Počet záznamů: 1  

Pion-kaon femtoscopy and the lifetime of the hadronic phase in Pb-Pb collisions at root s(NN)=2.76 TeV

  1. 1.
    0540938 - ÚJF 2022 RIV NL eng J - Článek v odborném periodiku
    Acharya, S. - Adamová, Dagmar - Bielčík, J. - Bielčíková, Jana - Broz, M. - Contreras, J. G. - Herman, T. - Horák, D. - Isakov, Artem - Křížek, Filip - Křížková Gajdošová, K. - Kushpil, Svetlana - Lavička, R. - Mareš, Jiří A. - Petráček, V. - Šafařík, K. - Šumbera, Michal - Torres, S. R. - Trzeciak, B. A. - Závada, Petr … celkem 1028 autorů
    Pion-kaon femtoscopy and the lifetime of the hadronic phase in Pb-Pb collisions at root s(NN)=2.76 TeV.
    Physics Letters. B. Roč. 813, FEB (2021), č. článku 136030. ISSN 0370-2693. E-ISSN 1873-2445
    Grant CEP: GA MŠMT(CZ) LTT17018
    Výzkumná infrastruktura: CERN-CZ II - 90104
    Institucionální podpora: RVO:68378271 ; RVO:61389005
    Klíčová slova: ALICE collaboration * heavy ion experiments
    Obor OECD: Nuclear physics; Particles and field physics (FZU-D)
    Impakt faktor: 4.950, rok: 2021
    Způsob publikování: Open access
    https://doi.org/10.1016/j.physletb.2020.136030

    In this paper, the first femtoscopic analysis of pion-kaon correlations at the LHC is reported. The analysis was performed on the Pb-Pb collision data at root(S)(NN) = 2.76 TeV recorded with the ALICE detector. The non-identical particle correlations probe the spatio-temporal separation between sources of different particle species as well as the average source size of the emitting system. The sizes of the pion and kaon sources increase with centrality, and pions are emitted closer to the centre of the system and/or later than kaons. This is naturally expected in a system with strong radial flow and is qualitatively reproduced by hydrodynamic models. ALICE data on pion-kaon emission asymmetry are consistent with (3+1)-dimensional viscous hydrodynamics coupled to a statistical hadronisation model, resonance propagation, and decay code THERMINATOR 2 calculation, with an additional time delay between 1 and 2 fm/c for kaons. The delay can be interpreted as evidence for a significant hadronic rescattering phase in heavy-ion collisions at the LHC.
    Trvalý link: http://hdl.handle.net/11104/0318531

     
    Název souboruStaženoVelikostKomentářVerzePřístup
    0540938.pdf0875.2 KBOpen Access - CC licenceVydavatelský postprintpovolen
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.