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Article: Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector
Title | Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector |
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Authors | |
Issue Date | 2019 |
Publisher | Elsevier: SCOAP3. The Journal's web site is located at http://www.elsevier.com/locate/physletb |
Citation | Physics Letters B, 2019, v. 789, p. 444-471 How to Cite? |
Abstract | Correlations of two flow harmonics v n and v m via three- and four-particle cumulants are measured in 13 TeV pp, 5.02 TeV p+Pb, and 2.76 TeV peripheral Pb+Pb collisions with the ATLAS detector at the LHC. The goal is to understand the multi-particle nature of the long-range collective phenomenon in these collision systems. The large non-flow background from dijet production present in the standard cumulant method is suppressed using a method of subevent cumulants involving two, three and four subevents separated in pseudorapidity. The results show a negative correlation between v 2 and v 3 and a positive correlation between v 2 and v 4 for all collision systems and over the full multiplicity range. However, the magnitudes of the correlations are found to depend on the event multiplicity, the choice of transverse momentum range and collision system. The relative correlation strength, obtained by normalisation of the cumulants with the 〈v n 2 〉 from a two-particle correlation analysis, is similar in the three collision systems and depends weakly on the event multiplicity and transverse momentum. These results based on the subevent methods provide strong evidence of a similar long-range multi-particle collectivity in pp, p+Pb and peripheral Pb+Pb collisions. |
Persistent Identifier | http://hdl.handle.net/10722/267443 |
ISSN | 2023 Impact Factor: 4.3 2023 SCImago Journal Rankings: 1.593 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | ATLAS Collaboration | - |
dc.contributor.author | Lo, CY | - |
dc.contributor.author | Orlando, N | - |
dc.contributor.author | Paredes Hernandez, DK | - |
dc.contributor.author | Tu, Y | - |
dc.contributor.author | Pizzimento, L | - |
dc.date.accessioned | 2019-02-18T09:02:09Z | - |
dc.date.available | 2019-02-18T09:02:09Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Physics Letters B, 2019, v. 789, p. 444-471 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/10722/267443 | - |
dc.description.abstract | Correlations of two flow harmonics v n and v m via three- and four-particle cumulants are measured in 13 TeV pp, 5.02 TeV p+Pb, and 2.76 TeV peripheral Pb+Pb collisions with the ATLAS detector at the LHC. The goal is to understand the multi-particle nature of the long-range collective phenomenon in these collision systems. The large non-flow background from dijet production present in the standard cumulant method is suppressed using a method of subevent cumulants involving two, three and four subevents separated in pseudorapidity. The results show a negative correlation between v 2 and v 3 and a positive correlation between v 2 and v 4 for all collision systems and over the full multiplicity range. However, the magnitudes of the correlations are found to depend on the event multiplicity, the choice of transverse momentum range and collision system. The relative correlation strength, obtained by normalisation of the cumulants with the 〈v n 2 〉 from a two-particle correlation analysis, is similar in the three collision systems and depends weakly on the event multiplicity and transverse momentum. These results based on the subevent methods provide strong evidence of a similar long-range multi-particle collectivity in pp, p+Pb and peripheral Pb+Pb collisions. | - |
dc.language | eng | - |
dc.publisher | Elsevier: SCOAP3. The Journal's web site is located at http://www.elsevier.com/locate/physletb | - |
dc.relation.ispartof | Physics Letters B | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector | - |
dc.type | Article | - |
dc.identifier.email | Orlando, N: norlando@hku.hk | - |
dc.identifier.email | Paredes Hernandez, DK: dparedes@hku.hk | - |
dc.identifier.email | Tu, Y: yanjuntu@hku.hk | - |
dc.identifier.authority | Tu, Y=rp01971 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1016/j.physletb.2018.11.065 | - |
dc.identifier.scopus | eid_2-s2.0-85059588295 | - |
dc.identifier.hkuros | 296987 | - |
dc.identifier.volume | 789 | - |
dc.identifier.spage | 444 | - |
dc.identifier.epage | 471 | - |
dc.identifier.isi | WOS:000457165400062 | - |
dc.publisher.place | Netherlands | - |
dc.identifier.issnl | 0370-2693 | - |