Autor: Jeon, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A statistical model analysis of yields and fluctuations in 200 GeV Au-Au collisions
Autorzy:: Torrieri, G.
Jeon, S.
Rafelski, J.
Powiązania:: https://bibliotekanauki.pl/articles/148435.pdf
Data publikacji:: 2006
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: fluctuations
freeze-out is small
heavy-ion collisions
statistical models
Opis:: We show that the simultaneous measurement of yields and fluctuations is capable of falsifying and constraining the statistical hadronization model. We show how such a measurement can test for chemical non-equilibrium, and distinguish between a high temperature chemically equilibrated freeze-out from a supercooled freeze-out with an oversaturated phase space. We perform a fit, and show that both yields and fluctuations measured at RHIC 200 GeV can be accounted for within the second scenario, with both the light and strange quark phase space saturated significantly above detailed balance. We point to the simultaneous fit of the K/đ fluctuation and the K*/K ratio as evidence that the effect of hadronic re-interactions after freeze-out is small.
Źródło:: Nukleonika; 2006, 51,suppl.3; 99-103
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Charge transfer fluctuations as a QGP signal
Autorzy:: Jeon, S.
Shi, L.
Bleicher, M.
Powiązania:: https://bibliotekanauki.pl/articles/148475.pdf
Data publikacji:: 2006
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: quark-gluon plasma
event-by-event fluctuations
charge transfer fluctuations
Opis:: In this study, we analyze the recently proposed charge transfer fluctuations within a finite pseudorapidity space. As the charge transfer fluctuation is a measure of the local charge correlation length, it is capable of detecting inhomogeneity in the hot and dense matter created by heavy-ion collisions. We predict that going from peripheral to central collisions, the charge transfer fluctuations at midrapidity should decrease substantially while the charge transfer fluctuations at the edges of the observation window should decrease by a small amount. These are consequences of having a strongly inhomogeneous matter where the QGP component is concentrated around midrapidity. We also show how to constrain the values of the charge correlations lengths in both the hadronic phase and the QGP phase using the charge transfer fluctuations. Current manuscript is based on the two recent papers [10, 13].
Źródło:: Nukleonika; 2006, 51,suppl.3; 65-68
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

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