2024-03-29T13:27:14Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/243072017-01-17T13:03:21Zcom_10261_61com_10261_4col_10261_314
00925njm 22002777a 4500
dc
Mena, Olga
author
Pascoli, S.
author
Li, Tracey
author
Fernández-MartÃnez, Enrique
author
2010-04-01
The low energy neutrino factory has been proposed as a very sensitive setup for future searches for CP violation and matter effects. Here we study how its performance is affected when the experimental specifications of the setup are varied. Most notably, we have considered the addition of the "platinum'' nu(mu) -> nu(e) channel. We find that, while theoretically the extra channel provides very useful complementary information and helps to lift degeneracies, its practical usefulness is lost when considering realistic background levels. Conversely, an increase in statistics in the "golden'' nu(mu) -> nu(e) channel and, to some extent, an improvement in the energy resolution, lead to an important increase in the performance of the facility, given the rich energy dependence of the "golden'' channel at these energies. We show that a low energy neutrino factory with a baseline of 1300 km, muon energy of 4.5 GeV, and either a 20 kton totally active scintillating detector or 100 kton liquid argon detector, can have outstanding sensitivity to the neutrino oscillation parameters theta(13), delta, and the mass hierarchy. For our estimated exposure of 2: 8 x 10(23) kton x decays per muon polarity, the low energy neutrino factory has sensitivity to theta(13) and delta for sin(2)(2 theta(13)) > 10(-4) and to the mass hierarchy for sin(2)(2 theta(13)) > 10(-3).
Physical Review - Section D - Particles and Fields 81 (7): 073010 (2010)
1550-7998
http://hdl.handle.net/10261/24307
10.1103/PhysRevD.81.073010
Improvement of the low energy neutrino factory