| Autor: |
Adamová D; Nuclear Physics Institute ASCR, 25068 Rez, Czech Republic., Agakichiev G, Appelshäuser H, Belaga V, Braun-Munzinger P, Castillo A, Cherlin A, Damjanović S, Dietel T, Dietrich L, Drees A, Esumi SI, Filimonov K, Fomenko K, Fraenkel Z, Garabatos C, Glässel P, Hering G, Holeczek J, Kushpil V, Lenkeit B, Ludolphs W, Maas A, Marín A, Milosević J, Milov A, Miśkowiec D, Panebrattsev Y, Petchenova O, Petrácek V, Pfeiffer A, Rak J, Ravinovich I, Rehak P, Sako H, Schmitz W, Schukraft J, Sedykh S, Shimansky S, Slívová J, Specht HJ, Stachel J, Sumbera M, Tilsner H, Tserruya I, Wessels JP, Wienold T, Windelband B, Wurm JP, Xie W, Yurevich S, Yurevich V |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2003 Jan 17; Vol. 90 (2), pp. 022301. Date of Electronic Publication: 2003 Jan 15. |
| DOI: |
10.1103/PhysRevLett.90.022301 |
| Abstrakt: |
Based on an evaluation of data on pion interferometry and on particle yields at midrapidity, we propose a universal condition for thermal freeze-out of pions in heavy-ion collisions. We show that freeze-out occurs when the mean free path of pions lambda(f) reaches a value of about 1 fm, which is much smaller than the spatial extent of the system at freeze-out. This critical mean free path is independent of the centrality of the collision and beam energy from the Alternating Gradient Synchrotron to the Relativistic Heavy Ion Collider. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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