تقرير
Light-quark connected intermediate-window contributions to the muon $g-2$ hadronic vacuum polarization from lattice QCD
| العنوان: | Light-quark connected intermediate-window contributions to the muon $g-2$ hadronic vacuum polarization from lattice QCD |
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| المؤلفون: | Bazavov, Alexei, Davies, Christine, DeTar, Carleton, El-Khadra, Aida X., Gámiz, Elvira, Gottlieb, Steven, Jay, William I., Jeong, Hwancheol, Kronfeld, Andreas S., Lahert, Shaun, Lepage, G. Peter, Lynch, Michael, Lytle, Andrew T., Mackenzie, Paul B., McNeile, Craig, Neil, Ethan T., Peterson, Curtis T., Ray, Gaurav, Simone, James N., Van de Water, Ruth S., Vaquero, Alejandro |
| المصدر: | Phys. Rev. D 107, 114514 (2023) |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Lattice High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Lattice, High Energy Physics - Phenomenology |
| الوصف: | We present a lattice-QCD calculation of the light-quark connected contribution to window observables associated with the leading-order hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon, $a_\mu^{\mathrm{HVP,LO}}$. We employ the MILC Collaboration's isospin-symmetric QCD gauge-field ensembles, which contain four flavors of dynamical highly-improved-staggered quarks with four lattice spacings between $a\approx 0.06$-$0.15$~fm and close-to-physical quark masses. We consider several effective-field-theory-based schemes for finite-volume and other lattice corrections and combine the results via Bayesian model averaging to obtain robust estimates of the associated systematic uncertainties. After unblinding, our final results for the intermediate and ``W2'' windows are $a^{ll,{\mathrm W}}_{\mu}(\mathrm{conn.})=206.6(1.0) \times 10^{-10}$ and $a^{ll,\mathrm {W2}}_{\mu}(\mathrm{conn.}) = 100.7(3.2)\times 10^{-10}$, respectively. Comment: v3: Updated to reflect published version, which includes updates to the text in Sections II.B, III.C,D,E. Numerical results unchanged |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevD.107.114514 |
| URL الوصول: | http://arxiv.org/abs/2301.08274 |
| رقم الأكسشن: | edsarx.2301.08274 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevD.107.114514 |
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