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Analytic constraints on the energy-momentum tensor in conformal field theories
Cédric Lorcé, Peter Lowdon
In this work we investigate the matrix elements of the energy-momentum tensor for massless on-shell states in four-dimensional unitary, local, and Poincaré covariant quantum field…
Gravitational form factor constraints and their universality
Peter Lowdon, Sabrina Cotogno, Cédric Lorcé
By adopting a local QFT framework one can derive in a non-perturbative manner the constraints imposed by Poincaré symmetry on the form factors appearing in the Lorentz covariant de…
Universality of the Poincaré gravitational form factor constraints
Cédric Lorcé, Peter Lowdon
Relativistic spin states are convention dependent. In this work we prove that the zero momentum-transfer limits of the leading two form factors in the decomposition of the energy-m…
Poincaré constraints on the gravitational form factors for massive states with arbitrary spin
Sabrina Cotogno, Cédric Lorcé, Peter Lowdon
In this work we analyse the constraints imposed by Poincaré symmetry on the gravitational form factors appearing in the Lorentz decomposition of the energy-momentum tensor matrix e…