Proton-Λ [Proton - lambda] correlations in central Pb + Pb collisions at √sNN [square root of s subscript NN] =17.3 GeV
The momentum correlation between protons and Λ [lambda] particles emitted from central Pb+Pb collisions at √sNN=17.3 [square root of s subscript NN = 17.3] GeV was studied by the NA49 experiment at the CERN Super Proton Synchrotron. A clear enhancement is observed for small relative momenta (qinv<...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/66175 https://orcid.org/0000-0001-8983-2169 |
| _version_ | 1811072752669425664 |
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| author | Roland, Christof E Roland, Gunther M |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Roland, Christof E Roland, Gunther M |
| author_sort | Roland, Christof E |
| collection | MIT |
| description | The momentum correlation between protons and Λ [lambda] particles emitted from central Pb+Pb collisions at √sNN=17.3 [square root of s subscript NN = 17.3] GeV was studied by the NA49 experiment at the CERN Super Proton Synchrotron. A clear enhancement is observed for small relative momenta (qinv<0.2 [q subscript inv <0.2] GeV). By fitting a theoretical model, which uses the strong interaction between the proton and the Λ [lambda] in a given pair, to the measured data, a value for the effective source size is deduced. Assuming a static Gaussian source distribution, we derive an effective radius parameter of RG=3.02±0.20(stat.)-0.16+0.44(syst.) [RG = 3.02±0.20 (stat.) subscript -0.16 superscript +0.44 (syst.)] fm. |
| first_indexed | 2024-09-23T09:11:47Z |
| format | Article |
| id | mit-1721.1/66175 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:11:47Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/661752023-02-26T04:23:27Z Proton-Λ [Proton - lambda] correlations in central Pb + Pb collisions at √sNN [square root of s subscript NN] =17.3 GeV Roland, Christof E Roland, Gunther M Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Roland, Christof E. Roland, Christof E. Roland, Gunther M. The momentum correlation between protons and Λ [lambda] particles emitted from central Pb+Pb collisions at √sNN=17.3 [square root of s subscript NN = 17.3] GeV was studied by the NA49 experiment at the CERN Super Proton Synchrotron. A clear enhancement is observed for small relative momenta (qinv<0.2 [q subscript inv <0.2] GeV). By fitting a theoretical model, which uses the strong interaction between the proton and the Λ [lambda] in a given pair, to the measured data, a value for the effective source size is deduced. Assuming a static Gaussian source distribution, we derive an effective radius parameter of RG=3.02±0.20(stat.)-0.16+0.44(syst.) [RG = 3.02±0.20 (stat.) subscript -0.16 superscript +0.44 (syst.)] fm. United States. Dept. of Energy (Grant no. DE-FG03-97ER41020/A000) Germany. Bundesministerium für Bildung und Forschung (06F 137) Deutsche Forschungsgemeinschaft (DFG) (GrantGA1480/2-1) Poland. Ministry of Science and Higher Education (1 P03B 006 30) Poland. Ministry of Science and Higher Education (1 P03B 127 30) Poland. Ministry of Science and Higher Education (0297/B/H03/2007/33) Poland. Ministry of Science and Higher Education (N N202 078735) Poland. Ministry of Science and Higher Education (N N202 078738) Poland. Ministry of Science and Higher Education (N N202 204638) Hungarian Scientific Research Foundation (OTKA) (T068506) Bulgarian National Science Fund (Ph-09/05) Ministry of Science, Education and Sports of the Republic of Croatia (Project 098-0982887-2878) Foundation for Fundamental Research on Matter (Netherlands) 2011-10-04T17:43:38Z 2011-10-04T17:43:38Z 2011-05 2011-03 Article http://purl.org/eprint/type/JournalArticle 0556-2813 http://hdl.handle.net/1721.1/66175 Anticic, T. et al. “Proton-Λ correlations in central Pb+Pb collisions at sqrt[s_{NN}]=17.3 GeV.” Physical Review C 83, 054906 (2011): n. pag. ©2011 American Physical Society https://orcid.org/0000-0001-8983-2169 en_US http://dx.doi.org/10.1103/PhysRevC.83.054906 Physical review C Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Roland, Christof E Roland, Gunther M Proton-Λ [Proton - lambda] correlations in central Pb + Pb collisions at √sNN [square root of s subscript NN] =17.3 GeV |
| title | Proton-Λ [Proton - lambda] correlations in central Pb + Pb collisions at √sNN [square root of s subscript NN] =17.3 GeV |
| title_full | Proton-Λ [Proton - lambda] correlations in central Pb + Pb collisions at √sNN [square root of s subscript NN] =17.3 GeV |
| title_fullStr | Proton-Λ [Proton - lambda] correlations in central Pb + Pb collisions at √sNN [square root of s subscript NN] =17.3 GeV |
| title_full_unstemmed | Proton-Λ [Proton - lambda] correlations in central Pb + Pb collisions at √sNN [square root of s subscript NN] =17.3 GeV |
| title_short | Proton-Λ [Proton - lambda] correlations in central Pb + Pb collisions at √sNN [square root of s subscript NN] =17.3 GeV |
| title_sort | proton λ proton lambda correlations in central pb pb collisions at √snn square root of s subscript nn 17 3 gev |
| url | http://hdl.handle.net/1721.1/66175 https://orcid.org/0000-0001-8983-2169 |
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