A.S. Borisov , S.A. Dubrovina , N.. Nuritdinov , E.A. Osipova , I.V. Rakobolskaja , D.A. Talipov ,
№ 2 Calibration of X-Ray Emulsion Technique for Determination of EPC Energy,
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A.. Cabo , O.K. Kalashnikov , A.E. Shabad ,
№ 12 Gluonic gas in a vagnetic field.
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A.M. Gulian , V.G. Vale’ev , G.F. Zharkov ,
№ 27 REDUCED BOGOLUBOV-DEGENNES EQUATIONS AND THEIR CONNECTIONT WITH EIITENBERGER EQUATIONS
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The reduced form of the Bogolubov-DeGennes equations is obtained, whioh enter only first order space differential operators. This reduced system has some resemblance with the Dlrao equation. On the basis of the solutions of this system the case of olean superconductor in presence of static magnetic field is oonsidered and the concrete representation for Qreen-Bilenberger functions is found.
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V.I. Ritus ,
№ 45 THE MASS SHIFT OF ACCELERATED CHARGE
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Mass shift of en accelerated electron end a scalar charge in investigated in the classical limit. Тhе shift is due to inertia of the proper field, is analogous to reactive energy and is accompanied by a logarithmic singularity in the probability and the radiation spectrum. It arises at a sufficiently long charge acceleration by a constant field, which does the work, due to a four-current structure of the interaction (vectorness of the proper field). For an accelerated scalar charge the Base shift is absent, but inertia of a scalar field, the sаme as of an electromagnetic one, manifests itself in aperiodic oscillation of the proper field mаss, i.e. in a variable shift which is an odd function of the longitudinal charge velocity.
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L.E. Genina , I.E. Vasinyuk , A.S. Nanasian , Yu.P. Moznarov , Yu.A. Smorodin ,
№ 54 DENTOMETRIC PROCESSING 0F IMAGES ON X-RAY EMUL8ION CHAMBER FILMS WITH HPD SСАNNER.
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We describe a technical modernization OF optical-mechanical HFD scanner and the developed software allowing to solve a number of problems on automatical processing of images on X-ray emulsion chamber films and the determination of quantities of interest in highest-energy physics.
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В.И. Власов ,
№ 63 КАРТЫ МЕЖПЛАНЕТН0Й ПЛАЗМЫ ПО НАБЛЮДЕНИЯМ В АВГУСТЕ-ОКТЯБРЕ 1980 ГОДА
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We have carried out the observations of the interplanetary scintillations of approximately 150 radio sources daily at the Radioastronomical Laboratory of Lebedev Physical Institute in August — October 1980. The results of these observations allows the two-dimention maps (radio images) of scintillation indexes apace distribution to be plotted. Since the scintillation index of radio sources depends directly on the interplanetary plasma conditions these maps can be called the inetrplanetary plasma radio images. The maps are shown in Mg.1. (The same maps hare obtained in 1975, 76, 79 [3-4]). The scintillation indexes within values 0 < M ≤ 0.2; 0.2
E.S. Fradkin ,
A.A. Tseytlin ,
№ 70 Higher derivative Quantum Gravity Оne-loop counterms and Asymtotic Freedom
Скачать препринт [spoiler]We prove that the higher derivative quantum gravity is asymptotically free in all essential coupling constants by the calculation of one-loop counterterms (correcting the previous result of Julve and Tonin) and the solution of the corresponding ranormalisation group (HO) equations, strong arguments are presented in favour of the possibility that the renormalisable asymptotically free gravity establishes the asymptotic freedom for the effective mass parameters and non-gauge couplings in grand unified gauge theories. We also analyse the B.Q-equations in the Einstein theory with term and in the higher derivative conformal invar la at theories. Among other topics discussed are the restoration of the unitarity, the algorithm for the divergences of the determinant of the fourth order differential operator, the consistent renormalization of the boundary terms is the action, the one-loop № -function is the fourth derivative vector gauge theory and the mechanism of inducing bare gravity and gauge actions from the fermion effective action.
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B.V. Somov ,
№ 81 MAGNETIC RECONNECTION AND ENERGETICS OF A SOLAR FLARE (NEWS REVIEW)
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D.A. Morozov , N.B. Narozhny , V.I. Ritus ,
№ 84 VERTEX FUNCTION OF ELECTRON IN A CONSTANT ELECTROMAGNETIC FIELD
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The vertex function third-order in radiation field ia found for an electron in an external constant crossed field of arbitrary strength: It is shown that the radiative interaction «smears» the Airy function which describes the intensity of electron-photon interaction in the external field as a function of the nonconserved component of electron momentum. The qualitative relation between the third-and the first-order vertex functions is found for large values of the dynamic parameter . It is shown also that the radiative interaction does not change the order of magnitude of the squared mass transmitted in the vertex. The vertex function satisfies the Ward identity modified by the external field.
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B.V. Somov , S.T. Syrovatskii ,
№ 98 THERMAL TRIGGER FOR SOIAR FIARES AND CORONAL LOOPS FORMATION
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A longitudinal stability is considered for the quasi-steady current sheet which is uniform along the current. IN the MHD approximation, the stability problem la solved for the plane neutral sheet and small disturbances propagating along the current. The current sheet is shown to break-up into the system of more cold and more dense filaments due to radiative cooling. The filaments are parallel to magnetic field lines. This process corresponds to the condensation mode of a thermal instability and can play a trigger, role for a solar flare. Moreover, at the nonlinear stage of development, it can lead to the formation of very dense cold filaments surrounded by high-temperature low-density plasma inside the current sheet. Plowing into the filaments, hot plasma is cooled by radiation and compressed. Then the cold dense plasma flows out from the current sheet along the filaments. We think that the process under consideration is responsible for the often observed picture of an arcade of cold loops in the solar corona.
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V.I. Dokuchaev , L.M. Ozernoy ,
№ 103 DISSIPATIVE EVOLUTION OF STELLAR SYSTEMS
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I.M. Dremin , A.V. Leonidov ,
№ 105 An attempt of phenomenological treatment of confinement in quark-gluon jets
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A system of the modified evolution equations, in which we include the terms, phenomenologically treating the confinement of quarks and gluons, is investigated. The mean multiplicity of the hard partons in jet and their mean energy are calculated. It is shown that at the beginning of the evolution process these characterists coincide with those calculated from the usual evolution equations with the fixed er ;rgy out-off.
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O.K. Kalashnikov , V.B. Vologodsky ,
№ 108 НEАVY FERMIONS IN THE SU(5) MODEL AND MASS HERARCHY OF VECTOR BOSONS
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O.K. Kalashnikov ,
№ 109 EXPERIMENTAL CONSEQUENCE OF THE ASYMPTOTICALLY FREE SU(5)-MODEL
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О.П. Варнавский , А.В. Лариков , А.М. Леонтович ,
№ 112 КОГЕРЕНТНОЕ УСИЛЕНИЕ СВЕТА В Nd:YAG ПРИ ТЕМПЕРАТУРЕ 100K
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A.A. Tseytlin ,
№ 115 ON THE РОINCARE AND DE SITTER GAUGE THEORIES OF ORAVITY WITH PROPAGATING TORSION
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We consider a gauge approach to the gravitational theory based on the local Poincare P10 or De Sitter S10 groups. P10 gauge rotations and translations take .place in the tangent spaces to the space-time manifold. The independence of matter fields on the tangent vectors is interpreted as the necessity to consider the non-linear realization of P10 or S10 thus effectively breaking the full symmetry to the Lorentz group. The lagrangian we choose is the S10 Yang-Kills invariant with the space-time metric being expressed in terms of the translational part of the S10 non-linear gauge field. Various consequences of the theory are discussed, including the correspondence with the general relativity, the propagating spin-connectinn interactions, the analogy with the chiral Higgs mechanism, the instanton-like solutions, the possibility of the gravitational repulsion due to non-compactness of the Lorentz group and etc. We also discuss quantization of the theories with torsion with the special emphasis on the presence of the non-linear realization. We stress the possibility to obtain the renormalizable theory if the metric la not quantized but is expressed in terns of a mean value of the quantized S10-non-linear gauge field.
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E.A. Achundova , V.V. Dodonov , V.I. Man’ko ,
№ 119 WIGNER FUNCTIONS OF QUADRATIC SYSTEMS
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The explicit expressions for the Green functions of quantum systems with nonstationary Hamiltonians, which are general quadratic forma with respect of coordinates and moments, are obtained in the mixed (Wigner’s) representation. As an example, Green functions in mixed representation for an oscillator of a variable frequency being acted upon nonstationary external force and for an electron moving in a variable electromagnetic field are considered. We found the explicit formulae for equilibrium Wigner functions for most general quadratic systems with the Hamiltonians not depending on time, and for their significant particular cases — a multidimensional anisotropic oscillator and a particle in uniform electrical and magnetic fields. The explicit formulae for average meanings of arbitrary products of the coordinates and moments in the equilibrium thermodynamical state for systems with arbitrary quadratic Hamiltonians are found.
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L.N. Ozernoy , V.I. Dokuchaev ,
№ 125 DISSIPATIVE EVOLUTION OF COLLIJSIONLESS STELLAR SYSTEMS
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V.V. Dodonov , V.I. Man’ko , V.N. Rudenko ,
№ 127 QUANТUМ IINTEGRALS OF MOTION AND GRAVITY WAVE EXPERIMENT, MEASUREMENTS IN PURE QUA NTUM STATUS
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V.V. Krutov , V.V. Korneev , S.L. Mandelstam , A.S. Shlyaptseva , A.M. Urnov , A.V. Vinogradov , I.A. Zhitnik
№ 133 ОN LINE POLARIZATION MEASUREMENTS IN THE SOLAR FLARE SPECTRA OBTAINED ABOARD THE «INTERCOSMOS-4» SATELLITE
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E.S. Fradkin , A.A. Tseytlin ,
№ 137 QUANIIZATION OF TWO-DIMENSIONAL SUPERGRAVITY AHD CRITICAL DIMMTSIONS FOR STRING MODELS
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We consider the quantization of 0(2)two-dimensional supergravity corresponding to the model of string with the charge and spin. The effective action is obtained and it is shown that anomalies are absent for the space-time dimension 2n=4.
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J.L. Buchbinder , E.S. Fradkin , D.N. Gitman ,
№ 138 GENERATING FUNCTIONAL IN QUANTUM FIELD THEORY WITH UNSTABLE VACUUM
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The problem of finding mean values in the quantum field theory with an unstable vacuum state is considered. The generating functional which allows to calculate the above mentioned mean value is introduced. The representation with the help of the functional integral is given for this generating functional.
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B.P. Kondrat’ev , L.M. Ozernov ,
№ 143 TWO-COMPONENT MODEL OF A SPHERICAL STELLAR SYSTEM
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As a generalization of the widely used King’s model for a spherical stellar system containing stare of identical masses, a two-component model of an equilibrium stellar system consisting of a tare of two different masses is built proceeding from a proper generalization of the distribution function. In such a system, the principle of thermal equilibrium, generally speaking, does not hold, i.e. equipartition of mean kinetic energy between light and heavy stars is absent. The radial distribution of partial density and velocity dispersion for each of the components and of the total density and velocity dispersion la obtained. The profiles of both the total density and velocity dispersion differ considerably from those given by the one-component King’s model, especially in the centre of the system. In particular, the velocity dispersion of stars may have there a non-monotonous behaviour. The possibility to apply the many-component modal for the explanation of the recently deiscovered luminosity cups in the central regions of some elliptical galaxies la briefly discussed.
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A.P. Gus’kov , A.I. Korotchenko , A.A. Samokhin ,
№ 146 EFFECT OF INTENSITY MODULATION ON RADIATION-INDUCED MELTING AND VAPORIZATION OF SOLIDS
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Linear response of steady-state melting and evaporation processes to modulation of radiation intensity is considered in the framework of Stephan-like approach. It is shown that resonance behaviour of the surface temperature pertinent to the evaporation process persists in the case where evaporation front is preceded by melting transition.
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Д.Ф. Алфёров , Ю.А. Башмаков , К.А. Беловинцев , Е.Г. Бессонов , А.В. Серов , П.А. Черенков ,
№ 147 ИСТОЧНИК ИНДУЦИРОВАННОГО ИЗЛУЧЕНИЯ НА ОСНОВЕ РЕЗОНАНСНЫХ ЭЛЕКТРОННЫХ УСКОРИТЕЛЕЙ
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The main properties of the spontaneous incoherent and spontaneoua coherent radiation of the relativiatic particles in the undulators are briefly discussed. Funamentals of the classical theory of the induced undulator radiation sources are considered. The estimation of the possibilities of the utilization of the standard electron accelerators in reference to induced undulator radiation sоurсes (free electron lasers) In a Wide region of spectrum of the electromagnetic radiation era stated.
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J.K. Stamenov ,
№ 153 ABOUT THE REALISATION OF THE POSSIBILITY OF THE PRIMARY MASS COMPOSITION INVESTIGATION IN THE ENERGY REGION 1016-1018EV WITH THE AKBNO ARRAY
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The analysis of the primary mass composition of the 16 18 cosmic rays with energies 10-10 eV on the basis of the phenomenological charasteristics of the extensive air showers, registrated at different depths in the atmosphere has been carried out. The corresponding algorithms for the estimation of the primary nuclei groups relative contributions on the basis of the fluctuation muon and electron flux distributions in showers, effectively selected by AKENO EAS array, were developted. The values of the possible systematical errors were given.
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N.G. Basov ,
№ 160 SEMICONSDUCTOR LASERS
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Yu.A. Bashmakov , K.G. Bessnov ,
№ 171 ON CERTAIN FEATURES OF PARTICLE RADIATION IN NATURAL UNDULATORS — CRISTALS
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The characteristics of particle radiation in different undulators are qualitatively compared. Features peculiar to particle radiation in crystals (natural undulators) are discussed. Effects of particle energy and initial entry conditions on particle oscilation frequency are considered.
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V.P. Frolov ,
№ 172 VACUUM POLARIZATION NEAR THE EVENT HORIZON OF A CHARGED ROTATING BLACK HOLE
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The renormalized value of near the pole of the event horizon of the charged rotating black holes is obtained.
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N.N. Nikolaev , V.R. Zoller ,
№ 173 CORRELATIONS IS THE MULTIPLE PRODUCTION ON NUCLEAR TARGETS AND GLAUBER’S MULTIPLE SCATTERING THEORY
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The Capella-Krzywicki-Shabelsky extension of Glaubers multiple scattering theory to multiparticle production off nuclei la applied to description of correlation phenomena.
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A.A. Tseytlin ,
№ 175 ON THE FIRST ORDER FORMALISM IN QUANTUM GRAVITY
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We show that quantum gravity in the first order form, is equivalent to the Einstein theory only in the phases were one must take into account configurations with non-zero torsion, we also discuss the analogy with the first order formulation for gauge theories and the connection dependent counter-terms for the spinor theory.
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V.P. Frolov , G.A. Vilkovisky ,
№ 177 SUPERICALLY SYMMETRIC COLLAPSE IN QUANTUM GRAVITY
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A.I. Nikishov , N.V. Pichkurov ,
№ 182 e+e PAIR РRODUCTION IN FAST NUCLEUS-HEAVY ATOM COLLISION
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The Bethe-Maximon-Davies theory is extended for the веяв of the e+e- pair production by a virtual sрасe-like photon. As a source of such single virtual photon can serve any fast and heavy (compared with the electron) particle with not too high charge (.Z 1). The calculation of the cross section is performed under the assumption that the incident particle loses only a email portion of its energy for the pair production. It is shown that the Coulomb correction to the cross section, integrated over the directions of electron and positron moments, have the вше form as in the case of pair production by a real photon.
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A.S. Shlyaptseva , A.M. Urnov , A.V. Vinogradov ,
№ 193 ON DIAGN0STICS 0F SUPERАТНERМАL ELECTRONS IN HIGH-TEMPERATURE PLASMAS
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A.S. Shlyaptseva , A.M. Urnov , A.V. Vinogradov ,
№ 194 POLARIZATION OF LINES OF MULTIPLY-CHARGED IONS RICITED BY ELECTRON IMPACT
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V.A. Alekseev , A.V. Malyugin ,
№ 205 HARHOWING OF DOPPLER CONTOUR OF THE LINE DUE TO COLLISIONS
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V.V. Dodonov , V.I. Man’ko , V.D. Skarzhinsky ,
№ 206 CLASSICALLY EQUIVALENT HAMILTONIANS AND AMBIGUITIES OF QUANTIZATION: A PARTICLE IN A MAGNETIC FIELD
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New Hamiltonians yielding classical equations of motion for a charged particle in a uniform magnetic field are found. It is shown explicitly that after the canonical quantization the new Hamiltonians describe different quantum systems which have no in common with the usual quantum particle in a magnetic field, because the spectra and measurability properties of the same conserved observables ( kinetic energy, generalized angular momentum, etc.) for each system are quite different. The solutions and propagators of the Schrodinger equation with the new Hamiltonians are obtained.
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N.S. Fradkin , A.A. Tseytlin ,
№ 213 one-loop -function in conformal supergravitles
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We present the detailed calculation of the one-loop-function in the B1 conformal supergravity. The conforms! gravitino la found to give the negative contribution in the gravitational infinities while the «Weyl graviton» and the ordinary matter fields are known to give positive ones. s-funetlone are obtained also for the C-extended conformal supergravities. As a result же prove that the N=1,2,3 theories are asymptotically free in the Weyl coupling constant (just like the Weyl theory) while the N=4 theory is (one-loop) finite and thus anomaly free.
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E.L. Feinberg ,
№ 218 STATUS OF THE FIREBALL CONCEPT IN THEORY AND EXPERIMENT
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The fireball concept introduced, adopted and widely used in cosmic ray physics for more than two decades has been decidedly rejected by accelerator physicists. lt is only during the last 5-8 years that accellerator experiments in ТеV range have led to the cluster idea tbus marking convergence of two approaches to the particle physics. Analysis shows that the convergence is even wore essential than one night think. Heavy nonresonant unstable objects have natural place in any quantum field theory while any multiperi pheral type model when applied to accelerator experiments needs such objects. In general fireball concept seems to have a far reaching support both In theory and experiment.
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L.. Popova ,
№ 257 SEMI-IHCLUSIVE MODEL FOR HIGH ENERGY INTERACTIONS
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