Measurement of the branching ratio and form factors for the decay K-L ->pi(+/-)pi(0)e(-/+)nu(e)((nu)over-bar(e))

Articolo

Data di Pubblicazione:

2004

Abstract:

The K-L --> pi(+/-)pi(0)e(-/+)v(e) ((v) over bar (e)) decay was investigated with the NA48 detector at CERN SPS using a beam of long-lived neutral kaons. The branching ratio Br(K-L --> pi(+/-)pi(0)e(-/+)v(e)((v) over bar (e)) = (5.21 +/- 0.07(stat) +/-0.09(syst)) x 10(-5) was fixed from a sample of 5464 events with 62 background events. The form factors (f) over bar (s), (f) over bar (p), lambda(g) and (h) over bar were found to be in agreement with previous measurements but with higher accuracy. The coupling parameter of the chiral Lagrangian L-3 = (-4.1 +/- 0.2) x 10(-3) was evaluated from the data. (C) 2004 Elsevier B.V. All rights reserved.

Tipologia CRIS:

03A-Articolo su Rivista

Keywords:

DIRECT CP VIOLATION

Elenco autori:

J. R. Batley;R. S. Dosanjh;T. J. Gershon;G. E. Kalmus;C. Lazzeroni;D. Munday;E. Olaiya;M. Patel;M. A. Parker;T. O. White;S. A. Wotton;R. Arcidiacono;G. Bocquet;A. Ceccucci;T. Cuhadar-Donszelmann;D. Cundy;N. Doble;V. Falaleev;L. Gatignon;A. Gonidec;B. Gorini;P. Grafstrom;W. Kubischta;I. Mikulec;A. Norton;S. Palestini;H. Wahl;C. Cheshkov;P. Hristov;V. Kekelidze;L. Litov;D. Madigozhin;N. Molokanova;Y. Potrebenikov;A. Zinchenko;P. Rubin;R. Sacco;A. Walker;D. Bettoni;R. Calabrese;P. Dalpiaz;J. Duclos;P. L. Frabetti;A. Gianoli;M. Martini;L. Masetti;E. Petrucci;M. Savrie;M. Scarpa;A. Bizzeti;M. Calvetti;G. Collazuol;E. Iacopini;M. Lenti;F. Martelli;G. Ruggiero;M. Veltri;K. Eppard;M. Eppard;A. Hirstius;K. Kleinknecht;U. Koch;L. Kopke;P. L. da;P. Marouelli;I. Mestvirishvili;C. Morales;I. Pellmann;A. Peters;B. Renk;S. A. Schmidt;V. Schonharting;R. Wanke;A. Winhart;J. C. Chollet;L. Fayard;G. Graziani;L. Iconomidou-Fayard;G. Unal;I. Wingerter-Seez;G. Anzivino;P. Cenci;E. Imbergamo;G. Lamanna;P. Lubrano;A. Mestvirishvili;A. Michetti;A. Nappi;M. Pepe;M. Piccini;M. Valdata-Nappi;R. Casali;C. Cerri;M. Cirilli;F. Costantini;R. Fantechi;L. Fiorini;S. Giudici;I. Mannelli;G. Pierazzini;M. Sozzi;J. B. Cheze;M. D. Beer;P. Debu;F. Derue;A. Formica;G. Gouge;G. Marel;E. Mazzucato;B. Peyaud;R. Turlay;B. Vallage;M. Holder;A. Maier;M. Ziolkowski;C. Biino;N. Cartiglia;M. Clemencic;F. Marchetto;E. Menichetti;N. Pastrone;J. Nassalski;E. Rondio;W. Wislicki;S. Wronka;H. Dibon;M. Jeitler;M. Markytan;G. Neuhofer;M. Pernicka;A. Taurok;L. Widhalm

Link alla scheda completa:

https://iris.unito.it/handle/2318/109908

Pubblicato in:

PHYSICS LETTERS. SECTION B

Journal