Determination of the m[u] and m[d] quark masses from eta to 3 pi decay

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10106077" target="_blank" >RIV/00216208:11320/11:10106077 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.nuclphysbps.2011.10.074" target="_blank" >http://dx.doi.org/10.1016/j.nuclphysbps.2011.10.074</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nuclphysbps.2011.10.074" target="_blank" >10.1016/j.nuclphysbps.2011.10.074</a>

Result language
angličtina
Original language name
Determination of the m[u] and m[d] quark masses from eta to 3 pi decay
Original language description
For a precise determination of the m_u and m_d quark masses, it is useful to combine isospin-symmetric results of lattice or sum-rules QCD techniques with some isospin-breaking study performed in chiral perturbation theory (ChPT). The most promising process for the later is eta to 3pi decay. However, this process is affected by large chiral corrections and there are observed discrepancies between the values of Dalitz plot parameters stemming from the standard ChPT computation of its amplitude and thoseexperimentally measured. We describe here the method based on analytic dispersive representation which attempts to obtain the information on the masses by taking this discrepancy into account independently of its exact origin. Together with the results of this analysis we present a review of some other constraints on the light quark masses and conclude with values of the masses compatible with them.
Czech name
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Czech description
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Type
J<sub>x</sub> - 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/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)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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