Scaling properties in bulk and p[subscript T]-dependent particle production near midrapidity in relativistic heavy ion collisions
The centrality dependence of the midrapidity charged-particle multiplicity density (|η|<1) is presented for Au+Au and Cu+Cu collisions at RHIC over a broad range of collision energies. The multiplicity measured in the Cu+Cu system is found to be similar to that measured in the Au+Au system, for a...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/54811 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0002-4918-5128 |
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| author | Wyslouch, Boleslaw Wenger, Edward Allen Veres, Gabor Verdier, Robin Vaurynovich, Siarhei S. Stephans, George S. F. Reed, C. Kulinich, Piotr Kane, J. L. Henderson, C. Gulbrandsen, K. Ballintijn, Maarten Alver, Burak Han Busza, Wit van Nieuwenhuizen, Gerrit J Roland, Gunther M Roland, Christof E Loizides, Constantinos Li, W. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Wyslouch, Boleslaw Wenger, Edward Allen Veres, Gabor Verdier, Robin Vaurynovich, Siarhei S. Stephans, George S. F. Reed, C. Kulinich, Piotr Kane, J. L. Henderson, C. Gulbrandsen, K. Ballintijn, Maarten Alver, Burak Han Busza, Wit van Nieuwenhuizen, Gerrit J Roland, Gunther M Roland, Christof E Loizides, Constantinos Li, W. |
| author_sort | Wyslouch, Boleslaw |
| collection | MIT |
| description | The centrality dependence of the midrapidity charged-particle multiplicity density (|η|<1) is presented for Au+Au and Cu+Cu collisions at RHIC over a broad range of collision energies. The multiplicity measured in the Cu+Cu system is found to be similar to that measured in the Au+Au system, for an equivalent Npart, with the observed factorization in energy and centrality still persistent in the smaller Cu+Cu system. The extent of the similarities observed for bulk particle production is tested by a comparative analysis of the inclusive transverse momentum distributions for Au+Au and Cu+Cu collisions near midrapidity. It is found that, within the uncertainties of the data, the ratio of yields between the various energies for both Au+Au and Cu+Cu systems are similar and constant with centrality, both in the bulk yields and as a function of pT, up to at least 4 GeV/c. The effects of multiple nucleon collisions that strongly increase with centrality and energy appear to only play a minor role in bulk and intermediate transverse momentum particle production. |
| first_indexed | 2024-09-23T11:36:09Z |
| format | Article |
| id | mit-1721.1/54811 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:36:09Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/548112023-02-26T08:11:19Z Scaling properties in bulk and p[subscript T]-dependent particle production near midrapidity in relativistic heavy ion collisions Scaling properties in bulk and pT-dependent particle production near midrapidity in relativistic heavy ion collisions Wyslouch, Boleslaw Wenger, Edward Allen Veres, Gabor Verdier, Robin Vaurynovich, Siarhei S. Stephans, George S. F. Reed, C. Kulinich, Piotr Kane, J. L. Henderson, C. Gulbrandsen, K. Ballintijn, Maarten Alver, Burak Han Busza, Wit van Nieuwenhuizen, Gerrit J Roland, Gunther M Roland, Christof E Loizides, Constantinos Li, W. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Busza, Wit Wyslouch, Boleslaw Wenger, Edward Allen Veres, Gabor Verdier, Robin Vaurynovich, Siarhei S. van Nieuwenhuizen, Gerrit Jan Stephans, George S. F. Roland, Gunther M. Roland, Christof E. Reed, C. Loizides, Constantin Li, Wei Kulinich, Piotr Kane, J. L. Henderson, C. Gulbrandsen, K. Ballintijn, Maarten Alver, Burak Han Busza, Wit The centrality dependence of the midrapidity charged-particle multiplicity density (|η|<1) is presented for Au+Au and Cu+Cu collisions at RHIC over a broad range of collision energies. The multiplicity measured in the Cu+Cu system is found to be similar to that measured in the Au+Au system, for an equivalent Npart, with the observed factorization in energy and centrality still persistent in the smaller Cu+Cu system. The extent of the similarities observed for bulk particle production is tested by a comparative analysis of the inclusive transverse momentum distributions for Au+Au and Cu+Cu collisions near midrapidity. It is found that, within the uncertainties of the data, the ratio of yields between the various energies for both Au+Au and Cu+Cu systems are similar and constant with centrality, both in the bulk yields and as a function of pT, up to at least 4 GeV/c. The effects of multiple nucleon collisions that strongly increase with centrality and energy appear to only play a minor role in bulk and intermediate transverse momentum particle production. Országos Tudományos Kutatási Alapprogramok (Hungarian OTKA Grant No. F 049823) National Science Council of the Republic of China (Contract No. NSC 89-2112-M-008-024) Polish Ministry of Science and Higher Education (Grant No. N N202 282234 (2008–2010) National Science Foundation (Grant Nos. 9603486, 0072204, and 0245011) United States Department of Energy (Grants nos. DE-AC02-98CH10886, DE-FG02-93ER40802, DE-FG02- 94ER40818, DE-FG02-94ER40865, DE-FG02-99ER41099, and DE-AC02-06CH11357) 2010-05-19T18:54:20Z 2010-05-19T18:54:20Z 2009-08 2008-08 Article http://purl.org/eprint/type/JournalArticle 0556-2813 http://hdl.handle.net/1721.1/54811 PHOBOS Collaboration et al. “Scaling properties in bulk and pT-dependent particle production near midrapidity in relativistic heavy ion collisions.” Physical Review C 80.1 (2009): 011901. © 2009 American Physical Society. https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0002-4918-5128 en_US http://dx.doi.org/10.1103/PhysRevC.80.011901 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 | Wyslouch, Boleslaw Wenger, Edward Allen Veres, Gabor Verdier, Robin Vaurynovich, Siarhei S. Stephans, George S. F. Reed, C. Kulinich, Piotr Kane, J. L. Henderson, C. Gulbrandsen, K. Ballintijn, Maarten Alver, Burak Han Busza, Wit van Nieuwenhuizen, Gerrit J Roland, Gunther M Roland, Christof E Loizides, Constantinos Li, W. Scaling properties in bulk and p[subscript T]-dependent particle production near midrapidity in relativistic heavy ion collisions |
| title | Scaling properties in bulk and p[subscript T]-dependent particle production near midrapidity in relativistic heavy ion collisions |
| title_full | Scaling properties in bulk and p[subscript T]-dependent particle production near midrapidity in relativistic heavy ion collisions |
| title_fullStr | Scaling properties in bulk and p[subscript T]-dependent particle production near midrapidity in relativistic heavy ion collisions |
| title_full_unstemmed | Scaling properties in bulk and p[subscript T]-dependent particle production near midrapidity in relativistic heavy ion collisions |
| title_short | Scaling properties in bulk and p[subscript T]-dependent particle production near midrapidity in relativistic heavy ion collisions |
| title_sort | scaling properties in bulk and p subscript t dependent particle production near midrapidity in relativistic heavy ion collisions |
| url | http://hdl.handle.net/1721.1/54811 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0002-4918-5128 |
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