Speaker
Mr
Jens Hoff
(Institute for Theoretical Particle Physics (TTP), Karlsruhe Institute of Technology (KIT))
Description
Current correlators provide an important tool to relate theoretical calculations and experimental measurements. In this talk non-diagonal correlators of scalar, pseudoscalar, vector and axialvector currents are considered coupling to fermions with two different masses m_1 and m_2. We evaluate moments up to three-loop order considering the hierarchies m_1 >> m_2 and m_1 = m2. It is shown that the combination of the two expansions leads to an excellent approximation of the exact result.
Primary authors
Mr
Jens Hoff
(Institute for Theoretical Particle Physics (TTP), Karlsruhe Institute of Technology (KIT))
Prof.
Matthias Steinhauser
(Institute for Theoretical Particle Physics (TTP), Karlsruhe Institute of Technology (KIT))
