News

July 28, 2023

The VCS-II Experiment at Jefferson Lab has been granted approval by the JLab Program Advisory Committee. The VCS-II (E12-23-001) Experiment at Jefferson Lab is among the 5 new Jefferson Lab proposals that were granted approval by the Program Advisory Committee (PAC51). The PAC awarded 62 days of beam time for the next phase of the proton generalized polarizabilities measurements.

July 28, 2023

The JLab Program Advisory Committee gives green light for the submission of a full proposal for the measurement of the proton polarizabilities with positron & polarized electron beams. The LOI-12+23-001 has been reviewed by the JLab PAC. The PAC51 report concludes that “The physics case presented in the proposal is robust, and the document is well written…., and the PAC encourages the proponents to proceed and submit a full proposal”. The collaboration will now proceed to the development of a new proposal towards the first measurement of the proton polarizabilities based on this new methodology.

December 19, 2022

US Department of Energy selects the VCS-I paper on the proton polarizabilities for a Science Highlight (publication highlight of special note). Each year, scientists with the Office of Science, at national laboratories, and supported by the Office of Science at the nation’s colleges and universities, publish thousands of research findings in the scientific literature. A small group of these are selected annually by the Office of Science as publication highlights of special note. The Department of Energy has selected our recent work on the proton polarizabilities for the December 19th Science Highlight.

December 1, 2022

News coverage of our recent paper on the proton polarizabilities: An updated list of news articles can be found here.

October 19, 2022

News Release, Thomas Jefferson National Accelerator Facility: The VCS-I paper on the proton electromagnetic polarizabilities is covered by a Jefferson Lab news release.

October 19, 2022

The VCS Collaboration publishes in Nature new measurements of the proton’s electromagnetic polarizabilities: The new results from the VCS-I experiment reveal a puzzling structure in the proton’s electric generalized polarizability and present significant challenges to the nuclear theory. The paper is published in Nature 611, 265 (2022)

July 29, 2016

he VCS-I Experiment at Jefferson Lab has been granted approval by the JLab Program Advisory Committee. The VCS-I (E12-15-001) Experiment at Jefferson Lab is among the new Jefferson Lab proposals that were granted approval and was awarded beamtime by the Program Advisory Committee (PAC44).