Cargando…
Centrality dependence of the expansion dynamics in Pb-Pb collisions at 158 A GeV/c
Two-particle correlation functions of negatively charged hadrons from Pb-Pb collisions at 158 GeV/c per nucleon have been measured by the WA97 experiment at the CERN SPS. A Coulomb correction procedure that assumes an expanding source has been implemented. Within the framework of an expanding therma...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
---|---|
Lenguaje: | eng |
Publicado: |
2001
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.1088/0954-3899/27/11/311 http://cds.cern.ch/record/516119 |
_version_ | 1780897622493495296 |
---|---|
author | Antinori, F. Beusch, W. Bloodworth, I.J. Bruno, G.E. Caliandro, R. Carrer, N. Bari, D.Di Liberto, S.Di Elia, D. Evans, D. Fanebust, K. Fayazzadeh, F. Fini, R.A. Ghidini, B. Grella, G. Helstrup, H. Henriquez, M. Holme, A.K. Jacholkowski, A. Jones, G.T. Kinson, J.B. Knudson, K. Králik, I. Lenti, V. Lietava, R. Loconsole, R.A. Løvhøiden, G. Manzari, V. Mazzoni, M.A. Meddi, F. Michalon, A. Michalon-Mentzer, M.E. Morando, M. Norman, P.I. Pastircák, B. Quercigh, E. Röhrich, D. Romano, G. Safarík, K. Sándor, L. Segato, G. Staroba, P. Thompson, M. Urbán, J. Vik, T. Baillie, O.Villalobos Virgili, T. Votruba, M.F. Závada, P. |
author_facet | Antinori, F. Beusch, W. Bloodworth, I.J. Bruno, G.E. Caliandro, R. Carrer, N. Bari, D.Di Liberto, S.Di Elia, D. Evans, D. Fanebust, K. Fayazzadeh, F. Fini, R.A. Ghidini, B. Grella, G. Helstrup, H. Henriquez, M. Holme, A.K. Jacholkowski, A. Jones, G.T. Kinson, J.B. Knudson, K. Králik, I. Lenti, V. Lietava, R. Loconsole, R.A. Løvhøiden, G. Manzari, V. Mazzoni, M.A. Meddi, F. Michalon, A. Michalon-Mentzer, M.E. Morando, M. Norman, P.I. Pastircák, B. Quercigh, E. Röhrich, D. Romano, G. Safarík, K. Sándor, L. Segato, G. Staroba, P. Thompson, M. Urbán, J. Vik, T. Baillie, O.Villalobos Virgili, T. Votruba, M.F. Závada, P. |
author_sort | Antinori, F. |
collection | CERN |
description | Two-particle correlation functions of negatively charged hadrons from Pb-Pb collisions at 158 GeV/c per nucleon have been measured by the WA97 experiment at the CERN SPS. A Coulomb correction procedure that assumes an expanding source has been implemented. Within the framework of an expanding thermalized source model the size and dynamical state of the collision fireball at freeze-out have been reconstructed as a function of the centrality of the collision. Less central collisions exhibit a different dynamics than central ones: both transverse and longitudinal expansion velocities are slower, the expansion duration is shorter and the system freezes out showing smaller dimensions and higher temperature. |
id | cern-516119 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2001 |
record_format | invenio |
spelling | cern-5161192019-09-30T06:29:59Zdoi:10.1088/0954-3899/27/11/311http://cds.cern.ch/record/516119engAntinori, F.Beusch, W.Bloodworth, I.J.Bruno, G.E.Caliandro, R.Carrer, N.Bari, D.DiLiberto, S.DiElia, D.Evans, D.Fanebust, K.Fayazzadeh, F.Fini, R.A.Ghidini, B.Grella, G.Helstrup, H.Henriquez, M.Holme, A.K.Jacholkowski, A.Jones, G.T.Kinson, J.B.Knudson, K.Králik, I.Lenti, V.Lietava, R.Loconsole, R.A.Løvhøiden, G.Manzari, V.Mazzoni, M.A.Meddi, F.Michalon, A.Michalon-Mentzer, M.E.Morando, M.Norman, P.I.Pastircák, B.Quercigh, E.Röhrich, D.Romano, G.Safarík, K.Sándor, L.Segato, G.Staroba, P.Thompson, M.Urbán, J.Vik, T.Baillie, O.VillalobosVirgili, T.Votruba, M.F.Závada, P.Centrality dependence of the expansion dynamics in Pb-Pb collisions at 158 A GeV/cParticle Physics - ExperimentTwo-particle correlation functions of negatively charged hadrons from Pb-Pb collisions at 158 GeV/c per nucleon have been measured by the WA97 experiment at the CERN SPS. A Coulomb correction procedure that assumes an expanding source has been implemented. Within the framework of an expanding thermalized source model the size and dynamical state of the collision fireball at freeze-out have been reconstructed as a function of the centrality of the collision. Less central collisions exhibit a different dynamics than central ones: both transverse and longitudinal expansion velocities are slower, the expansion duration is shorter and the system freezes out showing smaller dimensions and higher temperature.Two-particle correlation functions of negatively charged hadrons from Pb-Pb collisions at 158 GeV/c per nucleon have been measured by the WA97 experiment at the CERN SPS. A Coulomb correction procedure that assumes an expanding source has been implemented. Within the framework of an expanding thermalized source model the size and dynamical state of the collision fireball at freeze-out have been reconstructed as a function of the centrality of the collision. Less central collisions exhibit a different dynamics than central ones: both transverse and longitudinal expansion velocities are slower, the expansion duration is shorter and the system freezes out showing smaller dimensions and higher temperature.hep-ex/0108049oai:cds.cern.ch:5161192001-08-31 |
spellingShingle | Particle Physics - Experiment Antinori, F. Beusch, W. Bloodworth, I.J. Bruno, G.E. Caliandro, R. Carrer, N. Bari, D.Di Liberto, S.Di Elia, D. Evans, D. Fanebust, K. Fayazzadeh, F. Fini, R.A. Ghidini, B. Grella, G. Helstrup, H. Henriquez, M. Holme, A.K. Jacholkowski, A. Jones, G.T. Kinson, J.B. Knudson, K. Králik, I. Lenti, V. Lietava, R. Loconsole, R.A. Løvhøiden, G. Manzari, V. Mazzoni, M.A. Meddi, F. Michalon, A. Michalon-Mentzer, M.E. Morando, M. Norman, P.I. Pastircák, B. Quercigh, E. Röhrich, D. Romano, G. Safarík, K. Sándor, L. Segato, G. Staroba, P. Thompson, M. Urbán, J. Vik, T. Baillie, O.Villalobos Virgili, T. Votruba, M.F. Závada, P. Centrality dependence of the expansion dynamics in Pb-Pb collisions at 158 A GeV/c |
title | Centrality dependence of the expansion dynamics in Pb-Pb collisions at 158 A GeV/c |
title_full | Centrality dependence of the expansion dynamics in Pb-Pb collisions at 158 A GeV/c |
title_fullStr | Centrality dependence of the expansion dynamics in Pb-Pb collisions at 158 A GeV/c |
title_full_unstemmed | Centrality dependence of the expansion dynamics in Pb-Pb collisions at 158 A GeV/c |
title_short | Centrality dependence of the expansion dynamics in Pb-Pb collisions at 158 A GeV/c |
title_sort | centrality dependence of the expansion dynamics in pb-pb collisions at 158 a gev/c |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1088/0954-3899/27/11/311 http://cds.cern.ch/record/516119 |
work_keys_str_mv | AT antinorif centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT beuschw centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT bloodworthij centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT brunoge centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT caliandror centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT carrern centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT bariddi centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT libertosdi centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT eliad centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT evansd centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT fanebustk centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT fayazzadehf centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT finira centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT ghidinib centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT grellag centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT helstruph centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT henriquezm centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT holmeak centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT jacholkowskia centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT jonesgt centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT kinsonjb centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT knudsonk centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT kraliki centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT lentiv centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT lietavar centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT loconsolera centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT løvhøideng centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT manzariv centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT mazzonima centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT meddif centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT michalona centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT michalonmentzerme centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT morandom centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT normanpi centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT pastircakb centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT quercighe centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT rohrichd centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT romanog centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT safarikk centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT sandorl centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT segatog centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT starobap centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT thompsonm centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT urbanj centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT vikt centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT baillieovillalobos centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT virgilit centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT votrubamf centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc AT zavadap centralitydependenceoftheexpansiondynamicsinpbpbcollisionsat158agevc |