A study of the semi-leptonic decays of K/sup +/ mesons

The form factors of the semi-leptonic decays K/sup +/ to pi /sup 0/e /sup +/ nu and K/sup +/ to pi /sup 0/ mu /sup +/ nu have been investigated using a sample of events detected in the CERN 1.1 m/sup 3 / heavy liquid bubble chamber. Analyses have been carried out using methods independent of any ass...

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Detalles Bibliográficos
Autores principales: Braun, H, Bertrand, D, Cornelssen, M, Csejthey-Barth, Monique, Cundy, Donald C, Erriquez, O, Lemonne, J, Martyn, H U, Natali, S, Pedersen, T I, Renton, P B, Romano, F, Vilain, P, Waldren, D
Lenguaje:eng
Publicado: 1975
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(75)90094-2
http://cds.cern.ch/record/873282
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author Braun, H
Bertrand, D
Cornelssen, M
Csejthey-Barth, Monique
Cundy, Donald C
Erriquez, O
Lemonne, J
Martyn, H U
Natali, S
Pedersen, T I
Renton, P B
Romano, F
Vilain, P
Waldren, D
author_facet Braun, H
Bertrand, D
Cornelssen, M
Csejthey-Barth, Monique
Cundy, Donald C
Erriquez, O
Lemonne, J
Martyn, H U
Natali, S
Pedersen, T I
Renton, P B
Romano, F
Vilain, P
Waldren, D
author_sort Braun, H
collection CERN
description The form factors of the semi-leptonic decays K/sup +/ to pi /sup 0/e /sup +/ nu and K/sup +/ to pi /sup 0/ mu /sup +/ nu have been investigated using a sample of events detected in the CERN 1.1 m/sup 3 / heavy liquid bubble chamber. Analyses have been carried out using methods independent of any assumption of the q/sup 2/ dependence of the form factors in addition to the usual linear parametrizations. Consistent results have been obtained from separate studies of both Dalitz plot density distributions and the branching ratio. A parametrized global analysis of both decay modes gives the values xi (0)=-1.3+or-0.7 and xi (4.4M/sub pi //sup 2/)=-0.45+or-0.13, or lambda /sub 0/=-0.017+or-0.011 both for a fitted value of lambda /sub + /=0.025+or-0.007. (56 refs).
id cern-873282
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1975
record_format invenio
spelling cern-8732822019-09-30T06:29:59Zdoi:10.1016/0550-3213(75)90094-2http://cds.cern.ch/record/873282engBraun, HBertrand, DCornelssen, MCsejthey-Barth, MoniqueCundy, Donald CErriquez, OLemonne, JMartyn, H UNatali, SPedersen, T IRenton, P BRomano, FVilain, PWaldren, DA study of the semi-leptonic decays of K/sup +/ mesonsParticle Physics - PhenomenologyThe form factors of the semi-leptonic decays K/sup +/ to pi /sup 0/e /sup +/ nu and K/sup +/ to pi /sup 0/ mu /sup +/ nu have been investigated using a sample of events detected in the CERN 1.1 m/sup 3 / heavy liquid bubble chamber. Analyses have been carried out using methods independent of any assumption of the q/sup 2/ dependence of the form factors in addition to the usual linear parametrizations. Consistent results have been obtained from separate studies of both Dalitz plot density distributions and the branching ratio. A parametrized global analysis of both decay modes gives the values xi (0)=-1.3+or-0.7 and xi (4.4M/sub pi //sup 2/)=-0.45+or-0.13, or lambda /sub 0/=-0.017+or-0.011 both for a fitted value of lambda /sub + /=0.025+or-0.007. (56 refs).oai:cds.cern.ch:8732821975
spellingShingle Particle Physics - Phenomenology
Braun, H
Bertrand, D
Cornelssen, M
Csejthey-Barth, Monique
Cundy, Donald C
Erriquez, O
Lemonne, J
Martyn, H U
Natali, S
Pedersen, T I
Renton, P B
Romano, F
Vilain, P
Waldren, D
A study of the semi-leptonic decays of K/sup +/ mesons
title A study of the semi-leptonic decays of K/sup +/ mesons
title_full A study of the semi-leptonic decays of K/sup +/ mesons
title_fullStr A study of the semi-leptonic decays of K/sup +/ mesons
title_full_unstemmed A study of the semi-leptonic decays of K/sup +/ mesons
title_short A study of the semi-leptonic decays of K/sup +/ mesons
title_sort study of the semi-leptonic decays of k/sup +/ mesons
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0550-3213(75)90094-2
http://cds.cern.ch/record/873282
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