Rare decay pi(0) -> e(+)e(-): on corrections beyond the leading order

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10287995" target="_blank" >RIV/00216208:11320/14:10287995 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1140/epjc/s10052-014-3010-4" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-014-3010-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-014-3010-4" target="_blank" >10.1140/epjc/s10052-014-3010-4</a>

Result language

angličtina

Original language name

Rare decay pi(0) -> e(+)e(-): on corrections beyond the leading order

Original language description

The preceding experimental and theoretical results on the rare decay pi(0) -> e(+)e(-) are briefly summarized. Already computed two-loop QED corrections are reviewed and the bremsstrahlung contribution beyond the soft-photon approximation is analyticallycalculated. The possible further contribution of QCD loop corrections is estimated using the leading logarithm approximation. 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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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BF - Elementary particle theory and high energy physics

OECD FORD branch

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Project

<a href="/en/project/LH14035" target="_blank" >LH14035: Scattering amplitudes in effective field theories</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Physical Journal C

ISSN

1434-6044

e-ISSN

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Volume of the periodical

74

Issue of the periodical within the volume

8

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

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UT code for WoS article

000340823800001

EID of the result in the Scopus database

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