrystalline hexagonal boron nitride (hBN) was measured by means of time- and energy-resolved spectroscopy methods. The observed bands are related to DAP tr…
Influence of geography on language competition
Marco Patriarca, Els Heinsalu
Competition between languages or cultural traits diffusing in the same geographical area is studied combining the language competition model of Abrams and Strogatz and a human disp…
Heavy baryon properties with NLO accuracy in perturbative QCD
S. Groote, J. G. Körner, A. A. Pivovarov
We present an analysis of the static properties of heavy baryons at next-to-leading order in the perurbative expansion of QCD. We obtain analytical next-to-leading order three-loop…