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Can we use hadronic tau decay for V_us determination
TLDR
In this paper, it was shown that the discrepancy in pion spectral functions extracted from positron-electron annihilation and tau decay leads to different predictions for the muon anomalous magnetic moment.Abstract:
It is known that the discrepancy in pion spectral functions extracted from positron-electron annihilation and tau decay leads to different predictions for the muon anomalous magnetic moment. We will show that this discrepancy effects also the extraction of the Cabibbo angle from the hadronic tau decays. The corrections to the tau branching fractions, corresponding to the presence of new centi-weak tensor interactions, allow us to extract the Cabibbo angle from tau decays in agreement with its other precision determinations. Thus a more precise value of |V_us|=0.2246 +/- 0.0012 is obtained and as a consequence f(0)=0.9645 +/- 0.0055 and F_K/F_pi=1.196 +/- 0.007.read more
Citations
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Proceedings ArticleDOI
Application of chiral perturbation theory to 2+1 flavor lattice QCD with O(a)-improved Wilson quarks
TL;DR: In this article, the authors apply chiral perturbation theory to the pseudoscalar meson mass and decay constant data obtained in the PACS-CS Project toward 2+1 flavor lattice QCD simulations with the O(a)-improved Wilson quarks.
Proceedings ArticleDOI
Update on the physics of light pseudoscalar mesons
TL;DR: In this article, the smallest lattice spacing was shown to be a ≈ 0.15 fm with several values of the light quark mass down to one-tenth of the strange quark masses.
References
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Journal ArticleDOI
High-Precision Determination of the π , K , D , and D s Decay Constants from Lattice QCD
TL;DR: In this article, the decay constants of lattice lattice QCD with 2% errors were determined, which is 4 times better than experiment and previous theory: (1) The decay constants were determined by using a highly improved quark discretization on MILC gluon fields.
Journal ArticleDOI
Improved calculation of the isospin-symmetry-breaking corrections to superallowed Fermi β decay
I. S. Towner,J.C. Hardy +1 more
TL;DR: In this article, the authors report new shell-model calculations of the isospin-symmetry-breaking correction of nuclear decay to superallowed nuclear decay, which leads to a lower average of the top-row elements of the Cabibbo-Kobayashi-Maskawa matrix.
Journal ArticleDOI
V(us) and m(s) from hadronic tau decays.
TL;DR: In this article, the OPAL Collaboration was used to determine the moments of the invariant mass distribution of the hadronic $\ensuremath{tau}$ decays into strange particles by the ODE Collaboration.
Journal ArticleDOI
Determination of light quark masses from the electromagnetic splitting of pseudoscalar meson masses computed with two flavors of domain wall fermions
TL;DR: In this article, the meson masses are calculated on lattice QCD configurations generated by the RBC Collaboration for two flavors of dynamical domain-wall fermions, which are combined with QED configurations generated via quenched noncompact lattice quads.
Journal ArticleDOI
Light quark masses and pseudoscalar decay constants from Nf=2 Lattice QCD with twisted mass fermions
Benoit Blossier,Ph. Boucaud,Petros Dimopoulos,Federico Farchioni,R. Frezzotti,V. Gimenez,Gregorio Herdoiza,Karl Jansen,V. Lubicz,Chris Michael,D. Palao,Mauro Papinutto,A. Shindler,Silvano Simula,Cecilia Tarantino,Carsten Urbach,Urs Wenger +16 more
TL;DR: In this article, the authors present the results of a lattice QCD calculation of the average up-down and strange quark masses and of the light meson pseudoscalar decay constants with Nf=2 dynamical fermions.
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