We present a measurement of the K-L lifetime using the KLOE detector. From a sample of similar to 4 x 10(8) KSKL pairs following the reaction e(+)e(-) -> Phi -> KSKL we select similar to 15 x 10(6) K-L pi(0)pi(0)pi(0) decays tagged by K-S -> pi(+)pi(-) events. From a fit of the proper time distribution we find tau(L) = (50.92 +/- 0.17(stat) +/- 0.25(syst)) ns. This is the most precise measurement of the KL lifetime performed to date. (c) 2005 Elsevier B.V. All rights reserved.

Ambrosino, F., Antonelli, A., Antonelli, M., Bacci, C., Beltrame, P., Bencivenni, G., et al. (2005). Measurement of the K-L meson lifetime with the KLOE detector. PHYSICS LETTERS. SECTION B, 626, 15-23 [10.1016/j.physletb.2005.08.022].

Measurement of the K-L meson lifetime with the KLOE detector

CERADINI, Filippo;DI MICCO, Biagio;
2005-01-01

Abstract

We present a measurement of the K-L lifetime using the KLOE detector. From a sample of similar to 4 x 10(8) KSKL pairs following the reaction e(+)e(-) -> Phi -> KSKL we select similar to 15 x 10(6) K-L pi(0)pi(0)pi(0) decays tagged by K-S -> pi(+)pi(-) events. From a fit of the proper time distribution we find tau(L) = (50.92 +/- 0.17(stat) +/- 0.25(syst)) ns. This is the most precise measurement of the KL lifetime performed to date. (c) 2005 Elsevier B.V. All rights reserved.
2005
Ambrosino, F., Antonelli, A., Antonelli, M., Bacci, C., Beltrame, P., Bencivenni, G., et al. (2005). Measurement of the K-L meson lifetime with the KLOE detector. PHYSICS LETTERS. SECTION B, 626, 15-23 [10.1016/j.physletb.2005.08.022].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/120256
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