Parity-Violating Excitation of the Δ(1232): Hadron Structure and New Physics

Details Parity-Violating Excitation of the Δ(1232): Hadron Structure and New Physics Parity-Violating Excitation of the Δ(1232): Hadron Structure and New Physics

1998-01-17

arxiv.org/abs/nucl-th/9801025v2

Nucl.Phys. A633 (1998) 481-518

Physics

Nuclear Physics

Nuclear Theory

43 pages, RevTex, 8 PS figures, uses epsf.sty, rotate.sty, version to appear in Nucl. Phys. A, main points emphasized, some ty

Scientific paper

10.1016/S0375-9474(98)00147-X

We consider prospects for studying the parity-violating (PV) electroweak excitation of the \Delta(1232) resonance with polarized electron scattering. Given present knowledge of Standard Model parameters, such PV experiments could allow a determination of the N -> \Delta electroweak 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 -> \Delta measurement could constrain various extensions of the Standard Model.

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