Gravitational form factors of the delta resonance in chiral EFT
H. Alharazin, E. Epelbaum, J. Gegelia, Ulf-G. Meißner, Bao-Dong Sun
Abstract
Abstract The leading one-loop corrections to the gravitational form factors of the delta resonance are calculated in the framework of chiral effective field theory. Various contributions to the energy–momentum tensor and the renormalization of the low-energy constants are worked out. Using the small scale expansion, expressions for static quantities are obtained and the real and imaginary parts of the gravitational form factors are calculated numerically.
Topics & Concepts
PhysicsRenormalizationGravitationTensor (intrinsic definition)Resonance (particle physics)Quantum electrodynamicsGravitational fieldEffective field theoryField (mathematics)Stress–energy tensorMomentum (technical analysis)Mathematical physicsClassical mechanicsQuantum mechanicsExact solutions in general relativityMathematicsGeometryFinanceEconomicsPure mathematicsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsBlack Holes and Theoretical Physics