Measurement of the branching ratio and form-factors for the decay K(L) ---> pi+- pi0 e-+ nu(e)(anti-nu(e))
- Batley JR
- Dosanjh RS
- Gershon TJ
- Kalmus GE
- Lazzeroni C
- Munday D
- Olaiya E
- Patel M
- Parker MA
- White TO
- Wotton SA
- Arcidiacono Roberta
- Bocquet G
- Ceccucci A
- Cuhadar Donszelmann T
- Cundy D
- Doble N
- Falaleev V
- Gatignon L
- Gonidec A
- Gorini B
- Grafstrom P
- Kubischta W
- Mikulec I
- Norton Alan Robert
- Palestini S
- Wahl Heinrich
- Cheshkov C
- Hristov P
- Kekelidze V
- Litov L
- Madigozhin D
- Molokanova N
- Potrebenikov Y
- Zinchenko A
- Rubin P
- Sacco Bruno
- Walker Paul Andreas
- Bettoni Diego
- Calabrese Roberto
- Dalpiaz Pietro
- Duclos Jean
- Frabetti Pierluigi
- Gianoli Alberto
- Martini Manuele
- Masetti Lorenzo
- Petrucci Ferruccio
- Savrie' Mauro
- Scarpa Marcella
- Bizzeti Andrea
- Calvetti Mario
- Collazuol Gianmaria
- Iacopini Enrico
- Lenti Massimo
- Ruggiero Giuseppe
- Eppard K
- Eppard M
- Hirstius A
- Kleinknecht K
- Koch U
- Kopke L
- da Silva PL
- Marouelli P
- Mestvirishvili I
- Morales C
- Pellmann I
- Peters A
- Renk B
- Schmidt SA
- Schonharting V
- Wanke R
- Winhart A
- Chollet JC
- Fayard L
- Graziani Giacomo
- Iconomidou Fayard L
- Unal G
- Wingerter Seez I
- Anzivino Giuseppina
- Cenci Patrizia
- Imbergamo Ermanno
- Lamanna Gianluca
- Lubrano Pasquale
- Mestvirishvili A
- Michetti Andrea
- Nappi Aniello
- Pepe Marco
- Piccini Mauro
- Valdata Marisa
- Casali Roberto
- Cerri Claudio
- Cirilli Manuela
- Costantini Flavio
- Fantechi Riccardo
- Fiorini L
- Giudici Sergio
- Mannelli Italo
- Pierazzini Giuseppe
- Sozzi Marco
- Cheze JB
- De Beer M
- Debu P
- Derue F
- Formica A
- Gouge G
- Marel G
- Mazzucato E
- Peyaud B
- Turlay R
- Vallage B
- Holder M
- Maier A
- Ziolkowski M
- Biino Cristina
- Cartiglia Nicolo'
- Clemencic Marco
- Marchetto Flavio Pietro
- Menichetti Ezio
- Pastrone Nadia
- Nassalski J
- Rondio E
- Wislicki Wojciech
- Wronka S
- Dibon H
- Jeitler M
- Markytan M
- Neuhofer G
- Pernicka M
- Taurok A
- Widhalm L.
- MARTELLI, FILIPPO
- VELTRI, MICHELE
Publication date
January 2004
DOIAbstract
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
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