Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{nn}}$=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 with the ATLAS detector, using charged particles with p_T > 0.5 GeV and |\eta|<2.5. The shape of the v_n distributions is consistent with Gaussian fluctuations i...

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Autor principal: Jia, Jiangyong
Lenguaje:eng
Publicado: 2012
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysa.2013.02.039
http://cds.cern.ch/record/1479079
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author Jia, Jiangyong
author_facet Jia, Jiangyong
author_sort Jia, Jiangyong
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 with the ATLAS detector, using charged particles with p_T > 0.5 GeV and |\eta|<2.5. The shape of the v_n distributions is consistent with Gaussian fluctuations in central collisions for v_2 and over the measured centrality range for v_3 and v_4. When these distributions are rescaled to have the same <v_n>, the resulting shapes are nearly the same for p_T>1 GeV and 0.5<p_T<1 GeV. 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 v_2 data consistently over the full centrality range
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institution Organización Europea para la Investigación Nuclear
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spelling cern-14790792021-07-28T02:02:36Zdoi:10.1016/j.nuclphysa.2013.02.039http://cds.cern.ch/record/1479079engJia, JiangyongMeasurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{nn}}$=2.76 TeV with the ATLAS detectorNuclear Physics - ExperimentThe 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 with the ATLAS detector, using charged particles with p_T > 0.5 GeV and |\eta|<2.5. The shape of the v_n distributions is consistent with Gaussian fluctuations in central collisions for v_2 and over the measured centrality range for v_3 and v_4. When these distributions are rescaled to have the same <v_n>, the resulting shapes are nearly the same for p_T>1 GeV and 0.5<p_T<1 GeV. 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 v_2 data consistently over the full centrality rangeThe event-by-event distributions of harmonic flow coefficients v_n for n=2 - 4 are measured in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76TeV, using charged particles with p_T>0.5GeV and |@h|<2.5. The shape of the v_n distributions is consistent with Gaussian fluctuations in central collisions for v_2 and over the measured centrality range for v_3 and v_4. When these distributions are rescaled to the same <v_n>, the resulting shapes are similar for p_T>1GeV and 0.5<p_T<1GeV. The shape of the eccentricity distributions from Glauber and the MC-KLN models fail to describe the shape of the v_n distributions over the full centrality range.The event-by-event distributions of harmonic flow coefficients vn for n=2 – 4 are measured in Pb–Pb collisions at sNN=2.76TeV , using charged particles with pT>0.5GeV and |η|<2.5 . The shape of the vn distributions is consistent with Gaussian fluctuations in central collisions for v2 and over the measured centrality range for v3 and v4 . When these distributions are rescaled to the same 〈vn〉 , the resulting shapes are similar for pT>1GeV and 0.5<pT<1GeV . The shape of the eccentricity distributions from Glauber and the MC-KLN models fail to describe the shape of the vn distributions over the full centrality range.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 with the ATLAS detector, using charged particles with p_T > 0.5 GeV and |\eta|<2.5. The shape of the v_n distributions is consistent with Gaussian fluctuations in central collisions for v_2 and over the measured centrality range for v_3 and v_4. When these distributions are rescaled to have the same <v_n>, the resulting shapes are nearly the same for p_T>1 GeV and 0.5<p_T<1 GeV. 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 v_2 data consistently over the full centrality rangearXiv:1209.4232oai:cds.cern.ch:14790792012-09-20
spellingShingle Nuclear Physics - Experiment
Jia, Jiangyong
Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{nn}}$=2.76 TeV with the ATLAS detector
title Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{nn}}$=2.76 TeV with the ATLAS detector
title_full Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{nn}}$=2.76 TeV with the ATLAS detector
title_fullStr Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{nn}}$=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 $\sqrt{s_{nn}}$=2.76 TeV with the ATLAS detector
title_short Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{nn}}$=2.76 TeV with the ATLAS detector
title_sort measurement of the distributions of event-by-event flow harmonics in pb-pb collisions at $\sqrt{s_{nn}}$=2.76 tev with the atlas detector
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1016/j.nuclphysa.2013.02.039
http://cds.cern.ch/record/1479079
work_keys_str_mv AT jiajiangyong measurementofthedistributionsofeventbyeventflowharmonicsinpbpbcollisionsatsqrtsnn276tevwiththeatlasdetector

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