JUNO’s First Light: High-Precision Reactor Neutrino Oscillations

Michael Wurm (Universität Mainz)
Auditorium (Bldg 5, DESY Hamburg) and Zoom, 16:00h

JUNO is the world's largest liquid scintillator detector, located in southern China. With a 20-kiloton fiducial mass and a target energy resolution of 3% at 1 MeV, it is designed to set a new benchmark for reactor neutrino experiments. Positioned 55 km from two nuclear power plants at the first solar oscillation maximum, JUNO is uniquely suited for high-precision measurements of the reactor antineutrino oscillation pattern, with sensitivity to the neutrino mass ordering and the solar oscillation parameters. Having begun operations in August 2025, JUNO's first 59 days of physics data already yield a landmark result: a factor of 1.6 improvement in the uncertainties on the solar oscillation parameters, surpassing the precision of all previous measurements combined.

We invite you to attend the presentations in person at the DESY Auditorium in building 5. We will also offer a webcast for this colloquium.

Connection details:
Zoom link: https://desy.zoom.us/j/99616528733

Meeting ID: 996 1652 8733

Meeting Password: 733220

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Invitation poster for this colloquium