Evidence for Non-Gaussian Tail in 3-Dimensional Pion Emission Source at SPS

The NA49 experiment at CERN SPS has acquired a huge data set of Pb+Pb events over a broad range of energy and centrality during the last several years. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the first model-independent extraction and energy scan...

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Detalles Bibliográficos
Autores principales: Chung, P., Danielewicz, P.
Lenguaje:eng
Publicado: 2007
Materias:
Particle Physics
Nuclear Physics
Acceso en línea:https://dx.doi.org/10.1088/0954-3899/34/8/S166
https://dx.doi.org/10.1142/S0218301307007696
http://cds.cern.ch/record/1047748
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author Chung, P.
Danielewicz, P.
author_facet Chung, P.
Danielewicz, P.
author_sort Chung, P.
collection CERN
description The NA49 experiment at CERN SPS has acquired a huge data set of Pb+Pb events over a broad range of energy and centrality during the last several years. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the first model-independent extraction and energy scan of 3D emission sources for pion pairs at SPS energies. These 3D pion emission sources provide new insights into the nature of a long-range source previously reported by PHENIX at RHIC. The new results indicate that the pion source displays significant non-Gaussian tails in the longitudinal direction at 40 and 158 AGeV and in the outward direction at 158 AGeV.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
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spelling cern-10477482023-03-12T04:33:58Zdoi:10.1088/0954-3899/34/8/S166doi:10.1142/S0218301307007696http://cds.cern.ch/record/1047748engChung, P.Danielewicz, P.Evidence for Non-Gaussian Tail in 3-Dimensional Pion Emission Source at SPSParticle PhysicsNuclear PhysicsThe NA49 experiment at CERN SPS has acquired a huge data set of Pb+Pb events over a broad range of energy and centrality during the last several years. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the first model-independent extraction and energy scan of 3D emission sources for pion pairs at SPS energies. These 3D pion emission sources provide new insights into the nature of a long-range source previously reported by PHENIX at RHIC. The new results indicate that the pion source displays significant non-Gaussian tails in the longitudinal direction at 40 and 158 AGeV and in the outward direction at 158 AGeV.The NA49 experiment at CERN SPS has acquired a huge data set of Pb+Pb events over a broad range of energy and centrality during the last several years. This high statistics data set, coupled with a state-of-the-art analysis technique, allows for the first model-independent extraction and energy scan of 3D emission sources for pion pairs at SPS energies. These 3D pion emission sources provide new insights into the nature of a long-range source previously reported by PHENIX at RHIC. The new results indicate that the pion source displays significant non-Gaussian tails in the longitudinal direction at 40 and 158 AGeV and in the outward direction at 158 AGeV.arXiv:0707.2690oai:cds.cern.ch:10477482007-07-19
spellingShingle Particle Physics
Nuclear Physics
Chung, P.
Danielewicz, P.
Evidence for Non-Gaussian Tail in 3-Dimensional Pion Emission Source at SPS
title Evidence for Non-Gaussian Tail in 3-Dimensional Pion Emission Source at SPS
title_full Evidence for Non-Gaussian Tail in 3-Dimensional Pion Emission Source at SPS
title_fullStr Evidence for Non-Gaussian Tail in 3-Dimensional Pion Emission Source at SPS
title_full_unstemmed Evidence for Non-Gaussian Tail in 3-Dimensional Pion Emission Source at SPS
title_short Evidence for Non-Gaussian Tail in 3-Dimensional Pion Emission Source at SPS
title_sort evidence for non-gaussian tail in 3-dimensional pion emission source at sps
topic Particle Physics
Nuclear Physics
url https://dx.doi.org/10.1088/0954-3899/34/8/S166
https://dx.doi.org/10.1142/S0218301307007696
http://cds.cern.ch/record/1047748
work_keys_str_mv AT chungp evidencefornongaussiantailin3dimensionalpionemissionsourceatsps
AT danielewiczp evidencefornongaussiantailin3dimensionalpionemissionsourceatsps

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