Application of effective field theory to finitevolume effects in a_{μ}^{HVP}
Abstract
One of the more important systematic effects affecting lattice computations of the hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon, a_{μ}^{HVP}, is the distortion due to a finite spatial volume. In order to reach subpercent precision, these effects need to be reliably estimated and corrected for, and one of the methods that has been employed for doing this is finitevolume chiral perturbation theory. In this paper, we argue that finitevolume corrections to a_{μ}^{HVP} can, in principle, be calculated at any given order in chiral perturbation theory. More precisely, once all lowenergy constants needed to define the effective field theory representation of a_{μ}^{HVP} in infinite volume are known to a given order, also the finitevolume corrections can be predicted to that order in the chiral expansion.
 Publication:

Physical Review D
 Pub Date:
 November 2020
 DOI:
 10.1103/PhysRevD.102.094511
 arXiv:
 arXiv:2008.03809
 Bibcode:
 2020PhRvD.102i4511A
 Keywords:

 High Energy Physics  Lattice;
 High Energy Physics  Phenomenology
 EPrint:
 33 pages, 3 figures