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On Gravitational Form Factors and Transverse Spin Sum Rule

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Using the light front wave functions of the scalar quark–diquark model for nucleon predicted by the soft-wall AdS/QCD, we calculate the flavor dependent gravitational form factors. We evaluate the matrix element of Pauli–Lubanski operator in this model and show that the intrinsic spin sum rule involves the higher twist form factor \({\bar{C}}\). The longitudinal momentum densities in the transverse impact parameter space are also discussed for both unpolarized and transversely polarized nucleons.

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Chakrabarti, D., Mondal, C. & Mukherjee, A. On Gravitational Form Factors and Transverse Spin Sum Rule. Few-Body Syst 57, 437–442 (2016).

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