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Radiative correctio...
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Husek, TomasCharles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 8, Czech Republic;Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
(author)
Radiative corrections to the η(') Dalitz decays
- Article/chapterEnglish2018
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2018
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electronicrdacarrier
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LIBRIS-ID:oai:DiVA.org:uu-357558
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-357558URI
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https://doi.org/10.1103/PhysRevD.97.096013DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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We provide the complete set of radiative corrections to the Dalitz decays eta(()'()) -> l(+)l(-)gamma beyond the softphoton approximation, i. e., over the whole range of the Dalitz plot and with no restrictions on the energy of a radiative photon. The corrections inevitably depend on the eta(()'()) -> gamma*gamma(*) transition form factors. For the singly virtual transition form factor appearing, e.g., in the bremsstrahlung correction, recent dispersive calculations are used. For the one-photon-irreducible contribution at the one-loop level (for the doubly virtual form factor), we use a vector-meson-dominance-inspired model while taking into account the eta-eta' mixing.
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Kampf, KarolCharles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 8, Czech Republic
(author)
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Novotny, JiriCharles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 8, Czech Republic
(author)
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Leupold, StefanUppsala universitet,Kärnfysik(Swepub:uu)stele192
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Charles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 8, Czech Republic;Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, EnglandCharles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 8, Czech Republic
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In:Physical Review D97:92470-00102470-0029
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