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Article overview
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Heavy quark diffusion coefficient with gradient flow | Nora Brambilla
; Viljami Leino
; Julian Mayer-Steudte
; Peter Petreczky
; | Date: |
6 Jun 2022 | Abstract: | We calculate chromo-electric and chromo-magnetic correlators in quenched QCD
at $1.5T_c$ and $10^4 T_c$ with the aim to estimate the heavy quark diffusion
coefficient at leading order in the inverse heavy quark mass expansion,
$kappa_E$, as well as the coefficient of first mass suppressed correction,
$kappa_B$. We use gradient flow for noise reduction. At $1.5T_c$ we obtain:
$1.70 le kappa_E/T^3 le 3.12$ and $1.23< kappa_B/T^3 < 2.74$. The latter
implies that the mass suppressed effects in the heavy quark diffusion
coefficient are 20% for bottom quarks and 34% for charm quark at this
temperature. | Source: | arXiv, 2206.02861 | Other source: | [GID 2259988] 2212.10941 | Services: | Forum | Review | PDF | Favorites |
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