Neutrino Superbeam Scenarios at the Peak

TL;DR

This paper explores optimal neutrino beam configurations for U.S. long baseline experiments, focusing on maximizing oscillation measurement capabilities at specific distances.

Contribution

It proposes specific baseline distances and beam configurations that enhance measurement sensitivity for neutrino oscillation parameters.

Findings

Feasible to determine mass hierarchy at 1290 km and 1770 km baselines.

Potential to measure $ heta_{13}$ and CP violation effects.

Possibility of observing tau neutrino appearance.

Abstract

We discuss options for U.S. long baseline neutrino experiments using upgraded conventional neutrino beams, assuming $L/E_\nu$ is chosen to be near the peak of the leading oscillation. We find that for L = 1290 km (FNAL-Homestake) or 1770 km (FNAL-Carlsbad, or BNL-Soudan) it is possible to simultaneously have good $\sin^22\theta_{13}$ reach and sgn($\delta m^2_{31}$) determination, and possibly sizeable $\tau$ rates and some $\delta$ sensitivity.