scholarly journals Octet baryon magnetic moments from lattice QCD: Approaching experiment from a three-flavor symmetric point

2017 ◽  
Vol 95 (11) ◽  
Author(s):  
Assumpta Parreño ◽  
Martin J. Savage ◽  
Brian C. Tiburzi ◽  
Jonas Wilhelm ◽  
Emmanuel Chang ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Magnetic Moments ◽  
Octet Baryon ◽  
Symmetric Point

scholarly journals Two-nucleon S -wave interactions at the SU(3) flavor-symmetric point with mud≈msphys : A first lattice QCD calculation with the stochastic Laplacian Heaviside method

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Ben Hörz ◽  
Dean Howarth ◽  
Enrico Rinaldi ◽  
Andrew Hanlon ◽  
Chia Cheng Chang ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
S Wave ◽  
Wave Interactions ◽  
Symmetric Point

Precision description of the octet-baryon magnetic moments

1987 ◽  
Vol 36 (1) ◽  
pp. 307-309 ◽  
Author(s):  
S. K. Gupta ◽  
S. B. Khadkikar
Keyword(s):  
Magnetic Moments ◽  
Octet Baryon

scholarly journals Incorporating chiral symmetry in extrapolations of octet baryon magnetic moments

2000 ◽  
Vol 489 (1-2) ◽  
pp. 143-147 ◽  
Author(s):  
E.J Hackett-Jones ◽  
D.B Leinweber ◽  
A.W Thomas
Keyword(s):  
Chiral Symmetry ◽  
Magnetic Moments ◽  
Octet Baryon

scholarly journals Octet baryon magnetic moments in the chiral quark model with configuration mixing

1998 ◽  
Vol 57 (1) ◽  
pp. 452-464 ◽  
Author(s):  
Johan Linde ◽  
Tommy Ohlsson ◽  
Håkan Snellman
Keyword(s):  
Quark Model ◽  
Magnetic Moments ◽  
Chiral Quark Model ◽  
Octet Baryon ◽  
Configuration Mixing

scholarly journals Hadronic light-by-light contribution to $$(g-2)_\mu $$ from lattice QCD with SU(3) flavor symmetry

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
En-Hung Chao ◽  
Antoine Gérardin ◽  
Jeremy R. Green ◽  
Renwick J. Hudspith ◽  
Harvey B. Meyer
Keyword(s):  
Lattice Qcd ◽  
Size Effects ◽  
Light Quark ◽  
Finite Size ◽  
Coordinate Space ◽  
Electromagnetic Current ◽  
Flavor Symmetry ◽  
Finite Size Effects ◽  
Symmetric Point ◽  
The Continuum

AbstractWe perform a lattice QCD calculation of the hadronic light-by-light contribution to $$(g-2)_\mu $$ ( g - 2 ) μ at the SU(3) flavor-symmetric point $$m_\pi =m_K\simeq 420\,$$ m π = m K ≃ 420 MeV. The representation used is based on coordinate-space perturbation theory, with all QED elements of the relevant Feynman diagrams implemented in continuum, infinite Euclidean space. As a consequence, the effect of using finite lattices to evaluate the QCD four-point function of the electromagnetic current is exponentially suppressed. Thanks to the SU(3)-flavor symmetry, only two topologies of diagrams contribute, the fully connected and the leading disconnected. We show the equivalence in the continuum limit of two methods of computing the connected contribution, and introduce a sparse-grid technique for computing the disconnected contribution. Thanks to our previous calculation of the pion transition form factor, we are able to correct for the residual finite-size effects and extend the tail of the integrand. We test our understanding of finite-size effects by using gauge ensembles differing only by their volume. After a continuum extrapolation based on four lattice spacings, we obtain $$a_\mu ^{\mathrm{hlbl}}= (65.4\pm 4.9 \pm 6.6)\times 10^{-11}$$ a μ hlbl = ( 65.4 ± 4.9 ± 6.6 ) × 10 - 11 , where the first error results from the uncertainties on the individual gauge ensembles and the second is the systematic error of the continuum extrapolation. Finally, we estimate how this value will change as the light-quark masses are lowered to their physical values.

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