Heavy quark momentum diffusion from the lattice using gradient flow

Altenkort L, Eller AM, Kaczmarek O, Mazur L, Moore GD, Shu H-T (2021)
Physical Review D 103(1): 014511.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We apply the gradient flow on a color-electric two-point function that encodes the heavy quark momentum diffusion coefficient. The simulations are done on fine isotropic lattices in the quenched approximation at 1.5T(c). The continuum extrapolation is performed at fixed flow time followed by a second extrapolation to zero flow time. Perturbative calculations of this correlation function under Wilson flow are used to enhance the extrapolations of the nonperturbative lattice correlator. The final estimate for the continuum correlator at zero flow time largely agrees with one obtained from a previous study using the multilevel algorithm. We perform a spectral reconstruction based on perturbative model fits to estimate the heavy quark momentum diffusion coefficient. The approach we present here yields high-precision data for the correlator and is also applicable for actions with dynamical fermions.
Erscheinungsjahr
2021
Zeitschriftentitel
Physical Review D
Band
103
Ausgabe
1
Art.-Nr.
014511
ISSN
2470-0010
Page URI
https://pub.uni-bielefeld.de/record/2949916

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Altenkort L, Eller AM, Kaczmarek O, Mazur L, Moore GD, Shu H-T. Heavy quark momentum diffusion from the lattice using gradient flow. Physical Review D. 2021;103(1): 014511.
Altenkort, L., Eller, A. M., Kaczmarek, O., Mazur, L., Moore, G. D., & Shu, H. - T. (2021). Heavy quark momentum diffusion from the lattice using gradient flow. Physical Review D, 103(1), 014511. https://doi.org/10.1103/PhysRevD.103.014511
Altenkort, L., Eller, A. M., Kaczmarek, O., Mazur, L., Moore, G. D., and Shu, H. - T. (2021). Heavy quark momentum diffusion from the lattice using gradient flow. Physical Review D 103:014511.
Altenkort, L., et al., 2021. Heavy quark momentum diffusion from the lattice using gradient flow. Physical Review D, 103(1): 014511.
L. Altenkort, et al., “Heavy quark momentum diffusion from the lattice using gradient flow”, Physical Review D, vol. 103, 2021, : 014511.
Altenkort, L., Eller, A.M., Kaczmarek, O., Mazur, L., Moore, G.D., Shu, H.-T.: Heavy quark momentum diffusion from the lattice using gradient flow. Physical Review D. 103, : 014511 (2021).
Altenkort, Luis, Eller, Alexander M., Kaczmarek, Olaf, Mazur, Lukas, Moore, Guy D., and Shu, Hai-Tao. “Heavy quark momentum diffusion from the lattice using gradient flow”. Physical Review D 103.1 (2021): 014511.

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arXiv: 2009.13553

Inspire: 1820088

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