نتایج جستجو برای: دستگاه dwf
تعداد نتایج: 31181 فیلتر نتایج به سال:
We report RBC and RBC/UKQCD lattice QCD numerical calculations of nucleon electroweak matrix elements with dynamical domain-wall fermions (DWF) quarks. The first, RBC, set of dynamical DWF ensembles employs two degenerate flavors of DWF quarks and the DBW2 gauge action. Three sea quark mass values of 0.04, 0.03 and 0.02 in lattice units are used with about 200 gauge configurations each. The lat...
The domain wall fermions (DWF) formalism[1][2] uses an extra space-time dimension to separate the chiral limit from the continuum limit. In this paper, we report a study of the hadron spectrum obtained from both quenched and dynamical DWF. Our conventions are: mf is the 4-d bare quark mass that explicitly mixes the two chiralities on the domain walls, Ls is the extent of lattice in the fifth di...
Deep water formation (DWF) in the North Western Mediterranean (NWMed) is a key feature of overturning circulation. DWF changes under global warming may have an impact on biogeochemistry and marine ecosystem. Here we analyze deep convection Gulf Lions (GoL) changing climate using regional system model with horizontal resolution high enough to represent DWF. We find that RCP8.5 scenario NWMed col...
Using domain wall fermions, we estimate BK (µ ≈ 2 GeV) = 0.628(47) in quenched QCD which is consistent with previous calculations. At 6/g 2 = 6.0 and 5.85 we find the ratio fK /mρ in agreement with the experimental value, within errors. These results support expectations that O(a) errors are exponentially suppressed in low energy (E ≪ a −1) observables, and indicate that domain wall fermions ha...
Madagascar’s vast oceanic space hosts distant-water fishing (DWF) fleets from Taiwan, Japan, South Korea, Spain, France and others since the 1960s, making DWF a substantial component of blue economy. Considering this extensive experience managing activities for more than 60 years, paper explores existing policy frameworks challenges regarding DWF. The results show while it is well equipped lega...
The dynamics of the North Atlantic subpolar gyre (SPG) are assessed under present and glacial boundary conditions by investigating the SPG sensitivity to surface wind-stress changes in a coupled climate model. To this end, the gyre transport is decomposed in Ekman, thermohaline, and bottom transports. Surface wind-stress variations are found to play an important indirect role in SPG dynamics th...
Domain wall fermion (DWF)[1,2] is a promising tool to calculate hadronic quantities where chiral symmetry is important. Precise calculation of kaon mixing parameter BK is one success of this formulation[3]. More challenging calculations[4,5] of kaon weak matrix element for ′/ show a first reliable determination within lowest order chiral perturbation theory. Attempt to calculate nucleon matrix ...
Analysis of knee joint vibration (VAG) signals can provide quantitative indices for detection of knee joint pathology at an early stage. In addition to the statistical features developed in the related previous studies, we extracted two separable features, that is, the number of atoms derived from the wavelet matching pursuit decomposition and the number of significant signal turns detected wit...
Domain wall fermions (DWF) [1] have been successfully used by the RBC Collaboration for several applications [2]. In the baryon sector we had reported that DWF with Wilson gauge action in the quenched approximation can reproduce the first negative-parity excited state of nucleon [3] which defied theoretical attempts for a long time. Here we report the current status of our calculations on the n...
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