Abstract
The LAGUNA/LBNO collaboration proposes a new generation neutrino experiment to address fundamental questions in particle and astroparticle physics. The experiment consists of a far detector, Liquid Argon (LAr) double phase Time TPC (Time Projection Chamber), the fiducial mass of the detector is set to 20 kt in its first stage. The detector will be situated at 2300 km from CERN: this long baseline provides a unique opportunity to study the neutrino flavour oscillations over the first and second oscillation maxima and to explore the L/E (Length over energy) behaviour. The near detector is based on a high-pressure argon gas TPC situated at CERN. I will detail the physics potential of this experiment for determining without ambiguity the mass hierarchy (MH) in its first stage and discovering CP violation (CPV) using the CERN SPS beam with a power of 750 kw. The impact of the assumptions on the knowledge of the oscillation parameters and the systematic errors are very important and will be shown in detail to prove the force of the experiment assuming realistic and conservative parameter values.
Highlights
The LBNO (Long Baseline Neutrino Observatory) project is the result of two European Design Studies: LAGUNA in 2008 and LAGUNA/LBNO in 2011
From the point of view of the neutrino physics, the main scientific goal is the study of long baseline neutrino oscillations
The generation neutrino detectors will address fundamental questions in particle and astroparticle physics. They will determine the Mass Hierarchy of Neutrinos, this will open the way to the CP symmetry violation discovery and, if CP is violated, to the precise measure of the δCP phase
Summary
The LBNO (Long Baseline Neutrino Observatory) project is the result of two European Design Studies: LAGUNA in 2008 and LAGUNA/LBNO in 2011. The LAr detector will be coupled to a magnetized iron calorimeter (MIND) with muon momentum and charge determination, that will collect an independent neutrino sample and will serve as a tail catcher for CERN beam events occurring in the LAr target This first phase (4 years) will solve the MH problem with 100% probability and will give some hints of the value of the δCP phase. It could be put in evidence the slight different strength of the two T0 distributions due to the difference in term of oscillation probability between NH and IH. × 1020 PoT, corresponding to about 4 years of SPS running
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