Wednesday, May 29, 2013

1305.6373 (Antonio Silva et al.)

Flavor structure of the nucleon electromagnetic form factors and
transverse charge densities in the chiral quark-soliton model
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Antonio Silva, Diana Urbano, Hyun-Chul Kim
We investigate the flavor decomposition of the electromagnetic form factors of the nucleon, based on the chiral quark-soliton model with symmetry-conserving quantization. We consider the rotational 1/N_c and linear strange-quark mass (m_s) corrections. To extend the results to higher momentum transfer, we take into account the kinematical relativistic effects. We discuss the results of the flavor-decomposed electromagnetic form factors in comparison with the recent experimental data. In order to see the effects of the strange quark, we compare the SU(3) results with those of SU(2). We finally discuss the transverse charge densities for both unpolarized and polarized nucleons.
View original: http://arxiv.org/abs/1305.6373

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