Analytical dispersive construction of eta to 3 pi amplitude: First order in isospin breaking
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10105321" target="_blank" >RIV/00216208:11320/11:10105321 - isvavai.cz</a>
Result on the web
<a href="http://prd.aps.org/abstract/PRD/v84/i11/e114015" target="_blank" >http://prd.aps.org/abstract/PRD/v84/i11/e114015</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.84.114015" target="_blank" >10.1103/PhysRevD.84.114015</a>
Alternative languages
Result language
angličtina
Original language name
Analytical dispersive construction of eta to 3 pi amplitude: First order in isospin breaking
Original language description
Because of their small electromagnetic corrections, the isospin-breaking decays eta to 3 pi seem to be good candidates for extracting isospin-breaking parameters md-mu. This task is unfortunately complicated by large chiral corrections and the discrepancy between the experimentally measured values of the Dalitz parameters describing the energy dependence of the amplitudes of these decays and those predicted from chiral perturbation theory. We present two methods based on an analytic dispersive representation that use the information from the NNLO chiral result and the one from the measurement of the charged eta to 3 pi decay by KLOE together in a harmonized way in order to determine the value of the quark mass ratio R. Our final result is R= 37.7 +/- 2.2.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LC527" target="_blank" >LC527: Center for Particle Physics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN
1550-7998
e-ISSN
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Volume of the periodical
84
Issue of the periodical within the volume
114015
Country of publishing house
US - UNITED STATES
Number of pages
32
Pages from-to
1-32
UT code for WoS article
000298131100008
EID of the result in the Scopus database
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