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Title Fluctuations in non-ideal pion gas with dynamically fixed particle number Author info E. E. Kolomeitsev, D. N. Voskresensky Author Kolomeitsev Evgeni E. 1970- (50%) UMBFP06 - Katedra fyziky
Co-authors Voskresensky Dmitri (50%)
Source document Nuclear Physics A. Vol. 973, (2018), pp. 89-103. - Amsterdam : Elsevier B.V., 2018 Keywords heavy ion collisions fluctuations Hartree approximation Bose-Einsteinova kondenzácia - Bose-Einstein condensation Language English Country Netherlands systematics 53 Annotation We consider a non-ideal hot pion gas with the dynamically fixed number of particles in the model with the λφ4interaction. The effective Lagrangian for the description of such a system is obtained after dropping the terms responsible for the change of the total particle number. Reactions π+π−↔π0π0, which deter-mine the isospin balance of the medium, are permitted. Within the self-consistent Hartree approximation we compute the effective pion mass, thermodynamic characteristics of the system and the variance of the particle number at temperatures above the critical point of the induced Bose–Einstein condensation when the pion chemical potential reaches the value of the effective pion mass. We analyze conditions for the con-densate formation in the process of thermalization of an initially non-equilibrium pion gas. The normalized variance of the particle number increases with a temperature decrease but remains finite in the critical point of the Bose–Einstein condensation. This is due to the non-perturbative account of the interaction and is in contrast to the ideal-gas case. In the kinetic regime of the condensate formation the variance is shown to stay finite also URL Link na plný text Public work category ADC No. of Archival Copy 43902 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
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Title On stability and fluctuations in an advertising model Author info Katarína Makovínyiová, Rudolf Zimka Author Makovínyiová Katarína (50%)
Co-authors Zimka Rudolf 1943- (50%) UMBEF05 - Katedra kvantitatívnych metód a informačných systémov
Source document Acta aerarii publici : vedecký časopis Ekonomickej fakulty Univerzity Mateja Bela v Banskej Bystrici. Roč. 11, č. mimoriadne číslo (2014), s. 93-100. - Banská Bystrica : Ekonomická fakulta Univerzity Mateja Bela, 2014 Keywords dynamic model equilibrium stabilita - stability fluctuations Language English Country Slovak Republic systematics 007 Public work category ADF No. of Archival Copy 30302 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika Bunches 2013-2014: 1-2 unrecognised
Title The use of Kolmogorov-Smirnov test in event-by-event analysis Author info Boris Tomášik ... [et al.] Author Tomášik Boris 1972- (40%) UMBFP06 - Katedra fyziky
Co-authors Melo Ivan (40%)
Torrieri Giorgio (10%)
Vogel Sascha (5%)
Bleicher Marcus (5%)
Action International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2009) . medzinárodná konferencia , 21. , Knoxville , 30.03.-04.04.2009 Source document Nuclear Physics A. Vol. 830 (2009), pp. 195C-198C. - Amsterdam : Elsevier B.V., 2009 Keywords heavy ion collisions fluctuations Language English Country Netherlands Annotation We propose to use the Kolmogorov-Smirnov test to uncover non-statistical differences between events created in heavy ion collisions within the same centrality class. The advantage of the method over other approaches which are currently in use, is that it is sensitive to any difference between the events and is not restricted to simple moments of the distribution of hadrons. The particular application examined here is the identification of the fireball decay due to spinodal fragmentation and/or sudden rise of the bulk viscosity. Public work category ADC No. of Archival Copy 16713 Repercussion category CHEN, D. - MACLACHLAN, S. - KILMER, M. Iterative parameter-choice and multigrid methods for anisotropic diffusion denoising. In Siam journal on scientific computing. ISSN 1064-8275, 2011, vol. 33, no. 5, pp. 2972-2994.
ZHANG, Yudong - WANG, Shuihua - PHILLIPS, Preetha - JI, Genlin. Binary PSO with mutation operator for feature selection using decision tree applied to spam detection. In Knowledge-based systems. ISSN 0950-7051, 2014, vol. 64, pp. 22-31.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised
Title Intermittent behaviour of bremsstrahlung photons produced in hadronic collisions at very high energies Author info Ján Pišút, Neva Pišútová, Boris Tomášik Author Pišút Ján (34%)
Co-authors Pišútová Neva (33%)
Tomášik Boris 1972- (33%)
Source document Physics Letters B. Vol. 368, no. 1-2 (1996), pp. 179-186. - Amsterdam : Elsevier B.V., 1996 Keywords fluctuations fyzika - physics Language English Country Netherlands systematics 53 Annotation Hanbury-Brown and Twiss correlations of bremsstrahlung photons produced in hadronic collisions at very high energies show intermittent features. The phenomenon is due to large longitudinal dimensions of the space-time evolution of hadronic collisions and to the fact that the rapidity of a bremsstrahlung photon need not be close to the rapidity of the charged particle radiating the photon. Public work category ADE No. of Archival Copy 687 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised