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Department Colloquium | The Proton Remains Puzzling

Haiyan Gao (Duke University)
Wednesday, February 17, 2021
4:00-5:00 PM
Off Campus Location
Department Colloquium Link:

Nucleons (protons and neutrons) are the building blocks of atomic nuclei and are responsible for more than 99% of the visible matter in the universe. Despite decades of efforts in studying its internal structure, there are still a number of puzzles surrounding the proton such as its spin and the charge radius. The proton charge radius puzzle developed more than 10 ten years ago refers to a discrepancy of 5-7 standard deviations between the ultrahigh precise values of the proton charge radius determined from muonic hydrogen Lamb shift measurements and the CODATA values compiled from electron-proton scattering experiments and ordinary hydrogen spectroscopy measurements. In this talk following a short introduction, I will focus on the proton charge radius puzzle, the latest experimental results, especially those from the PRad experiment at Jefferson Lab, and the future outlook with the PRad-II experiment.
Building: Off Campus Location
Location: Virtual
Event Type: Workshop / Seminar
Tags: Physics, Science
Source: Happening @ Michigan from Department of Physics, Department Colloquia, Undergrad Physics Events