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    NázovFormation of deuterons by coalescence
    Podnázovconsequences for deuteron number fluctuations
    Aut.údajeZuzana Fecková ... [et al.]
    Autor Fecková Zuzana 1988- (30%)
    Spoluautori Steinheimer Jan (20%)
    Tomášik Boris 1972- (30%) UMBFP06 - Katedra fyziky
    Bleicher Marcus (20%)
    Zdroj.dok. Physical Review C. Vol. 93, no. 5 (2016), pp. 1-5. - Maryland : American Physical Society, 2016
    Kľúč.slová fyzika - physics   molekulárna dynamika   entropia   molecular dynamics  
    Jazyk dok.angličtina
    KrajinaSpojené štáty
    Systematika 53
    AnotáciaTwo scenarios for cluster production have long been discussed in the literature: (i) direct emission of the clusters from a (grand-canonical) thermal source or (ii) subsequent formation of the clusters by coalescence of single nucleons. While both approaches have been successfully applied in the past it has not yet been clarified which of the two mechanisms dominates the cluster production. We propose to use recently developed event-by-event techniques to study particle multiplicity fluctuations on nuclear clusters and employ this analysis to the deuteron number fluctuations to disentangle the two production mechanisms. We argue that for a grand-canonical cluster formation, the cluster fluctuations will follow Poisson distribution, while for the coalescence scenario, the fluctuations will strongly deviate from the Poisson expectation. We estimate the effect to be 10% for the variance and up to a factor of 5 for the kurtosis of the deuteron number multiplicity distribution. Our prediction can be tested in the beam energy scan program at the BNL Relativistic Heavy Ion Collider as well as experiments at the GSI Facility for Antiproton and Ion Research and the Nuclotron-based Ion Collider Facility.
    Kategória publikačnej činnosti ADC
    Číslo archívnej kópie37328
    Katal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Báza dátxpca - PUBLIKAČNÁ ČINNOSŤ
    OdkazyPERIODIKÁ-Súborný záznam periodika
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