About: Analytical dispersive construction of eta to 3 pi amplitude: First order in isospin breaking

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About: Analytical dispersive construction of eta to 3 pi amplitude: First order in isospin breaking Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://prd.aps.org/abstract/PRD/v84/i11/e114015
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. 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. (en)
Title	Analytical dispersive construction of eta to 3 pi amplitude: First order in isospin breaking Analytical dispersive construction of eta to 3 pi amplitude: First order in isospin breaking (en)
skos:prefLabel	Analytical dispersive construction of eta to 3 pi amplitude: First order in isospin breaking Analytical dispersive construction of eta to 3 pi amplitude: First order in isospin breaking (en)
skos:notation	RIV/00216208:11320/11:10105321!RIV12-MSM-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LC527), Z(MSM0021620859)
http://linked.open...iv/cisloPeriodika	114015
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Kampf, Karol Zdráhal, Martin Novotný, Jiří
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	185869
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10105321
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	isospin breaking; eta decays; dispersive relations (en)
http://linked.open.../riv/klicoveSlovo	dispersive relations eta decays isospin breaking
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[85356B04B1E5]
http://linked.open...i/riv/nazevZdroje	Physical Review D - Particles, Fields, Gravitation and Cosmology
http://linked.open...in/vavai/riv/obor	BE
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Center for Particle Physics
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	84
http://linked.open...iv/tvurceVysledku	Kampf, Karol Knecht, Marc Novotný, Jiří Zdráhal, Martin
http://linked.open...ain/vavai/riv/wos	000298131100008
http://linked.open...n/vavai/riv/zamer	Výzkum vlastností jader a subjaderných částic a jejich interakcí
issn	1550-7998
number of pages	32 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevD.84.114015
http://localhost/t...ganizacniJednotka	11320

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