Výsledky vyhľadávania
Názov Contribution of the massive photon decay channel to neutrino cooling of neutron stars Aut.údaje D. N. Voskresensky, Evgeni E. Kolomeitsev, B. Kämpfer Autor Voskresensky Dmitri (34%)
Spoluautori Kolomeitsev Evgeni E. 1970- (33%)
Kämpfer B. (33%)
Zdroj.dok. Journal of experimental and theoretical physics. Vol. 87, no. 2 (1998), pp. 211-217. - Woofbury : American Institute of Physics, 1998 Kľúč.slová luminosity matter excitations Jazyk dok. angličtina Krajina Spojené štáty Systematika 539.1 Anotácia 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. Kategória publikačnej činnosti ADC Číslo archívnej kópie 26369 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ 
nerozpoznaný
Názov Hot and dense pion gas with finite chemical potential Aut.údaje E. E. Kolomeitsev, D. N. Voskresensky, B. Kämpfer Autor Kolomeitsev Evgeni E. 1970- (34%)
Spoluautori Voskresensky Dmitri (33%)
Kämpfer B. (33%)
Zdroj.dok. 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 Kľúč.slová pion gas Bose-Einsteinova kondenzácia - Bose-Einstein condensation heavy ion collisions Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Poľsko Anotácia 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 Kategória publikačnej činnosti AFC Číslo archívnej kópie 21535 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika 
článok
Názov The impact of kaon polarization in nuclear matter on the K- production in heavy-ion collisions Aut.údaje Evgeni E. Kolomeitsev, D. N. Voskresensky, B. Kämpfer Autor Kolomeitsev Evgeni E. 1970- (34%) UMBFP06 - Katedra fyziky
Spoluautori Voskresensky Dmitri (33%)
Kämpfer B. (33%)
Zdroj.dok. International Journal of Modern Physics E. Vol. 5, no. 2 (1996), pp. 313-328. - Singapore : World Scientific Publishing, 1996 Kľúč.slová Pion-production Hadronic matter rovnice - equations Jazyk dok. angličtina Krajina Singapur Systematika 53 Anotácia 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. Kategória publikačnej činnosti ADE Číslo archívnej kópie 26370 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika nerozpoznaný
Názov Kaon polarization in nuclear matter Aut.údaje E. E. Kolomeitsev, D. N. Voskresensky, B. Kämpfer Autor Kolomeitsev Evgeni E. 1970- (34%) UMBFP06 - Katedra fyziky
Spoluautori Voskresensky Dmitri (33%)
Kämpfer B. (33%)
Zdroj.dok. Nuclear Physics A. Vol. 588, no. 4 (1995), pp. 889-917. - Amsterdam : Elsevier B.V., 1995 Kľúč.slová kaon polarization nuclear matter neutron matter kaon-nucleon interactions Jazyk dok. angličtina Krajina Nemecko Systematika 53 Kategória publikačnej činnosti ADC Číslo archívnej kópie 26446 Kategória ohlasu 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.
Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika článok