Logarithmic corrections and soft photon phenomenology in the multipole model of the nucleon form factors

Vereshkov, G. M.; Lalakulich, O.

doi:10.1140/epja/i2007-10493-3

Cited by 2 publications

(4 citation statements)

References 86 publications

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“…The vector-meson-dominance (VMD) model [28,29] which we utilize to fit experimental data assumes that a photon propagating inside nucleon excites all the modes of a hadronic string carrying quantum numbers of the photon J P C = 1 −− . Thus, all the observed vector mesons (and, perhaps, hypothetical ones) should be incorporated in the model.…”

Section: Point-and Gauge-invariant Interactions Of On-shell Resonance...mentioning

confidence: 99%

“…Second, to retain correct high-Q 2 behavior of the FFs is also possible in minimally local effective field theory. To this end, one should incorporate the higher excitations of the vector mesons in the model and impose superconvergence relations on the parameters of the meson spectrum [28,50].…”

Section: Point-and Gauge-invariant Interactions Of On-shell Resonance...mentioning

confidence: 99%

“…Section IV concerns the point and gauge interactions of baryon resonances on the mass shell. The Q 2 dependencies of the Lagrangian form factors are parametrized in the vector dominance model developed in the papers [28,29]. The point-and gauge-invariant form factors exhibit peculiar gross features in their Q 2 behavior.…”

Section: Introductionmentioning

confidence: 99%

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Gauge- and point-invariant vertices of nucleon-to-resonance interactions

Vereshkov

Volchanskiy

2013

Phys. Rev. C

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We construct interactions of nucleons N with higher-spin resonances R invariant under point and gauge transformations of the Rarita-Schwinger field. It is found for arbitrarily high spin of a resonance that the requirement of point- and gauge-invariance uniquely determines a Lagrangian of NR interactions with pions, photons, and vector mesons, which might reduce model ambiguity in effective-field calculations involving such vertices. Considering the NR interactions with photons and vector mesons, the symmetry provides a classification of three NR vertices in terms of their differential order. The Q^2 dependencies of the point and gauge invariant form factors are considered in a vector-meson-dominance model. The model is in good agreement with experimental data. In addition, we point out some empirical patterns in the Q^2 dependencies of the form factors: low-Q^2 scaling of the N-Delta(1232) form factor ratios and relations between form factors for N-N(1520) and N-N(1680) transitions.Comment: 20 pages, 5 figure

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Section: Point-and Gauge-invariant Interactions Of On-shell Resonance...mentioning

confidence: 99%

Section: Point-and Gauge-invariant Interactions Of On-shell Resonance...mentioning

confidence: 99%

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Gauge- and point-invariant vertices of nucleon-to-resonance interactions

Vereshkov

Volchanskiy

2013

Phys. Rev. C

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“…So far as this work is just a generalization of the theory of e − N elastic scattering presented in [1] to the neutrino processes we consider vector weak FFs as well determined. Besides, contribution of G 3 to the cross section is proportional to lepton mass, so in case of light leptons (non τ-lepton processes) it is usually neglected.…”

Section: Introductionmentioning

confidence: 99%

Chiral symmetry and form factors of neutrino-nucleon interactions

Kanshin¹,

Vereshkov²

2012

Proceedings of the XXth International Workshop High Energy Physics and Quantum Field Theory — PoS(QFTHEP2011)

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Phenomenological multigauge model of neutrino-nucleon interaction based on chiral symmetry of strong interactions and vector/pseudovector meson dominance model is suggested. It was shown that within the framework of the model the constant of neutron beta decay is formed by meson masses and parameters of the hadronization of fundamental vector bosons. Then, quasi elastic (anti)neutrino-nucleon scattering processes have been investigated and it was found that weak nucleon form factor (FF) G A (Q 2 ) considered as multipole expansion multiplied on pQCD asymptotes is in a good agreement with experimental data.

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Logarithmic corrections and soft photon phenomenology in the multipole model of the nucleon form factors

Cited by 2 publications

References 86 publications

Gauge- and point-invariant vertices of nucleon-to-resonance interactions

Gauge- and point-invariant vertices of nucleon-to-resonance interactions

Chiral symmetry and form factors of neutrino-nucleon interactions

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