DUNE Phase II: scientific opportunities, detector concepts, technological solutions
Creators
- 1. European Org Nucl Res, CERN, CH-1211 Meyrin, Switzerland
- 2. Univ Oxford, Oxford OX1 3RH, England
- 3. Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
- 4. Univ Atlantico, Barranquilla, Atlantico, Colombia
- 5. Univ Tecnol Fed Parana, Curitiba, Parana, Brazil
- 6. Georgian Tech Univ, Tbilisi, Georgia
- 7. Brookhaven Natl Lab, Upton, NY 11973 USA
- 8. Univ Bristol, Bristol BS8 1TL, Avon, England
- 9. Univ Estadual Campinas, BR-13083970 Campinas, SP, Brazil
- 10. Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
- 11. Univ Rochester, Rochester, NY 14627 USA
- 12. Univ Colorado Boulder, Boulder, CO 80309 USA
- 13. Kansas State Univ, Manhattan, KS 66506 USA
- 14. Augustana Univ, Sioux Falls, SD 57197 USA
- 15. Ctr Invest Energet Medioambientales & Tecnol, CIEMAT, E-28040 Madrid, Spain
- 16. Imperial Coll Sci Technol & Med, London SW7 2BZ, England
Description
The international collaboration designing and constructing the Deep Underground Neutrino Experiment (DUNE) at the Long-Baseline Neutrino Facility (LBNF) has developed a two-phase strategy toward the implementation of this leading-edge, large-scale science project. The 2023 report of the US Particle Physics Project Prioritization Panel (P5) reaffirmed this vision and strongly endorsed DUNE Phase I and Phase II, as did the European Strategy for Particle Physics. While the construction of the DUNE Phase I is well underway, this White Paper focuses on DUNE Phase II planning. DUNE Phase-II consists of a third and fourth far detector (FD) module, an upgraded near detector complex, and an enhanced 2.1 MW beam. The fourth FD module is conceived as a "Module of Opportunity", aimed at expanding the physics opportunities, in addition to supporting the core DUNE science program, with more advanced technologies. This document highlights the increased science opportunities offered by the DUNE Phase II near and far detectors, including long-baseline neutrino oscillation physics, neutrino astrophysics, and physics beyond the standard model. It describes the DUNE Phase II near and far detector technologies and detector design concepts that are currently under consideration. A summary of key R&D goals and prototyping phases needed to realize the Phase II detector technical designs is also provided. DUNE's Phase II detectors, along with the increased beam power, will complete the full scope of DUNE, enabling a multi-decadal program of groundbreaking science with neutrinos.
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