Speaker
Mr
Maximilian Jansen
(Helmholtz-Institut für Strahlen- und Kernphysik, University of Bonn)
Description
The quark mass dependence of hadrons is an important input for lattice
calculations. We investigate the light quark mass dependence of
the binding energy of the $X(3872)$ and the $\bar{D}^0D^{0*}$ scattering
length in the $C=+1$ channel in the framework of XEFT. We find a moderate
dependence of the binding energy for quark masses up to twice the physical value
while the scattering length is much more sensitive. The treatment of
infrared divergences due to on-shell pions in XEFT is discussed in detail.
Primary author
Mr
Maximilian Jansen
(Helmholtz-Institut für Strahlen- und Kernphysik, University of Bonn)
