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

(2) INT; 3); (3) U. of Connecticut; (4) U. of Colorado; 5) ((1) RPI; (5) TRIUMF); H.-W. Hammer (2; J. Liu (1); M.J. Ramsey-Musolf (2; N.C. Mukhopadhyay (1)

arxiv: nucl-th/9801025 · v2 · submitted 1998-01-17 · ⚛️ nucl-th · hep-ph

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

N.C. Mukhopadhyay (1) , M.J. Ramsey-Musolf (2 , 3) , S.J Pollock (4) , J. Liu (1) , H.-W. Hammer (2 , 5) ((1) RPI , (2) INT

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U. of Washington (3) U. of Connecticut (4) U. of Colorado (5) TRIUMF)

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classification ⚛️ nucl-th hep-ph

keywords deltadeterminationelectroweakexcitationhadronmodelparity-violatingstandard

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

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