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Názov On energy densities reached in heavy-ion collisions at the CERN SPS Aut.údaje J. Pišút, N. pišútová, B. Tomášik Autor Pišút Ján (34%)
Spoluautori Pišútová Neva (33%)
Tomášik Boris 1972- (33%)
Zdroj.dok. The European Physical Journal C : Particles and Fields. Vol. 29, no. 1 (2003), pp. 79-85. - Berlin : Springer-Verlag, 2003 Kľúč.slová dynamika - dynamics fyzika - physics Jazyk dok. angličtina Krajina Spojené štáty Systematika 53 Anotácia We present a few estimates of energy densities reached in heavy-ion collisions at the CERN SPS. The estimates are based on data and models of proton-nucleus and nucleus-nucleus interactions. In all of these estimates the maximum energy density in central Pb+Pb interactions is larger than the critical energy density epsilon(c) approximate to 0.7 GeV/fm(3) following from lattice gauge theory computations. In estimates which we consider as realistic the maximum energy density is about 2epsilon(c). In this way our analysis gives some support to claims that deconfined matter has been produced at the CERN SPS. Any definite statement requires a deeper understanding of formation times of partons and hadrons in nuclear collisions. We also compare our results with implicit energy estimates contained in earlier models of anomalous J/psi suppression in nuclear collisions. URL Link do databázy WoS Kategória publikačnej činnosti ADC Číslo archívnej kópie 689 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika 
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Názov An alternative model of jet suppression at RHIC energies Aut.údaje R. Lietava ... [et al.] Autor Lietava R. (25%)
Spoluautori Pišút Ján (25%)
Pišútová Neva (25%)
Tomášik Boris 1972- (25%)
Zdroj.dok. The European Physical Journal C : Particles and Fields. Vol. 28, no. 1 (2003), pp. 119-122. - Berlin : Springer-Verlag, 2003 Kľúč.slová heavy ion collisions quark sector Jazyk dok. angličtina Krajina Spojené štáty Systematika 53 Anotácia We propose a simple Glauber-type mechanism for the suppression of jet production up to transverse momenta of about 10 GeV/c at RHIC. For processes in this kinematic region, the formation time is smaller than the interval between two successive hard partonic collisions and the subsequent collision influences the jet production. The number of jets then roughly scales with the number of participants. Proportionality to the number of binary collisions is recovered for very high transverse momenta. The model predicts suppression of jet production in d + Au collisions at RHIC. URL Link do databázy WoS Kategória publikačnej činnosti ADC Číslo archívnej kópie 40005 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika nerozpoznaný
Názov Intermittent behaviour of bremsstrahlung photons produced in hadronic collisions at very high energies Aut.údaje Ján Pišút, Neva Pišútová, Boris Tomášik Autor Pišút Ján (34%)
Spoluautori Pišútová Neva (33%)
Tomášik Boris 1972- (33%)
Zdroj.dok. Physics Letters B. Vol. 368, no. 1-2 (1996), pp. 179-186. - Amsterdam : Elsevier B.V., 1996 Kľúč.slová fluctuations fyzika - physics Jazyk dok. angličtina Krajina Holandsko Systematika 53 Anotácia 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. Kategória publikačnej činnosti ADE Číslo archívnej kópie 687 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika nerozpoznaný
Názov Hanbury-Brown-Twiss correlations of bremsstrahlung photons in nuclear collisions Aut.údaje Ján Pišút, Neva Pišútová, Boris Tomášik Autor Pišút Ján (34%)
Spoluautori Pišútová Neva (33%)
Tomášik Boris 1972- (33%)
Zdroj.dok. Physics letters B. Vol. 345, no. 4 (1995), pp. 553-557. - Amsterdam : Elsevier science, 1995 Kľúč.slová heavy ion collisions interferometry Jazyk dok. angličtina Krajina Holandsko Systematika 53 Anotácia The dimension of the region emitting particles in nuclear collisions can be determined by Hanbury-Brown and Twiss (HBT) correlations of identical particles. In this note we demonstrate that this dimension as determined by the HBT correlation of bremsstrahlung photons is larger than the actual one due to the photon formation length. Qualitatively r(2)-->r(2)+a/omega(2) where the last term is due to the formation length being proportional to 1/omega, where omega is the energy of the photon. This phenomenon permits to ''see'' experimentally the photon formation length. URL http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS&DestLinkType=FullRecord&UT=WOS:A1995QJ71100037 Kategória publikačnej činnosti ADE Číslo archívnej kópie 688 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ nerozpoznaný