Using a sample of over 400 million φ→KSKL decays produced during the years 2001 and 2002 at the DAΦNE e+e− collider, the ratio RπS = Γ(KS →π+π−(γ))/Γ (KS →π0π0) has been measured with the KLOE detector. The result is RπS= 2.2555±0.0012stat ±0.0021corr-stat ±0.0050syst , which is in good agreement with the previously published result based on the KLOE data sample from the year 2000. The average of the KLOE results is RπS =2.2549±0.0054, reducing the total error by a factor of three, to 0.25%.

Precise measurement of Gamma(K-S -> pi(+)pi(-)(gamma))/Gamma(K-S -> pi(0)pi(0)) with the KLOE detector at DA phi NE / F., A., A., A., M., A., C., B., P., B., G., B., S., B., Bini, C., C., B., S., B., V., B., F., B., D., B., P., B., Caloi, R., P., C., G., C., T., C., F., C., S., C., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 48:(2006), pp. 767-780. [10.1140/epjc/s10052-006-0021-9]

Precise measurement of Gamma(K-S -> pi(+)pi(-)(gamma))/Gamma(K-S -> pi(0)pi(0)) with the KLOE detector at DA phi NE

BINI, Cesare;CALOI, Rita;DE SANTIS, ANTONIO;DE ZORZI, Guido;DI DOMENICO, Antonio;FIORE, SALVATORE;FRANZINI, Paolo;GAUZZI, Paolo;LACAVA, Francesco;PATERA, Vincenzo;SCIUBBA, Adalberto;
2006

Abstract

Using a sample of over 400 million φ→KSKL decays produced during the years 2001 and 2002 at the DAΦNE e+e− collider, the ratio RπS = Γ(KS →π+π−(γ))/Γ (KS →π0π0) has been measured with the KLOE detector. The result is RπS= 2.2555±0.0012stat ±0.0021corr-stat ±0.0050syst , which is in good agreement with the previously published result based on the KLOE data sample from the year 2000. The average of the KLOE results is RπS =2.2549±0.0054, reducing the total error by a factor of three, to 0.25%.
2006
01 Pubblicazione su rivista::01a Articolo in rivista
Precise measurement of Gamma(K-S -> pi(+)pi(-)(gamma))/Gamma(K-S -> pi(0)pi(0)) with the KLOE detector at DA phi NE / F., A., A., A., M., A., C., B., P., B., G., B., S., B., Bini, C., C., B., S., B., V., B., F., B., D., B., P., B., Caloi, R., P., C., G., C., T., C., F., C., S., C., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 48:(2006), pp. 767-780. [10.1140/epjc/s10052-006-0021-9]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/232784
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