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

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About: Determination of the m[u] and m[d] quark masses from eta to 3 pi decay Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1016/j.nuclphysbps.2011.10.074
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 those experimentally 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. 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 those experimentally 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. (en)
Title	Determination of the m[u] and m[d] quark masses from eta to 3 pi decay Determination of the m[u] and m[d] quark masses from eta to 3 pi decay (en)
skos:prefLabel	Determination of the m[u] and m[d] quark masses from eta to 3 pi decay Determination of the m[u] and m[d] quark masses from eta to 3 pi decay (en)
skos:notation	RIV/00216208:11320/11:10106077!RIV12-MSM-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LC527), Z(MSM0021620859)
http://linked.open...iv/cisloPeriodika	Oct - Nov
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Zdráhal, Martin
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	193908
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10106077
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	dispersion relations; chiral perturbation theory; isospin breaking; eta to 3pi decay; quark masses (en)
http://linked.open.../riv/klicoveSlovo	isospin breaking dispersion relations eta to 3pi decay quark masses chiral perturbation theory
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[B3DD4927E687]
http://linked.open...i/riv/nazevZdroje	Nuclear Physics B - Proceedings Supplements
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Center for Particle Physics
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	219-220
http://linked.open...iv/tvurceVysledku	Zdráhal, Martin
http://linked.open...n/vavai/riv/zamer	Výzkum vlastností jader a subjaderných částic a jejich interakcí
issn	0920-5632
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.nuclphysbps.2011.10.074
http://localhost/t...ganizacniJednotka	11320
is http://linked.open...avai/riv/vysledek of	Determination of the m[u] and m[d] quark masses from eta to 3 pi decay Determination of the m[u] and m[d] quark masses from eta to 3 pi decay

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