Hadronic light-by-light contribution to the muon anomaly from lattice QCD with infinite volume QED at physical pion mass
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866910729101115392 |
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| author | Blum, Thomas Christ, Norman Hayakawa, Masashi Izubuchi, Taku Jin, Luchang Jung, Chulwoo Lehner, Christoph Tu, Cheng |
| author_facet | Blum, Thomas Christ, Norman Hayakawa, Masashi Izubuchi, Taku Jin, Luchang Jung, Chulwoo Lehner, Christoph Tu, Cheng |
| contents | The hadronic light-by-light scattering contribution to the muon anomalous magnetic moment, $(g-2$)/2, is computed in the infinite volume QED framework with lattice QCD. We report $a_μ^\text{HLbL}=12.47(1.15)(0.95) \times 10^{-10}$ where the first error is statistical and the second systematic. The result is mainly based on the 2+1 flavor Möbius domain wall fermion ensemble with inverse lattice spacing $a^{-1} = 1.73~\mathrm{GeV}$, lattice size $L=5.5~\mathrm{fm}$, and $m_π= 139~\mathrm{MeV}$, generated by the RBC-UKQCD collaborations. The leading systematic error of this result comes from the lattice discretization. This result is consistent with previous determinations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_04423 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Hadronic light-by-light contribution to the muon anomaly from lattice QCD with infinite volume QED at physical pion mass Blum, Thomas Christ, Norman Hayakawa, Masashi Izubuchi, Taku Jin, Luchang Jung, Chulwoo Lehner, Christoph Tu, Cheng High Energy Physics - Lattice The hadronic light-by-light scattering contribution to the muon anomalous magnetic moment, $(g-2$)/2, is computed in the infinite volume QED framework with lattice QCD. We report $a_μ^\text{HLbL}=12.47(1.15)(0.95) \times 10^{-10}$ where the first error is statistical and the second systematic. The result is mainly based on the 2+1 flavor Möbius domain wall fermion ensemble with inverse lattice spacing $a^{-1} = 1.73~\mathrm{GeV}$, lattice size $L=5.5~\mathrm{fm}$, and $m_π= 139~\mathrm{MeV}$, generated by the RBC-UKQCD collaborations. The leading systematic error of this result comes from the lattice discretization. This result is consistent with previous determinations. |
| title | Hadronic light-by-light contribution to the muon anomaly from lattice QCD with infinite volume QED at physical pion mass |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2304.04423 |