Autor: Rafelski, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Hadron resonance probes of QGP
Autorzy:: Torrieri, G.
Rafelski, J.
Powiązania:: https://bibliotekanauki.pl/articles/146400.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: hadron
hadronization
resonance
quark-gluon plasma
plasma
Opis:: We discuss the indirect and direct role of the short-lived resonances as probes of QGP freeze-out process. The indirect effect is the distortion of stable single particle yields and spectra by contributions of decaying resonances, which alter significantly the parameters obtained in fits to experimental data. We then discuss the direct observation of short-lived resonances as a probe of post-hadronization dynamics allowing to distinguish between different hadronization models.
Źródło:: Nukleonika; 2004, 49,suppl.2; 109-114
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: In Search of Entropy
Autorzy:: Letessier, J.
Rafelski, J.
Tounsi, A.
Powiązania:: https://bibliotekanauki.pl/articles/1931272.pdf
Data publikacji:: 1994-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 25.75.+r
05.30.Ch
12.38.Mh
Opis:: Entropy is a quantity characterizing the arrow of time in the evolution of a physical system - in every irreversible process the entropy increases. In elementary interactions such as relativistic collisions of two atomic nuclei there is considerable particle production and hence entropy production. We address here a number of questions which arise naturally in this context. When and how is entropy produced in a quantum process, such as is a nuclear collision? How is the particle production related to entropy production? How does one measure the entropy produced in the reaction? We also consider certain fundamental approaches to the problem of entropy definition in quantum physics.
Źródło:: Acta Physica Polonica A; 1994, 85, 4; 699-716
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

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

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