https://doi.org/10.1140/epjc/s10052-011-1674-6
Regular Article - Theoretical Physics
A minimal Beta Beam with high-Q ions to address CP violation in the leptonic sector
1
Dep. Física Teórica, Universidad Autónoma de Madrid, 28049, Madrid, Spain
2
I.F.T., Universidad Autónoma de Madrid/CSIC, 28049, Madrid, Spain
3
I.F.I.C., Universitat de Valencia/CSIC, 46071, Valencia, Spain
4
I.N.F.N., Sez. di Napoli, Napoli, Italy
5
Physik-Institut, University of Zurich, 8057, Zurich, Switzerland
6
I.N.F.N., Laboratori Nazionali di Frascati, Frascati (Rome), Italy
* e-mail: andrea.donini@uam.es
Received:
6
May
2010
Revised:
4
April
2011
Published online:
18
June
2011
In this paper we consider a Beta Beam setup that tries to leverage at most existing European facilities: i.e. a setup that takes advantage of facilities at CERN to boost high-Q ions (8Li and 8B) aiming at a far detector located at L=732 km in the Gran Sasso Underground Laboratory. The average neutrino energy for 8Li and 8B ions boosted at γ∼100 is in the range E ν ∈[1,2] GeV, high enough to use a large iron detector of the MINOS type at the far site. We perform, then, a study of the neutrino and antineutrino fluxes needed to measure a CP-violating phase δ in a significant part of the parameter space. In particular, for θ 13≥3°, if an antineutrino flux of 3×1019 useful 8Li decays per year is achievable, we find that δ can be measured in 60% of the parameter space with 3×1018 useful 8B decays per year.
© Springer-Verlag / Società Italiana di Fisica, 2011