| Title: |
The LBNO long-baseline oscillation sensitivities with two conventional neutrino beams at different baselines |
| Authors: |
Weber, A; others), LAGUNA-LBNO Collaboration (158 |
| Publisher Information: |
Springer |
| Publication Year: |
2016 |
| Collection: |
Oxford University Research Archive (ORA) |
| Description: |
The proposed Long Baseline Neutrino Observatory (LBNO) initially consists of ~ 20 kton liquid double phase TPC complemented by a magnetised iron calorimeter, to be installed at the Pyhäsalmi mine, at a distance of 2300 km from CERN. The conventional neutrino beam is produced by 400 GeV protons accelerated at the SPS accelerator delivering 700 kW of power. The long baseline provides a unique opportunity to study neutrino flavour oscillations over their 1st and 2nd oscillation maxima exploring the L/E behaviour, and distinguishing effects arising from δCP and matter. In this paper we show how this comprehensive physics case can be further enhanced and complemented if a neutrino beam produced at the Protvino IHEP accelerator complex, at a distance of 1160 km, and with modest power of 450 kW is aimed towards the same far detectors. We show that the coupling of two independent sub-MW conventional neutrino and antineutrino beams at different baselines from CERN and Protvino will allow to measure CP violation in the leptonic sector at a confidence level of at least 3σ for 50% of the true values of δCP with a 20 kton detector. With a far detector of 70 kton, the combination allows a 3σ sensitivity for 75% of the true values of δCP after 10 years of running. Running two independent neutrino beams, each at a power below 1 MW, is more within today's state of the art than the long-term operation of a new single high-energy multi-MW facility, which has several technical challenges and will likely require a learning curve. |
| Document Type: |
article in journal/newspaper |
| Language: |
unknown |
| Availability: |
https://ora.ox.ac.uk/objects/uuid:fbd65fac-4b00-410a-b710-9ab345639480 |
| Rights: |
info:eu-repo/semantics/embargoedAccess |
| Accession Number: |
edsbas.FA8C7F67 |
| Database: |
BASE |