RIKEN Lunch Seminar

"The hadronic light-by-light contribution to muon g-2 from lattice QCD"

Presented by Luchang Jin, BNL

Thursday, March 30, 2017, 12:30 pm — Building 510, Room 2-160

The current measurement of muonic g-2 disagrees with the theoretical
calculation by about 3 standard deviations. Hadronic vacuum
polarization (HVP) and hadronic light by light (HLbL) are the two
types of processes that contribute most to the theoretical
uncertainty. The current value for HLbL is still given by models. We
report our latest lattice calculation of hadronic light-by-light
contribution to muon g-2 using our recent developed moment method. The
connected diagrams and the leading disconnected diagrams are included.
The calculation is performed on a 48^3 × 96 lattice with physical pion
mass and 5.5 fm box size. We expect sizable finite volume and finite
lattice spacing corrections to the results of these calculations which
will be estimated in calculations to be carried out over the next 1-2

Hosted by: Enrico Rinaldi

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