About: Comment on %22Determination of light quark masses from eta -> 3 pi(0)%22

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1103/PhysRevD.86.118501
Description	In the commented paper it is claimed that there is provided a model-independent determination of the quantity B-0(m(d) - m(u)) based on the analysis of the decay of eta to three neutral pions that takes the strong-interaction correction as an unknown parameter. In the following we show that the two constraints presented there as independent equations are in fact two approximations of a single constraint connecting together B-0(m(d) - m(u)) with the strong-interaction correction to the eta -> 3 pi(0) decay amplitude. Thus, without some additional information on the latter (such as its correct value at least at one kinematic point) it does not lead to any determination of B-0(m(d) - m(u)), and the numerical values presented there should not be taken seriously. We have also found that the numerical result for the studied quantity obtained in the commented paper is just an accidental number stemming from some numerical errors that had occurred in the computations presented there. DOI: 10.1103/PhysRevD.86.118501 In the commented paper it is claimed that there is provided a model-independent determination of the quantity B-0(m(d) - m(u)) based on the analysis of the decay of eta to three neutral pions that takes the strong-interaction correction as an unknown parameter. In the following we show that the two constraints presented there as independent equations are in fact two approximations of a single constraint connecting together B-0(m(d) - m(u)) with the strong-interaction correction to the eta -> 3 pi(0) decay amplitude. Thus, without some additional information on the latter (such as its correct value at least at one kinematic point) it does not lead to any determination of B-0(m(d) - m(u)), and the numerical values presented there should not be taken seriously. We have also found that the numerical result for the studied quantity obtained in the commented paper is just an accidental number stemming from some numerical errors that had occurred in the computations presented there. DOI: 10.1103/PhysRevD.86.118501 (en)
Title	Comment on %22Determination of light quark masses from eta -> 3 pi(0)%22 Comment on %22Determination of light quark masses from eta -> 3 pi(0)%22 (en)
skos:prefLabel	Comment on %22Determination of light quark masses from eta -> 3 pi(0)%22 Comment on %22Determination of light quark masses from eta -> 3 pi(0)%22 (en)
skos:notation	RIV/00216208:11320/12:10127629!RIV13-MSM-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	I Z
http://linked.open...avai/riv/aktivity	I, Z(MSM0021620859)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Zdráhal, Martin
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
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	127725
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/12:10127629
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	pi0; eta; masses; quark; light; Determination (en)
http://linked.open.../riv/klicoveSlovo	Determination quark light eta masses pi0
http://linked.open...ontrolniKodProRIV	[F446F04CD662]
http://linked.open...in/vavai/riv/obor	BG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Zdráhal, Martin
http://linked.open...n/vavai/riv/zamer	Výzkum vlastností jader a subjaderných částic a jejich interakcí
http://bibframe.org/vocab/doi	10.1103/PhysRevD.86.118501
http://localhost/t...ganizacniJednotka	11320

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