TY  - JOUR
AU  - Agarwalla, S. K.
AU  - Huber, P.
AU  - Tang, J. A.
AU  - Winter, W.
PY  - 2011
DA  - 2011//
TI  - Optimization of the Neutrino Factory, revisited
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 120
EP  - 45pp
VL  - 01
IS  - 1
PB  - Springer
KW  - Beyond Standard Model
KW  - Neutrino Physics
AB  - We perform the baseline and energy optimization of the Neutrino Factory including the latest simulation results on the magnetized iron detector (MIND). We also consider the impact of tau decays, generated by v(mu) -> v(tau) or v(e) -> v(tau) appearance, on the mass hierarchy, CP violation, and theta(13) discovery reaches, which we find to be negligible for the considered detector. For the baseline-energy optimization for small sin(2) 2 theta(13), we qualitatively recover the results with earlier simulations of the MIND detector. We find optimal baselines of about 2 500km to 5 000km for the CP violation measurement, where now values of E-mu as low as about 12 GeV may be possible. However, for large sin(2) 2 theta(13), we demonstrate that the lower threshold and the backgrounds reconstructed at lower energies allow in fact for muon energies as low as 5 GeV at considerably shorter baselines, such as FNAL-Homestake. This implies that with the latest MIND analysis, low-and high-energy versions of the Neutrino Factory are just two different versions of the same experiment optimized for different parts of the parameter space. Apart from a green-field study of the updated detector performance, we discuss specific implementations for the two-baseline Neutrino Factory, where the considered detector sites are taken to be currently discussed underground laboratories. We find that reasonable setups can be found for the Neutrino Factory source in Asia, Europe, and North America, and that a triangular-shaped storage ring is possible in all cases based on geometrical arguments only.
SN  - 1126-6708
UR  - http://arxiv.org/abs/arXiv:1012.1872
UR  - https://doi.org/10.1007/JHEP01(2011)120
DO  - 10.1007/JHEP01(2011)120
LA  - English
N1  - ISI:000287937700037
ID  - Agarwalla_etal2011
ER  -