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Title: The long-distance behaviour of the vector-vector correlator from pion-pion scattering
We present the estimation of the long distance behaviour of the vector-vector correlator computed on a lattice QCD ensemble generated with 2 + 1 flavour physical Wilson clover quarks. The long distance regime of the correlator is dominated by multi-hadronic scattering states. We reconstruct the correlator in this regime using the pion-pion scattering states in the 𝐼 = 1 channel. The vector-vector correlator appears in the integrand to estimate the hadronic vacuum polarization contributions to the anomalous magnetic moment of the muon. Therefore, an improved estimation of the correlator will help resolve the tension between (𝑔 − 2)𝜇 experiment and theory.  more » « less
Award ID(s):
2209167
PAR ID:
10406262
Author(s) / Creator(s):
; ; ; ; ;
Date Published:
Journal Name:
39th International Symposium on Lattice Field Theory
Volume:
LATTICE2022
Page Range / eLocation ID:
073
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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