标题： 核素的有效场理论：应对天体物理学中的基本问题 显示英文标题

标题： Effective Field Theory For Nuclei: Confronting Fundamental Questions in Astrophysics

摘要： 涉及著名太阳中微子问题中核的基本问题是通过一种适用于核少体系统的有效场论来讨论的，重点是质子融合过程和hep过程。 我们解决这些问题的策略是将手征微扰理论——一种QCD的有效场论——与精确的核物理方法相结合，以得到一种更有效的有效场论，该理论揭示并利用了手征对称性尺度在短距离效应中的微妙作用，这些短距离效应包含在短程核关联中。 我们的主要论点来自于hep过程中起关键作用的弱矩阵元与目前在实验室中正在测量的极化中子-质子捕获阈值处被抑制的矩阵元之间的密切类比。 显示英文摘要

摘要： Fundamental issues involving nuclei in the celebrated solar neutrino problem are discussed in terms of an effective field theory adapted to nuclear few-body systems, with a focus on the proton fusion process and the hep process. Our strategy in addressing these questions is to combine chiral perturbation theory -- an effective field theory of QCD -- with an accurate nuclear physics approach to arrive at a more effective effective field theory that reveals and exploits a subtle role of the chiral-symmetry scale in short-distance effects encoded in short-range nuclear correlations. Our key argument is drawn from the close analogy of the principal weak matrix element figuring in the hep process to the suppressed matrix elements in the polarized neutron-proton capture at threshold currently being measured in the laboratories.