[Theory-seminars] Theory Seminar Tomorrow - Peter Blunden

[Caroline Silva Rocha Costa]

Dear all,

Tomorrow, at 1pm EST, we will have a hybrid seminar given by Peter Blunden of Manitoba University in CC L102 and on the Zoom for Government link:

https://jlab-org.zoomgov.com/j/1617965758?pwd=ZDZ0Z3VES2RRRU5NRFBRWmpjOGNFQT09
Join our Cloud HD Video Meeting<https://jlab-org.zoomgov.com/j/1617965758?pwd=ZDZ0Z3VES2RRRU5NRFBRWmpjOGNFQT09>
Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom Rooms is the original software-based conference room solution used around the world in board, conference, huddle, and training rooms, as well as executive offices and classrooms. Founded in 2011, Zoom helps businesses and organizations bring their teams together in a frictionless environment to get more done. Zoom is a publicly traded company headquartered in San Jose, CA.
jlab-org.zoomgov.com<http://jlab-org.zoomgov.com/>


Please see below for the title and abstract.


Theory Seminar: February 5th, 1pm EST (hybrid)


Speaker: Peter Blunden (Manitoba University)


Title: A Novel Approach to the Global Analysis of Proton Form Factors in Elastic Electron-Proton Scattering


Abstract: A global analysis of elastic electron-proton scattering requires combining data sets from experiments with different overall normalization uncertainties. In this talk, I will discuss a novel Monte Carlo approach to such problems that is a modification of one employed by the NNPDF collaboration in the fitting of parton-distribution data. This method is an alternative to the “penalty trick” method traditionally employed in global fits to proton electric and magnetic form factors, while avoiding the statistical biases inherent in that approach.

As a proof of concept, the method is applied to elastic scattering data with Q2 > 1 GeV2, for which there is a recent traditional analysis by the GMp12 Experiment. Implications for the well-known discrepancy between the form factor ratio GE/GM extracted from the Rosenbluth and polarization transfer techniques will be discussed, as will prospects for extending this approach to low Q2 data and the extraction of the proton charge radius.


See you tomorrow.


Best regards,

Caroline, Joe, and Zheng-Yang

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/theory-seminars/attachments/20240205/15ed1bc7/attachment.html>