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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Review of Lattice Muon g-2 HLbL Calculation

Jul 25, 2018, 10:00 AM
30m
Big Ten A (Kellogg Hotel and Conference Center)

Big Ten A

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Plenary Hadron Structure Plenary

Speaker

Dr Luchang Jin (BNL)

Description

Recent lattice QCD results for hadron light-by-light scattering (HLbL) and its contribution to muon anomalous magnetic moments (g-2) will be reviewed. There are currently more than three standard deviations between the BNL experimental result and the theoretical prediction. The Fermilab/JPARC experiments will reduce the experimental uncertainty by a factor of four. The uncertainty of theory prediction needs to be reduced to a similar level. With the recent progress in the dispersive approaches and the lattice calculations in determining the hadron vacuum polarization (HVP) contribution to muon g-2, HLbL is becoming the leading source of uncertainty in the theoretical prediction. Lattice QCD provides a systematic improvable way to calculate HLbL and a result with reliable error can be eventually obtained. In this regard, I overview the recent progress in the lattice calculations of HLbL, the current status of the calculation, and the future plans. In particular, I would discuss the method for handling the finite volume errors and the discretization errors.

Primary author

Dr Luchang Jin (BNL)

Presentation Materials