Speaker
Taku Izubuchi
(Brookhaven National Laboratory & RIKEN-BNL Research Center)
Description
We investigate isopin breaking effects due to different
masses and electric charges between up and down quarks
non-perturbatively using lattice QCD+QED with
domain wall quarks. Individual up, down, and strange quark masses
are determined using $K^\pm, K^0,$ and $\pi^\pm$ meson
masses as inputs.
New challenges include calculations for the
electromagnetic (EM) correction to the decay constants,
introduction of the electric charge effect of sea quarks (full QCD+ full QED),
and the disconnected loop diagram in the $\pi^0$ propagator.
We employ QCD gauge emsembles using 2+1 flavors of domain wall fermions and
the Iwasaki gauge action. These configurations have been generated
by RBC and UKQCD collaborations.
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Primary author
Taku Izubuchi
(Brookhaven National Laboratory & RIKEN-BNL Research Center)
Co-authors
Masashi Hayakawa
(Department of Physics, Nagoya University)
Norikazu Yamada
(KEK Theory Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK) & School of High Energy Accelerator Science, The Graduate University for Advanced Studies (Sokendai),)
Ran Zhou
(Physics Department, University of Connecticut)
Shunpei Uno
(Department of Physics, Nagoya University)
Takumi Doi
(Department of Pure and Applied Sciences, University of Tsukuba)
Tom Blum
(Physics Department, University of Connecticut)
Tomomi Ishikawa
(Physics Department, University of Connecticut)
