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

被引：31
作者：
Mukhopadhyay, NC [1 ]
Ramsey-Musolf, MJ
Pollock, SJ
Liu, J
Hammer, HW
机构：
[1] Rensselaer Polytech Inst, Dept Phys, Troy, NY 12180 USA
[2] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA
[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[4] TRIUMF, Vancouver, BC V6T 2A3, Canada
[5] Univ Connecticut, Dept Phys, Storrs, CT 06260 USA
来源：
NUCLEAR PHYSICS A | 1998年 / 633卷 / 03期
关键词：
parity-violation; electron scattering; delta resonance;
D O I：
10.1016/S0375-9474(98)00147-X
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
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. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：481 / 518
页数：38
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