Jul 4 – 11, 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Holographic calculation of hadronic contributions to muon g-2

Jul 5, 2012, 10:00 AM
Room 218 (Melbourne Convention and Exhibition Centre)

Room 218

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 12. Formal Theory Developments TR 12 - Formal Theory Development & TR 1 - The Standard Model


Dr Doyoun Kim (Monash University (AU))


We have performed a holographic calculation of the hadronic contributions to the anomalous magnetic moment of the muon, using the gauge/gravity duality. We compute the leading order hadronic (HLO) contribution to the anomalous magnetic moment of muon, amu(HLO), and find amu(HLO) =470.5 x 10^{-10} in AdS/QCD with two light flavors, which is compared with the currently revised BABAR data estimated from e^+ e^- -> pi^+ pi^- events, amu(HLO)[pipi]=(514.1 +- 3.8) x 10^{-10}. Calculating the light-by-light contribution, both 5D SU(2) and U(3) flavor gauge symmetries are considered for the neutral pion, eta and eta' contributions to the hadronic corrections. We find the total light-by-light contributions of pseudo scalars to the muon anomalous magnetic moment, a_mu=10.7 x 10^(-10), which is consistent with previous estimates, based on other approaches.

Primary authors

Dr Doyoun Kim (Monash University (AU)) deog-ki hong (pusan national university)

Presentation materials