This DocDB will be archived as of EOB Friday, Aug. 28, 2015,
which no changes
additions can be made to it. The documents will remain available for download and reference. The destination for all new
documents and updates to existing documents for DUNE and LBNF is docs.dunescience.org.
In this note I discuss the principles behind a phased plan for realizing a Long-Baseline
Neutrino Experiment (LBNE) that focuses on U.S. leadership.
The most important issue that must be
resolved is the direction of the first phase of the experiment. Based on
both scientific and programmatic considerations, the U.S. should pursue
the best option for accelerator neutrino physics: namely the longer baseline towards
Homestake with an optimized broadband intense beam.