The CMS collaboration measured second-order single-particle anisotropy, v(2), using 2-, 4-, 6- and 8-particle correlations as well as the Lee-Yang Zero method in pPb and PbPb collisions. This result shows that the correlations found in the small and highly asymmetric pPb collision system are long-range and have a many-particle origin. Deeper insight into the nature of these correlations is achieved by studying the factorization breaking effect which appears trough a PT-dependent event plane angle, caused by the initial-state fluctuations. The effect is largest for the most central PbPb collisions (up to 20%), while it is on the level of few percent for peripheral PbPb and high-multiplicity pPb events. Hydrodynamics models which include a PT-dependent event plane angle semi-quantitatively describe the data and suggest that the effect is mainly determined by the initial-state conditions.
TY - CONF
AU - Milošević, Jovan
AU - CMS Collaboration
PY - 2016
UR - http://vinar.vin.bg.ac.rs/handle/123456789/7141
AB - The CMS collaboration measured second-order single-particle anisotropy, v(2), using 2-, 4-, 6- and 8-particle correlations as well as the Lee-Yang Zero method in pPb and PbPb collisions. This result shows that the correlations found in the small and highly asymmetric pPb collision system are long-range and have a many-particle origin. Deeper insight into the nature of these correlations is achieved by studying the factorization breaking effect which appears trough a PT-dependent event plane angle, caused by the initial-state fluctuations. The effect is largest for the most central PbPb collisions (up to 20%), while it is on the level of few percent for peripheral PbPb and high-multiplicity pPb events. Hydrodynamics models which include a PT-dependent event plane angle semi-quantitatively describe the data and suggest that the effect is mainly determined by the initial-state conditions.
C3 - Nuclear and Particle Physics Proceedings
T1 - Soft probes of the QGP: Pb-Pb and p-Pb CMS results
VL - 273
SP - 1565
EP - 1570
DO - 10.1016/j.nuclphysbps.2015.09.253
ER -
@conference{
author = "Milošević, Jovan and CMS Collaboration",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/7141",
abstract = "The CMS collaboration measured second-order single-particle anisotropy, v(2), using 2-, 4-, 6- and 8-particle correlations as well as the Lee-Yang Zero method in pPb and PbPb collisions. This result shows that the correlations found in the small and highly asymmetric pPb collision system are long-range and have a many-particle origin. Deeper insight into the nature of these correlations is achieved by studying the factorization breaking effect which appears trough a PT-dependent event plane angle, caused by the initial-state fluctuations. The effect is largest for the most central PbPb collisions (up to 20%), while it is on the level of few percent for peripheral PbPb and high-multiplicity pPb events. Hydrodynamics models which include a PT-dependent event plane angle semi-quantitatively describe the data and suggest that the effect is mainly determined by the initial-state conditions.",
journal = "Nuclear and Particle Physics Proceedings",
title = "Soft probes of the QGP: Pb-Pb and p-Pb CMS results",
volume = "273",
pages = "1565-1570",
doi = "10.1016/j.nuclphysbps.2015.09.253"
}
Milošević J, CMS Collaboration. Soft probes of the QGP: Pb-Pb and p-Pb CMS results. Nuclear and Particle Physics Proceedings. 2016;273:1565-1570
Milošević, J.,& CMS Collaboration (2016). Soft probes of the QGP: Pb-Pb and p-Pb CMS results.
Nuclear and Particle Physics Proceedings, 273, 1565-1570.
https://doi.org/10.1016/j.nuclphysbps.2015.09.253
Milošević Jovan, CMS Collaboration, "Soft probes of the QGP: Pb-Pb and p-Pb CMS results" 273 (2016):1565-1570,
https://doi.org/10.1016/j.nuclphysbps.2015.09.253 .
