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Universal pion freeze-out in heavy-ion collisions
Based on an evaluation of recent systematic data on two-pion interferometry and on measured particle yields at mid-rapidity, 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 va...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2002
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.90.022301 http://cds.cern.ch/record/570547 |
| _version_ | 1780899247417196544 |
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| author | Adamova, D Agakichiev, G Appelshäuser, H Belaga, V Braun-Munzinger, P Castillo, A Cherlin, A Damjanovic, S Dietel, T Dietrich, L Drees, A Esumi, S I Filimonov, K Fomenko, K Fraenkel, Zeev Garabatos, C Glässel, P Hering, G Holeczek, J Kushpil, V Lenkeit, B C Ludolphs, W Maas, A Marin, A Milosevic, J Milov, A Miskowiec, D Panebratsev, Yu A Petchenova, O Yu Petracek, V Pfeiffer, A Rak, J Ravinovich, I Rehak, P Sako, H Schükraft, Jürgen Sedykh, S Shimansky, S S Slivova, J Specht, H J Stachel, J Sumbera, M Tilsner, H Tserruya, Itzhak Wessels, J P Wienold, T Windelband, B Wurm, J P Xie, W Yurevich, S Yurevich, V Schmitz, W |
| author_facet | Adamova, D Agakichiev, G Appelshäuser, H Belaga, V Braun-Munzinger, P Castillo, A Cherlin, A Damjanovic, S Dietel, T Dietrich, L Drees, A Esumi, S I Filimonov, K Fomenko, K Fraenkel, Zeev Garabatos, C Glässel, P Hering, G Holeczek, J Kushpil, V Lenkeit, B C Ludolphs, W Maas, A Marin, A Milosevic, J Milov, A Miskowiec, D Panebratsev, Yu A Petchenova, O Yu Petracek, V Pfeiffer, A Rak, J Ravinovich, I Rehak, P Sako, H Schükraft, Jürgen Sedykh, S Shimansky, S S Slivova, J Specht, H J Stachel, J Sumbera, M Tilsner, H Tserruya, Itzhak Wessels, J P Wienold, T Windelband, B Wurm, J P Xie, W Yurevich, S Yurevich, V Schmitz, W |
| author_sort | Adamova, D |
| collection | CERN |
| description | Based on an evaluation of recent systematic data on two-pion interferometry and on measured particle yields at mid-rapidity, 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 approximately 2.5 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 its value is constant at all currently available beam energies from AGS to RHIC. |
| id | cern-570547 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-5705472019-09-30T06:29:59Zdoi:10.1103/PhysRevLett.90.022301http://cds.cern.ch/record/570547engAdamova, DAgakichiev, GAppelshäuser, HBelaga, VBraun-Munzinger, PCastillo, ACherlin, ADamjanovic, SDietel, TDietrich, LDrees, AEsumi, S IFilimonov, KFomenko, KFraenkel, ZeevGarabatos, CGlässel, PHering, GHoleczek, JKushpil, VLenkeit, B CLudolphs, WMaas, AMarin, AMilosevic, JMilov, AMiskowiec, DPanebratsev, Yu APetchenova, O YuPetracek, VPfeiffer, ARak, JRavinovich, IRehak, PSako, HSchükraft, JürgenSedykh, SShimansky, S SSlivova, JSpecht, H JStachel, JSumbera, MTilsner, HTserruya, ItzhakWessels, J PWienold, TWindelband, BWurm, J PXie, WYurevich, SYurevich, VSchmitz, WUniversal pion freeze-out in heavy-ion collisionsNuclear Physics - ExperimentBased on an evaluation of recent systematic data on two-pion interferometry and on measured particle yields at mid-rapidity, 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 approximately 2.5 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 its value is constant at all currently available beam energies from AGS to RHIC.nucl-ex/0207008oai:cds.cern.ch:5705472002-07-16 |
| spellingShingle | Nuclear Physics - Experiment Adamova, D Agakichiev, G Appelshäuser, H Belaga, V Braun-Munzinger, P Castillo, A Cherlin, A Damjanovic, S Dietel, T Dietrich, L Drees, A Esumi, S I Filimonov, K Fomenko, K Fraenkel, Zeev Garabatos, C Glässel, P Hering, G Holeczek, J Kushpil, V Lenkeit, B C Ludolphs, W Maas, A Marin, A Milosevic, J Milov, A Miskowiec, D Panebratsev, Yu A Petchenova, O Yu Petracek, V Pfeiffer, A Rak, J Ravinovich, I Rehak, P Sako, H Schükraft, Jürgen Sedykh, S Shimansky, S S Slivova, J Specht, H J Stachel, J Sumbera, M Tilsner, H Tserruya, Itzhak Wessels, J P Wienold, T Windelband, B Wurm, J P Xie, W Yurevich, S Yurevich, V Schmitz, W Universal pion freeze-out in heavy-ion collisions |
| title | Universal pion freeze-out in heavy-ion collisions |
| title_full | Universal pion freeze-out in heavy-ion collisions |
| title_fullStr | Universal pion freeze-out in heavy-ion collisions |
| title_full_unstemmed | Universal pion freeze-out in heavy-ion collisions |
| title_short | Universal pion freeze-out in heavy-ion collisions |
| title_sort | universal pion freeze-out in heavy-ion collisions |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1103/PhysRevLett.90.022301 http://cds.cern.ch/record/570547 |
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