An update on the HVP contribution to $g_μ{-}2$ in isoQCD from ETMC
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arXiv
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866908862548803584 |
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| author | Bacchio, Simone De Santis, Alessandro Evangelista, Antonio Frezzotti, Roberto Gagliardi, Giuseppe Garofalo, Marco Maio, Lorenzo Margari, Francesca Pittler, Ferenc Romiti, Simone |
| author_facet | Bacchio, Simone De Santis, Alessandro Evangelista, Antonio Frezzotti, Roberto Gagliardi, Giuseppe Garofalo, Marco Maio, Lorenzo Margari, Francesca Pittler, Ferenc Romiti, Simone |
| contents | We present an update on the determination of the leading-order hadronic vacuum polarisation contribution to the muon anomalous magnetic moment in isospin-symmetric QCD by the Extended Twisted Mass Collaboration. The calculation is based on five $N_f = 2+1+1$ gauge ensembles generated with Wilson-clover twisted-mass quarks at maximal-twist and near-physical pion masses, spanning four lattice spacings and two volumes. For the dominant quark-connected contributions, we employ two distinct valence-quark regularisations and present results for both the isovector and isoscalar components. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2603_03120 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | An update on the HVP contribution to $g_μ{-}2$ in isoQCD from ETMC Bacchio, Simone De Santis, Alessandro Evangelista, Antonio Frezzotti, Roberto Gagliardi, Giuseppe Garofalo, Marco Maio, Lorenzo Margari, Francesca Pittler, Ferenc Romiti, Simone High Energy Physics - Lattice High Energy Physics - Phenomenology We present an update on the determination of the leading-order hadronic vacuum polarisation contribution to the muon anomalous magnetic moment in isospin-symmetric QCD by the Extended Twisted Mass Collaboration. The calculation is based on five $N_f = 2+1+1$ gauge ensembles generated with Wilson-clover twisted-mass quarks at maximal-twist and near-physical pion masses, spanning four lattice spacings and two volumes. For the dominant quark-connected contributions, we employ two distinct valence-quark regularisations and present results for both the isovector and isoscalar components. |
| title | An update on the HVP contribution to $g_μ{-}2$ in isoQCD from ETMC |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2603.03120 |