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Analytic continuation and perturbative expansions in QCD

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    0100491 - FZU-D 20040347 RIV DE eng J - Journal Article
    Caprini, I. - Fischer, Jan
    Analytic continuation and perturbative expansions in QCD.
    [Analytické pokračování a poruchové rozvoje v QCD.]
    European Physical Journal C. Roč. 24, - (2002), s. 127-135. ISSN 1434-6044
    R&D Projects: GA MPO RP-4210/69
    Institutional research plan: CEZ:AV0Z1010920
    Keywords : perturbative expansion * quantum chromodynamics * infrared ambiguity * essential singularities
    Subject RIV: BF - Elementary Particles and High Energy Physics
    Impact factor: 6.162, year: 2002

    We propose a novel, non-power series replacing the standard expansion in powers of the renormalized coupling constant a . The functions Wn(a) have branch points and essential singularities at the origin a = 0 of the complex a plane

    Místo standardních rozvojů v mocninách renormalizované vazbové konstanty a navrhujeme nové, ne-mocninné rozvoje ve funkcích Wn(a) . Ty mají větvicí body a podstatné singularity v počátku komplexní roviny veličiny a
    Permanent Link: http://hdl.handle.net/11104/0007992