Julius Vanko | Comenius University (original) (raw)

Papers by Julius Vanko

Research paper thumbnail of ATLAS computing technical proposal

Institut National de Physique Nucléaire et de Physique des Particules.

Research paper thumbnail of ARES - a spectrometer for the investigation of rare particle decays and rare nuclear processes

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment, 1994

A magnetic spectrometer intended for a wide range of investigations of rare particle and nuclear ... more A magnetic spectrometer intended for a wide range of investigations of rare particle and nuclear processes is described. The spectrometer consists of cylindrical proportional chambers (˜ 15000 signal wires) with gas supply and gas leakage systems, cylindrical scintillation hodoscopes, a magnet, electronics with power supplies, and a data acquisition system. Basic characteristics of the spectrometer are discussed and results of first physics experiments are presented.

Research paper thumbnail of Search for mu + to e+e+e- decay

Journal of Physics G-nuclear and Particle Physics, 1991

Research paper thumbnail of Alternative Theory of Neutrino Oscillations

The formulation of the alternative theory of neutrino oscillations is presented. Also the applica... more The formulation of the alternative theory of neutrino oscillations is presented. Also the application of that theory to a system of neutrinos produced by a source is formulated and some basic formulae are derived.

Research paper thumbnail of Remarks upon Neutrino Mixing Hypothesis

It is shown that various versions of the neutrino mixing hypothesis are in a contradiction with g... more It is shown that various versions of the neutrino mixing hypothesis are in a contradiction with generally accepted facts and principles.There is also presented the possible alternative formulation of the neutrino oscillation theory and it is shown under what conditions this theory reproduces the known oscillation probability formula. In our approach (flavor) neutrinos are Dirac particles. In the case of Majorana neutrinos, or the nonrelativistic neutrinos (i.e. relic neutrinos) the problem could be more complicated.

Research paper thumbnail of Simple Model of Particle Detector and Arrival Time

We present the very simple model of a particle detector and the proposal for the calculation of t... more We present the very simple model of a particle detector and the proposal for the calculation of the average value of the time of arrival.

Research paper thumbnail of Exact solution for oscillations of two neutrinos within alternative theory of neutrino oscillations

We present one point of contact between the standard theory of neutrino oscillations and the alte... more We present one point of contact between the standard theory of neutrino oscillations and the alternative one, in which flavor neutrinos are described by states with definite masses. We show that both theories give the same results for static neutrinos only.

Research paper thumbnail of Quantum Field Theoretical Treatment of Neutrino Oscillations

The quantum field theoretical treatment of neutrino oscillations is formulated. The procedure how... more The quantum field theoretical treatment of neutrino oscillations is formulated. The procedure how to calculate the transition probability of one type neutrino into another is briefly outlined.

Research paper thumbnail of Localization of gravitational energy in ENU model and its consequences

The contribution provides the starting points and background of the model of Expansive Nondeceler... more The contribution provides the starting points and background of the model of Expansive Nondecelerative Universe (ENU), manifests the advantage of exploitation of Vaidya metrics for the localization and quantization of gravitational energy, and offers four examples of application of the ENU model, namely energy of cosmic background radiation, energy of Z and W bosons acting in weak interactions, hyperfine splitting observed for hydrogen 1s orbital. Moreover, time evolution of vacuum permitivity and permeability is predicted.%

Research paper thumbnail of Compatibility of the expansive nondecelerative universe model with the Newton gravitational theory and the general theory of relativity

Applying the Vaidya metrics in the model of Expansive Nondecelerative Universe (ENU) leads to com... more Applying the Vaidya metrics in the model of Expansive Nondecelerative Universe (ENU) leads to compatibility of the ENU model both with the classic Newton gravitational theory and the general theory of relativity in weak fields

Research paper thumbnail of Unification of Weak and Gravitational Interactions Stemming from Expansive Nondecelerative Universe Model

There is a deep interrelationship of the General Theory of Relativity and weak interactions in th... more There is a deep interrelationship of the General Theory of Relativity and weak interactions in the model of Expansive Nondecelerative Universe. This fact allows an independent determination of the mass of vector bosons Z and W, as well as the time of separation of electromagnetic and weak interactions.

Research paper thumbnail of A Challenge to Control Gravity via Applying Electromagnetic Low-Frequency Radiation - Theory and Proposed Model Experiments

Including Vaidya metric into the model of Expansive Nondecelerative Universe allows to localize t... more Including Vaidya metric into the model of Expansive Nondecelerative Universe allows to localize the energy of gravitational field. A term of effective gravitational range is introduced and classic Newton potential is substituted for Yukawa-type potential. It allows to allocate a typical frequency value to each gravitational field. Derived theoretical conclusions led us to investigate the effect of electromagnetic field with a precisely predetermined frequency and intensity on iron. We believe that under certain circumstances a decrease in iron gravitational mass should be observed. Two model experiments verifying the theoretical conclusions are proposed.

Research paper thumbnail of Model of Expansive Nondecelerativa Universe and unified approach to fundamental physical interactions

The contribution provides the backround of the model of Expansive Nondecelerative Universe, ratio... more The contribution provides the backround of the model of Expansive Nondecelerative Universe, rationalizes the introduction of Vaidya metrics allowing thus to localize and quantify gravitational energy. A unifying explanation of the fundamental physical interactions is accompanied by demonstration of some consequences and predictions relating to cosmological problems.

Research paper thumbnail of An Approach to Relate the Weak and Gravitational Interactions

Stemming from simple postulates of nondecelerative nature of the universe expansion and Vaidya me... more Stemming from simple postulates of nondecelerative nature of the universe expansion and Vaidya metric application, the paper offers some dependences and relations between the gravity and weak interactions. It presents a mode of independent determination of the mass of vector bosons Z and W, and it derives the time of separation of electromagnetic and weak interactions. Comparisons of theoretically derived and experimentally obtained data indicate the relevancy of the used mode and provide a hint for further investigation.

Research paper thumbnail of Localization of gravitational field energy and a procedure proposed for its experimental verification

Introduction of Vaidya metrics into the Expansive Nondecelerative Universe model allows to locali... more Introduction of Vaidya metrics into the Expansive Nondecelerative Universe model allows to localize the energy of gravitational field. On the assumption that there is an interaction of long-range gravitational and electromagnetic fields, the localization might be verified experimentally. In this contribution some details on such an experiment are given.

Research paper thumbnail of Analysis of quantum evaporation process of black holes in the model of Expansive Nondecelerative Universe

In the model of Expansive Nondecelerative Universe, black hole cannot totally evaporate via quant... more In the model of Expansive Nondecelerative Universe, black hole cannot totally evaporate via quantum evaporation process proposed by Hawking. In a limiting case, an equilibrium of gravitation creation and black hole evaporation can be reached keeping the surface of its horizon constant. This conclusion is in accordance with the second law of thermodynamics.

Research paper thumbnail of Ares spectrometer

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms, 1986

Research paper thumbnail of Low matter density cylindrical proportional chambers

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms, 1986

The construction, technology and characteristics of cyhndrical muhiwire proportionat chambers wit... more The construction, technology and characteristics of cyhndrical muhiwire proportionat chambers with a low amount of matter in the working volume and described.

Research paper thumbnail of ATLAS computing technical proposal

Institut National de Physique Nucléaire et de Physique des Particules.

Research paper thumbnail of ARES - a spectrometer for the investigation of rare particle decays and rare nuclear processes

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment, 1994

A magnetic spectrometer intended for a wide range of investigations of rare particle and nuclear ... more A magnetic spectrometer intended for a wide range of investigations of rare particle and nuclear processes is described. The spectrometer consists of cylindrical proportional chambers (˜ 15000 signal wires) with gas supply and gas leakage systems, cylindrical scintillation hodoscopes, a magnet, electronics with power supplies, and a data acquisition system. Basic characteristics of the spectrometer are discussed and results of first physics experiments are presented.

Research paper thumbnail of Search for mu + to e+e+e- decay

Journal of Physics G-nuclear and Particle Physics, 1991

Research paper thumbnail of Alternative Theory of Neutrino Oscillations

The formulation of the alternative theory of neutrino oscillations is presented. Also the applica... more The formulation of the alternative theory of neutrino oscillations is presented. Also the application of that theory to a system of neutrinos produced by a source is formulated and some basic formulae are derived.

Research paper thumbnail of Remarks upon Neutrino Mixing Hypothesis

It is shown that various versions of the neutrino mixing hypothesis are in a contradiction with g... more It is shown that various versions of the neutrino mixing hypothesis are in a contradiction with generally accepted facts and principles.There is also presented the possible alternative formulation of the neutrino oscillation theory and it is shown under what conditions this theory reproduces the known oscillation probability formula. In our approach (flavor) neutrinos are Dirac particles. In the case of Majorana neutrinos, or the nonrelativistic neutrinos (i.e. relic neutrinos) the problem could be more complicated.

Research paper thumbnail of Simple Model of Particle Detector and Arrival Time

We present the very simple model of a particle detector and the proposal for the calculation of t... more We present the very simple model of a particle detector and the proposal for the calculation of the average value of the time of arrival.

Research paper thumbnail of Exact solution for oscillations of two neutrinos within alternative theory of neutrino oscillations

We present one point of contact between the standard theory of neutrino oscillations and the alte... more We present one point of contact between the standard theory of neutrino oscillations and the alternative one, in which flavor neutrinos are described by states with definite masses. We show that both theories give the same results for static neutrinos only.

Research paper thumbnail of Quantum Field Theoretical Treatment of Neutrino Oscillations

The quantum field theoretical treatment of neutrino oscillations is formulated. The procedure how... more The quantum field theoretical treatment of neutrino oscillations is formulated. The procedure how to calculate the transition probability of one type neutrino into another is briefly outlined.

Research paper thumbnail of Localization of gravitational energy in ENU model and its consequences

The contribution provides the starting points and background of the model of Expansive Nondeceler... more The contribution provides the starting points and background of the model of Expansive Nondecelerative Universe (ENU), manifests the advantage of exploitation of Vaidya metrics for the localization and quantization of gravitational energy, and offers four examples of application of the ENU model, namely energy of cosmic background radiation, energy of Z and W bosons acting in weak interactions, hyperfine splitting observed for hydrogen 1s orbital. Moreover, time evolution of vacuum permitivity and permeability is predicted.%

Research paper thumbnail of Compatibility of the expansive nondecelerative universe model with the Newton gravitational theory and the general theory of relativity

Applying the Vaidya metrics in the model of Expansive Nondecelerative Universe (ENU) leads to com... more Applying the Vaidya metrics in the model of Expansive Nondecelerative Universe (ENU) leads to compatibility of the ENU model both with the classic Newton gravitational theory and the general theory of relativity in weak fields

Research paper thumbnail of Unification of Weak and Gravitational Interactions Stemming from Expansive Nondecelerative Universe Model

There is a deep interrelationship of the General Theory of Relativity and weak interactions in th... more There is a deep interrelationship of the General Theory of Relativity and weak interactions in the model of Expansive Nondecelerative Universe. This fact allows an independent determination of the mass of vector bosons Z and W, as well as the time of separation of electromagnetic and weak interactions.

Research paper thumbnail of A Challenge to Control Gravity via Applying Electromagnetic Low-Frequency Radiation - Theory and Proposed Model Experiments

Including Vaidya metric into the model of Expansive Nondecelerative Universe allows to localize t... more Including Vaidya metric into the model of Expansive Nondecelerative Universe allows to localize the energy of gravitational field. A term of effective gravitational range is introduced and classic Newton potential is substituted for Yukawa-type potential. It allows to allocate a typical frequency value to each gravitational field. Derived theoretical conclusions led us to investigate the effect of electromagnetic field with a precisely predetermined frequency and intensity on iron. We believe that under certain circumstances a decrease in iron gravitational mass should be observed. Two model experiments verifying the theoretical conclusions are proposed.

Research paper thumbnail of Model of Expansive Nondecelerativa Universe and unified approach to fundamental physical interactions

The contribution provides the backround of the model of Expansive Nondecelerative Universe, ratio... more The contribution provides the backround of the model of Expansive Nondecelerative Universe, rationalizes the introduction of Vaidya metrics allowing thus to localize and quantify gravitational energy. A unifying explanation of the fundamental physical interactions is accompanied by demonstration of some consequences and predictions relating to cosmological problems.

Research paper thumbnail of An Approach to Relate the Weak and Gravitational Interactions

Stemming from simple postulates of nondecelerative nature of the universe expansion and Vaidya me... more Stemming from simple postulates of nondecelerative nature of the universe expansion and Vaidya metric application, the paper offers some dependences and relations between the gravity and weak interactions. It presents a mode of independent determination of the mass of vector bosons Z and W, and it derives the time of separation of electromagnetic and weak interactions. Comparisons of theoretically derived and experimentally obtained data indicate the relevancy of the used mode and provide a hint for further investigation.

Research paper thumbnail of Localization of gravitational field energy and a procedure proposed for its experimental verification

Introduction of Vaidya metrics into the Expansive Nondecelerative Universe model allows to locali... more Introduction of Vaidya metrics into the Expansive Nondecelerative Universe model allows to localize the energy of gravitational field. On the assumption that there is an interaction of long-range gravitational and electromagnetic fields, the localization might be verified experimentally. In this contribution some details on such an experiment are given.

Research paper thumbnail of Analysis of quantum evaporation process of black holes in the model of Expansive Nondecelerative Universe

In the model of Expansive Nondecelerative Universe, black hole cannot totally evaporate via quant... more In the model of Expansive Nondecelerative Universe, black hole cannot totally evaporate via quantum evaporation process proposed by Hawking. In a limiting case, an equilibrium of gravitation creation and black hole evaporation can be reached keeping the surface of its horizon constant. This conclusion is in accordance with the second law of thermodynamics.

Research paper thumbnail of Ares spectrometer

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms, 1986

Research paper thumbnail of Low matter density cylindrical proportional chambers

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms, 1986

The construction, technology and characteristics of cyhndrical muhiwire proportionat chambers wit... more The construction, technology and characteristics of cyhndrical muhiwire proportionat chambers with a low amount of matter in the working volume and described.