Deep Underground Neutrino Experiment
Longitudinal section of the beamline for the experiment from the Main Injector
|Telescope style||neutrino detector|
The Deep Underground Neutrino Experiment (DUNE), formerly the Long Baseline Neutrino Experiment (LBNE) is a proposed neutrino experiment with a near detector at Fermilab and a far detector at the Sanford Underground Research Facility which will observe neutrinos produced at Fermilab. It will fire an intense beam of trillions of neutrinos from a production facility near Fermilab (in Illinois) over a distance of 1,300 kilometres (810 mi) to an instrumented multi-kiloton volume of liquid argon located at the Sanford Lab in South Dakota. The proposed detector is to be about 12 metres (39 ft) across. Part of the path of the neutrinos would take them 30 kilometres (19 mi) underground (the beam itself will start 1.5 kilometres (4,900 ft) under the surface).
The primary science objectives of DUNE are
- A comprehensive investigation of neutrino oscillations to test CP violation in the lepton sector
- Determine the ordering of the neutrino masses
- Search for neutrinos beyond the currently known three
Funding and construction
The far detector current design is for four modules of instrumented liquid argon with a fiducial volume of 10 kilotons each. The first two modules are expected to be complete in 2024, with the beam operational in 2026. The final module is planned to be operational in 2027.
Excavation of the cavities began on July 21, 2017, with researchers hoping to apply for funding for the detectors themselves in 2019.
The Particle Physics Project Prioritization Panel (P5) concluded in its 2014 report that the research activity being pursued by LBNE "should be reformulated under the auspices of a new international collaboration, as an internationally coordinated and internationally funded program, with Fermilab as host." The LBNE collaboration was officially dissolved on Jan. 30, 2015, shortly after the new collaboration recommended by P5 was formed on Jan. 22, 2015. The new collaboration selected the name Deep Underground Neutrino Experiment (DUNE).
- Ghosh, Pallab (15 February 2014). "UK backs huge US neutrino plan". BBC News. Retrieved 15 February 2014.
- Acciarri, R.; et al. (January 22, 2016). Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 1: The LBNF and DUNE Projects. Deep Underground Neutrino Experiment. Retrieved 10 August 2016.
- Cho, Adrian (July 21, 2017). "Excavation starts for U.S. particle physicists’ next giant experiment". Science.
- Particle Physics Project Prioritization Panel (May 2014). Ritz, Steve, ed. Building for Discovery: Strategic Plan for U.S. Particle Physics in the Global Context (Report of the Particle Physics Project Prioritization Panel (P5)). U. S. Department of Energy Office of Science and the National Science Foundation. Retrieved 26 March 2015.
- Strait, Jim (9 February 2015). "ELBNF and LBNF" (Presentation at All-Experimenters Meeting). Fermi National Accelerator Lab: Fermi National Accelerator Lab. p. 5. Retrieved 26 March 2015.
- Lykken, Joe (27 January 2015). "ELBNF is born". Fermilab Today. Retrieved 26 March 2015.
- Huber, Jennifer; Jepsen, Kathryn. "The dawn of DUNE". Symmetry Magazine. Fermilab/SLAC. Retrieved 26 March 2015.
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