Observation of D[superscript 0] Meson Nuclear Modifications in Au + Au Collisions at √s[subscript NN] = 200 GeV
We report the first measurement of charmed-hadron (D[superscript 0]) production via the hadronic decay channel (D[superscript 0] → K[superscript −] + π[superscript +]) in Au + Au collisions at √s[subscript NN] =200 GeV with the STAR experiment. The charm production cross section per nucleon-nucleon...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/90904 https://orcid.org/0000-0002-0816-200X |
| _version_ | 1826195278531657728 |
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| author | Stevens, Justin van Nieuwenhuizen, Gerrit J |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science Stevens, Justin van Nieuwenhuizen, Gerrit J |
| author_sort | Stevens, Justin |
| collection | MIT |
| description | We report the first measurement of charmed-hadron (D[superscript 0]) production via the hadronic decay channel (D[superscript 0] → K[superscript −] + π[superscript +]) in Au + Au collisions at √s[subscript NN] =200 GeV with the STAR experiment. The charm production cross section per nucleon-nucleon collision at midrapidity scales with the number of binary collisions, N[subscript bin], from p + p to central Au + Au collisions. The D[superscript 0] meson yields in central Au + Au collisions are strongly suppressed compared to those in p + p scaled by N[subscript bin], for transverse momenta p[subscript T] > 3 GeV/c, demonstrating significant energy loss of charm quarks in the hot and dense medium. An enhancement at intermediate p[subscript T] is also observed. Model calculations including strong charm-medium interactions and coalescence hadronization describe our measurements. |
| first_indexed | 2024-09-23T10:10:12Z |
| format | Article |
| id | mit-1721.1/90904 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:10:12Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/909042023-02-26T08:14:13Z Observation of D[superscript 0] Meson Nuclear Modifications in Au + Au Collisions at √s[subscript NN] = 200 GeV Stevens, Justin van Nieuwenhuizen, Gerrit J Massachusetts Institute of Technology. Laboratory for Nuclear Science Stevens, Justin van Nieuwenhuizen, Gerrit Jan We report the first measurement of charmed-hadron (D[superscript 0]) production via the hadronic decay channel (D[superscript 0] → K[superscript −] + π[superscript +]) in Au + Au collisions at √s[subscript NN] =200 GeV with the STAR experiment. The charm production cross section per nucleon-nucleon collision at midrapidity scales with the number of binary collisions, N[subscript bin], from p + p to central Au + Au collisions. The D[superscript 0] meson yields in central Au + Au collisions are strongly suppressed compared to those in p + p scaled by N[subscript bin], for transverse momenta p[subscript T] > 3 GeV/c, demonstrating significant energy loss of charm quarks in the hot and dense medium. An enhancement at intermediate p[subscript T] is also observed. Model calculations including strong charm-medium interactions and coalescence hadronization describe our measurements. Brookhaven National Laboratory Lawrence Berkeley National Laboratory United States. Dept. of Energy. Office of Nuclear Physics United States. Dept. of Energy. Office of High Energy Physics United States. Dept. of Energy. Office of Science National Science Foundation (U.S.) 2014-10-10T18:24:24Z 2014-10-10T18:24:24Z 2014-09 2014-04 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/90904 Adamczyk, L., J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, et al. “Observation of D[superscript 0] Meson Nuclear Modifications in Au + Au Collisions at √s[subscript NN] = 200 GeV.” Physical Review Letters 113, no. 14 (September 2014). © 2014 American Physical Society https://orcid.org/0000-0002-0816-200X en_US http://dx.doi.org/10.1103/PhysRevLett.113.142301 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 American Physical Society |
| spellingShingle | Stevens, Justin van Nieuwenhuizen, Gerrit J Observation of D[superscript 0] Meson Nuclear Modifications in Au + Au Collisions at √s[subscript NN] = 200 GeV |
| title | Observation of D[superscript 0] Meson Nuclear Modifications in Au + Au Collisions at √s[subscript NN] = 200 GeV |
| title_full | Observation of D[superscript 0] Meson Nuclear Modifications in Au + Au Collisions at √s[subscript NN] = 200 GeV |
| title_fullStr | Observation of D[superscript 0] Meson Nuclear Modifications in Au + Au Collisions at √s[subscript NN] = 200 GeV |
| title_full_unstemmed | Observation of D[superscript 0] Meson Nuclear Modifications in Au + Au Collisions at √s[subscript NN] = 200 GeV |
| title_short | Observation of D[superscript 0] Meson Nuclear Modifications in Au + Au Collisions at √s[subscript NN] = 200 GeV |
| title_sort | observation of d superscript 0 meson nuclear modifications in au au collisions at √s subscript nn 200 gev |
| url | http://hdl.handle.net/1721.1/90904 https://orcid.org/0000-0002-0816-200X |
| work_keys_str_mv | AT stevensjustin observationofdsuperscript0mesonnuclearmodificationsinauaucollisionsatssubscriptnn200gev AT vannieuwenhuizengerritj observationofdsuperscript0mesonnuclearmodificationsinauaucollisionsatssubscriptnn200gev |