Decays of neutral pions: Electromagnetic transition form factor and radiative corrections
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10371583" target="_blank" >RIV/00216208:11320/17:10371583 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/epjconf/201713705006" target="_blank" >http://dx.doi.org/10.1051/epjconf/201713705006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/201713705006" target="_blank" >10.1051/epjconf/201713705006</a>
Alternative languages
Result language
angličtina
Original language name
Decays of neutral pions: Electromagnetic transition form factor and radiative corrections
Original language description
We briefly summarize experimental and theoretical results on the rare decay pi(0) -> e (+) e(-). The notorious 3.3 sigma discrepancy between the Standard Model prediction and the experimental value provided by KTeV collaboration is discussed in the view of a complete set of next- to- leading- order QED radiative corrections. We also present the Two- Hadron Saturation (THS) scenario for the PVV correlator and apply it to the decay under discussion. The discrepancy under discussion then reduces down to 1.8 sigma. Finally, we turn our attention the the Dalitz decay pi(0) -> e (+) e(-). We have recalculated the Mikaelian and Smith radiative corrections beyond the soft- photon approximation, i.e. over the whole range of the Dalitz plot and with no restrictions on the radiative photon. In contrast to the previous calculations, we also included the one- photon irreducible contribution at one- loop level. Our results can be also used for a further treatment of the processes with heavier particles in the final state.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/GA15-18080S" target="_blank" >GA15-18080S: Effective field theories: principles and phenomenology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
XIITH QUARK CONFINEMENT AND THE HADRON SPECTRUM
ISBN
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ISSN
2100-014X
e-ISSN
neuvedeno
Number of pages
8
Pages from-to
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Publisher name
E D P SCIENCES
Place of publication
CEDEX A
Event location
Thessaloniki
Event date
Aug 29, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000404126100058