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Field theory of nucleon to higher-spin baryon transitions

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arxiv nucl-th/9905065 v2 pith:I4247JZV submitted 1999-05-31 nucl-th hep-ph

V. Pascalutsa (NIKHEF) , R.G.E. Timmermans (KVI) This is my paper · ORCID
classification nucl-thhep-ph
keywords deltahigher-spincouplingsnucleontransitionsarguebaryonbaryons
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We discuss the nucleon to higher-spin $N$- and $\Delta$-resonance transitions by pions and photons. The higher-spin baryons are described by Rarita-Schwinger fields and, as we argue, this imposes a stringent consistency requirement on the form of the couplings. Popular $\pi N\Delta$ and $\gamma N\Delta$ couplings are inconsistent from this point of view. We construct examples of consistent interactions with the same nonrelativistic limit as the conventional ones.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. First determination of vector and tensor couplings from polarized $\pi\Delta$ photoproduction

    hep-ph 2026-06 unverdicted novelty 7.0 of 10

    First extraction of complete NΔ vector and tensor couplings to ρ, b1, a2 from polarized πΔ photoproduction using a Regge model on GlueX data.

  2. On the photon mass generation in Rarita-Schwinger QED

    hep-th 2024-12 reject novelty 6.0 of 10

    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.

  3. What Cosine Similarity of Label Representations Can and Cannot Tell us

    cs.LG 2026-03 unverdicted novelty 5.0 of 10

    For softmax classifiers, cosine similarity of unembeddings is uninformative about model probabilities because it can be reset to ±1 while leaving all probabilities unchanged.

  4. $|\Delta I|=3/2$ non-leptonic hyperon decays in covariant baryon chiral perturbation theory

    hep-ph 2026-08 conditional novelty 4.0 of 10

    In covariant baryon chiral perturbation theory, decuplet-baryon contributions with the consistent coupling scheme, plus pion loops, most improve the fit to the |ΔI|=3/2 hyperon decay amplitudes.

  5. Bhabha-like scattering in the Rarita-Schwinger model at finite temperature

    hep-th 2024-12 reject novelty 4.0 of 10

    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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