WEIGHTED COMPOSITION OPERATORS ON H∞ ∩ o

Ohno, Shûichi

doi:10.1017/s0017089514000469

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2018

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“…Therefore, very fine lattices as well as good statistics are needed to extract structures of the spectral function. So far, there were several attempts using very fine quenched lattices, though no continuum extrapolation has been realized [13][14][15]. In [16] a continuum extrapolation for the heavy quark momentum diffusion coefficient based on a color electric correlator has been carried out.…”

Section: Introductionmentioning

confidence: 99%

Continuum extrapolation of quarkonium correlators at non-zero temperature

et al. 2018

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In the investigation of in-medium modifications of quarkonia and for determining heavy quark diffusion coefficients, correlation functions play a crucial role. For the first time we perform a continuum extrapolation of charmonium and bottomonium correlators in the vector channel based on non-perturbatively clover-improved Wilson fermions in quenched lattice QCD. Calculations were done at 4 different lattice spacings, spatial extents between 96 and 192, aspect ratio from 1/6 to 1/2, for 5 temperatures between T/T c = 0.75 and T/T c = 2.2. We interpolate between different quark masses to match to the same vector meson mass over different lattice setups. Afterwards we extrapolate the renormalized correlators to the continuum. While we find a strong temperature dependence for charmonium, bottomonium states are only slightly affected at higher temperatures.Speaker,

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Section: Introductionmentioning

confidence: 99%