@article{c46665d3803c4b22b6989140750e1a32,
title = "Disentangling Sources of Momentum Fluctuations in (Formula presented) and (Formula presented) Collisions with the ATLAS Detector",
abstract = "High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [(Formula presented)]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of (Formula presented) in (Formula presented) and (Formula presented) collisions at (Formula presented) and 5.44 TeV, respectively, using the ATLAS detector at the LHC. All observables show distinct features in ultracentral collisions, which are explained by a suppression of the geometrical component as the overlap area reaches its maximum. These results demonstrate a new technique to separate geometrical and intrinsic fluctuations, providing constraints on initial conditions and properties of the quark-gluon plasma, such as the speed of sound.",
author = "Filmer, {E. K.} and Grant, {C. M.} and Green, {M. J.} and P. Jackson and Kong, {A. X.Y.} and Pandya, {H. D.} and Ruggeri, {T. A.} and S. Saha and Ting, {E. X.L.} and White, {M. J.} and Gingrich, {D. M.} and Lindon, {J. H.} and N. Nishu and Pinfold, {J. L.} and O. Cakir and Canbay, {A. C.} and Yildiz, {H. Duran} and S. Kuday and {Turk Cakir}, I. and S. Sultansoy and {Adam Bourdarios}, C. and O. Arnaez and N. Berger and L. Boudet and N. Brahimi and Castillo, {F. L.} and T. Cavaliere and F. Costanza and J. Couthures and M. Delmastro and {Di Ciaccio}, L. and C. Appelt and Lutz, {M. S.} and O. Kuprash and {Pascual Dominguez}, L. and D. Reikher and Biswal, {J. P.} and H. Abramowicz and L. Barak and U. Barron and G. Bella and Y. Benhammou and E. Etzion and Frid, {Y. Y.} and R. Nayak and G. Ninio and {Salvador Salas}, A. and A. Soffer and Tamir, {N. M.} and D. Vannicola and T. Hryn{\textquoteright}ova and I. Koletsou and J. Lev{\^e}que and Lewis, {D. J.} and {Lorenzo Martinez}, N. and E. Sauvan and Z. Wu and G. Bernardi and M. Bomben and A. Li and T. Li and G. Marchiori and Y. Afik and Seabra, {L. F.Oleiro} and H. Abreu and E. Kajomovitz and Y. Rozen and S. Tarem and L. Moleri and K. Nakkalil and S. Chekanov and Hopkins, {W. H.} and J. Hoya and D. Kim and Luongo, {N. A.} and Citron, {Z. H.}",
note = "Publisher Copyright: {\textcopyright} 2024 CERN, for the ATLAS Collaboration.",
year = "2024",
month = dec,
day = "20",
doi = "https://doi.org/10.1103/PhysRevLett.133.252301",
language = "الإنجليزيّة",
volume = "133",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Institute of Physics",
number = "25",
}