论文标题
LARQL：一种用于治疗液体氩光和电荷产生的现象学模型
LArQL: A phenomenological model for treating light and charge generation in liquid argon
论文作者
论文摘要
实验数据表明，LAR中的电离电荷和闪烁光都取决于沉积的能量密度（$ de/dx $）和电场（$ \ Mathcal {e} $）。此外，免费电离电荷和闪烁光是反相关的，在给定的（$ de/dx $，$ \ Mathcal {e} $）对中进行互补。我们提出了LARQL，这是一种现象学模型，可提供光与电荷之间的反相关性及其对沉积能量以及施加的电场的依赖性。考虑到，考虑到无效电场和低电场的逃生电子的贡献，它与Birks的模型预测在较高场上进行了调整。对于以低$ \ MATHCAL {E} $和大量电离粒子而运行的LARTPC，观察到与当前Birks模型的偏差。 LARQL模型在$ de/dx $上提供了令人满意的描述，并且用于在LARTPC中进行交互的粒子，并且非常适合可用数据。通过数据集编译和全局拟合的改进也是模型的有趣特征。
Experimental data shows that both ionization charge and scintillation light in LAr depend on the deposited energy density ($dE/dx$) and electric field ($\mathcal{E}$). Moreover, free ionization charge and scintillation light are anticorrelated, complementary at a given ($dE/dx$, $\mathcal{E}$) pair. We present LArQL, a phenomenological model that provides the anticorrelation between light and charge and its dependence on the deposited energy as well as on the electric field applied. It modifies the Birks' charge model considering the contribution from the escape electrons at null and low electric fields, and reconciles with Birks' model prediction at higher fields. Deviations from current Birks' model are observed for LArTPCs operating at low $\mathcal{E}$ and for heavily ionizing particles. The LArQL model presents a satisfactory description at $dE/dx$ and field ranges for interacting particles in LArTPCs and fits well the available data. Improvements via data sets compilation and global fits are also interesting features of the model.
