About: High statistics measurement of K-e4 decay properties.

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About: High statistics measurement of K-e4 decay properties. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We report experimental details and results of a new measurement of the decay K+-->pi(+)pi(-)e(+)nu(e)(K-e4). A sample of more than 400,000 K-e4 events with low background has been collected by Experiment 865 at the Brookhaven Alternate Gradient Synchrotron. From these data, the branching ratio (4.11+/-0.01+/-0.11)x10(-5) and the pipi invariant mass dependence of the form factors F, G, and H of the weak hadronic current as well as the phase shift difference delta(0)(0)-delta(1)(1) for pipi scattering were extracted. Using constraints based on analyticity and chiral symmetry, a new value with considerably improved accuracy for the s-wave pipi scattering length a(0)(0) has been obtained also: a(0)(0)=0.216+/-0.013 (stat)+/-0.002 (syst)+/-0.002 (theor). We report experimental details and results of a new measurement of the decay K+-->pi(+)pi(-)e(+)nu(e)(K-e4). A sample of more than 400,000 K-e4 events with low background has been collected by Experiment 865 at the Brookhaven Alternate Gradient Synchrotron. From these data, the branching ratio (4.11+/-0.01+/-0.11)x10(-5) and the pipi invariant mass dependence of the form factors F, G, and H of the weak hadronic current as well as the phase shift difference delta(0)(0)-delta(1)(1) for pipi scattering were extracted. Using constraints based on analyticity and chiral symmetry, a new value with considerably improved accuracy for the s-wave pipi scattering length a(0)(0) has been obtained also: a(0)(0)=0.216+/-0.013 (stat)+/-0.002 (syst)+/-0.002 (theor). (en)
Title	High statistics measurement of K-e4 decay properties. High statistics measurement of K-e4 decay properties. (en)
skos:prefLabel	High statistics measurement of K-e4 decay properties. High statistics measurement of K-e4 decay properties. (en)
skos:notation	RIV/47813059:19240/03:20000011!RIV/2004/GA0/192404/N
http://linked.open.../vavai/riv/strany	072004
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA202/01/1592)
http://linked.open...iv/cisloPeriodika	7
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Lichard, Peter
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	Slezská univerzita v Opavě / Filozoficko-přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	608811
http://linked.open...ai/riv/idVysledku	RIV/47813059:19240/03:20000011
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	pi-pi- scattering; chiral perturbation-theory; K-L4 form-factors; low energy; particle physics; one-loop; 2 loops; constants; quark mass (en)
http://linked.open.../riv/klicoveSlovo	particle physics chiral perturbation-theory low energy constants 2 loops K-L4 form-factors one-loop pi-pi- scattering quark mass
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[9A76107B2A37]
http://linked.open...i/riv/nazevZdroje	Physical Review D
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	28 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Many-body initial states in dilepton production
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	67
http://linked.open...iv/tvurceVysledku	Lichard, Peter
issn	0556-2821
number of pages	1 (xsd:int)
http://localhost/t...ganizacniJednotka	19240

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