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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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Autor principal: Jia, J
Lenguaje:eng
Publicado: 2012
Materias:
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
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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