Study of the form factor in $K_{0} \rightarrow \pi e\nu$ decays

The vector form factor f/sub +/(t) has been studied with 1910 kinematic fully reconstructed events K/sup 0/ to pi e nu ; assuming a linear dependence of f/sub +/(t), where f/sub +/(t)=f/sub +/(0)(1+ lambda /sub +/t/m/sub pi //sup 2/), the authors obtain the result lambda /sub +/=0.022+or-0.014. Data...

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Detalles Bibliográficos
Autores principales: Neuhofer, G, Aubert, Jean-Jacques, Bartl, Walter, de Bouard, X, Lepeltier, V, Massonnet, Louis, Niebergall, F, Pessard, H, Regler, Meinhard, Steuer, M, Stier, H E, Vivargent, M, Willitts, T R, Winter, Klaus, Yvert, M
Lenguaje:eng
Publicado: 1972
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(72)90655-7
http://cds.cern.ch/record/875590
Descripción
Sumario:The vector form factor f/sub +/(t) has been studied with 1910 kinematic fully reconstructed events K/sup 0/ to pi e nu ; assuming a linear dependence of f/sub +/(t), where f/sub +/(t)=f/sub +/(0)(1+ lambda /sub +/t/m/sub pi //sup 2/), the authors obtain the result lambda /sub +/=0.022+or-0.014. Data at large values of t are found to be subject to a singularity in resolution, whose influence on lambda /sub +/ is demonstrated; the possible implications for previous experiments are discussed. (11 refs).

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