The mixing of two-pion and vector-meson states using staggered fermions

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Main Authors: Frech, Fabian J., Stokes, Finn M., Szabo, Kalman K., Toth, Balint C.
Format: Preprint
Published: 2023
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author Frech, Fabian J.
Stokes, Finn M.
Szabo, Kalman K.
Toth, Balint C.
author_facet Frech, Fabian J.
Stokes, Finn M.
Szabo, Kalman K.
Toth, Balint C.
contents In this study we employ staggered fermions to calculate the two-pion taste singlet states at rest. Leveraging the Clebsch-Gordan coefficients of the symmetry group associated with staggered fermions, we effectively compute the $ππ$ contributions to the resting $ρ$-meson correlator. To discern the distinct energy states involved, we adopt a generalized eigenvalue problem-solving approach. This work will provide insight into the important role played by the two-pion contribution to the anomalous magnetic moment of the muon. In this paper we present our group theoretic considerations and preliminary results on the contribution of two-pion states to the rho meson correlation function.
format Preprint
id arxiv_https___arxiv_org_abs_2401_00514
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle The mixing of two-pion and vector-meson states using staggered fermions
Frech, Fabian J.
Stokes, Finn M.
Szabo, Kalman K.
Toth, Balint C.
High Energy Physics - Lattice
In this study we employ staggered fermions to calculate the two-pion taste singlet states at rest. Leveraging the Clebsch-Gordan coefficients of the symmetry group associated with staggered fermions, we effectively compute the $ππ$ contributions to the resting $ρ$-meson correlator. To discern the distinct energy states involved, we adopt a generalized eigenvalue problem-solving approach. This work will provide insight into the important role played by the two-pion contribution to the anomalous magnetic moment of the muon. In this paper we present our group theoretic considerations and preliminary results on the contribution of two-pion states to the rho meson correlation function.
title The mixing of two-pion and vector-meson states using staggered fermions
topic High Energy Physics - Lattice
url https://arxiv.org/abs/2401.00514