Causal perturbation theory approach to Yukawa’s model

Acevedo, O.A.; Beltrán, J.; Pimentel, B.M.; Soto, D.E.

doi:10.1140/epjp/s13360-021-01805-1

Causal perturbation theory approach to Yukawa’s model

Sep 1, 2021

Published in:

Eur.Phys.J.Plus 136 (2021) 9, 895

Published: Sep 1, 2021

DOI:

10.1140/epjp/s13360-021-01805-1

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Abstract: (Springer)

Neutral Yukawa’s model for the description of the interaction between nucleons and pions is studied in the framework of causal perturbation theory, an axiomatic S-matrix quantum field theory in which ultra-violet divergences do not arise as a consequence of a careful splitting of the causal distribution into its retarded and advanced parts. We calculate the scattering cross sections and radiative corrections, including the vertex function for this model, and show that all the normalization constants of these terms can be fixed by requirements on the physical values of the masses and coupling constant. We end with an analysis on the normalizability of this model and the possible self-interaction terms which can arise in higher-order calculations.

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Causal perturbation theory approach to Yukawa’s model

Citations per year

On the structure of atomic nuclei

The charge-dependence of nuclear forces

The origin of the concept of nuclear forces

The Origin of the concept of nuclear forces. 3. Quantum field theories, nuclear forces, and cosmic rays (1934 - 1938)

Analysis of the CP structure of the Yukawa coupling between the Higgs boson and τ\tauτ leptons in proton-proton collisions at s=13 TeV\sqrt{s}=13~\mathrm{TeV}s​=13 TeV

Three dimensional Yukawa models and CFTs at strong and weak couplings

General principles of quantum field theory

Analysis of the CP structure of the Yukawa coupling between the Higgs boson and $\tau$ leptons in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$