- Tytuł:
- Pion entropy and phase space density in RHIC collisions
- Autorzy:
- Cramer, J.
- Powiązania:
- https://bibliotekanauki.pl/articles/147376.pdf
- Data publikacji:
- 2004
- Wydawca:
- Instytut Chemii i Techniki Jądrowej
- Opis:
-
We present the source-averaged phase space density
, the entropy per particle S pi/N pi, and the total pion entropy per participant (dSpi/dy)/Np extracted at midrapidity in six momentum intervals and seven centrality intervals, for pions produced in sNN = 130 GeV Au+Au collisions at RHIC. These are inferred from measured pi- momentum spectra and HBT correlation analysis of pion data from the STAR detector. The source-averaged pion phase space density reaches a plateau with centrality and is significantly larger than that observed for sNN = 17 GeV Pb+Pb central collisions at the CERN SPS. The entropy per particle Spi/Npi is relatively low, approaching the Landau limit. The total pion entropy per participant (dSpi/dy)/Np is about 6.5 š 0.1, independent of centrality, suggesting that there is no per-participant increase in initial entropy production with increasing collision centrality. - Źródło:
-
Nukleonika; 2004, 49,suppl.2; 41-44
0029-5922
1508-5791 - Pojawia się w:
- Nukleonika
- Dostawca treści:
- Biblioteka Nauki
Artykuł