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Title Contribution of the massive photon decay channel to neutrino cooling of neutron stars Author info D. N. Voskresensky, Evgeni E. Kolomeitsev, B. Kämpfer Author Voskresensky Dmitri (34%)
Co-authors Kolomeitsev Evgeni E. 1970- (33%)
Kämpfer B. (33%)
Source document Journal of experimental and theoretical physics. Vol. 87, no. 2 (1998), pp. 211-217. - Woofbury : American Institute of Physics, 1998 Keywords luminosity matter excitations Language English Country United States of America systematics 539.1 Annotation We consider massive photon decay reactions via intermediate states of electron-electron-holes and proton-proton-holes into neutrino-antineutrino pairs in the course of neutron star cooling. These reactions may become operative in hot neutron stars in the region of proton pairing where the photon due to the Higgs-Meissner effect acquires an effective mass m(gamma) that is small compared to the corresponding plasma frequency. The contribution of these reactions to neutrino emissivity is calculated; it varies with the temperature and the photon mass as T(3/2)m(gamma)(7/2) exp(-m(gamma)/T) for T < m(gamma). Estimates show that these processes appear as extra efficient cooling channels of neutron stars at temperatures T =10(9)-10(10) K. (C) 1998 American Institute of Physics. Public work category ADC No. of Archival Copy 26369 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ 
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Title Hot and dense pion gas with finite chemical potential Author info E. E. Kolomeitsev, D. N. Voskresensky, B. Kämpfer Author Kolomeitsev Evgeni E. 1970- (34%)
Co-authors Voskresensky Dmitri (33%)
Kämpfer B. (33%)
Source document Acta Physica Polonica B. Vol. 27, no. 11 (1996), pp. 3263-3270. - Kraków : Jagellonian University, 1996 ; MESON' 96 : Workshop on Production, Properties and Interactions of Mesons Workshop Keywords pion gas Bose-Einsteinova kondenzácia - Bose-Einstein condensation heavy ion collisions Form. Descr. články - journal articles Language English Country Poland Annotation A dense and hot pion system with a dynamically fixed particle number and an arbitrary charge is investigated with respect to ultra-relativistic heavy-ion collisions. The Lagrangian for describing such a system is derived from Weinberg's chiral Lagrangian for the pion-pion interaction. Pion polarization operators are calculated within the Hartree approximation. The pion spectrum in the isospin symmetrical gas is presented. The effective inmedium pion gap depends sensitively on the density and the temperature, and it is found to exceed both the free pion mass and the corresponding value for the pion gas in chemical equilibrium. The possibility of a BoseEinstein condensation is also discussed URL Link na plný text Link do databázy WoS Public work category AFC No. of Archival Copy 21535 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
article
Title The impact of kaon polarization in nuclear matter on the K- production in heavy-ion collisions Author info Evgeni E. Kolomeitsev, D. N. Voskresensky, B. Kämpfer Author Kolomeitsev Evgeni E. 1970- (34%) UMBFP06 - Katedra fyziky
Co-authors Voskresensky Dmitri (33%)
Kämpfer B. (33%)
Source document International Journal of Modern Physics E. Vol. 5, no. 2 (1996), pp. 313-328. - Singapore : World Scientific Publishing, 1996 Keywords Pion-production Hadronic matter rovnice - equations Language English Country Singapore systematics 53 Annotation The impact of the kaon polarization in nuclear matter on the K- yield in intermediate-energy heavy-ion collisions is investigated. Our scenario of the strange particle production and dynamics is based on an expanding fireball model. This allows for a proper account of in-medium effects. A relation between observed K+ and K- yields is derived. Differential K- cross-sections are calculated and compared with available experimental data taken at various collision energies. It turns out that in-medium effects can modify the K- yields by factors 2 to 5 at beam energies between 2 and 1 AGeV. Public work category ADE No. of Archival Copy 26370 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised
Title Kaon polarization in nuclear matter Author info E. E. Kolomeitsev, D. N. Voskresensky, B. Kämpfer Author Kolomeitsev Evgeni E. 1970- (34%) UMBFP06 - Katedra fyziky
Co-authors Voskresensky Dmitri (33%)
Kämpfer B. (33%)
Source document Nuclear Physics A. Vol. 588, no. 4 (1995), pp. 889-917. - Amsterdam : Elsevier B.V., 1995 Keywords kaon polarization nuclear matter neutron matter kaon-nucleon interactions Language English Country Germany systematics 53 Public work category ADC No. of Archival Copy 26446 Repercussion category WILCZEK, Frank. The CBM physics book compressed baryonic matter in laboratory experiments. Berlin : Springer-Verlag, 2011. Lecture notes in physics, vol. 814. ISBN 978-3-642-13292-6.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article