Jun 10 – 14, 2019
Bonn, Campus Poppelsdorf
Europe/Zurich timezone

Nucleon-to-Roper electromagnetic transition form factors at large Q²

Jun 12, 2019, 3:00 PM
HS 6

HS 6

Baryon structure through meson electroproduction, transition form factors, and time-like form factors Parallel Session C


José Rodriguez Quintero (University of Huelva)


High-precision nucleon-resonance electroproduction data on a large kinematic domain of energy and momentum transfer have proven crucial in revealing novel features of strong interactions within the Standard Model and unfolding structural details of baryon excited states. Thus, in anticipation of new data reaching to unprecedented photon virtuality, we employ a quark-diquark approximation to the three-valence-quark bound-state problem to compute γp→R+ and γn→R0 transition form factors on Q2/mN2∈[0,12], where mN is the nucleon mass. Having simultaneously analyzed both charged and neutral channels, we also provide a quark-flavor separation of the transition form factors. The results should be useful in planning new-generation experiments.

Primary authors

Dr Chen Chen (Sao Paulo, IFT) Dr Lu Ya (Nanjing U.) Daniele Binosi Craig Roberts (Argonne National Laboratory) José Rodriguez Quintero (University of Huelva) Dr Jorge Segovia (Universidad Pablo de Olavida)

Presentation materials