Empirical transverse charge densities in the nucleon and the nucleon-to-Delta transition
Oct, 20075 pages
Published in:
- Phys.Rev.Lett. 100 (2008) 032004
e-Print:
- 0710.0835 [hep-ph]
Report number:
- WM-07-109,
- JLAB-THY-07-738
Experiments:
- JLAB-E-01-001,
- JLAB-E-02-013,
- JLAB-E-04-108,
- JLAB-E-04-110,
- JLAB-E-93-026,
- JLAB-E-93-027,
- JLAB-E-93-038,
- JLAB-E-94-017,
- JLAB-E-99-007
Citations per year
Abstract: (arXiv)
Using only the current empirical information on the nucleon electromagnetic form factors we map out the transverse charge density in proton and neutron as viewed from a light front moving towards a transversely polarized nucleon. These charge densities are characterized by a dipole pattern, in addition to the monopole field corresponding with the unpolarized density. Furthermore, we use the latest empirical information on the transition form factors to map out the transition charge density which induces the excitation. This transition charge density in a transversely polarized and contains both monopole, dipole and quadrupole patterns, the latter corresponding with a deformation of the hadron's charge distribution.- 14.20.Gk
- 13.40.Gp
- 14.20.Dh
- nucleon: radiative decay
- nucleon Delta(1232): transition
- nucleon: form factor
- quark: charge
- charge: transverse
- charge: density
- nucleon: polarization
References(21)
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