Using a large sample of pure, slow, short lived K-0 mesons collected with KLOE detector at DA Phi NE, we have measured the K-S lifetime. From a fit to the proper time distribution we find tau(K-S) = (89.562 +/- 0.029(stat) +/- 0.043(syst)) ps. This is the most precise measurement to date of the short lived K-0 meson lifetime, in good agreement with the world average derived from previous measurements. We observe no dependence of the lifetime on the direction of the K-S in galactic coordinates.

Precision measurement of the K-S meson lifetime with the KLOE detector / The Kloe, C., F., A., A., A., M., A., F., A., G., B., Bini, C., C., B., S., B., F., B., P., B., G., C., T., C., F., C., P., C., A., D.A., E., D.L., M., D.M., DE SANTIS, A., P., D.S., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 71:3(2011). [10.1140/epjc/s10052-011-1604-7]

Precision measurement of the K-S meson lifetime with the KLOE detector

BINI, Cesare;DE SANTIS, ANTONIO;DE ZORZI, Guido;DI DOMENICO, Antonio;FIORE, SALVATORE;FRANZINI, Paolo;GAUZZI, Paolo;PATERA, Vincenzo;
2011

Abstract

Using a large sample of pure, slow, short lived K-0 mesons collected with KLOE detector at DA Phi NE, we have measured the K-S lifetime. From a fit to the proper time distribution we find tau(K-S) = (89.562 +/- 0.029(stat) +/- 0.043(syst)) ps. This is the most precise measurement to date of the short lived K-0 meson lifetime, in good agreement with the world average derived from previous measurements. We observe no dependence of the lifetime on the direction of the K-S in galactic coordinates.
2011
01 Pubblicazione su rivista::01a Articolo in rivista
Precision measurement of the K-S meson lifetime with the KLOE detector / The Kloe, C., F., A., A., A., M., A., F., A., G., B., Bini, C., C., B., S., B., F., B., P., B., G., C., T., C., F., C., P., C., A., D.A., E., D.L., M., D.M., DE SANTIS, A., P., D.S., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 71:3(2011). [10.1140/epjc/s10052-011-1604-7]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/397027
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