Search results
Title Open and hidden strangeness in hadronic systems Author info Boris Tomášik, Evgeni E. Kolomeitsev Author Tomášik Boris 1972- (50%) UMBFP06 - Katedra fyziky
Co-authors Kolomeitsev Evgeni E. 1970- (50%) UMBFP06 - Katedra fyziky
Source document Acta Physica Polonica B : proceedings supplement. Vol. 5, no. 2 (2012), pp. 201-206. - Kraków : Jagellonian University, 2012 ; Strangeness in Quark Matter conference Keywords atómová fyzika zrážky ťažkých iónov produkcia podivnosti Language English Country Poland systematics 539 Public work category AFC No. of Archival Copy 24678 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
unrecognised
Title Signatures of fireball fragmentation at the phase transition Par.title Znaky fragmentácie horúcej zóny pri fázovom prechode Author info Boris Tomášik Author Tomášik Boris 1972- (100%) UMBFP06 - Katedra fyziky
Source document Acta Physica Polonica B : proceedings supplement. Vol. 3, no. 4 (2010), s. 841-846. - Kraków : Jagellonian University, Institute of Physics, 2010 / Praszalowicz Michal Keywords atómová fyzika fázové prechody quark-gluon plasma Language English Country Poland systematics 539 Public work category ADE No. of Archival Copy 18652 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised
Title The contribution of hard processes to elliptic flow Author info Boris Tomášik Author Tomášik Boris 1972- (100%) UMBFP06 - Katedra fyziky
Source document Proceedings of Science. HIGH-pTLHC 020 (2009), p. 1-7. - Trieste : SISSA, 2009 Keywords atómová fyzika heavy ion collisions Language English Country Italy systematics 539 URL http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=76 http://pos.sissa.it/archive/conferences/076/020/HIGH-pTLHC_020.pdf Public work category ADE No. of Archival Copy 14158 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ unrecognised
Title Computer based experiments in nuclear physics at secondary school Par.title Počítačom podporované experimenty z jadrovej fyziky na gymnáziách Author info Ľuboš Krišťák Author Krišťák Ľuboš UMBFP06 - Katedra fyziky
Source document Využívanie IKT v prírodovednom vzdelávaní : zborník abstraktov z medzinárodnej konferencie 20.09.2006 Nitra. S. [1 s.]. - Nitra : Univerzita Konštantína Filozofa, 2006 Keywords AFF počítačové experimenty atómová fyzika computer experiments nuclear physics Language English, Slovak Country Slovak Republic systematics 539.1 Public work category AFF No. of Archival Copy 4732 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ 
article
Title Multichannel scattering and Feshbach resonances: Effective theory, phenomenology, and many-body effects Author info G. M. Bruun, A. D. Jackson, Evgeni E. Kolomeitsev Author Bruun G. M. (34%)
Co-authors Jackson A. D. (33%)
Kolomeitsev Evgeni E. 1970- (33%)
Source document Physical Review A : covering atomic, molecular, and optical physics and quantum information. Vol. 71, no. 5 (2005), pp. 2713-2713. - Maryland : American Physical Society, 2005 Keywords atómová fyzika cold atoms T-matrix Language English Country United States of America systematics 539.1 Annotation A low-energy effective theory based on a microscopic multichannel description of the atom-atom interaction is derived for the scattering of alkali-metal atoms in different hyperfine states. This theory describes all scattering properties, including medium effects, in terms of the singlet and triplet scattering lengths and the range of the atom-atom potential and provides a link between a microscopic description of Feshbach scattering and more phenomenological approaches. It permits the calculation of medium effects on the resonance coming from the occupation of closed channel states. The examination of such effects is demonstrated to be of particular relevance to an experimentally important Feshbach resonance for 40K atoms. We analyze a recent rethermalization rate experiment on 40K and demonstrate that a measurement of the temperature dependence of this rate can determine the magnetic moment of the Feshbach molecule. Finally, the energy dependence of the Feshbach interaction is shown to introduce a negative effective range inversely proportional to the width of the resonance. Since our theory is based on a microscopic multichannel picture, it allows the explicit calculation of corrections to commonly used approximations such as the neglect of the effective range and the treatment of the Feshbach molecule as a point boson Public work category ADC No. of Archival Copy 26412 Repercussion category ZHU, Shangguo - TAN, Shina. Universality in s-wave and higher partial-wave Feshbach resonances : an illustration with a single atom near two scattering centers. In Physical review A. ISSN 1050-2947, 2013, vol. 87, no. 6, art. no. 063029.
SORENSEN, Peder K. - FEDOROV, Dmitri V. - JENSEN, Aksel S. Three-body recombination rates near a Feshbach resonance within a two-channel contact interaction model. In Few-body systems. ISSN 0177-7963, 2013, vol. 54, no. 5-6, pp. 579-590.
SORENSEN, Peder K. - FEDOROV, Dmitri V. - JENSEN, Aksel S. Three-body recombination with two-channel contact interactions. In Few-body systems. ISSN 0177-7963, 2013, vol. 54, no. 5-6, pp. 591-595.
ZINNER, N.T. Efimov trimers near the zero-crossing of a Feshbach resonance. In Few-body systems. ISSN 0177-7963, 2013, vol. 54, no. 5-6, pp. 597-603.
FEDOROV, D.V. - JENSEN, A.S. Two-channel Skyrme-Hartree-Fock model for Bose-Einstein condensate near Feshbach resonance. In Few-body systems. ISSN 0177-7963, 2013, vol. 54, no. 5-6, pp. 619-627.
ZHU, Guojun - LEGGETT, Anthony J. BEC-BCS crossover with Feshbach resonance for a three-hyperfine-species model. In Physical review A. ISSN 1050-2947, 2013, vol. 87, no. 2, art. no. 023627.
WANG, Yujun - D´INCAO, Jose P. - ESRY, Brett D. Ultracold few-body systems. In Advances in atomic, molecular, and optical physics. ISSN 1049-250X, 2013, vol. 62, pp. 1-115.
SARJONEN, R. - SAARELA, M. - MAZZANTI, F. The effective two-particle interaction of cold atoms as derived from bragg scattering. In Journal of low temperature physics. ISSN 0022-2291, 2012, vol. 169, no. 5-6, pp. 400-422.
KIM, Hyungwon - HUSE, David A. Heat and spin transport in a cold atomic Fermi gas. In Physical review A. ISSN 1050-2947, 2012, vol. 86, no. 5, art. no. 053607.
ZINNER, N. T. Universal two-body spectra of ultracold harmonically trapped atoms in two and three dimensions. In Journal of physics A : mathematical and theoretical. ISSN 1751-8113, 2012, vol. 45, no. 20, art. no. 205302.
QI, Ran - ZHAI, Hui. Highly polarized Fermi gases across a narrow Feshbach resonance. In Physical review A. ISSN 1050-2947, 2012, vol. 85, no. 4, art. no. 041603.
MASSIGNAN, P. Polarons and dressed molecules near narrow Feshbach resonances. In EPL. ISSN 0295-5075, 2012, vol. 98, no. 1, art. no. 10012.
SIMONUCCI, Stefano - GARBEROGLIO, Giovanni - TAIOLI, Simone. Finite-range effects in dilute Fermi gases at unitarity. In Physical review A. ISSN 1050-2947, 2011, vol. 84, no. 4, art. no. 043639.
GAO, Bo. Analytic description of atomic interaction at ultracold temperatures. II. Scattering around a magnetic Feshbach resonance. In Physical review A. ISSN 1050-2947, 2011, vol. 84, no. 2, art. no. 022706.
WANG, Yujun - D´INCAO, J. P. - ESRY, B. D. Ultracold three-body collisions near narrow Feshbach resonances. In Physical review A. ISSN 1050-2947, 2011, vol. 83, no. 4, art. no. 042710.
DE SILVA, Theja N. Density profiles and density oscillations of an interacting three-component normal Fermi gas. In Journal of physics B : atomic molecular and optical physics. ISSN 0953-4075, 2010, vol. 43, no. 3, art. no. 035301.
CRAGG, George E. - KERMAN, Arthur K. On the quantum instability of attractive Bose systems. In Advances in theoretical and mathematical physics. ISSN 1095-0761, 2010, vol. 14, no. 1, pp. 29-86.
BLACKLEY, Caroline L. - JULIENNE, Paul S. - HUTSON, Jeremy M. Effective-range approximations for resonant scattering of cold atoms. In Physical review A. ISSN 1050-2947, 2014, vol. 89, no. 4, art. no. 042701.
DYKE, P. - POLLACK, S.E. - HULET, R.G. Finite-range corrections near a Feshbach resonance and their role in the Efimov effect. In Physical review A. ISSN 1050-2947, 2013, vol. 88, no. 2, art. no. 023625.
FETTER, Alexander L. Quantum gases finite temperature and non-equilibrium dynamics foreword. In Quantum gases : finite temperature and non-equilibrium dynamics. Singapore : World scientific publishing, 2013. ISBN 978-1-848168-12-1.
HE, Lianyi - HU, Hui - LIU, Xia-Ji. Two-band description of resonant superfluidity in atomic Fermi gases. In Physical review A. ISSN 1050-2947, 2015, vol. 91, no. 2, art. no. 023622.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised
Title Relativistic mean-field models with effective hadron masses and coupling constants, and rho(-) condensation Author info Evgeni 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. 759, no. 3-4 (2005), pp. 373-413. - Amsterdam : Elsevier B.V., 2005 Keywords atómová fyzika 1st order phase chiral-symmetry restoration vector-mesons Language English Country Netherlands systematics 539.1 Annotation We study relativistic mean-field models with hadron masses and coupling constants depending self-consistently on a scalar meson field. We demonstrate that by the field redefinition some models can be equivalently transformed into each other. Thereby the large variety of scaling functions for masses and couplings can be reduced to a restricted set of functions with a constrained dependence on a scalar field. We show how by choosing properly the latter scaling functions one may stiffen or soften the equation of state at high densities and simultaneously increase the threshold density for the direct Urca process without any change of the description of nuclear matter close to the saturation density. The stiffening of the equation of state might be motivated by recent neutron star mass measurements, whereas the increase of the threshold density for the direct Urca process (n(crit)(DU)) is motivated by the analysis of neutron star cooling data. The high value n(crit)(DU) also follows from the variational calculations of the A18 + delta v + UIX* Urbana-Argonne model. We demonstrate that if a rho meson is included in a mean-field model as a non-Abelian gauge boson, then there is a possibility for a charged rho-meson condensation in dense nuclear matter. We show that such a novel phase can be realized in neutron star interiors already for sufficiently low densities, typically similar to 3-4n(0), where no is the nuclear saturation density. In the framework of the relativistic mean field model the new phase arises in a second-order phase transition. The appearance of a rho(-) condensate significantly alters the proton fraction in a neutron star but changes moderately the equation of state. The neutrino emissivity of the processes involving a rho(-) meson condensate is estimated Public work category ADC No. of Archival Copy 26415 Repercussion category VOSKRESENSKAYA, M. D. - TYPEL, S. Constraining mean-field models of the nuclear matter equation of state at low densities. In Nuclear physics A. ISSN 0375-9474, 2012, vol. 887, pp. 42-76.
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 unrecognised
Title Baryon resonances from chiral coupled-channel dynamics Author info Matthias F. M. Lutz, Evgeni E. Kolomeitsev Author Lutz Matthias F. M. (50%)
Co-authors Kolomeitsev Evgeni E. 1970- (50%) UMBFP06 - Katedra fyziky
Action International Conference on Structure of Baryons . medzinárodná konferencia , 10. , Palaiseau , 25.-29.10.2004 Source document Nuclear Physics A. Vol. 755 (2005), pp. 29C-39C. - Amsterdam : Elsevier B.V., 2005 Keywords atómová fyzika Narrow Baryon Resonances chiral dynamics Language English Country Netherlands systematics 539.1 Annotation We discuss the formation of s- and d-wave baryon resonances as predicted by the chiral SU(3) symmetry of QCD. Based on the leading order term of the chiral Lagrangian a rich spectrum of molecules is generated, owing to final-state interactions. The spectrum of s- and d-wave baryon states with zero and non-zero charm is remarkably consistent with the empirical pattern. In particular, the recently announced Σc(2800) of the BELLE collaboration is reproduced with realistic mass and width parameters. Similarly, the dwave states Λc(2625) and Ξc(2815) are explained naturally as chiral excitations of JP = 3 2 + states. In the open-charm sector exotic multiplet structures are predicted. These findings support a radical conjecture: meson and baryon resonances that do not belong to the large-Nc ground state of QCD should be viewed as hadronic molecular states Public work category ADC No. of Archival Copy 26410 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised