686 research outputs found
Electroweak Baryon Number Non-Conservation in the Early Universe and in High Energy Collisions
We review recent progress in the study of the anomalous baryon number
non-conservation at high temperatures and in high energy collisions. Recent
results on high temperature phase transitions are described, and applications
to electroweak baryogenesis are considered. The current status of the problem
of electroweak instanton-like processes at high energies is outlined. This
paper is written on the occasion of Sakharov's 75th anniversary and will appear
in the memorial volume of Uspekhi (Usp. Fiz. Nauk, volume 166, No 5, May 1996).Comment: Minor modifications. A number of new references added. Final version
to appear in Uspekhi (Usp. Fiz. Nauk 166 (May, 1996) No 5). 100 pages and 16
eps figure
The Electroweak Phase Transition in Ultra Minimal Technicolor
We unveil the temperature-dependent electroweak phase transition in new
extensions of the Standard Model in which the electroweak symmetry is
spontaneously broken via strongly coupled, nearly-conformal dynamics achieved
by the means of multiple matter representations. In particular, we focus on the
low energy effective theory introduced to describe Ultra Minimal Walking
Technicolor at the phase transition. Using the one-loop effective potential
with ring improvement, we identify regions of parameter space which yield a
strong first order transition. A striking feature of the model is the existence
of a second phase transition associated to the electroweak-singlet sector. The
interplay between these two transitions leads to an extremely rich phase
diagram.Comment: 38 RevTeX pages, 9 figure
The Experience of Reinforcement of Existing Buildings During Construction in Conditions of Compact Urban Planning
Two-level underground part of 12-storeyed dwelling building was constructed in the historical center of Moscow in 2000. The strengthening of foundations was carried out by pressing in of tubular and concrete piles or by placing of bore and injection piles, depending on the results of mathematical modeling. Geotechnical monitoring of the adjacent buildings was carried out in the process of strengthening and new construction. The results of monitoring confirmed the correct way of the chosen solutions: the settlements did not exceed the ultimate permissible values
Brane-worlds and theta-vacua
Reductions from odd to even dimensionalities ( or ), for
which the effective low-energy theory contains chiral fermions, present us with
a mismatch between ultraviolet and infrared anomalies. This applies to both
local (gauge) and global currents; here we consider the latter case. We show
that the mismatch can be explained by taking into account a change in the
spectral asymmetry of the massive modes--an odd-dimensional analog of the
phenomenon described by the Atiyah-Patodi-Singer theorem in even
dimensionalities. The result has phenomenological implications: we present a
scenario in which a QCD-like -angle relaxes to zero on a certain
(possibly, cosmological) timescale, despite the absence of any light axion-like
particle.Comment: 44 pages, 4 figure
Can an odd number of fermions be created due to chiral anomaly?
We describe a possibility of creation of an odd number of fractionally
charged fermions in 1+1 dimensional Abelian Higgs model. We point out that for
1+1 dimensions this process does not violate any symmetries of the theory, nor
makes it mathematically inconsistent. We construct the proper definition of the
fermionic determinant in this model and underline its non-trivial features that
are of importance for realistic 3+1 dimensional models with fermion number
violation.Comment: 12 pages revtex, 2 figure
Evaluation of the effect of non-current fixed assets on profitability and asset management efficiency
The purpose of this article is to investigate the problem, which stems from non-current fixed assets affecting profitability and asset management efficiency. Tangible assets, intangible assets and financial assets are all included in non-current fixed assets. The aim of the research is to identify the impact of estimates and valuation in accounting for non-current fixed assets through several objectives, for example, explanation of the impairment tests of tangible and intangible assets under IFRS. This study relied on combining the deductive approach with the quantitative analysis approach, where the deductive approach was used to root the subject through books, periodicals and scientific communications and electronic articles published online. The results of the research: The differences in the measurement of accounting figures under IFRS and EAS may directly affect the numerator of ratio calculations, their denominator, or both. In cases where the difference in measurement affects only the numerator or only the denominator, the effect of the changes is straightforward, easy to identify and to interpret. Identification and interpretation are less obvious in cases of numerous diverging effects on ratios. The results provided by this article have a practical value for designers and users of financial statements. © 2016 Lubyanaya et al
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