Comment on "Determination of light quark masses from eta -> 3 pi(0)"

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10127629" target="_blank" >RIV/00216208:11320/12:10127629 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevD.86.118501" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.86.118501</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.86.118501" target="_blank" >10.1103/PhysRevD.86.118501</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comment on "Determination of light quark masses from eta -> 3 pi(0)"

Popis výsledku v původním jazyce

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: 10.1

Název v anglickém jazyce

Comment on "Determination of light quark masses from eta -> 3 pi(0)"

Popis výsledku anglicky

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: 10.1

Druh

O - Ostatní výsledky

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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