Talk detail

MG15 - Talk detail

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 Participant

Gaina, Alexei

Institution

Institute of Applied Physics  - Academiei str. 5, M - Chisinau - - Moldova

Session

BH5

Accepted

Order

Time

Talk

Oral abstract

Title

The Black Hole Evaporation paradigm: A new Approach
Coauthors

Abstract

The author is considering 2 possible scenarios of Black Holes evaporation. First one coincide with well known S. Hawking’s (1974,1975) scenarios, according to which actually Black Holes (created after the Big Bang, perhaps) with should evaporate, while another, which would take into account the occurency of Mass particles Bound states ([1]), especially Bose mass particles, of which the Higgs boson is of special interest. The second scenarios suppose a concurrence between the Hawking process and Bose mass particles exponentially fast accumulation with a rate of Black Hole’s mass evolution. When the time is going to ∞ the mass of a Black Hole is going to 0. The time of diminishing by a half of the initial mass of a Black Hole is such, that it corresponds to ~ 54700 sec=15.19 hours for a Black Hole of mass nearly 1 mln tones in weight. This would occur due to generation of a Higgs boson (s=o) with mass m_Higgs=1Tev. If the Higgs boson mass is 125Gev, the time of diminishing by a half of the Black Hole’s mass would be ~ 97 sec. Reff: J.A. Wheeler, Quaderno, Acad. Naz. Dei Lincei, 1971, N.157, p.133 (Appendix)

Pdf file

 

Session

HR1

Accepted

Order

Time

Talk

Poster abstract

Title

Some forgotten relativists
Coauthors

Abstract

There is few ways to make history of Relativity and Cosmology. Some peoples, e.g. Dmitry Rabounski[1] having some preferential authors in Relativity (e.g. Abram Zelmanov) write articles, where cite only him, which is relativiely scarcely represented in databases, such as ADS NASA, SPIRES, Zentrlablatt fur Mathemtik. Other, e.g. me, is adding articles or books by some forgotten Relativist Physicists to Databases mentioned above. Here I would like just to show the names of some Relativistic Physicists, which had considerable impact on Relativity and Cosmology in the past, but are forgotten by actual researchers: Gheorghe Vranceanu (1900-1979), Gheorghe Gheorghiev (1907-1999), Teofil Vescan (1913-1963), Cleopatra Mociutchi-Tomozei (1929-2011),Cecile deWitt-Morette (1922-2017), Nikolay V. Mitskevich (b. 1931), Nicolas Ionescu-Pallas (1932-2017). By this I would like to invite researchers just to inspect more carefully databases mentioned above, searching these names. Reference: Rabounski, D.,Progress in Physics, Vol. 2,no 1, pp.35-37

Pdf file

 

Session

BH2

Accepted

Order

Time

Talk

Poster abstract

Title

Short wavelength scattering in a Schwarzschild field
Coauthors

Abstract

The purpose of this article is to review and classify a great number of articles in the area of scattering of particles and fields by Black Holes. In a case of mass fields the calculation of scattering matrix allows to calculate also the energies spectrum and time life of bound states for mass fields [1]. A second purpose is to give a calculation of quantum mechanical scattering in a short wavelength approximation for mass fields based on perturbations method. 2 various perturbation schemes can be developed, which give a slightly different results. The actual one is giving a result which agree exactly with calculations [2] in the massless limit. A comparison of this cross section has been made with gravitational self-action one, which would contribute at the same magnitude [3]. References: 1. Gaina, A.B., Kochorbe, F.G., JETP, 1987, 65, 211; 2. Sanchez, N., J. Math. Phys., 1976, 17, 688 ;3. Wetspfahl, K., Fortschr. Phys., 1985, 33(8), 417

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