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Gauge-invariant decomposition of nucleon spin
We investigate the relation between the known decompositions of the nucleon spin into its constituents, thereby clarifying in what respect they are common and in what respect they are differentExpand
Is gauge-invariant complete decomposition of the nucleon spin possible?
Is gauge-invariant complete decomposition of the nucleon spin possible? Although it is a difficult theoretical question which has not reached a complete consensus yet, a general agreement now is thatExpand
The role of the orbital angular momentum in the proton spin
The orbital angular momenta Lu and Ld of up- and down-quarks in the proton are estimated as functions of the energy scale as model independently as possible on the basis of Ji's angular-momentum sumExpand
Chiral Symmetry and the Nucleon Structure Functions
The flavor asymmetry of the sea quark distribution as well as the unexpectedly small quark spin fraction of the nucleon are two outstanding discoveries recently made in the physics of deep-inelasticExpand
Phenomenological analysis of the nucleon spin contents and their scale dependence
In the past few years, a great deal of evidence has accumulated which indicates that the gluon polarization inside the nucleon is likely to be small at least at the low renormalization scales. On theExpand
Generalized parton distribution functions and the nucleon spin sum rules in the chiral quark soliton model
The theoretical predictions are given for the forward limit of the unpolarized spin-flip isovector generalized parton distribution function $({E}^{u}\ensuremath{-}{E}^{d})(x,\ensuremath{\xi},t)$Expand
The preparation of ferrocenedithiocarboxylic acid derivatives and their spectral properties
Abstract Ferrocenethiocarboxylic acid (FcCOSH) has been synthesized by the reaction of ferrocenecarboxylic acid chloride with sodium hydrogen sulfide. Treatment of this thioic acid and its ammoniumExpand
Gauge and frame-independent decomposition of nucleon spin
In a recent paper, we have shown that the way of gauge-invariant decomposition of the nucleon spin is not necessarily unique, but there still exists a preferable decomposition from the observationalExpand
πN sigma term and chiral-odd twist-3 distribution function e(x) of the nucleon in the chiral quark soliton model
The isosinglet combination of the chiral-odd twist-3 distribution function $e^u(x)+e^d(x)$ of the nucleon has outstanding properties that its first moment is proportional to the well-known $\pi N$Expand