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Wyszukujesz frazę "relativistic heavy-ion collisions" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
A survey of multiplicity fluctuations in PHENIX
Autorzy:
Mitchell, J.
Powiązania:
https://bibliotekanauki.pl/articles/148455.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
fluctuations
multiplicity
relativistic heavy-ion collisions
Opis:
The PHENIX Experiment at the Relativistic Heavy Ion Collider has made measurements of event-by-event fluctuations in the charged particle multiplicity as a function of collision energy, centrality, collision species, and transverse momentum in heavy-ion collisions. The results of these measurements will be reviewed and discussed.
Źródło:
Nukleonika; 2006, 51,suppl.3; 89-92
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rapidity distributions of strange particles in Pb-Pb at 158 AGeV
Autorzy:
Bruno, G.
Powiązania:
https://bibliotekanauki.pl/articles/148576.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
relativistic heavy-ion collisions
strangeness
rapidity distributions
Opis:
The production at central rapidity of KS0, Lambda, Teta and Omega particles in Pb-Pb collisions at 158 AGeV has been measured by the NA57 experiment over a centrality range corresponding to the most central 53% of the inelastic Pb-Pb cross section. We present the rapidity distribution of each particle in the central rapidity unit. The distributions are analysed based on hydrodynamical models of the collisions.
Źródło:
Nukleonika; 2006, 51,suppl.3; 11-15
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the non-flow effects and fluctuations on the v2 measurements at RHIC
Autorzy:
Zhu, X.
Bleicher, M.
Powiązania:
https://bibliotekanauki.pl/articles/148374.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
relativistic heavy-ion collisions
collective flow
Monte Carlo simulation
Opis:
The cumulant method is applied to study elliptic flow (v2) in Au+Au collisions at s = 200 AGeV, with the UrQMD model. We find that the four and six-particle cumulants are good measures of the real elliptic flow over a wide range of centralities except for the most central and very peripheral events. There the cumulant method is affected by the v2 fluctuations. In mid-central collisions, the four and six-particle cumulants are shown to give a good estimation of the true differential v2, especially at large transverse momentum, where the two-particle cumulant method is heavily affected by the non-flow effects.
Źródło:
Nukleonika; 2006, 51,suppl.3; 37-41
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elliptic flow at RHIC with NeXSPheRIO
Autorzy:
Andrade, R.
Grassi, F.
Hama, Y.
Kodama, T.
Socolovski Jr., O.
Tavares, B.
Powiązania:
https://bibliotekanauki.pl/articles/148386.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
elliptic flow
relativistic heavy-ion collisions
quark-gluon plasma
Opis:
Elliptic flow at RHIC is computed event-by-event with NeXSPheRIO. Reasonable agreement with experimental results on v2(h) is obtained. Various effects are studied as well: reconstruction of impact parameter direction, freeze-out temperature, equation of state (with or without crossover), emission mechanism.
Źródło:
Nukleonika; 2006, 51,suppl.3; 17-20
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The evolution of correlation functions from low to high pT in PHENIX: from HBT to jets
Autorzy:
Mitchell, J.
Powiązania:
https://bibliotekanauki.pl/articles/148447.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
correlations
jets
Bose-Einstein correlations
relativistic heavy-ion collisions
Opis:
The PHENIX experiment at the Relativistic Heavy Ion Collider has performed a survey of momentum correlations ranging from 200 MeV/c to 7 GeV/c in sNN = 200 GeV p+p, d+Au, Au+Au, and sNN = 62 GeV Au+Au collisions. The correlations are measured separately for like-sign and unlike-sign pairs. Comparisons of the properties of the near-side peak amplitude and width as a function of centrality and transverse momentum for each collision species are presented and discussed.
Źródło:
Nukleonika; 2006, 51,suppl.3; 79-81
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How to measure specific heat using event-by-event average pT fluctuations
Autorzy:
Tannenbaum, M.
Powiązania:
https://bibliotekanauki.pl/articles/148439.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
relativistic heavy-ion collisions
event-by-event fluctuations
specific heat
particle correlations
Opis:
A simple way to visualize event-by-event average pT fluctuations is by assuming that each collision has a different temperature parameter (inverse pT slope) and that the ensemble of events has a temperature distribution about the mean, less than T greater than , with standard deviation sigmaT. PHENIX characterizes the non-random fluctuation of MpT, the event-by-event average pT, by FpT, the fractional difference of the standard deviation of the data from that of a random sample obtained with mixed events. This can be related to the temperature fluctuation: FpT = sigmaMpTdata/sigmaMpTrandom - 1 ~ (less than eta greated than-1)sigmaT 2/ less thanT greated than 2. Combining this with the Gavai et al. [5] and Korus et al. [6] definitions of the specific heat per particle, a simple relationship is obtained: cv/T3 = less than eta greated than/less than Ntot greated than )Ĺ(1/FpT). FpT is measured with a fraction less than eta greated than)Ntot* of the total particles produced, a purely geometrical factor representing the fractional acceptance, ~1/33 in PHENIX. Gavai et al. [5] predict that cv/T3 = 15, which corresponds to FpT ~ 0.20% in PHENIX, which may be accessible by measurements of MpT in the range 0.2 d pT d 0.6 GeV/c. In order to test the Gavai et al. prediction that cv/T3 is reduced in a QGP compared to the ideal gas value (15 compared to 21), precision measurements of FpT in the range 0.20% for 0.2 less-than or equal to pT greater-than or equal to 0.6 GeV/c may be practical.
Źródło:
Nukleonika; 2006, 51,suppl.3; 93-97
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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