Axial-vector properties of the nucleon with 1/Nccorrections in the solitonic SU(3)-NJL model

Abstract

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Tensor charges of the nucleon in the SU(3) chiral quark soliton model

“…For the first time, the octet tensor charge g (8) T and hence the net number of the transversely polarized strange quarks in a transversely polarized nucleon δs are calculated. An interesting feature of our model is that it predicts the negative nonzero number of the polarized strange quarks ∆s in the longitudinally polarized nucleon [30,31], which is consistent with the corresponding experimental value, whereas it yields the number of the transversely polarized strange quarks δs in a transversely polarized nucleon compatible with zero.…”

“…We see that the rotational 1/N c corrections are of great importance numerically, whereas the SU(3) symmetry breaking corrections are relatively small. Unlike the axial charges [30,31], the tensor ones in our model are closer to their values in nonrelativistic quark model, in particular the strangeness contribution to the tensor charge δs is compatible with zero, while the analogous contribution to the axial charge ∆s in the same model and in the experiment is negative and distinctive from zero [30].…”

Nucleon structures functionsin the three-flavor NJL soliton model

“…8 Here we do not specify the boundaries of the integrals because they will be subject to the boost into the infinite momentum frame, cf. eq (59).…”

Strange vector form factors of the nucleon in the SU(3) chiral quark-soliton model with the proper kaon cloud

“…with Goldstone bosons and has been shown to be quite successful in reproducing static properties of the baryons such as mass splitting [21,22], axial constants [23] and magnetic moments [24] and their form factors [25,26]. In a recent review [27], one can easily see how well the model describe the baryonic observables.…”