Measuring DVCS on a neutron target is a necessary step to deepen our understanding of the structure of the nucleon in terms of Generalized Parton Distributions (GPDs). The combination of DVCS observables on neutron and proton targets allows to perform a flavor decomposition of the Compton Form Factors (CFFs), which are related to integrals of GPDs. Moreover, neutron-DVCS plays a complementary role to DVCS on a transversely polarized proton target in the determination of the CFF of the GPD E, the least known and constrained GPD that enters Ji’s angular momentum sum rule. A measurement of the beam-charge asymmetry (BCA) in the \(e^{\pm } d\rightarrow e^{\pm }n\gamma (p)\) reaction can significantly impact the experimental determination of the real CFFs of the E and, to a lesser extent, \(\widetilde{H}\) CFFs.

测量中子目标上的 DVCS 是加深我们对广义部分分布 (GPD) 核子结构理解的必要步骤。中子和质子目标上的 DVCS 观测值的组合允许执行与 GPD 积分相关的康普顿形状因子 (CFF) 的风味分解。此外，在确定 GPD E的 CFF 时，中子-DVCS 与横向极化质子目标上的 DVCS 起互补作用，GPD E是进入 Ji 角动量和规则的最少已知和约束的 GPD。\(e^{\pm } d\rightarrow e^{\pm }n\gamma (p)\)反应中束电荷不对称性（BCA）的测量可以显着影响真实 CFF 的实验确定在Ë并且，在较小程度上，\(\widetilde{H}\) CFF。