Hadronic vacuum polarization in finite volume using NNLO ChPT
C Aubin, T Blum, M Golterman, C Jung, S Peris, C Tu
TL;DR
This paper calculates the finite volume effects on the leading hadronic contribution to muon g-2 using NNLO Chiral Perturbation Theory with lattice QCD data.
Contribution
It provides a detailed NNLO ChPT analysis of finite volume effects on hadronic vacuum polarization in lattice QCD simulations.
Findings
Finite volume effects are quantified up to NNLO in ChPT.
Results help improve precision in muon g-2 calculations.
Uses 2+1+1 flavor HISQ lattice ensembles.
Abstract
We present results for the leading hadronic contribution to the muon from configurations with 2+1+1 flavors of HISQ quarks. The ensembles have been generated by the MILC collaboration at three lattice spacings. Using the time-momentum representation of the electromagnetic current correlator, we calculate the finite volume effects up to next-to-next-to-leading-order in Chiral Perturbation Theory.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research