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KLOE has measured most decay branching ratios of K S , K L and K ±-mesons. It has also measured the K L and the K ± lifetime and determined the shape of the form factors involved in kaon semileptonic decays. We present in the following a description of the above measurements and a well organized compendium of all of our data, with particular attention to… (More)
c .w The entire data-acquisition chain, from the custom-made front-end electronics to-. the Fastbus readout and data-reduction module, for the digital readout of the SLD [l] limited streamer tube Warm Iron Calorimeter and Muon Identifier is described. Also described is a Fastbus Cosmic Logic Unit being developed to achieve the capability of reading cosmic… (More)
We present an improved determination of the CP and CP T violation parameters Re(ǫ) and Im(δ) based on the unitarity condition (Bell-Steinberger relation) and on recent results from the KLOE experiment. We find Re(ǫ) = (159.6 ± 1.3) × 10 −5 and Im(δ) = (0.4 ± 2.1) × 10 −5 , consistent with no CP T violation.
We have studied, with the KLOE detector at the DAΦNE Φ-Factory, the dynamics of the decay η → π + π − π 0 using η mesons from the decay φ → ηγ for an integrated luminosity L = 450 pb −1. From a fit to the Dalitz plot density distribution we obtain a precise measurement of the slope parameters. An alternative parametrization relates the π + π − π 0 slopes to… (More)
Concurrent engineering facilities (CEFs) are successfully used in the aeropsace sector to design systems and services that that fulfill the requirements. Model-‐based systems engineering (MBSE) enables the effective (i.e., unambiguous) communication in the collaborative activities within BLOCKIN
The KLOE detector at DAΦNE , the Frascati φ-factory, has collected about 30 pb −1 by the end of year 2000. The φ(1020) meson decays about 34% of the times into a K 0 L-K 0 S pair; DAΦNE is therefore an exceptional source of almost monochromatic, tagged K 0 S particles, allowing for detailed studies of their more rare decays. The above mentioned integrated… (More)
We present a study of the reaction e + e − →π + π − γ at the φ peak with the KLOE detector at the φ–factory DAΦNE. This reaction allows us to obtain the cross section for e + e − →π + π − from the e + e − center-of-mass energy W = m φ = 1019 MeV down to threshold, i.e. 2m π < M ππ < m φ. This is called radiative return. The status of the analysis and… (More)