scholarly journals Anomalous tensor magnetic moments and form factors of the proton in the self-consistent chiral quark-soliton model

2010 ◽  
Vol 82 (5) ◽  
Author(s):  
Tim Ledwig ◽  
Antonio Silva ◽  
Hyun-Chul Kim
Keyword(s):  
Magnetic Moments ◽  
Form Factors ◽  
The Self ◽  
Soliton Model ◽  
Self Consistent

scholarly journals Electromagnetic transition form factors, E2/M1 and C2/M1 ratios of the baryon decuplet

2020 ◽  
Vol 80 (11) ◽  
Author(s):  
June-Young Kim ◽  
Hyun-Chul Kim
Keyword(s):  
Lattice Qcd ◽  
Empirical Data ◽  
Pion Mass ◽  
Form Factors ◽  
The Self ◽  
Transition Form ◽  
Lattice Data ◽  
Electromagnetic Transition ◽  
Self Consistent ◽  
Good Agreement

AbstractWe investigate the electromagnetic transition form factors of the baryon decuplet to the baryon octet, based on the self-consistent SU(3) chiral quark-soliton model, taking into account the effects of explicit breaking of flavor SU(3) symmetry. We emphasize the $$Q^2$$ Q 2 dependence of the electromagnetic $$N\rightarrow \Delta $$ N → Δ transition form factors and the ratios of E2/M1 and C2/M1 in comparison with the experimental and empirical data. In order to compare the present results of the electromagnetic transition form factors of the $$N\rightarrow \Delta $$ N → Δ with those from lattice QCD, we evaluate the form factors with the pion mass deviated from its physical value. The results of the E2/M1 and C2/M1 ratios are in good agreement with the lattice data. We also present the results of the electromagnetic transition form factors for the decuplet to the octet transitions.

scholarly journals Semileptonic hyperon decays in the self-consistent SU(3) chiral quark-soliton model

2008 ◽  
Vol 2008 (07) ◽  
pp. 132-132 ◽  
Author(s):  
Tim Ledwig ◽  
Antonio Silva ◽  
Hyun-Chul Kim ◽  
Klaus Goeke
Keyword(s):  
The Self ◽  
Soliton Model ◽  
Self Consistent ◽  
Hyperon Decays

scholarly journals Self-consistent account for phonon induced corrections to quadrupole moments of odd nuclei. Pole and non-pole diagrams.

2018 ◽  
Vol 182 ◽  
pp. 02109
Author(s):  
E. E. Saperstein ◽  
S. Kamerdzhiev ◽  
D. S. Krepish ◽  
S. V. Tolokonnikov ◽  
D. Voitenkov
Keyword(s):  
Experimental Data ◽  
Magnetic Moments ◽  
Lead Isotopes ◽  
The Self ◽  
Quadrupole Moments ◽  
Important Ingredient ◽  
Consistent Theory ◽  
Fermi Systems ◽  
Consistent Model ◽  
Self Consistent

Recent results of the description of quadrupole moments of odd semi-magic nuclei are briefly reviewed. They are based on the self-consistent theory of finite Fermi systems with account for the phonon-particle coupling (PC) effects. The self-consistent model for describing the PC effects was developed previously for magnetic moments. Account for the non-pole diagrams is an important ingredient of this model. In addition to previously reported results for the odd In and Sb isotopes, which are the proton-odd neighbors of even tin nuclei, we present new results for odd Bi isotopes, the odd neighbors of even lead isotopes. In general, account for the PC corrections makes the agreement with the experimental data significantly better.

Electron–Phonon Interaction in Simple Metals: Beyond the Diffraction Model

1974 ◽  
Vol 52 (14) ◽  
pp. 1315-1321 ◽  
Author(s):  
J. P. Perdew ◽  
S. H. Vosko ◽  
R. A. Moore
Keyword(s):  
Exact Solution ◽  
Form Factors ◽  
The Self ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Consistent Field ◽  
Diffraction Model ◽  
Pseudopotential Calculations ◽  
Self Consistent ◽  
Self Consistent Field

The exact solution to the self-consistent field screening problem presented in a previous paper (Moore et al.), reduces in the weak pseudopotential limit to the diffraction model for the electron–phonon matrix element, and in particular to Animalu's expression for the screening of a nonlocal pseudopotential. Systematic corrections to the diffraction model, including local field effects, are presented for a pseudopotential of moderate strength; these corrections are particularly simple when the pseudopotential is local. Local pseudopotential calculations of the anisotropic electron–phonon form factors indicate that corrections to the diffraction model are small in sodium but substantial in lithium.

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