We analyze the bending of light by galaxies or clusters of galaxies in the presence of the Λ term. Going over to the Friedmann-Robertson-Walker (FRW) coordinates, used in fact for the description of actual observations, we demonstrate that the cosmological constant does not influence practically the lensing effect. The effect of the cosmological constant Λ on the bending of light by galaxies or clusters of galaxies was analyzed previously in numerous papers. It was pointed out long ago in Ref. [1] that in the Schwarzschild-de Sitter metric (derived in Ref. [2])), which includes the Λ-term, the latter does not enter at all the exact differential equation for the trajectory of a light ray. This result was confirmed and elaborated upon in Refs. [3–6]. Recently, however, the assertion was made in Ref. [8] that, though the above result is by itself correct, the Λ-term does contribute to the bending of light. This assertion, in its turn, was reiterated and elaborated upon in Refs. [9–13]. Here we investigate the problem in the FRW coordinates; they are the most relevant ones for the description of actual observations.
. We consider the electromagnetic production of positron in the collision of slow heavy nuclei, with the simultaneously produced electron captured by one of the nuclei. The cross-section of the discussed process exceeds essentially the cross-section of e^+e^- production.
The cross section for the electromagnetic production of a e + e − pair in the adiabatic scattering of heavy nuclei has been considered.
If torsion exists, it generates gravitational four-fermion interaction (GFFI), essential on the Planck scale. We analyze the influence of this interaction on the Friedmann Lemaitre- Robertson-Walker cosmology. Explicit analytical solution is derived for the problem where both the energy-momentum tensor generated by GFFI and the common ultrarelativistic energy-momentum tensor are included. We demonstrate that gravitational four-fermion interaction does not result in Big Bounce.
Low Dimensional Physics and Gauge Principles, pp. 192-199 (2013) No AccessCAPTURE AND EJECTION OF DARK MATTER BY THE SOLAR SYSTEMI. B. KhriplovichI. B. KhriplovichBudker Institute of Nuclear Physics 11 Lavrentjev pr., 630090 Novosibirsk, Russiahttps://doi.org/10.1142/9789814440349_0016Cited by:0 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail Abstract: We consider the capture and ejection of dark matter by the Solar System. Both processes are due to the gravitational three-body interaction of the Sun, a planet, and a dark matter particle. Simple estimates are presented for the capture cross-section, as well as for density and velocity distribution of captured dark matter particles close to the Earth. Keywords: dark matterSolar systemrestricted three-body problem FiguresReferencesRelatedDetails Low Dimensional Physics and Gauge PrinciplesMetrics History Keywordsdark matterSolar systemrestricted three-body problemPDF download
Юрий Михайлович Шатунов (к 70-летию со дня рождения), Бондарь А.Е., Кооп И.А., Кулипанов Г.Н., Левичев Е.Б., Пархомчук В.В., Переведенцев Е.А., Середняков С.И., Скринский А.Н., Тумайкин Г.М., Фадин В.С., Хазин Б.И., Хриплович И.Б.
The four-fermion gravitational interaction is induced by torsion, and gets dominating on the Planck scale. The regular, axial-axial part of this interaction by itself does not stop the gravitational compression. However, the anomalous, vector-vector interaction results in a natural way both in big bounce and in inflation.
We demonstrate that CP violation results in a difference of the partial decay rates of atoms and antiatoms. The magnitude of this difference is estimated.
We demonstrate that, at least at present, there is no convincing way to detect CP-violation in heavy-ion collisions.
If torsion exists, it generates gravitational four-fermion interaction (GFFI). This interaction gets dominating on the Planck scale. If one confines to the regular, axial-axial part of this interaction, the results do not comply with the Friedmann-Robertson-Walker (FRW) cosmology for the spatial flat or closed Universe. In principle, the anomalous, vector-vector interaction could restore the agreement.
Gennady Nikolaevich Kulipanov, Deputy Director of Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences (RAS) and Director of the Siberian Synchrotron and Terahertz Radiation Centre, Full Member of the RAS, celebrated his 70th birthday on January 25, 2012.
The four-fermion gravitational interaction is induced by torsion, and gets essential on the Planck scale. On this scale, the axial–axial contribution dominates strongly the discussed interaction. The energy–momentum tensor, generated by this contribution, is analyzed, as well as stability of the problem with respect to compression. The trace of this energy–momentum tensor can be negative.
We calculate the branching ratios of the K + → π 0 l + ν lγ ( l = e , µ) decays, and the T -odd triple momenta correlations ξ = q · [ p l × p π ]/ M K 3 , due to the electromagnetic final-state interaction, in these processes. The contributions on the order of ω −1 and ω 0 to the corresponding amplitudes are treated exactly. For the branching ratios, the corrections on the order of ω are estimated and demonstrated to be small. We compare the results with those of other authors. In some cases our results differ considerably from the previous ones.
Nikolai Sergeevich Dikansky (on his 70th birthday), Lev M Barkov, A E Bondar', Gennadii I Dimov, E P Kruglyakov, Gennadii N Kulipanov, Vasilii V Parkhomchuk, D V Pestrikov, Aleksandr N Skrinsky, Iosif B Khriplovich, Yuriy M Shatunov
This paper has been withdrawn by the author
We demonstrate that, at least at present, there is no convincing way to detect CP-violation in heavy-ion collisions.
The criticism contained in the recent preprint arxiv:1004.5258 is based essentially on misquoting the articles criticized therein. As to the conclusion advocated in that preprint, according to which the density of dark matter bound to the Solar System is small as compared to the dark-matter density in the Galactic halo, it is not clear whether this claim is correct.
We derive strict upper limits on the electric dipolemoment (EDM) of the W boson, which follow from the precision measurements of the electron and neutron EDM.