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arXiv · hep-ph/0303198

Infrared regularization with spin-3/2 fields

Véronique Bernard·Thomas R. Hemmert·Ulf-G. Meißner
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Abstract

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.

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Véronique Bernard, Thomas R. Hemmert, Ulf-G. Meißner. 2003-03-24. Infrared regularization with spin-3/2 fields. https://doi.org/10.1016/s0370-2693(03)00538-0

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