Contact-interaction Faddeev equation and,inter alia, proton tensor charges
نویسندگان
چکیده
منابع مشابه
Low Energy Proton-Deuteron Scattering with a Coulomb-Modified Faddeev Equation
A modified version of the Faddeev three-body equation to accommodate the Coulomb interaction, which was used in the study of three-nucleon bound states, is applied to the proton-deuteron scattering problem at energies below the three-body breakup threshold. A formal derivation of the equation in a time-independent scattering theory is given. Numerical results for phase shift parameters are pres...
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Two new sum rules for the quark tensor charges of the nucleon are proposed, based on a relation connecting the quark transversity distributions to the quark helicity distributions and the quark model spin distributions, and on the sum rules for the quark helicity distributions. The two sum rules are useful for an estimate of the values of the quark tensor charges δU and δD from the measured qua...
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pd capture processes at various energies have been analyzed based on solutions of 3N-Faddeev equations and using modern NN forces. The application of the Siegert theorem is compared to the explicit use of πand ρ-like exchange currents connected to the AV18 NN interaction. Overall good agreement with cross sections and spin observables has been obtained but leaving room for improvement in some c...
متن کاملFaddeev equation for heavy baryons in the quark–diquark picture
We derive the Faddeev equation for baryons containing a single heavy quark as an effective two–body equation containing quarks and diquarks. The quark interaction is assumed to originate from a Nambu-Jona-Lasinio type interaction, extended to include also heavy quarks which are treated in the heavy mass limit. From this we first estimate the light and heavy diquark properties and then present t...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2015
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.92.114034