Nucleon polarizabilities in virtual Compton scattering
Nucleon polarizabilities in virtual Compton scattering
复制标题
虚拟康普顿散射中的核子极化率
DOI：
10.1103/physrevc.58.1098
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发表时间：
1998
影响因子：
3.1
通讯作者：
O. Scholten
中科院分区：
文献类型：
--
作者：
A. Korchin;O. Scholten
我们提出了一个有效的拉格朗日模型，其中包括核子，π，西格玛，ρ，和欧米茄介子，重子共振与质量高达1.7 GeV的广义电，磁，自旋相关的极化率的质子在虚拟康普顿散射的动量依赖性的计算。该模型同时描述了π-核子散射相移、π光生多极子和康普顿散射截面。在K矩阵方法中实现信道空间pi N+gamma N内的么正性。研究了不同的贡献的广义极化率。
We present calculations of the momentum dependence of generalized electric, magnetic, and spin-dependent polarizabilities of the proton in virtual Compton scattering in an effective Lagrangian model which includes the nucleon, pi, sigma, rho, and omega mesons, and baryon resonances with masses up to 1.7 GeV. The model describes simultaneously pion-nucleon scattering phase shifts, pion photoproduction multipoles, and Compton scattering cross sections. The unitarity within the channel space pi N+gamma N is achieved in the K-matrix approach. The different contributions to the generalized polarizabilities are studied.