TAUP 2013

Double Chooz latest results

12 Sept 2013, 14:20

20m

Asilomar, California

Oral Low-Energy Neutrinos (solar, reactor, supernova, and geo neutrinos and also nuclear astrophysics associated with these sources) Low Energy Neutrinos IV

Speaker

Camillo Mariani (Virginia Tech)

Description

In this talk we present an update on the results of theDouble Chooz detector. This experiment searches for themixing angle, ${\theta }_{13}$, in the three-neutrino mixing matrix via the disappearance of ${\overline{\nu }}_e$ produced by the dual 4.27 GWth Chooz B Reactors. We will show an update oscillation fit results using both the rate and the shape of the anti-neutrino energy spectrum. In the oscillation analysis we will include data with neutron capture on Gadolinium and Hydrogen and we will present the independent Reactor Rate Modulation (RRM) measurement of ${\theta }_{13}$ and the agreement with the rate+shape results. This is an important step in our multi-years program to establish the value of ${\theta }_{13}$. We will also give an update on the construction of the Double Chooz Near Detector and projections of Double Chooz's future experimental sensitivity to measure ${\sin }^{2}2{\theta }_{13}$-driven oscillations.