Double Chooz is a short-baseline neutrino disappearance experiment. It detects ν̄e produced in the power plant of Chooz, France, where is located. The main goal of the experiment is the measurement of θ13 mixing angle and in 2011 for the first time the experiment observed an indication for a non zero value of such an oscillation parameter. The mixing angle was successively measured using only the far detector finding the best fit value of sin2(2θ13) = 0.090−0.029+0.032. The near detector is under construction and will start data taking by the middle of 2014 allowing the reduction of the systematic errors. In this paper I make a review of the Double Chooz experiment, focusing in particular on the latest results of the measurement of the mixing angle θ13 relying on the neutron absorption on Gadolinium. I also present results proving the capability of Double Chooz to identify the ortho-positronium. This has been done in an event-by-event basis for the first time in a large liquid scintillator experiments, and can be an additional handle for the electron/positron discrimination in future detectors based on such technology.

Minotti, A. (2017). Latest results from Double Chooz. Intervento presentato a: 2nd International Workshop on Prospects of Particle Physics : Neutrino Physics and Astrophysics, Valday, Russia [10.1134/S1063779616060162].

Latest results from Double Chooz

Minotti, A
2017

Abstract

Double Chooz is a short-baseline neutrino disappearance experiment. It detects ν̄e produced in the power plant of Chooz, France, where is located. The main goal of the experiment is the measurement of θ13 mixing angle and in 2011 for the first time the experiment observed an indication for a non zero value of such an oscillation parameter. The mixing angle was successively measured using only the far detector finding the best fit value of sin2(2θ13) = 0.090−0.029+0.032. The near detector is under construction and will start data taking by the middle of 2014 allowing the reduction of the systematic errors. In this paper I make a review of the Double Chooz experiment, focusing in particular on the latest results of the measurement of the mixing angle θ13 relying on the neutron absorption on Gadolinium. I also present results proving the capability of Double Chooz to identify the ortho-positronium. This has been done in an event-by-event basis for the first time in a large liquid scintillator experiments, and can be an additional handle for the electron/positron discrimination in future detectors based on such technology.
Si
slide + paper
Scientifica
Neutrino oscillation; neutrino mixing; reactor
English
2nd International Workshop on Prospects of Particle Physics : Neutrino Physics and Astrophysics
Minotti, A. (2017). Latest results from Double Chooz. Intervento presentato a: 2nd International Workshop on Prospects of Particle Physics : Neutrino Physics and Astrophysics, Valday, Russia [10.1134/S1063779616060162].
Minotti, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/316737
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