C Bemporad

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  • M Apollonio, A Baldini, C Bemporad, E Caffau, F Cei, Y Déclais +34 others
  • 2002
This final article about the CHOOZ experiment presents a complete description of the νe source and detector, the calibration methods and stability checks, the event reconstruction procedures and the Monte Carlo simulation. The data analysis, systematic effects and the methods used to reach our conclusions are fully discussed. Some new remarks are presented(More)
  • M Apollonio, A Baldini, C Bemporad, E Caaau, F Cei, Y D Eclais +33 others
  • 1997
Initial results are presented from CHOOZ 1 , a long{baseline reactor{neutrino vacuum{oscillation experiment. The data reported here were taken during the period March to October 1997, when the two reactors ran at combined power levels varying from zero to values approaching their full rated power of 8.5 GW (thermal). Electron antineutrinos from the reactors(More)
  • M Apollonio, A Baldini, C Bemporad, E Caffau, F Cei, Y Déclais +33 others
  • 2008
We present new results based on the entire CHOOZ 1 data sample. We find (at 90 % confidence level) no evidence for neutrino oscillations in the ¯ ν e disappearance mode, for the parameter region given by approximately δm 2 > 7 · 10 −4 eV 2 for maximum mixing, and sin 2 2θ = 0.10 for large δm 2. Lower sensitivity results, based only on the comparison of the(More)
An 800 ℓ liquid xenon scintillation γ ray detector is being developed for the MEG experiment which will search for µ + → e + γ decay at the Paul Scherrer Institut. Absorption of scintillation light of xenon by impurities might possibly limit the performance of such a detector. We used a 100 ℓ prototype with an active volume of 372×372×496 mm 3 to study the(More)
  • M Apollonio, A Baldini, C Bemporad, E Caaau, F Cei, Y D Eclais E +34 others
  • 1999
The CHOOZ experiment 1 has measured the antineutrino ux at about 1 Km from two nuclear reactors to search for possible e ! x oscillations with mass-squared diierences as low as 10 ?3 eV 2 for full mixing. We show that the analysis of the 2700 e {events, collected by our liquid scintillation detector, locates the antineutrino source within a cone of(More)
The angular distribution of upward-going muons produced by atmospheric neutrinos in the rock below the MACRO detector show anomalies in good agreement with two flavor νµ → ντ oscillations with maximum mixing and ∆m 2 around 0.0024 eV 2. Exploiting the dependence of magnitude of the matter effect on oscillation channel, and using a set of 809 upward-going(More)
In this paper we present the results of a search for nuclearites in the penetrating cosmic radiation using the scintillator and track-etch subdetectors of the MACRO apparatus. The analyses cover the β = v/c range at the detector depth (3700 hg/cm 2) 10 −5 < β < 1; for β = 2 × 10 −3 the flux limit is 2.7 × 10 −16 cm −2 s −1 sr −1 for an isotropic flux of(More)
We present the final results obtained by the MACRO experiment in the search for GUT magnetic monopoles in the penetrating cosmic radiation, for the range 4×10 −5 < β < 1. Several searches with all the MACRO sub-detectors (i.e. scintillation counters, limited streamer tubes and nuclear track detectors) were performed, both in stand alone and combined ways.(More)
The analysis of a combined data set, totaling 3.6 × 10(14) stopped muons on target, in the search for the lepton flavor violating decay μ(+) → e(+)γ is presented. The data collected by the MEG experiment at the Paul Scherrer Institut show no excess of events compared to background expectations and yield a new upper limit on the branching ratio of this decay(More)
  • J J Aubert, G Bonneau, F Martin, C Bacci, R Balbini Celio, M Bema-Rodini +42 others
  • 2011
fications system is not functioning and we therefore cannot separate muons from strongly interacting particles. However, outside the peak the data are consistent with our previously measured p.-pair cross section. Since a large wg or EE branching ratio would be unexpected for a resonance this massive, the two-body enhancement observed is probably but not(More)