Higher Moments of Net Proton Multiplicity Distributions at RHIC
We report the first measurements of the kurtosis (κ [kappa]), skewness (S), and variance (σ [sigma] [superscript 2]) of net-proton multiplicity (N [subscript p]-N [subscript p̅] ) distributions at midrapidity for Au+Au collisions at √sNN=19.6, 62.4, and 200 GeV corresponding to baryon chemical poten...
| Main Authors: | , , , , , , , , , , , , , , |
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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/1721.1/60667 https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0001-5839-707X https://orcid.org/0000-0002-0031-1963 https://orcid.org/0000-0002-9107-6312 |
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| author | Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd van Nieuwenhuizen, Gerrit J Walker, Matthew H Hoffman, Alan Michael Milner, Richard G Redwine, Robert P |
| author2 | Bates Linear Accelerator Center |
| author_facet | Bates Linear Accelerator Center Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd van Nieuwenhuizen, Gerrit J Walker, Matthew H Hoffman, Alan Michael Milner, Richard G Redwine, Robert P |
| author_sort | Balewski, Jan T. |
| collection | MIT |
| description | We report the first measurements of the kurtosis (κ [kappa]), skewness (S), and variance (σ [sigma] [superscript 2]) of net-proton multiplicity (N [subscript p]-N [subscript p̅] ) distributions at midrapidity for Au+Au collisions at √sNN=19.6, 62.4, and 200 GeV corresponding to baryon chemical potentials (μ [mu] B) between 200 and 20 MeV. Our measurements of the products κ [kappa]σ [sigma][superscript 2] and Sσ [sigma], which can be related to theoretical calculations sensitive to baryon number susceptibilities and long-range correlations, are constant as functions of collision centrality. We compare these products with results from lattice QCD and various models without a critical point and study the √sNN dependence of κ [kappa] σ [sigma] [superscript 2]. From the measurements at the three beam energies, we find no evidence for a critical point in the QCD phase diagram for μ [mu] [subscript B] below 200 MeV. |
| first_indexed | 2024-09-23T10:48:39Z |
| format | Article |
| id | mit-1721.1/60667 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:48:39Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/606672023-02-26T04:27:32Z Higher Moments of Net Proton Multiplicity Distributions at RHIC Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd van Nieuwenhuizen, Gerrit J Walker, Matthew H Hoffman, Alan Michael Milner, Richard G Redwine, Robert P Bates Linear Accelerator Center Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Milner, Richard G. Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Hoffman, A. M. Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Milner, Richard G. Redwine, Robert P. Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd Nieuwenhuizen, Gerrit van Walker, Matthew H. We report the first measurements of the kurtosis (κ [kappa]), skewness (S), and variance (σ [sigma] [superscript 2]) of net-proton multiplicity (N [subscript p]-N [subscript p̅] ) distributions at midrapidity for Au+Au collisions at √sNN=19.6, 62.4, and 200 GeV corresponding to baryon chemical potentials (μ [mu] B) between 200 and 20 MeV. Our measurements of the products κ [kappa]σ [sigma][superscript 2] and Sσ [sigma], which can be related to theoretical calculations sensitive to baryon number susceptibilities and long-range correlations, are constant as functions of collision centrality. We compare these products with results from lattice QCD and various models without a critical point and study the √sNN dependence of κ [kappa] σ [sigma] [superscript 2]. From the measurements at the three beam energies, we find no evidence for a critical point in the QCD phase diagram for μ [mu] [subscript B] below 200 MeV. United States. Dept. of Energy. Office of High Energy Physics. United States. Dept. of Energy. Office of Nuclear Physics National Science Foundation (U.S.) Alfred P. Sloan Foundation Deutsche Forschungsgemeinschaft (DFG) Institut national de physique nucléaire et de physique des particules RA of France RPL of France EMN of France Science and Technology Facilities Council (Great Britain) Engineering and Physical Sciences Research Council Fundação de Amparo à Pesquisa do Estado de São Paulo Russian Ministry of Science and Technology China. Ministry of Energy China. Ministry of Science and Technology. Chinese Academy of Sciences National Natural Science Foundation (China) GA of the Czech Republic IRP of the Czech Republic FOM of the Netherlands India. Dept. of Atomic Energy India. Dept. of Science and Technology Council of Scientific & Industrial Research (India) Polish State Committee for Scientific Research Korean Science and Engineering Foundation 2011-01-19T19:12:56Z 2011-01-19T19:12:56Z 2010-07 2010-04 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/60667 Aggarwal, M. et al. “Higher Moments of Net Proton Multiplicity Distributions at RHIC.” Physical Review Letters 105.2 (2010): n. pag. © 2010 The American Physical Society https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0001-5839-707X https://orcid.org/0000-0002-0031-1963 https://orcid.org/0000-0002-9107-6312 en_US http://dx.doi.org/10.1103/PhysRevLett.105.022302 Physical review letters 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 | Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Cameron Hays-Wehle, James Prewitt Jones, Christopher LaDon Kocoloski, Adam Philip Leight, William Axel Sakuma, Tai Seele, Joseph Patrick Surrow, Bernd van Nieuwenhuizen, Gerrit J Walker, Matthew H Hoffman, Alan Michael Milner, Richard G Redwine, Robert P Higher Moments of Net Proton Multiplicity Distributions at RHIC |
| title | Higher Moments of Net Proton Multiplicity Distributions at RHIC |
| title_full | Higher Moments of Net Proton Multiplicity Distributions at RHIC |
| title_fullStr | Higher Moments of Net Proton Multiplicity Distributions at RHIC |
| title_full_unstemmed | Higher Moments of Net Proton Multiplicity Distributions at RHIC |
| title_short | Higher Moments of Net Proton Multiplicity Distributions at RHIC |
| title_sort | higher moments of net proton multiplicity distributions at rhic |
| url | http://hdl.handle.net/1721.1/60667 https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0001-5839-707X https://orcid.org/0000-0002-0031-1963 https://orcid.org/0000-0002-9107-6312 |
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