On the physics behind the form factor ratio $μ_p G_E^p (Q^2) / G_M^p (Q^2)$

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dc.creatorWakamatsu, M.
dc.creatorNakakoji, Y.
dc.date2008-01-29
dc.date2008-10-03
dc.date.accessioned2026-07-07T11:55:40Z
dc.date.available2026-07-07T11:55:40Z
dc.descriptionWe point out that there exist two natural definitions of the nucleon magnetization densities : the density $ρ_M^K (r)$ introduced in Kelly's phenomenological analysis and theoretically more standard one $ρ_M (r)$. We can derive an explicit analytical relation between them, although Kelly's density is more useful to disentangle the physical origin of the different $Q^2$ dependence of the Sachs electric and magnetic form factors of the nucleon. We evaluate both of $ρ_M (r)$ and $ρ_M^K (r)$ as well as the charge density $ρ_{ch}(r)$ of the proton within the framework of the chiral quark soliton model, to find a noticeable qualitative difference between $ρ_{ch}(r)$ and $ρ_M^K (r)$, which is just consistent with Kelly's result obtained from the empirical information on the Sachs electric and magnetic form factors of the proton.
dc.description12 pages, 5 figures. version to appear in J. Phys. G.: Nucl. Part. Phys
dc.identifierhttps://arxiv.org/abs/0801.4427
dc.identifierhttp://arxiv.org/abs/0801.4427
dc.identifierJ.Phys.G35:125003,2008
dc.identifierdoi:10.1088/0954-3899/35/12/125003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205318
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.titleOn the physics behind the form factor ratio $μ_p G_E^p (Q^2) / G_M^p (Q^2)$
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