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Using a large sample of pure, slow, short lived K 0 mesons collected with KLOE detector at DAΦNE, we have measured the K S lifetime. From a fit to the proper time distribution we find τ ( 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.

Using a large sample of pure, slow, short lived K0 mesons collected with KLOE detector at DAΦNE, we have measured the KS lifetime. From a fit to the proper time distribution we find τ(KS)=(89.562±0.029stat±0.043syst) ps. This is the most precise measurement to date of the short lived K0 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 KS in galactic coordinates.

. The Extreme Energy Events Project is an experiment for the detection of Extensive Air Showers which exploits the Multigap Resistive Plate Chamber technology. At the moment 40 EEE muon telescopes, distributed all over the Italian territory, are taking data, allowing the relative analysis to produce the first interesting results, which are reported here. Moreover, this Project has a strong added value thanks to its effectiveness in terms of scientific communication, which derives from the peculiar way it was planned and carried on.

The Forbush decrease following the large X2 solar flare on mid-February 2011 has been observed by the muon telescopes of the EEE Project, which are located in several Italian sites and at CERN. Data from two different telescopes of the EEE network have been analyzed and compared to those measured by neutron monitor stations. The variation of the muon counting rate during the Forbush decrease was also extracted for different intervals of the azimuthal angle of the incoming muons.

. Time correlated events due to cosmic muons from extensive air showers have been detected by means of telescope pairs of the EEE (Extreme Energy Events) Project array. The coincidence rate, properly normalized for detector acceptance, efficiency and altitude location, has been extracted as a function of the relative distance between the telescopes. The results have been also compared with additional measurements carried out by small scintillator detectors at various distances.

Using a large sample of pure, slow, short lived K super(0) mesons collected with KLOE detector at DA Phi NE, we have measured the K sub( )Slifetime. From a fit to the proper time distribution we find tau (K sub( )S=(89.562 plus or minus 0.029 sub(stat) plus or minus 0.043 sub(syst)) ps. This is the most precise measurement to date of the short lived K super(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 sub( )Sin galactic coordinates.

The Extreme Energy Events Project (EEE Project) is an innovative experiment to study very high energy cosmic rays by means of the detection of the associated air shower muon component. It consists of a network of tracking detectors installed inside Italian High Schools. Each tracking detector, called EEE telescope, is composed of three Multigap Resistive Plate Chambers (MRPCs). At present, 43 telescopes are installed and taking data, opening the way for the detection of far away coincidences over a total area of about 3 × 10 5 km 2 . In this paper we present the Monte Carlo simulations that have been performed to predict the expected coincidence rate between distant EEE telescopes.

We present a precise measurement of the ratio R sub(K) = Gamma (K arrow right e nu ( gamma ))/ Gamma (K arrow right mu nu ( gamma )) and a study of the radiative process K arrow right e nu gamma , performed with the KLOE detector. The results are based on data collected at the Frascati e super(+) e super(-) collider DA Phi NE for an integrated luminosity of 2.2 fb super(-1). We find R sub(K)=(2.493 plus or minus 0.025 sub(stat) plus or minus 0.019 sub(syst))10 super(-5), in agreement with the Standard Model expectation. This result is used to improve constraints on parameters of the Minimal Supersymmetric Standard Model with lepton flavor violation. We also measured the differential decay rate d Gamma (K arrow right e nu gamma )/dE sub( gamma ) for photon energies 10

We present a precise measurement of the ratio R sub(K)=(K1e (g))/(K1k (g)) and a study of the radiative process K1e g, performed with the KLOE detector. The results are based on data collected at the Frascati e super(+) e super(-) collider DANE for an integrated luminosity of 2.2 fb super(-1). We find R sub(K) =(2.493c0.025 sub(stat)c 0.019 sub(syst))10 super(-5), in agreement with the Standard Model expectation. This result is used to improve constraints on parameters of the Minimal Supersymmetric Standard Model with lepton flavor violation. We also measured the differential decay rate d(K1e g)/dE sub(g) for photon energies 10