Corrections Beyond the Leading Order in pi(0) -> e(+)e(-) Process

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10333763" target="_blank" >RIV/00216208:11320/16:10333763 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.4938625" target="_blank" >http://dx.doi.org/10.1063/1.4938625</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4938625" target="_blank" >10.1063/1.4938625</a>

Result language
angličtina
Original language name
Corrections Beyond the Leading Order in pi(0) -> e(+)e(-) Process
Original language description
We briefly summarize experimental and theoretical results on the rare decay pi(0) -> e(+)e(-). Two-loop QED corrections are reviewed and the bremsstrahlung contribution beyond the soft-photon approximation is analytically calculated. Using the leading logarithm approximation, the possible contribution of QCD corrections is estimated. The complete result can be used to fit the value of the contact interaction coupling chi((r)) to the recent KTeV experiment, with the result chi((r))(M-rho) 4.5 +/- 1.0.
Czech name
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Czech description
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Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
XITH CONFERENCE ON QUARK CONFINEMENT AND HADRON SPECTRUM
ISBN
978-0-7354-1348-1
ISSN
0094-243X
e-ISSN
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Number of pages
7
Pages from-to
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Publisher name
AMER INST PHYSICS
Place of publication
MELVILLE
Event location
Saint Petersburg
Event date
Sep 8, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000371663500036

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