The gravitational form factor D(t) of the electron
Andreas Metz, B. Pasquini, Simone Rodini
Abstract
The electron-graviton interaction can be described in terms of the gravitational form factors of the QED energy-momentum tensor. Here we focus on the form factor D(t), and we examine its properties and its interpretation in terms of internal forces at one-loop accuracy in QED. We perform the calculation by keeping separate the contributions due to the electron and the photon parts of the energy-momentum tensor. We also study the case of a nonzero photon mass. Furthermore, we discuss similarities with and differences to the form factor D(t) of hadronic bound states.
Topics & Concepts
PhysicsGravitonTensor (intrinsic definition)ElectronMomentum (technical analysis)PhotonInterpretation (philosophy)Form factor (electronics)HadronGravitationStress–energy tensorGravitational energyQuantum electrodynamicsParticle physicsQuantum mechanicsExact solutions in general relativityGeometryFinanceProgramming languageComputer scienceMathematicsEconomicsQuantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studiesHigh-Energy Particle Collisions Research