Transverse Charge Densities
نویسندگان
چکیده
منابع مشابه
Empirical transverse charge densities in the deuteron
Using the recent empirical information on the deuteron electromagnetic form factors we map out the transverse charge density in the deuteron as viewed from a light front moving towards the deuteron. The charge densities for a transversely polarized deuteron are characterized by monopole, dipole and quadrupole patterns. PACS. 13.40.Gp Electromagnetic form factors – 21.10.Ft Charge distribution –...
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We discuss the techniques to extract the electromagnetic ∆ form factors in Lattice QCD. We evaluate these form factors using dynamical fermions with smallest pion mass of about 350 MeV. We pay particular attention to the extraction of the electric quadrupole form factor that signals a deformation of the ∆. The magnetic moment of the ∆ is extrapolated using a chiral effective field theory. Using...
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In a set of two papers, we propose to study an old-standing problem, namely the electromagnetic interaction for particles of arbitrary spin. Based on the assumption that light-cone helicity at tree level and Q = 0 should be conserved non-trivially by the electromagnetic interaction, we are able to derive all the natural electromagnetic moments for a pointlike particle of any spin. In this secon...
متن کاملEmpirical Transverse Charge Densities in the Nucleon and the Nucleon-to-∆ Transition
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 lat...
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ژورنال
عنوان ژورنال: Annual Review of Nuclear and Particle Science
سال: 2010
ISSN: 0163-8998,1545-4134
DOI: 10.1146/annurev.nucl.012809.104508