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Parity-violating excitation of the Δ(1232): hadron structure and new physics

1998/01/31 by Nimai C. Mukhopadhyay, N. C. Mukhopadhyay, M. J. Ramsey-Musolf +7 · 32 citations
Physics and Astronomy · #Bootstrap model #Computer science #Electroweak interaction #Excitation #Hadron #Helicity #Interpretability #Neutrino Physics Research #Nuclear physics #Parity (physics) #Particle decay #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Polarization (electrochemistry) #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Standard Model (mathematical formulation) #hep-ph #nucl-th

paper · pdf · doi:10.1016/s0375-9474(98)00147-x

published in Nuclear Physics A 633(3), 481-518 (Elsevier BV) · 43 pages, RevTex, 8 PS figures, uses epsf.sty, rotate.sty, version to appear in Nucl. Phys. A, main points emphasized, some typos corrected

arxiv created 1998/02/13 · openalex publication_date 1998/04/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We consider prospects for studying the parity-violating (PV) electroweak excitation of the Δ(1232) resonance with polarized electron scattering. Given present knowledge of Standard Model parameters, such PV experiments could allow a determination of the N -> Δelectroweak helicity amplitudes. We discuss the experimental feasibility and theoretical interpretability of such a determination as well as the prospective implications for hadron structure theory. We also analyze the extent to which a PV N -> Δmeasurement could constrain various extensions of the Standard Model.

Citations