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arXiv · 2303.11538

Gravitational transverse-momentum distributions

Cédric Lorcé·Qin-Tao Song
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Abstract

We study the energy-momentum tensor of spin-$0$ and spin-$\frac{1}{2}$ hadrons in momentum space. We parametrize this object in terms of so-called gravitational transverse-momentum distributions, and we identify in the quark sector the relations between the latter and the usual transverse-momentum distributions. Focusing on particular components of the energy-momentum tensor, we study momentum densities, flux of inertia and stress distribution in momentum space, revealing part of the wealth of physical information that can be gained from higher-twist transverse-momentum distributions.

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Cédric Lorcé, Qin-Tao Song. 2023-03-21. Gravitational transverse-momentum distributions. https://doi.org/10.1016/j.physletb.2023.138016

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