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Nuclear Theory·nucl-th

Friday·April 1, 2016

4 papers—2 primary·2 cross-listed

All4Primary2Cross-lists2
  1. 03

    [Submitted on 31 Mar 2016] (cross-list from hep-ph)

    Thermal Model Description of Collisions of Small Nuclei

    H. Oeschler🇿🇦 · J. Cleymans🇫🇷 · B. Hippolyte🇩🇪 · K. Redlich🇺🇸 · N. Sharma🇮🇳

    The dependence of particle production on the size of the colliding nuclei is analysed in terms of the thermal model using the canonical ensemble. The concept of strangeness correlation in clusters of sub-volume is used to account for the suppression of strangeness. A systematic analysis is presented of the predictions of the thermal model for particle production in collisions of small nuclei. The pattern of the maxima of strange-particles-to-pion ratios as a function of beam energy is quite special, as they do not occur at the same beam energy and are sensitive to system size. In particular, the ratio shows a clear maximum even for small systems while the maximum in the K ratio is less pronounced

    Comments:
    8 pages, 4 figures
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1603.09553 [pdf]
    14 citations
  2. 04

    [Submitted on 31 Mar 2016] (cross-list from hep-ph)

    Influence of jets and decays of resonances on the triangular flow in ultrarelativistic heavy-ion collisions

    J. Crkovska🇫🇷 · J. Bielcik🇨🇿 · L. Bravina🇳🇴 · B.H. Brusheim Johansson🇳🇴 · E. Zabrodin🇷🇺 · G. Eyyubova🇷🇺 · V.L. Korotkikh🇷🇺 · I.P. Lokhtin🇷🇺 · L.V. Malinina🇷🇺 · S.V. Petrushanko🇷🇺 · A.M. Snigirev🇷🇺

    Triangular flow of identified and inclusive particles in Pb+Pb collisions at TeV is studied as a function of centrality and transverse momentum within the \textsc{hydjet++} model. The model enables one to investigate the influence of both hard processes and final-state interactions on the harmonics of particle anisotropic flow. Decays of resonances are found to increase the magnitude of the distributions at GeV/ and shift their maxima to higher transverse momenta. The -integrated triangular flow, however, becomes slightly weakened for all centralities studied. The resonance decays also modify the spectra towards the number-of-constituent-quark scaling fulfillment for the triangular flow, whereas jets are the main source of the scaling violation at the energies available at the CERN Large Hadron Collider (LHC). Comparison with the corresponding spectra of elliptic flow reveals that resonance decays and jets act in a similar manner on both and behavior. Obtained results are also confronted with the experimental data on differential triangular flow of identified hadrons, ratio and -integrated triangular flow of charged hadrons.

    Comments:
    revised version
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
    arXiv:
    1603.09621 [pdf]
    PRC(2017)·23 citations

Affiliations

first authorsco-authorsvia INSPIRE