Speaker
Mr
Atsuro Ikeda
(Osaka University)
Description
We study the transport property of charm quarks at finite temperature in
quenched lattice QCD with improved maximum entropy method (MEM).
We extend the MEM analysis to the product space of spectral functions at more
than two different momenta to take advantage of more data and the strong
correlation among Euclidean correlators with different momenta.
We find that this method drastically reduces the error of the reconstructed
images, in particular, at small energy.
We apply this method to extract the diffusion coefficient of charm quarks.
We also perform an error estimate of the result, which has not been carried
out correctly in previous analyses.
Our analysis gives finite diffusion coefficients with statistical
significance and small errors.
Our method and result on the basis of first principle calculations will shed
light on understanding on the dynamics of heavy quarks in QGP.
| On behalf of collaboration: | None |
|---|
Primary author
Mr
Atsuro Ikeda
(Osaka University)
Co-authors
Masakiyo Kitazawa
(Osaka University)
Masayuki Asakawa
(Osaka University)
