ToMCCA-3: 一种现实的三体合并模型
ToMCCA-3: A realistic 3-body coalescence model
AI总结：
本文提出一种基于威金函数形式的三体合并模型，通过结合现实的核相互作用势，改进传统模型以更精确描述轻核产生，并通过实验数据验证其有效性。
摘要：
在高能碰撞中形成轻核提供了关于强相互作用底层动态和粒子发射源结构的宝贵见解。理解这一过程对于核物理和天体物理研究都至关重要，后者中稀有反核的产生可能成为新物理的探针。本文提出了一种基于威金函数形式的三体合并模型，为轻核产生提供了更精确的描述。通过结合受现代散射和费米斯科普相关数据约束的现实的两体和三体核相互作用势，我们的方法改进了传统合并模型。该框架通过应用于质子-质子碰撞（√s=13 TeV）的事件生成器验证，以预测质量数A=3的轻（反）核的动量谱，然后与ALICE实验数据进行比较。我们的结果表明，轻核产量对核波函数的选择敏感，强调了对合并过程准确描述的重要性。该模型为将A=3轻核的合并研究扩展到更广泛的碰撞系统和能量范围奠定了基础。
英文摘要：
The formation of light nuclei in high-energy collisions provides valuable insights into the underlying dynamics of the strong interaction and the structure of the particle-emitting source. Understanding this process is crucial not only for nuclear physics but also for astrophysical studies, where the production of rare antinuclei could serve as a probe for new physics. This work presents a three-body coalescence model based on the Wigner function formalism, offering a refined description of light-nucleus production. By incorporating realistic two- and three-body nuclear interaction potentials constrained by modern scattering and femtoscopic correlation data, our approach improves on traditional coalescence models. The framework is validated using event generators applied to proton-proton collisions at $\sqrt{s}=13$ TeV to predict the momentum spectra of light (anti) nuclear nuclei with mass number $A=3$, which are then compared with the experimental data from ALICE. Our results demonstrate the sensitivity of light nucleus yields to the choice of nuclear wave functions, emphasizing the importance of an accurate description of the coalescence process. This model lays the foundation for the extension of coalescence studies of $A=3$ light nuclei to a wider range of collision systems and energies.
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