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Sigma(0) production in proton nucleus collisions near threshold

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00491106" target="_blank" >RIV/61389005:_____/18:00491106 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.physletb.2018.02.043" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2018.02.043</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.physletb.2018.02.043" target="_blank" >10.1016/j.physletb.2018.02.043</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Sigma(0) production in proton nucleus collisions near threshold

  • Original language description

    The production of Sigma(0) baryons in the nuclear reaction p (3.5 GeV) + Nb (corresponding to root sNN = 3.18 GeV) is studied with the detector set-up HADES at GSI, Darmstadt. Sigma(0)s were identified via the decay Sigma 0 -> Lambda gamma with subsequent decays Lambda -> p pi(-) in coincidence with a e(+)e(-) pair from either external (gamma -> e(+)e(-)) or internal (Dalitz decay gamma* -> e(+)e(-)) gamma conversions. The differential Sigma(0) cross section integrated over the detector acceptance, i.e. the rapidity interval 0.5 < y < 1.1, has been extracted as Delta sigma(Sigma 0) = 2.3 +/- (0.2)(stat) +/- ((+0.6)(-0.6))(sys) +/- (0.2)(norm) mB, yielding the inclusive production cross section in full phase space sigma(total)(Sigma 0) = 5.8 +/- (0.5)(stat) +/- ((+1.4)(-1.4))(sys) +/- (0.6)(norm) +/- (1.7)(extrapol) mb by averaging over different extrapolation methods. The Lambda(all)/Sigma(0) ratio within the HADES acceptance is equal to 2.3 +/- (0.2)(stat) +/- ((+0.6)(-0.6))(sys). The obtained rapidity and momentum distributions are compared to transport model calculations. The Sigma(0) yield agrees with the statistical model of particle production in nuclear reactions.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10304 - Nuclear physics

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physics Letters. B

  • ISSN

    0370-2693

  • e-ISSN

  • Volume of the periodical

    781

  • Issue of the periodical within the volume

    6

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    6

  • Pages from-to

    735-740

  • UT code for WoS article

    000435653100097

  • EID of the result in the Scopus database

    2-s2.0-85047563376