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

现代核物理学面临的挑战是理解强子和原子核在低能下的复杂结构是如何从强相互作用的基本理论量子色动学QCD中出现的。有效场理论，独立于模型的，系统的描述在低能量，导致了实验和理论之间的相互作用。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：其方法的核心是对理论不确定性的模型独立估计，这反过来又导致核束缚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。我将这个新颖的描述与发达但复杂的数值技术相结合，将其扩展到光核的领域。除了固有的兴趣之外，我还将研究少数核子反应，这些反应很难（如果不是不可能的话）测量，但对于天体物理学（例如大爆炸核合成或超新星）和粒子物理学标准模型扩展的测试至关重要。这种方法对于比较和理解质子和中子的性质是至关重要的，并且具有最小的理论偏见。因此，我提供了与模型无关的参数化和预测，并与各种当前和即将进行的实验密切联系。其中一个重点是提取核子极化率，特别是迄今为止很少探索的自旋极化率，它包含了关于核子组成和自旋结构的重要信息。由于高等教育中的研究和教学密不可分，我将以非传统的形式培训本科生和研究生的沟通和教学技能，使他们能够提高科学素养的总体水平。学生将在GW课程中应用所获得的技能，这些课程面向DC地区的学校教师和高中学生，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.