## Research subjects [2014]:

My research centers around the strong interaction, which is one of the
four fundamental forces of Nature. The microscopic theory of the strong
interaction is the quantum theory
of quarks and gluons, called Quantum Chromodynamics (QCD). Unlike the
quantum theory of electrons and photons, Quantum Electrodynamics (QED),
QCD is a strongly interacting theory and as a consequence a highly
non-linear theory which is very hard to treat exactly and only in very
special circumstances can be treated by approximation methods. A main
goal of my research is to try to learn as much as possible about the
manifestations of this complicated theory. This is not just a matter of
gaining a quantitative understanding, because even the qualitative
features are not
all understood or known yet.

The discovery of the Higgs boson has shown how important it is to know
well the distribution of gluons inside protons and if one could get an
equally accurate handle on the spin states of the quarks and gluons,
then one can use them in the search for new physics (beyond the
Standard Model of elementary particles). My research gravitates more
and more towards such applications. I am studying how the spin states
of gluons affect Higgs production and
how such things may help in the search for anomalous interactions of
the Higgs boson and for new gauge bosons, in particular the W' boson
from left-right symmetric extensions of the Standard Model.