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Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV with the ATLAS detector
The event-by-event distributions of harmonic flow coefficients $v_n$ for $n$=2--4 are measured in Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV, using charged particles with $p_T> 0.5$ GeV and $|\eta|<2.5$. The shape of the $v_n$ distributions is consistent with Gaussian fluctuation in central...
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Lenguaje: | eng |
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2012
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Acceso en línea: | http://cds.cern.ch/record/1478945 |
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author | Jia, J |
author_facet | Jia, J |
author_sort | Jia, J |
collection | CERN |
description | The event-by-event distributions of harmonic flow coefficients $v_n$ for $n$=2--4 are measured in Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV, using charged particles with $p_T> 0.5$ GeV and $|\eta|<2.5$. The shape of the $v_n$ distributions is consistent with Gaussian fluctuation in central collisions for $v_2$ and over the full centrality range for $v_3$ and $v_4$; When these distributions are rescaled to the same $\langle v_n\rangle$, the resulting shapes are found to be nearly independent of $p_T$. The $v_n$ distributions are compared with the eccentricity distributions from two initial geometry models: Glauber and the MC-KLN model; Both fail to describe the experimental data consistently across the full centrality range. |
id | cern-1478945 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2012 |
record_format | invenio |
spelling | cern-14789452019-09-30T06:29:59Zhttp://cds.cern.ch/record/1478945engJia, JMeasurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV with the ATLAS detectorDetectors and Experimental TechniquesThe event-by-event distributions of harmonic flow coefficients $v_n$ for $n$=2--4 are measured in Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV, using charged particles with $p_T> 0.5$ GeV and $|\eta|<2.5$. The shape of the $v_n$ distributions is consistent with Gaussian fluctuation in central collisions for $v_2$ and over the full centrality range for $v_3$ and $v_4$; When these distributions are rescaled to the same $\langle v_n\rangle$, the resulting shapes are found to be nearly independent of $p_T$. The $v_n$ distributions are compared with the eccentricity distributions from two initial geometry models: Glauber and the MC-KLN model; Both fail to describe the experimental data consistently across the full centrality range.ATL-PHYS-PROC-2012-194oai:cds.cern.ch:14789452012-09-19 |
spellingShingle | Detectors and Experimental Techniques Jia, J Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV with the ATLAS detector |
title | Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV with the ATLAS detector |
title_full | Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV with the ATLAS detector |
title_fullStr | Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV with the ATLAS detector |
title_full_unstemmed | Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV with the ATLAS detector |
title_short | Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV with the ATLAS detector |
title_sort | measurement of the distributions of event-by-event flow harmonics in pb-pb collisions at $\sqrt{s_{\mathrm{nn}}}$=2.76 tev with the atlas detector |
topic | Detectors and Experimental Techniques |
url | http://cds.cern.ch/record/1478945 |
work_keys_str_mv | AT jiaj measurementofthedistributionsofeventbyeventflowharmonicsinpbpbcollisionsatsqrtsmathrmnn276tevwiththeatlasdetector |