Observation of Associated Near-Side and Away-Side Long-Range Correlations in √[subscript NN]=5.02 TeV Proton-Lead Collisions with the ATLAS Detector
Two-particle correlations in relative azimuthal angle (Δϕ) and pseudorapidity (Δη) are measured in √s[subscript NN]=5.02 TeV p+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using approximately 1 μb[superscript -1] of data as a function of transverse momentum (p[...
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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/1721.1/79918 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826217114549092352 |
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| author | Taylor, Frank E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | Two-particle correlations in relative azimuthal angle (Δϕ) and pseudorapidity (Δη) are measured in √s[subscript NN]=5.02 TeV p+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using approximately 1 μb[superscript -1] of data as a function of transverse momentum (p[subscript T]) and the transverse energy (ΣE[Pb over T]) summed over 3.1<η<4.9 in the direction of the Pb beam. The correlation function, constructed from charged particles, exhibits a long-range (2<|Δη|<5) “near-side” (Δϕ∼0) correlation that grows rapidly with increasing ΣE[Pb over T]. A long-range “away-side” (Δϕ∼π) correlation, obtained by subtracting the expected contributions from recoiling dijets and other sources estimated using events with small ΣE[Pb over T], is found to match the near-side correlation in magnitude, shape (in Δη and Δϕ) and ΣE[Pb over T] dependence. The resultant Δϕ correlation is approximately symmetric about π/2, and is consistent with a dominant cos2Δϕ modulation for all ΣE[Pb over T] ranges and particle p[subscript T]. |
| first_indexed | 2024-09-23T16:58:15Z |
| format | Article |
| id | mit-1721.1/79918 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:58:15Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/799182022-10-03T09:29:38Z Observation of Associated Near-Side and Away-Side Long-Range Correlations in √[subscript NN]=5.02 TeV Proton-Lead Collisions with the ATLAS Detector Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. Two-particle correlations in relative azimuthal angle (Δϕ) and pseudorapidity (Δη) are measured in √s[subscript NN]=5.02 TeV p+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using approximately 1 μb[superscript -1] of data as a function of transverse momentum (p[subscript T]) and the transverse energy (ΣE[Pb over T]) summed over 3.1<η<4.9 in the direction of the Pb beam. The correlation function, constructed from charged particles, exhibits a long-range (2<|Δη|<5) “near-side” (Δϕ∼0) correlation that grows rapidly with increasing ΣE[Pb over T]. A long-range “away-side” (Δϕ∼π) correlation, obtained by subtracting the expected contributions from recoiling dijets and other sources estimated using events with small ΣE[Pb over T], is found to match the near-side correlation in magnitude, shape (in Δη and Δϕ) and ΣE[Pb over T] dependence. The resultant Δϕ correlation is approximately symmetric about π/2, and is consistent with a dominant cos2Δϕ modulation for all ΣE[Pb over T] ranges and particle p[subscript T]. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2013-08-22T13:57:49Z 2013-08-22T13:57:49Z 2013-05 2012-12 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/79918 Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, et al. “Observation of Associated Near-Side and Away-Side Long-Range Correlations in sqrt[s_{NN}]=5.02 TeV Proton-Lead Collisions with the ATLAS Detector.” Physical Review Letters 110, no. 18 (May 2013). © 2013 CERN https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevLett.110.182302 Physical Review Letters Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf American Physical Society APS |
| spellingShingle | Taylor, Frank E. Observation of Associated Near-Side and Away-Side Long-Range Correlations in √[subscript NN]=5.02 TeV Proton-Lead Collisions with the ATLAS Detector |
| title | Observation of Associated Near-Side and Away-Side Long-Range Correlations in √[subscript NN]=5.02 TeV Proton-Lead Collisions with the ATLAS Detector |
| title_full | Observation of Associated Near-Side and Away-Side Long-Range Correlations in √[subscript NN]=5.02 TeV Proton-Lead Collisions with the ATLAS Detector |
| title_fullStr | Observation of Associated Near-Side and Away-Side Long-Range Correlations in √[subscript NN]=5.02 TeV Proton-Lead Collisions with the ATLAS Detector |
| title_full_unstemmed | Observation of Associated Near-Side and Away-Side Long-Range Correlations in √[subscript NN]=5.02 TeV Proton-Lead Collisions with the ATLAS Detector |
| title_short | Observation of Associated Near-Side and Away-Side Long-Range Correlations in √[subscript NN]=5.02 TeV Proton-Lead Collisions with the ATLAS Detector |
| title_sort | observation of associated near side and away side long range correlations in √ subscript nn 5 02 tev proton lead collisions with the atlas detector |
| url | http://hdl.handle.net/1721.1/79918 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke observationofassociatednearsideandawaysidelongrangecorrelationsinsubscriptnn502tevprotonleadcollisionswiththeatlasdetector |