Physics Reach of High-Energy and High-Statistics IceCube Atmospheric Neutrino Data

This paper investigates the physics reach of the IceCube neutrino detector when it will have collected a data set of order one million atmospheric neutrinos with energies in the 0.1 \sim 10^4 TeV range. The paper consists of three parts. We first demonstrate how to simulate the detector performance using relatively simple analytic methods. Because of the high energies of the neutrinos, their oscillations, propagation in the Earth and regeneration due to \tau decay must be treated in a coherent way. We set up the formalism to do this and discuss the implications. In a final section we apply the methods developed to evaluate the potential of IceCube to study new physics beyond neutrino oscillations. Not surprisingly, because of the increased energy and statistics over present experiments, existing bounds on violations of the equivalence principle and of Lorentz invariance can be improved by over two orders of magnitude. The methods developed can be readily applied to other non-conventional physics associated with neutrinos.Comment: 21 pages, 7 figures, Revtex

Radiography of the Earth's Core and Mantle with Atmospheric Neutrinos

A measurement of the absorption of neutrinos with energies in excess of 10 TeV when traversing the Earth is capable of revealing its density distribution. Unfortunately, the existence of beams with sufficient luminosity for the task has been ruled out by the AMANDA South Pole neutrino telescope. In this letter we point out that, with the advent of second-generation kilometer-scale neutrino detectors, the idea of studying the internal structure of the Earth may be revived using atmospheric neutrinos instead.Comment: 4 pages, LaTeX file using RevTEX4, 2 figures and 1 table included. Matches published versio

DEVELOPMENT OF PASTERIZATION MODES FOR HIGH-SUGAR CANS IN CONTINUOUS ACTING PASTEURIZERS

High-sugar canned fruits, such as jam, marmalade, confiture, are characterized by a high content of soluble dry solids and high acidity, which allows to apply to them pasteurization processes as heat treatment. In comparison with sterilization processes, heat treatment of hermetically sealed canned food during pasteurization is implemented at temperatures less than 100°C.The article presents the results of the development of scientifically-based pasteurization modes for high-sugar canned food for industrial continuous-acting pasteurizers (CAP — continuous-acting pasteurizers) of open type with a temperature in the heating area less than 100°C. For today, such pasteurizers are widely spread due to the simplicity of their design, high productivity, with the option to reduce consumption of water, steam, electricity and to use it for the various types of packaging. So, the actual task of this article is the establishment of canned fruit pasteurization modes for such pasteurizers.The development of pasteurization modes for high-sugar canned food using strawberry jam as a sample was carried out in the experimental equipment simulating the operation of a continuous-acting pasteurizer. The studies were implemented to confirm that the developed modes of heat treatment in the CAP as a matter of fact provide industrial sterility of the produced high-sugar canned food. Optimal pasteurization modes have the following parameters: heat treatment in an autoclave sterilizer at a heating temperature of the heating medium 97°C and stage-by-stage cooling of the products with water at temperatures 70°C, 50°C and 30°C.High-sugar canned fruits, such as jam, marmalade, confiture, are characterized by a high content of soluble dry solids and high acidity, which allows to apply to them pasteurization processes as heat treatment. In comparison with sterilization processes, heat treatment of hermetically sealed canned food during pasteurization is implemented at temperatures less than 100°C.The article presents the results of the development of scientifically-based pasteurization modes for high-sugar canned food for industrial continuous-acting pasteurizers (CAP — continuous-acting pasteurizers) of open type with a temperature in the heating area less than 100°C. For today, such pasteurizers are widely spread due to the simplicity of their design, high productivity, with the option to reduce consumption of water, steam, electricity and to use it for the various types of packaging. So, the actual task of this article is the establishment of canned fruit pasteurization modes for such pasteurizers.The development of pasteurization modes for high-sugar canned food using strawberry jam as a sample was carried out in the experimental equipment simulating the operation of a continuous-acting pasteurizer. The studies were implemented to confirm that the developed modes of heat treatment in the CAP as a matter of fact provide industrial sterility of the produced high-sugar canned food. Optimal pasteurization modes have the following parameters: heat treatment in an autoclave sterilizer at a heating temperature of the heating medium 97°C and stage-by-stage cooling of the products with water at temperatures 70°C, 50°C and 30°C

On the transport equations of cosmic neutrinos passing through Earth and secondary nu_mu fluxes

The convergence of the iterative solutions of the transport equations of cosmic muon and tau neutrinos propagating through Earth is studied and analyzed. For achieving a fast convergence of the iterative solutions of the coupled transport equations of nu_tau, nubar_tau and the associated tau^{\pm} fluxes, a new semi-analytic input algorithm is presented where the peculiar tau-decay contributions are implemented already in the initial zeroth order input. Furthermore, the common single transport equation for muon neutrinos is generalized by taking into account the contributions of secondary nu_mu and nubar_mu fluxes due to the prompt tau-decay tau -> nu_mu initiated by the associated tau flux. Differential and total nadir angle integrated upward-going mu^- + mu^+ event rates are presented for underground neutrino telescopes and compared with the muon rates initiated by the primary nu_mu, nu_tau and tau fluxes.Comment: Version to appear in PR

Search of low-dimensional magnetics on the basis of structural data: spin-1/2 antiferromagnetic zigzag chain compounds In2VO5, beta-Sr(VOAsO4)2,(NH4,K)2VOF4 and alpha-ZnV3O8

A new technique for searching low-dimensional compounds on the basis of structural data is presented. The sign and strength of all magnetic couplings at distances up to 12 A in five predicted new antiferromagnetic zigzag spin-1/2 chain compounds In2VO5, beta-Sr(VOAsO4)2, (NH4)2VOF4, K2VOF4 and alpha-ZnV3O8 were calculated. It was stated that in the compound In2VO5 zigzag spin chains are frustrated, since the ratio (J2/J1) of competing antiferromagnetic (AF) nearest- (J1) and AF next-to-nearest-neighbour (J2) couplings is equal to 1.68 that exceeds the Majumdar-Ghosh point by 1/2. In other compounds the zigzag spin chains are AF magnetically ordered single chains as value of ratios J2/J1 is close to zero. The interchain couplings were analyzed in detail.Comment: 14 pages, 6 figure, 1 table, minor change

ГЛОБАЛЬНА ФІНАНСОВА СИСТЕМА: РИЗИКИ ТА ПРОГНОЗИ

The article is devoted to the analysis of the causes of the series of successively occurring crisis phenomena in the global financial system, the identification of imbalances and financial risks of development at the present stage. The article is dedicated to the evolution of the overall structure of the international financial sector, discusses the role of the euro area financial sector in financing non–financial corporations and analyses interconnectedness across different parts of the financial sector in order to assess possible structural risks to financial stability in the euro area and in the world. definition of existing risks and imbalances in the development of the global financial and economic sphere, as well as the possible directions of their minimization. The purpose of the article is to  definition of existing risks and imbalances in the development of the global financial and economic sphere, as well as the possible directions of their minimization.Статья посвящена анализу причин серии последовательно возникающих кризисных явлений в мировой финансовой системе, выявлению дисбалансов и финансовых рисков развития на современном этапе. Статья посвящена эволюции общей структуры международного финансового сектора, обсуждается роль финансового сектора еврозоны в финансировании нефинансовых корпораций и анализируется взаимосвязь между различными секторами финансового сектора, чтобы оценить возможные структурные риски для Финансовой стабильности в зоне евро и в мире. Определение существующих рисков и дисбалансов в развитии мировой финансово–экономической сферы, а также возможные направления их минимизации. Цель статьи – определение существующих рисков и дисбалансов в развитии мировой финансово–экономической сферы, а также возможные направления их минимизации.Стаття присвячена аналізу причин серії послідовно виникаючих кризових явищ у світовій фінансовій системі, виявлення диспропорцій та фінансових ризиків розвитку на сучасному етапі. Стаття присвячена розвитку загальної структури міжнародного фінансового сектору, розглядається роль фінансового сектора зони євро в фінансуванні нефінансових корпорацій та аналізується взаємозв'язок між різними частинами фінансового сектору з метою оцінки можливих структурних ризиків Фінансова стабільність у зоні євро та у світі. Визначення існуючих ризиків та дисбалансів у розвитку світової фінансово–економічної сфери, а також можливі напрямки їх мінімізації. Метою статті є визначення існуючих ризиків та дисбалансів у розвитку світової фінансово–економічної сфери, а також можливі напрями їх мінімізації