Measurement of away-side broadening with self-subtraction of flow in Au+Au collisions at √sNN=200 GeV

• Verfasst von: Adam, Jaroslav [VerfasserIn]
• Verfasst von: Deppner, Ingo Martin [VerfasserIn]
• Verfasst von: Herrmann, Norbert [VerfasserIn]
• Verfasst von: Weidenkaff, Philipp [VerfasserIn]
• Titel: Measurement of away-side broadening with self-subtraction of flow in Au+Au collisions at √sNN=200 GeV
• Verf.angabe: J. Adam, , I.M. Deppner, N. Herrmann, P.C. Weidenkaff [und 359 weitere]
• E-Jahr: 2020
• Jahr: Oktober 2020
• Umfang: ? S.
• Fussnoten: Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt ; Gesehen am 27.10.2020
• Titel Quelle: Enthalten in: Chinese physics / C
• Ort Quelle: Bristol [u.a.] : IOP Publ., 2008
• Jahr Quelle: 2020
• Band/Heft Quelle: 44(2020,10) Artikel-Nummer 104001, ? Seiten
• ISSN Quelle: 2058-6132
• DOI: doi:10.1088/1674-1137/ab97a9
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1736640798

Abstract

High transverse momentum ( ) particle production is suppressed owing to the parton (jet) energy loss in the hot dense medium created in relativistic heavy-ion collisions. Redistribution of energy at low-to-modest has been difficult to measure, owing to large anisotropic backgrounds. We report a data-driven method for background evaluation and subtraction, exploiting the away-side pseudorapidity gaps, to measure the jetlike correlation shape in Au+Au collisions at GeV in the STAR experiment. The correlation shapes, for trigger particles and various associated particle ranges within , are consistent with Gaussians, and their widths increase with centrality. The results indicate jet broadening in the medium created in central heavy-ion collisions.