Fluctuations of charge separation perpendicular to the event plane and local parity violation in √S[subscript NN] = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider
Previous experimental results based on data (∼15 × 10[superscript 6] events) collected by the STAR detector at the BNL Relativistic Heavy Ion Collider suggest event-by-event charge-separation fluctuations perpendicular to the event plane in noncentral heavy-ion collisions. Here we present the correl...
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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/1721.1/87747 https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0002-0816-200X |
| _version_ | 1826206820882972672 |
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| author | Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Hays-Wehle, James Prewitt Leight, William Axel Stevens, Justin van Nieuwenhuizen, Gerrit Jan Walker, M. |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Hays-Wehle, James Prewitt Leight, William Axel Stevens, Justin van Nieuwenhuizen, Gerrit Jan Walker, M. |
| author_sort | Balewski, Jan T. |
| collection | MIT |
| description | Previous experimental results based on data (∼15 × 10[superscript 6] events) collected by the STAR detector at the BNL Relativistic Heavy Ion Collider suggest event-by-event charge-separation fluctuations perpendicular to the event plane in noncentral heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from a high-statistics 200-GeV Au + Au collisions data set (57 × 10[superscript 6] events) collected by the STAR experiment. We explicitly count units of charge separation from which we find clear evidence for more charge-separation fluctuations perpendicular than parallel to the event plane. We also employ a modified correlator to study the possible P-even background in same- and opposite-charge correlations, and find that the P-even background may largely be explained by momentum conservation and collective motion. |
| first_indexed | 2024-09-23T13:39:05Z |
| format | Article |
| id | mit-1721.1/87747 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:39:05Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/877472022-10-01T16:15:39Z Fluctuations of charge separation perpendicular to the event plane and local parity violation in √S[subscript NN] = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Hays-Wehle, James Prewitt Leight, William Axel Stevens, Justin van Nieuwenhuizen, Gerrit Jan Walker, M. Massachusetts Institute of Technology. Laboratory for Nuclear Science Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Hays-Wehle, James Prewitt Leight, William Axel Stevens, Justin van Nieuwenhuizen, Gerrit Jan Walker, M. Previous experimental results based on data (∼15 × 10[superscript 6] events) collected by the STAR detector at the BNL Relativistic Heavy Ion Collider suggest event-by-event charge-separation fluctuations perpendicular to the event plane in noncentral heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from a high-statistics 200-GeV Au + Au collisions data set (57 × 10[superscript 6] events) collected by the STAR experiment. We explicitly count units of charge separation from which we find clear evidence for more charge-separation fluctuations perpendicular than parallel to the event plane. We also employ a modified correlator to study the possible P-even background in same- and opposite-charge correlations, and find that the P-even background may largely be explained by momentum conservation and collective motion. Brookhaven National Laboratory Lawrence Berkeley National Laboratory Open Science Grid United States. Dept. of Energy. Office of Science National Science Foundation (U.S.) Alfred P. Sloan Foundation 2014-06-12T16:47:32Z 2014-06-12T16:47:32Z 2013-12 2013-08 Article http://purl.org/eprint/type/JournalArticle 0556-2813 1089-490X http://hdl.handle.net/1721.1/87747 Adamczyk, L., J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, et al. “Fluctuations of charge separation perpendicular to the event plane and local parity violation in √S[subscript NN] = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider.” Phys. Rev. C 88, no. 6 (December 2013). © 2013 American Physical Society https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0002-0816-200X en_US http://dx.doi.org/10.1103/PhysRevC.88.064911 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 American Physical Society |
| spellingShingle | Balewski, Jan T. Betancourt, Michael Joseph Corliss, Ross Hays-Wehle, James Prewitt Leight, William Axel Stevens, Justin van Nieuwenhuizen, Gerrit Jan Walker, M. Fluctuations of charge separation perpendicular to the event plane and local parity violation in √S[subscript NN] = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider |
| title | Fluctuations of charge separation perpendicular to the event plane and local parity violation in √S[subscript NN] = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider |
| title_full | Fluctuations of charge separation perpendicular to the event plane and local parity violation in √S[subscript NN] = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider |
| title_fullStr | Fluctuations of charge separation perpendicular to the event plane and local parity violation in √S[subscript NN] = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider |
| title_full_unstemmed | Fluctuations of charge separation perpendicular to the event plane and local parity violation in √S[subscript NN] = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider |
| title_short | Fluctuations of charge separation perpendicular to the event plane and local parity violation in √S[subscript NN] = 200 GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider |
| title_sort | fluctuations of charge separation perpendicular to the event plane and local parity violation in √s subscript nn 200 gev au au collisions at the bnl relativistic heavy ion collider |
| url | http://hdl.handle.net/1721.1/87747 https://orcid.org/0000-0002-5515-4563 https://orcid.org/0000-0002-0816-200X |
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