Nuclear Currents in Chiral Effective Field Theory

Understand

In this article, we review the status of the calculation of nuclear currents within chiral effective field theory.

• After formal discussion of the unitary transformation technique and its application to nuclear currents we will give all available expressions for vector, axial-vector currents.
• Vector and axial-vector currents will be discussed up to order $Q$ with leading-order contribution starting at order $Q^{-3}$.
• Pseudoscalar and scalar currents will be discussed up to order $Q^0$ with leading-order contribution starting at order $Q^{-4}$.