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Production of e(+)e(-) pairs accompanied by nuclear dissociation in ultraperipheral heavy-ion collisions

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F04%3A00105646" target="_blank" >RIV/61389005:_____/04:00105646 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Production of e(+)e(-) pairs accompanied by nuclear dissociation in ultraperipheral heavy-ion collisions

  • Original language description

    We present data on e(+)e(-) pair production accompanied by nuclear breakup in ultraperipheral gold-gold collisions at a center of mass energy of 200 GeV per nucleon pair. The nuclear breakup requirement selects events at small impact parameters, where higher-order diagrams for pair production should be enhanced. We compare the data with two calculations: one based on the equivalent photon approximation, and the other using lowest-order quantum electrodynamics (QED). The data distributions agree with both calculations, except that the pair transverse momentum spectrum disagrees with the equivalent photon approach. We set limits on higher-order contributions to the cross section

  • Czech name

    Produkce e+e- párů sdružená s jadernou disociací v ultraperiferálních srážkách těžkých iontů

  • Czech description

    Uvádíme data o produkci párů e+e- sdružených s jaderným rozpadem v ultraperiferálních srážkách Au-Au s cms energií 200 GeV nukleonový pár. Jaderný rozpad vybírá případy s malým impaktním parametrem, kde je zesílen příspěvek diagramů vyššího řádu pro produkci párů. Data jsou srovnána s výpočty

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BF - Elementary particle theory and high energy physics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/KSK1048102" target="_blank" >KSK1048102: Fundamental physical laws of microworld and macroworld, the behaviour of matter and radiation</a><br>

  • Continuities

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

Others

  • Publication year

    2004

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Physical Review

  • ISSN

    0556-2813

  • e-ISSN

  • Volume of the periodical

    70

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    1

  • Pages from-to

    031902

  • UT code for WoS article

  • EID of the result in the Scopus database