2025 HEPAP Membership

2025 Committee Membership is under review.

Highlights

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In nuclear beta decay an up quark ‘u’ in a proton converts into an up down quark ‘d,’ turning the proton into a neutron and emitting a positron and a neutrino. This work affects interpretation of beta decay measurements across the chart of nuclides.

New Precise Calculation of Nuclear Beta Decays Paves the Way to Uncover Physics Beyond the Standard Model

Theorists identify new effects needed to compute the nuclear beta decay rate with a precision of a few parts in ten thousand.

The Belle II experiment at the SuperKEKB accelerator measures particle interactions with extreme precision. Collisions of electron and positron beams create the high-energy environment needed to produce subatomic particles that do not otherwise exist in nature.

Belle II Detector Produces World’s Most Precise Measurements of Subatomic Particle Lifetimes

Particle lifetime measurements with early data from the Belle II experiment at the SuperKEKB accelerator demonstrate the experiment’s high precision.

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