Empirical fit to inelastic electron-deuteron and electron-neutron resonance region transverse cross sections

被引：90

作者：

Bosted, P. E. ^{[1
]}

Christy, M. E. ^{[2
]}

机构：

[1] Jefferson Lab, Newport News, VA 23606 USA

[2] Hampton Univ, Hampton, VA 23668 USA

来源：

PHYSICAL REVIEW C | 2008年 / 77卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevC.77.065206

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：

An empirical fit is described to measurements of inclusive inelastic electron-deuteron cross sections in the kinematic range of four-momentum transfer 0 <= Q(2)< 10 GeV2 and final state invariant mass 1.1 < W < 3.2 GeV. The deuteron fit relies on a fit of the ratio R-p of longitudinal to transverse cross sections for the proton, and the assumption R-p=R-n. The underlying fit parameters describe the average cross section for a free proton and a free neutron, with a plane-wave impulse approximation used to fit to the deuteron data. Additional fit parameters are used to fill in the dip between the quasi-elastic peak and the Delta(1232) resonance. The mean deviation of data from the fit is 3%, with less than 4% of the data points deviating from the fit by more than 10%.

引用

页数：7

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