Start-up of the Nemo 3 Experiment
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چکیده
The NEMO collaboration is looking to measure neutrinoless double beta decay down to a lower limit of 0.1 eV for the effective neutrino mass. The NEMO 3 detector is now operating in the Fréjus Underground Laboratory. The expected performance and the data of the first runs are presented here.
منابع مشابه
Measurement of the background in the NEMO 3 double beta decay experiment
In the double beta decay experiment NEMO 3 a precise knowledge of the background in the signal region is of outstanding importance. This article presents the methods used in NEMO 3 to evaluate the backgrounds resulting from most if not all possible origins. It also illustrates the power of the combined tracking-calorimetry technique used in the experiment.
متن کاملThe Nemo-3 Experiment and the Supernemo Project
The NEMO experiment is investigating the neutrinoless double beta decay. The NEMO-3 detector is taking data in the Frejus Underground Laboratory. The goal of the SuperNEMO detector is to reach a sensitivity on the order of 10 year on the half-life of the ββ0ν process. The chosen isotopes for the future detector are Se and Nd, because of the reduced background. The collaboration has started a 3-...
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Since 2003 the NEMO 3 experiment has been searching for neutrinoless double beta decay using about 10 kg of enriched isotopes. A limit of T 0ν 1/2 > 5.8×10 23 years at 90% CL has been obtained for Mo from the first two years of data. Several measurements of 2νββ decays have also been performed. A first NEMO 3 measurement of the 2νββ half-life of Te is presented, giving a value of T 2ν 1/2 = (7....
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The NEMO-3 detector installed in the Modane Underground Laboratory (LSM, France) is running to search for neutrinoless double beta decay (ββ0ν) with an expected sensitivity for the effective Majorana neutrino mass down to 0.1 eV. New preliminary limits (90% CL), T 1/2 (ββ0ν) > 1.0 · 10 23 y (right-handed currents) and T 1/2 (ββ0ν) > 1.9 · 10 23 y (massive mechanism) were established analyzing 1...
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تاریخ انتشار 2002