Energy–momentum tensor in the scalar diquark model
A Amor-Quiroz, W Focillon, C Lorcé… - The European Physical …, 2023 - Springer
A Amor-Quiroz, W Focillon, C Lorcé, S Rodini
The European Physical Journal C, 2023•SpringerWe 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.
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.
Abstract
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.
Springer
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