Thursday, July 4, 2013

1307.0807 (M. Bishai et al.)

Precision Neutrino Oscillation Measurements using Simultaneous
High-Power, Low-Energy Project-X Beams

M. Bishai, M. Diwan, S. Kettell, J. Stewart, R. Tschirhart, B. Viren, L. Whitehead, E. Worcester
The first phase of the long-baseline neutrino experiment, LBNE10, will use a broadband, high-energy neutrino beam with a 10-kt liquid argon TPC at 1300 km to study neutrino oscillation. In this paper, we describe potential upgrades to LBNE10 that use Project X to produce high-intensity, low-energy neutrino beams. Simultaneous, high-power operation of 8- and 60-GeV beams with a 200-kt water Cerenkov detector would provide sensitivity to nu_mu to nu_e oscillations at the second oscillation maximum. We find that with ten years of data, it would be possible to measure sin2(2theta_13) with precision comparable to that expected from reactor antineutrino disappearance and to measure the value of the CP phase, delta_CP, with an uncertainty of (5-10) degrees. This document is submitted for inclusion in Snowmass 2013.
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