Please visit Jefferson Lab Event Policies and Guidance before planning your next event: https://www.jlab.org/conference_planning.

Indico is being upgraded to version 3.3.4 on October 15, 2024. There are no impacts to events expected. There are no major feature updates – only minor feature improvements and bugfixes. See the news link for more information.

Aug 4 – 7, 2022
MIT Laboratory for Nuclear Science
US/Eastern timezone

Two photon exchange at Jefferson Lab

Aug 5, 2022, 4:40 PM
20m
26-414 (MIT Laboratory for Nuclear Science)

26-414

MIT Laboratory for Nuclear Science

Speaker

Tyler Kutz (MIT/GW)

Description

Two photon exchange (TPE) and the larger class of hadronic box diagrams can be a significant radiative correction to lepton scattering and beta decay measurements. Notably, it has been hypothesized that TPE could be responsible for the proton form factor ratio discrepancy. However, these diagrams remain difficult to calculate without large uncertainty and model-dependence, and theoretical calculations of some observables sensitive to TPE are in disagreement with experimental results. Extending experimental measurements of complementary TPE observables can provide critical benchmarks for these calculations. I will summarize recent and future TPE measurements at Jefferson Lab, including those that would be made possible by the proposed addition of a positron source to Jefferson Lab’s accelerator facility.

Primary author

Tyler Kutz (MIT/GW)

Presentation materials