期刊
PHYSICS LETTERS B
卷 639, 期 3-4, 页码 223-231出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2006.05.091
关键词
deep inelastic scattering; semiinclusive nuclear reactions; neutron structure function
We present a model independent procedure for extracting deep-inelastic structure function of free neutron from the electron-deuteron scattering with protons produced in the target fragmentation region of the reaction. This procedure is based on the extrapolation of t, which describes the invariant momentum transfered to the proton, to the unphysical region corresponding to the mass of the struck neutron. We demonstrate that the impulse approximation diagram of the reaction has a pole at this limit with a residue being proportional to the free neutron structure function. The method is analogous to that of Chew and Low for extraction of the free pion-pion and neutron-neutron cross sections from p (pi, p)X and d(n, n)pn reactions, respectively. We demonstrate that in the extrapolation the final state interaction amplitudes are smooth functions of t and have negligible contribution in the extracted free nucleon structure function. We also estimate the range of the recoil nucleon momenta which could be used for successful extrapolation procedure. (c) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据