Resonance region structure functions and parity-violating deep inelastic scattering

被引：7

作者：

Carlson, Carl E. ^{[1
]}

Rislow, Benjamin C. ^{[1
]}

机构：

[1] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA

来源：

PHYSICAL REVIEW D | 2012年 / 85卷 / 07期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.85.073002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The primary motive of parity-violating deep inelastic scattering experiments has been to test the standard model, particularly the axial couplings to the quarks, in the scaling region. The measurements can also test for the validity of models for the off-diagonal structure functions F-1,2,3(gamma Z)(x, Q(2)) in the resonance region. The off-diagonal structure functions are important for the accurate calculation of the gamma Z-box correction to the weak charge of the proton. Currently, with no data to determine F-1,2,3(gamma Z)(x, Q(2)) directly, models are constructed by modifying existing fits to electromagnetic data. We present the asymmetry value for deuteron and proton targets predicted by several different F-1,2,3(gamma Z)(x, Q(2)) models and demonstrate that there are notable disagreements.

引用

页数：6

共 18 条

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