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arXiv · 1810.05880

HVP contribution of the light quarks to the muon $(g - 2)$ including isospin-breaking corrections with Twisted-Mass fermions

Davide Giusti·Vittorio Lubicz·Guido Martinelli·Francesco Sanfilippo·Silvano Simula·Cecilia Tarantino
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Abstract

We present a preliminary lattice calculation of the leading-order electromagnetic and strong isospin-breaking corrections to the Hadronic Vacuum Polarization (HVP) contribution of the light quarks to the anomalous magnetic moment of the muon. The results are obtained in the quenched-$QED$ approximation using the $QCD$ gauge configurations generated by the European Twisted Mass Collaboration (ETMC) with $N_f = 2 + 1 + 1$ dynamical quarks, at three values of the lattice spacing varying from $0.089$ to $0.062 ~ \mbox{fm}$, at several lattice volumes and with pion masses in the range $M_π\simeq 220 ÷490 ~ \mbox{MeV}$.

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Davide Giusti, Vittorio Lubicz, Guido Martinelli, Francesco Sanfilippo, Silvano Simula, Cecilia Tarantino. 2018-10-13. HVP contribution of the light quarks to the muon $(g - 2)$ including isospin-breaking corrections with Twisted-Mass fermions. https://arxiv.org/abs/1810.05880

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