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Infrared regularization with spin-3/2 fields
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We present a Lorentz-invariant formulation of baryon chiral perturbation theory including spin-3/2 fields. Particular attention is paid to the projection on the spin-3/2 components of the delta fields. We also discuss the nucleon mass and the pion-nucleon sigma term.
Forward citations
Cited by 2 Pith papers
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On the photon mass generation in Rarita-Schwinger QED
The one-loop photon self-energy in Rarita-Schwinger QED is computed in 2, 3, and 4 dimensions, giving the Schwinger mass in 2D and higher-derivative-dominated pole structures in 3D.
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Bhabha-like scattering in the Rarita-Schwinger model at finite temperature
For a massive Rarita-Schwinger spin-3/2 fermion coupled to photons, the tree-level Bhabha-like differential cross-section is derived at finite temperature, with a claimed T squared high-temperature growth.
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