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在组分夸克模型中重子共振态的光子激发下，通过数值计算核子上光子总吸收截面σ1／2和σ3／2，检验了Gerasimov－Drell－Heam（GDH）求和规则．这种计算包括了总计17个低激发的、非奇异重子共振态．发现纵横相干截面在随Q2变化的求和规则研究中扮演了重要角色．结果显示在94％可信度上这些共振态使GDH求和规则饱和．特别是在Q2＝0和小Q2的区域，主要是共振态P33（1232）激发使求和规则饱和．在Q2＝1．0GeV2以下，GDH积分有一个很强的Q2依赖性质，且在Q2＝0．3GeV2附近变号．由于共振态贡献的迅速下降，当Q2＞1．0GeV2时，GDH积分对Q2依赖变弱．
The Gerasimov-Drell-Heam (GDH) summing rule was tested by numerically calculating the total photon cross sections σ1 / 2 and σ3 / 2 in the baryon resonance mode in the quark model. This calculation includes a total of 17 low-excitation, non-singular baryon resonances. It was found that the cross-section of aspect ratio plays an important role in the study of the summation rule with the change of Q2. The results show that these resonance states saturate the GDH summation rule at 94% confidence. Especially in the region of Q2 = 0 and small Q2, the predominantly resonant P33 (1232) excitation saturates the summing rule. Below Q2 = 1.0GeV2, the GDH integration has a strong Q2-dependent property and changes sign at around Q2 = 0.3GeV2. Due to the rapid decline in the contribution of the resonance state, the GDH score becomes less dependent on Q2 when Q2> 1.0 GeV2.