论文标题
质子的横向动量结构在基础轻量量化框架内
Transverse momentum structure of proton within the basis light-front quantization framework
论文作者
论文摘要
我们在基础光量量化（BLFQ）框架内获得了质子的质子质量夸克式横向跨副微依赖性的parton分布函数（TMD PDF）。我们的结果与晶状体QCD计算以及共线限制的先前结果一致。我们还获得了柔软型边界的一致性。在我们的方法中，我们发现领先扭曲中的六个t-eveve tmd都彼此独立，并且先前发现的依赖模型的关系不存在。这是一个有希望的迹象，即我们的结果代表了QCD的未来，更广泛的治疗方法。此外，我们获得了$ \ left <（p^\ perp）^2 \ right> $的非平地$ x $依赖性，并且与高斯ANSATZ的一致性，但仅在小$（p^\ perp）^2 $区域中。这些特征表明我们的结果可能是将来的实验提取的有用替代方法。
We obtain the leading-twist valence quark transverse-momentum-dependent parton distribution functions (TMD PDFs) for the proton within the basis light-front quantization (BLFQ) framework. Our results are consistent with lattice QCD calculations and our previous results for the collinear limit. We also obtain consistency with the Soffer-type bounds. Within our approach, we find that six T-even TMDs in the leading twist are all independent of each other, and previously found model-dependent relations do not hold. This is a promising sign that our results are representative of future, more extensive treatments of QCD. Furthermore, we obtain a non-trivial $ x $-dependence of the $ \left<(p^\perp)^2\right> $ and some consistency with the Gaussian ansatz but only in the small $ (p^\perp)^2 $ region. Those features suggest our results may be a useful alternative in future experimental extractions.
