49 citations · 124 across the 11 of their papers we have counts for
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A still unsettled issue in the nucleon spin decomposition problem : On the role of surface terms and gluon topology
Masashi Wakamatsu
In almost all the past analyses of the decomposition of the nucleon spin into its constituents, surface terms are simply assumed to vanish and not to affect the integrated sum rule…
Unravelling the physical meaning of the Jaffe-Manohar decomposition of the nucleon spin
Masashi Wakamatsu
A general consensus now is that there are two physically inequivalent complete decompositions of the nucleon spin, i.e. the decomposition of the canonical type and that of mechanic…
On the electromagnetic hadron current derived from the gauged Wess-Zumino-Witten action
Masashi Wakamatsu
In a recent paper, based on the Skyrme model with the Wess-Zumino-Witten term including electromagnetism, Eto et al. pointed out an intriguing possibility that the Gell-Mann-Nishij…
Can the Feynman-Hellmann theorem be used to separate the connected- and disconnected-diagram contributions to the nucleon sigma term ?
M. Wakamatsu, H. Tsujimoto
In recent lattice QCD studies, the Feynman-Hellmann theorem is often used to estimate separate contributions of the connected and disconnected diagrams to the nucleon sigma term. W…
Chiral Quark Soliton Model and Nucleon Spin Structure Functions
M. Wakamatsu
The chiral quark soliton model (CQSM) is one of the most successful models of baryons at quark level, which maximally incorporates the most important feature of low energy QCD, i.e…
Comparative Analysis of Transversities and Longitudinally Polarized Distributions of the Nucleon
M. Wakamatsu
We carry out a comparative analysis of the transversities and the longitudinally polarized parton distribution functions in light of the first empirical extraction of the transvers…