Speaker
Mr
Ziyuan Bai
(Columbia University in the city of New York)
Description
In this work, I used a $32^3 \times 64 \times 32$, 2+1 flavor domain wall
lattice with Iwasaki+DSDR gauge action. The pion mass is 171 MeV and the
kaon mass is 492 MeV. We implement the Glashow-Iliopoulos-Maiani (GIM)
cancellation using charm quark masses of 750 MeV and 592 MeV. This is an
intermediate calculation, in that we are using both a coarse lattice spacing
(1/a = 1.37GeV) so we expect significant discretization error coming from
charm quark mass and we are also using unphysical kinematics for the pion.
The main purpose of this calculation is to identify the contribution from
the two pion intermediate state when the energy of a two pion state is
smaller than that of the kaon.
Primary author
Mr
Ziyuan Bai
(Columbia University in the city of New York)
