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[en] We identify the subset of cosmic rays observed by AGASA and Yakutsk experiments which exhibits the largest degree of autocorrelations. We search for astrophysical sources which can be responsible for these autocorrelations and find significant correlations with BL Lacs at small angles (∼ 2 deg. ) with probability of statistical fluctuation to be 3 x 10-4, including all penalties
Journal
Nuclear Physics. B, Proceedings Supplements; ISSN 0920-5632; 
; CODEN NPBSE7; v. 110(1-3); p. 501-503
; CODEN NPBSE7; v. 110(1-3); p. 501-503
[en] The effective potential of the SU(5) model is investigated both in high temperature and in low temperature apprximation. We observe that a domain structure of the universe with simultaneous existence of the gauge symmetries SU(4) x U(1) and SU(3) x SU(2) x U(1) in different domains could exist. Cosmological implications of this new phenomenon are discussed briefly. (orig.)
Journal
Phys. Lett., B; ISSN 0370-2693; ; v. 102(6); p. 397-400
; v. 102(6); p. 397-400
[en] A new type of astrophysical object is proposed: a clump of oscillations in a classical weakly interacting scalar field, such as an axion field. The central part of the object might be observable as a strong coherent radio source - a cosmic maser. The source would be powered by accretion of field from a peripheral zone. 23 references
Journal
[en] Extrema are found of the one-loop effective potential which depends upon the scalar field belonging to the adjoined representation fof the gauge group SU(N). Convenient formulas are derived Which determine masses of Higgs excitations in broken symmetry phases. Phase state diagrams are found in Coleman-Weinberg SU(N) model taking into account various interactions (in particular, for realistic SU(5) model taking into account interaction with 5-plet of Higgs fields)
Journal
Yadernaya Fizika; ISSN 0044-0027; ; v. 41(2); p. 547-559
; v. 41(2); p. 547-559
[en] The phase structure of the SU(5) Coleman-Weinberg theory in the one-loop approximation is obtained with account of temperature and space-time curvature. We show that the most essential contribution is that from the interaction between 5 and 24 scalar fields which reflects the existence of two strongly different mass scales in the model. A stability boundary of the SU(3) x SU(2) x U(1) phase is found. It is shown that the SU(4) x U(1) phase in the Coleman-Weinberg theory is unstable. (orig.)
Journal
Phys. Lett., B; ISSN 0370-2693; ; v. 146(5); p. 328-332
; v. 146(5); p. 328-332
[en] The following topics were covered: vacuum structure in gauge theories; QCD and the quark confinement problem; supersymmetry, supergravity and models in many-dimensional space-time; processes with large transverse momenta and multiloop calculations in quantum chromodynamics; models of Grand Unification; models of composite quarks and leptons; problems of astrophysics and cosmology; quarks degree of freedom in nuclear physics. refs.; figs.; tabs
Source
1987; 529 p; VNU Science Press; Utrecht (Netherlands); All-union seminar quarks '86; Tbilisi (USSR); 15-17 Apr 1986; ISBN 90-6764-097-2;
[en] The existence of a new type of astrophysical object is suggested. These are clusters of weakly interacting scalar particles. The central part of such an object can be observed as a cosmic maser due to stimulated decays of the particles. The field accretion from the peripheral area can supply the source with power. A new model of quasars is proposed. 24 refs
Source
Tavkhelidze, A.N.; Matveev, V.A.; Pivovarov, A.A.; Tkachev, I.I. (eds.); 529 p; ISBN 90-6764-097-2; ; 1987; p. 95-104; VNU Science Press; Utrecht (Netherlands); All-union seminar quarks '86; Tbilisi (USSR); 15-17 Apr 1986
; 1987; p. 95-104; VNU Science Press; Utrecht (Netherlands); All-union seminar quarks '86; Tbilisi (USSR); 15-17 Apr 1986
[en] It is shown that wormhole creation via classical fluctuations, being a necessary condition for an inflating world to appear accidentally, is compatible with global geometry constraints provided this process starts at the initial T+-region of space-time. (orig.)
Journal
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