Long-range and short-range dihadron angular correlations in central PbPb collisions at psNN = 2:76 TeV
First measurements of dihadron correlations for charged particles are presented for central PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76TeV over a broad range in relative pseudorapidity (Δν) and the full range of relative azimuthal angle (Δø). The data were collected with the C...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2011
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| _version_ | 1797087416098488320 |
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| author | Chatrchyan, S Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V Hammer, J Hansel, S Hoch, M Hörmann, N Hrubec, J Jeitler, M Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schöfbeck, R |
| author_facet | Chatrchyan, S Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V Hammer, J Hansel, S Hoch, M Hörmann, N Hrubec, J Jeitler, M Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schöfbeck, R |
| author_sort | Chatrchyan, S |
| collection | OXFORD |
| description | First measurements of dihadron correlations for charged particles are presented for central PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76TeV over a broad range in relative pseudorapidity (Δν) and the full range of relative azimuthal angle (Δø). The data were collected with the CMS detector, at the LHC. A broadening of the away-side (Δø y≈ π) azimuthal correlation is observed at all Δν, as compared to the measurements in pp collisions. Furthermore, long-range dihadron correlations in Δν are observed for particles with similar ø values. This phenomenon, also known as the \ridge", persists up to at least jΔνj = 4. For particles with transverse momenta (pT) of 2-4 GeV/c, the ridge is found to be most prominent when these particles are correlated with particles of pT = 2-6 GeV/c, and to be much reduced when paired with particles of pT = 10-12 GeV/c. Copyright CERN. |
| first_indexed | 2024-03-07T02:35:24Z |
| format | Journal article |
| id | oxford-uuid:a89d523b-990b-4901-ac92-64569fd334ad |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:35:24Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:a89d523b-990b-4901-ac92-64569fd334ad2022-03-27T03:02:50ZLong-range and short-range dihadron angular correlations in central PbPb collisions at psNN = 2:76 TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a89d523b-990b-4901-ac92-64569fd334adEnglishSymplectic Elements at Oxford2011Chatrchyan, SKhachatryan, VSirunyan, ATumasyan, AAdam, WBergauer, TDragicevic, MErö, JFabjan, CFriedl, MFrühwirth, RGhete, VHammer, JHansel, SHoch, MHörmann, NHrubec, JJeitler, MKiesenhofer, WKrammer, MLiko, DMikulec, IPernicka, MRohringer, HSchöfbeck, RFirst measurements of dihadron correlations for charged particles are presented for central PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76TeV over a broad range in relative pseudorapidity (Δν) and the full range of relative azimuthal angle (Δø). The data were collected with the CMS detector, at the LHC. A broadening of the away-side (Δø y≈ π) azimuthal correlation is observed at all Δν, as compared to the measurements in pp collisions. Furthermore, long-range dihadron correlations in Δν are observed for particles with similar ø values. This phenomenon, also known as the \ridge", persists up to at least jΔνj = 4. For particles with transverse momenta (pT) of 2-4 GeV/c, the ridge is found to be most prominent when these particles are correlated with particles of pT = 2-6 GeV/c, and to be much reduced when paired with particles of pT = 10-12 GeV/c. Copyright CERN. |
| spellingShingle | Chatrchyan, S Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V Hammer, J Hansel, S Hoch, M Hörmann, N Hrubec, J Jeitler, M Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schöfbeck, R Long-range and short-range dihadron angular correlations in central PbPb collisions at psNN = 2:76 TeV |
| title | Long-range and short-range dihadron angular correlations in central PbPb collisions at psNN = 2:76 TeV |
| title_full | Long-range and short-range dihadron angular correlations in central PbPb collisions at psNN = 2:76 TeV |
| title_fullStr | Long-range and short-range dihadron angular correlations in central PbPb collisions at psNN = 2:76 TeV |
| title_full_unstemmed | Long-range and short-range dihadron angular correlations in central PbPb collisions at psNN = 2:76 TeV |
| title_short | Long-range and short-range dihadron angular correlations in central PbPb collisions at psNN = 2:76 TeV |
| title_sort | long range and short range dihadron angular correlations in central pbpb collisions at psnn 2 76 tev |
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