Speaker
Christian Zimmermann
(University of Kentucky)
Description
The hadronic tensor is the central non-perturbative object in the calculation of the cross section of lepton-hadron interactions like neutrino-nucleon scattering. It is parameterized in terms of structure functions, which encode all necessary information independently of the kinematic region. We calculate correlation functions of two currents with Euclidean time separation using a clover fermion ensemble at pion mass $m_\pi = 223~\mathrm{MeV}$ and lattice spacing $a=0.085~\mathrm{fm}$. The resulting Euclidean matrix elements are linked to the hadronic tensor via a Laplace transform. We show some results for vector and axial vector currents and compare with experimental data.
Author
Christian Zimmermann
(University of Kentucky)