CAREER: To the Frontiers of Few-Nucleon Effective Field Theories

现代核物理学面临的挑战是理解低能强子和原子核的复杂结构是如何从量子色动力学QCD中产生的，量子色动力学是强相互作用的基本理论。有效场论是一种在低能量下独立于模型的系统描述，它导致了实验和理论之间充满活力的相互作用。该项目的目标是更好地理解核子和少核子系统的内部结构是如何从QCD中出现的：其方法的核心是对其理论不确定性的模型独立估计，这反过来又导致核结合效应和少核子力的可靠确定。两者都编码了关于QCD的基本信息。我将这种新颖的描述与发达但复杂的数值技术结合起来，将其扩展到轻核领域。除了内在的兴趣之外，我还将研究一些很难（如果不是不可能的话）测量但对天体物理学（例如大爆炸核合成或超新星）和粒子物理学标准模型扩展测试至关重要的少核子反应。此外，这种方法对于以最小的理论偏见比较和理解质子和中子的性质也是至关重要的。因此，我提供了与各种当前和即将进行的实验密切联系的模型无关的参数化和预测。一个重点是提取核子的极性，特别是迄今为止很少探索的自旋极性，它包含了核子的组成和自旋结构的基本信息。在高等教育科研与教学不可分割的情况下，我将以非传统的形式对本科生和研究生进行交流和教学技能的培训，使他们提高科学素养的总体水平。学生将在华盛顿特区为学校教师和高中生开设的GW课程中应用所学技能，那里的社会经济和教育指标特别低。

Modern Nuclear Physics rises to the challenge to understand how the complexstructure of hadrons and nuclei at low energies emerges from Quantum ChromoDynamics QCD, the fundamental theory of strong interactions. Effective FieldTheory, the model-independent, systematic description at low energies, haslead to a vibrant interplay between experiment and theory. The goal of this project is a better understanding how the internal structureof nucleons and few-nucleon systems emerges from QCD: The heart of itsapproach are model-independent estimates of its theoretical uncertaintieswhich in turn lead to reliable determinations of nuclear binding effects andfew-nucleon forces. Both encode essential information about QCD. I merge this noveldescription with well-developed but sophisticated numerical techniques toextend it into the realm of light nuclei. Besides the intrinsic interest, Iwill investigate few-nucleon reactions which are hard, if not impossible, to measurebut essential for Astro-Physics (e.g. in big-bang nucleo-synthesis orsupernovae) and for tests of extensions of the Standard Model of ParticlePhysics. Such an approach is in addition vital to compare and understandproton and neutron properties with a minimum of theoretical prejudice. I thereforeprovide model-independent parameterisations and predictions in close contact with avariety of current and upcoming experiments. One focus is to extract thenucleon polarisabilities, and in particular the so-far poorly exploredspin-polarisabilities, which contain essential information on the constituentsand spin-structure of the nucleon. With research and teaching inseparable in higher education, I will trainboth undergraduate and graduate students in communication and teaching skillsin a non-traditional format, enabling them to raise the general standard ofscientific literacy. Students will apply the acquired skills in GW courses forschool teachers and high-school pupils in the DC area, where thesocio-economic and educational indicators are particularly low.