Video URL
https://pirsa.org/15090017New Extraction of the Proton Radius from ep-Scattering Data
APA
Lee, G. (2015). New Extraction of the Proton Radius from ep-Scattering Data. Perimeter Institute for Theoretical Physics. https://pirsa.org/15090017
MLA
Lee, Gabriel. New Extraction of the Proton Radius from ep-Scattering Data. Perimeter Institute for Theoretical Physics, Sep. 08, 2015, https://pirsa.org/15090017
BibTex
@misc{ scivideos_PIRSA:15090017, doi = {10.48660/15090017}, url = {https://pirsa.org/15090017}, author = {Lee, Gabriel}, keywords = {Particle Physics}, language = {en}, title = {New Extraction of the Proton Radius from ep-Scattering Data}, publisher = {Perimeter Institute for Theoretical Physics}, year = {2015}, month = {sep}, note = {PIRSA:15090017 see, \url{https://scivideos.org/index.php/pirsa/15090017}} }
Gabriel Lee Technion - Israel Institute of Technology
Abstract
A new analysis of electron-proton scattering data (those published in 2010 by the Mainz A1 collaboration and previous world compilations) to determine the proton electric and magnetic radii is presented. The analysis enforces model-independent constraints of form factor analyticity and investigates a wide range of possible systematic effects. Employing standard models for radiative corrections, our improved analysis yields proton electric radii for the Mainz and world data sets that are consistent, although a simple combination yields a value r_E = 0.904(15) fm that is 4-sigma larger than the CREMA muonic hydrogen determination. Remaining possible deficiencies are discussed that, if addressed, could reconcile the values from muonic hydrogen spectroscopy and ep-scattering.