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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. © 2019 The Author

Registro:

Documento: Artículo
Título:Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector
Autor:Aaboud, M. et al.
Este artículo contiene 2915 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2915 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2019
Volumen:789
Página de inicio:444
Página de fin:471
DOI: http://dx.doi.org/10.1016/j.physletb.2018.11.065
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:http://digital.bl.fcen.uba.ar/collection/paper/document/paper_03702693_v789_n_p444_Aaboud

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Citas:

---------- APA ----------
(2019) . Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 789, 444-471.
http://dx.doi.org/10.1016/j.physletb.2018.11.065
---------- CHICAGO ----------
Aaboud, M. "Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 789 (2019) : 444-471.
http://dx.doi.org/10.1016/j.physletb.2018.11.065
---------- MLA ----------
Aaboud, M. "Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 789, 2019, pp. 444-471.
http://dx.doi.org/10.1016/j.physletb.2018.11.065
---------- VANCOUVER ----------
Aaboud, M. Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2019;789:444-471.
http://dx.doi.org/10.1016/j.physletb.2018.11.065