Tensor charges of light baryons in the infinite momentum frame

Abstract

We have used the chiral-quark soliton model formulated in the infinite momentum frame to investigate the octet, decuplet, and antidecuplet tensor charges up to the $5Q$ sector. Using flavor $SU(3)$ symmetry we have obtained for the proton $\ensuremath{\delta}u=1.172$ and $\ensuremath{\delta}d=\ensuremath{-}0.315$ in fair agreement with previous model estimations. The $5Q$ contribution allowed us to estimate also the strange contribution to the proton tensor charge $\ensuremath{\delta}s=\ensuremath{-}0.011$. All those values have been obtained at the model scale ${Q}_{0}^{2}=0.36\text{ }\text{ }{\mathrm{GeV}}^{2}$.