Azimuthal Harmonics in Small and Large Collision Systems at RHIC Top Energies

0504605 - ÚJF 2020 RIV US eng J - Článek v odborném periodiku
Adam, J. - Adamczyk, L. - Adams, J. R. - Adkins, J. K. - Agakishiev, G. - Bielčík, J. - Bielčíková, Jana - Chaloupka, P. - Federič, Pavol - Federičová, P. - Harlenderová, A. - Holub, L. - Kramárik, L. - Kvapil, J. - Lidrych, J. - Matonoha, O. - Rusňák, Jan - Rusňáková, O. - Šimko, Miroslav - Šumbera, Michal - Vaněk, Jan … celkem 354 autorů
Azimuthal Harmonics in Small and Large Collision Systems at RHIC Top Energies.
Physical Review Letters. Roč. 122, č. 17 (2019), č. článku 172301. ISSN 0031-9007. E-ISSN 1079-7114
Grant CEP: GA MŠMT LTT18002
Institucionální podpora: RVO:61389005
Klíčová slova: STAR collaboration * elliptic flow * heavy ions collisions
Obor OECD: Nuclear physics
Impakt faktor: 8.385, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1103/PhysRevLett.122.172301

The first (v(1)(fluc)), second (v(2)), and third (v(3)) harmonic coefficients of the azimuthal particle distribution at midrapidity are extracted for charged hadrons and studied as a function of transverse momentum (P-T) and mean charged particle multiplicity density N-ch in U + U (root s(NN) = 193 GeV), Au + Au, Cu + Au, Cu + Cu, d + Au, and p + Au collisions at, root s(NN) = 200 GeV with the STAR detector. For the same N-ch , the v(1)(fluc) and v(3) coefficients are observed to be independent of the collision system, while v(2) exhibits such a scaling only when normalized by the initial-state eccentricity (epsilon(2)). The data also show that ln(v(2)/epsilon(2)) scales linearly with N-ch (-1/3). These measurements provide insight into initial-geometry fluctuations and the role of viscous hydrodynamic attenuation on v(n) from small to large collision systems.
Trvalý link: http://hdl.handle.net/11104/0296191