Recent results from KLOE at DA Phi NE

F Ambrosino,A Antonelli,M Antonelli,C Bacci,M Barva,P Beltrame,G Bencivenni,S Bertolucci,C Bini,C Bloise,V Bocci,F Bossi,D Bowring,P Branchini,SA Bulychjov,R Caloi,P Campana,G Capon,T Capussela,G Carboni,F Ceradini,F Cervelli,S Chi,G Chiefari,P Ciambrone,S Conetti,E De Lucia,A De Santis,P de Simone,G De Zorzi,S Dell'Agnello,A Denig,A Di Domenico,C Di Donato,S Di Falco,B Di Micco,A Doria,M Dreucci,A Farilla,G Felici,A Ferrari,ML Ferrer,G Finocchiaro,C Forti,P Franzini,C Gatti,P Gauzzi,S Giovannella,E Gorini,E Graziani,M Incagli,W Kluge,V Kulikov,F Lacava,G Lanfranchi,J Lee-Franzini,D Leone,M Martemianov,M Martini,P Massarotti,M Matsyuk,W Mei,S Meola,R Messi,S Miscetti,M Moulson,S Muller,F Murtas,M Napolitano,F Nguyen,M Palutan,E Pasqualucci,L Passalacqua,A Passeri,V Patera,F Perfetto,L Pontecorvo,M Primavera,P Santangelo,E Santovetti,G Saracino,RD Schamberger,B Sciascia,A Sciubba, F Scuri,I Sfiligoi,A Sibidanov,T Spadaro,E Spiriti, M Tabidze,M Testa,L Tortora,P Valente,B Valeriani,G Venanzoni,S Veneziano,A Ventura,R Versaci,I Villella,G Xu

ACTA PHYSICA SLOVACA（2005）

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摘要

Recent results obtained by the KLOE experiment operating at DAPhiNE, the Frascati phi-factory, are presented. From a sample of about 10(9) phi-mesons produced at DAPhiNE, we select K-L and K-S tagged mesons. We present the preliminary results on the search for K-S --> 3pi(0), the branching ratio of the decay K-S --> pienu, and on the major K-L branching ratios, including the semileptonic decays relevant for the \V-us\ determination. A preliminary measurement of the K-L lifetime, using K-L --> pi(0)pi(0)pi(0) decays, is also given.

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