Electroexcitation of the Roper resonance in the relativistic quark models

Abstract

The amplitudes of the transition gamma* N -> P11(1440) are calculated within light-front relativistic quark model assuming that the P11(1440) is the first radial excitation of the 3q ground state. The results are presented along with the predictions obtained in other relativistic quark models. In comparison with the previous calculations, we have extended the range of Q^2 up to 4.5 GeV^2 to cover the kinematic interval of the forthcoming experimental data. Using approach based on PCAC, we have checked the relative sign between quark model predictions for the N and P11(1440) contributions to the pion electroproduction found in previous investigations.

5 pages, 1 figure, accepted by PRC

Cited by in corpus (10)

• Baryons as relativistic three-quark bound states
• A study of the $P_{11}(1440)$ and $D_{13}(1520)$ resonances from CLAS data on $ep\to e^{\prime }{\pi }^{+}{\pi }^{-}{p}^{\prime }$
• A systematic study of longitudinal and transverse helicity amplidutes in the hypercentral Constituent Quark Model
• Nucleon resonances in AdS/QCD
• Extraction of Electromagnetic Transition Form Factors for Nucleon Resonances within a Dynamical Coupled-Channels Model
• Dissecting nucleon transition electromagnetic form factors
• Electroproduction of the Roper resonance on the proton: the role of the three-quark core and the molecular N-sigma component
• First Lattice Study of the $N$-$P_{11}(1440)$ Transition Form Factors
• Semirelativistic approximation to the ${\gamma }^{\ast }N\to N(1520)$ and ${\gamma }^{\ast }N\to N(1535)$ transition form factors
• Meson Production and Baryon Resonances at CLAS