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Radiative correctio...
Radiative corrections to the η(') Dalitz decays
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- Husek, Tomas (author)
- 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, England
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- Kampf, Karol (author)
- Charles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 8, Czech Republic
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- Novotny, Jiri (author)
- Charles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, V Holesovickach 2, Prague 8, Czech Republic
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- Leupold, Stefan (author)
- Uppsala universitet,Kärnfysik
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(creator_code:org_t)
- 2018
- 2018
- English.
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In: Physical Review D. - 2470-0010 .- 2470-0029. ; 97:9
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Abstract
Subject headings
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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.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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