https://doi.org/10.1140/epjc/s10052-023-12190-7
Letter
Energy–momentum tensor in the scalar diquark model
1
SoDa, INRIA Saclay, Palaiseau, France
2
CPHT, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91120, Palaiseau, France
d
rodini.simone.luigi@gmail.com
Received:
21
August
2023
Accepted:
25
October
2023
Published online:
7
November
2023
We study in detail the energy–momentum tensor of the scalar diquark model at the one-loop level using two different regularization methods. We extract the perturbative expressions for the gravitational form factors and we check explicitly that all the Poincaré sum rules are satisfied. We confirm in particular that, like in quantum electrodynamics, the symmetric energy–momentum tensor is finite. Finally, we discuss the results for the trace of the energy–momentum tensor and its relation to the mass of the system.
© The Author(s) 2023
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