Identified Hadron Compositions in p+p and Au+Au Collisions at High Transverse Momenta at √sNN=200 GeV
We report transverse momentum (pT≤15 GeV/c) spectra of π[superscript ±], K[superscript ±], p, p̅ , K[subscript S][superscript 0], and ρ[superscript 0] at midrapidity in p+p and Au+Au collisions at √sNN=200 GeV. Perturbative QCD calculations are consistent with π[superscript ±] spectra in p+p colli...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/78678 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 Hays-Wehle, James Prewitt Leight, William Axel Milner, Richard G. Redwine, Robert P Seele, J. Steadman, Stephen G. Surrow, Bernd van Nieuwenhuizen, G. Walker, M. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Hays-Wehle, James Prewitt Leight, William Axel Milner, Richard G. Redwine, Robert P Seele, J. Steadman, Stephen G. Surrow, Bernd van Nieuwenhuizen, G. Walker, M. |
| author_sort | Balewski, Jan T. |
| collection | MIT |
| description | We report transverse momentum (pT≤15 GeV/c) spectra of π[superscript ±], K[superscript ±], p, p̅ , K[subscript S][superscript 0], and ρ[superscript 0] at midrapidity in p+p and Au+Au collisions at √sNN=200 GeV. Perturbative QCD calculations are consistent with π[superscript ±] spectra in p+p collisions but do not reproduce K and p(p̅ ) spectra. The observed decreasing antiparticle-to-particle ratios with increasing p[subscript T] provide experimental evidence for varying quark and gluon jet contributions to high-p[subscript T] hadron yields. The relative hadron abundances in Au+Au at p[subscript T]≳8 GeV/c are measured to be similar to the p+p results, despite the expected Casimir effect for parton energy loss. |
| first_indexed | 2024-09-23T14:10:36Z |
| format | Article |
| id | mit-1721.1/78678 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:10:36Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/786782022-09-28T19:02:30Z Identified Hadron Compositions in p+p and Au+Au Collisions at High Transverse Momenta at √sNN=200 GeV Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Hays-Wehle, James Prewitt Leight, William Axel Milner, Richard G. Redwine, Robert P Seele, J. Steadman, Stephen G. Surrow, Bernd van Nieuwenhuizen, G. Walker, M. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Hays-Wehle, James Prewitt Leight, William Axel Milner, Richard G. Redwine, Robert P Seele, J. Steadman, Stephen G. Surrow, Bernd van Nieuwenhuizen, G. Walker, M. We report transverse momentum (pT≤15 GeV/c) spectra of π[superscript ±], K[superscript ±], p, p̅ , K[subscript S][superscript 0], and ρ[superscript 0] at midrapidity in p+p and Au+Au collisions at √sNN=200 GeV. Perturbative QCD calculations are consistent with π[superscript ±] spectra in p+p collisions but do not reproduce K and p(p̅ ) spectra. The observed decreasing antiparticle-to-particle ratios with increasing p[subscript T] provide experimental evidence for varying quark and gluon jet contributions to high-p[subscript T] hadron yields. The relative hadron abundances in Au+Au at p[subscript T]≳8 GeV/c are measured to be similar to the p+p results, despite the expected Casimir effect for parton energy loss. United States. Dept. of Energy. Office of Science National Science Foundation (U.S.) Alfred P. Sloan Foundation 2013-05-02T20:54:00Z 2013-05-02T20:54:00Z 2012-02 2011-10 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/78678 Agakishiev, G., M. M. Aggarwal, Z. Ahammed, et al. Identified Hadron Compositions in P+p and Au+Au Collisions at High Transverse Momenta at sqrt[s_{NN}]=200 GeV. Physical Review Letters 108(7). 2012. © 2012 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.108.072302 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 Hays-Wehle, James Prewitt Leight, William Axel Milner, Richard G. Redwine, Robert P Seele, J. Steadman, Stephen G. Surrow, Bernd van Nieuwenhuizen, G. Walker, M. Identified Hadron Compositions in p+p and Au+Au Collisions at High Transverse Momenta at √sNN=200 GeV |
| title | Identified Hadron Compositions in p+p and Au+Au Collisions at High Transverse Momenta at √sNN=200 GeV |
| title_full | Identified Hadron Compositions in p+p and Au+Au Collisions at High Transverse Momenta at √sNN=200 GeV |
| title_fullStr | Identified Hadron Compositions in p+p and Au+Au Collisions at High Transverse Momenta at √sNN=200 GeV |
| title_full_unstemmed | Identified Hadron Compositions in p+p and Au+Au Collisions at High Transverse Momenta at √sNN=200 GeV |
| title_short | Identified Hadron Compositions in p+p and Au+Au Collisions at High Transverse Momenta at √sNN=200 GeV |
| title_sort | identified hadron compositions in p p and au au collisions at high transverse momenta at √snn 200 gev |
| url | http://hdl.handle.net/1721.1/78678 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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