@article{9b306f65c776467aadc1cc5b6bd048dc,
title = "Measuring momentum-dependent flow fluctuations in heavy-ion collisions",
abstract = "In heavy-ion collisions, momentum-dependent pair correlations can be characterized by a principal component analysis (PCA), in which subleading modes are expected to reveal new information on flow fluctuations. However, we find that, as currently measured, these modes can be dominated by multiplicity fluctuations, which serve as an unwanted background. Here, we propose new PCA observables that are robust against multiplicity fluctuations and isolate novel sources of flow fluctuations, thus being suited to provide fresh insight into the initial stages of the system at small length scales.",
author = "M. Hippert and Chinellato, {D. D.} and M. Luzum and J. Noronha and {Nunes Da Silva}, T. and J. Takahashi",
note = "Funding Information: We are thankful to D. Teaney, A. Mazeliauskas, S. Mohapatra, P. Bo{\.z}ek, and Marcus Bleicher for fruitful discussions. This research was funded by FAPESP Grants No. 2016/13803-2 (D.D.C.), No. 2016/24029-6 (M.L.), No. 2017/05685-2 (all), No. 2018/01245-0 (T.N.dS.), and No. 2018/07833-1(M.H.). D.D.C., M.L., J.N., and J.T. thank CNPq for financial support. We also acknowledge computing time provided by the Research Computing Support Group at Rice University through agreement with the University of S{\~a}o Paulo. Publisher Copyright: {\textcopyright} 2020 American Physical Society.",
year = "2020",
month = mar,
doi = "10.1103/PhysRevC.101.034903",
language = "English (US)",
volume = "101",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "3",
}