Testing MEM with diquark and thermal meson correlation functions

When applying the maximum entropy method (MEM) to the analysis of hadron correlation functions in QCD a central issue is to understand to what extent this method can distinguish bound states, resonances and continuum contributions to spectral functions. We discuss these issues by analyzing meson and diquark correlation functions at zero temperature as well as free quark anti-quark correlators. The latter test the applicability of MEM to high temperature QCD.

Note:

6 pages, 6 figures. Contribution to the proceedings of the Conference on Strong and Electroweak Matter (SEWM 2000), Marseille, France, 14-17 June 2000; Figure 3(b) changed

talk: Marseille 2000/06/14
data analysis method
quantum chromodynamics
meson: correlation function
lattice field theory
temperature: 0
entropy
spectral representation
quark: diquark
numerical calculations

References(5)

Figures(6)

Bayesian inference and the analytic continuation of imaginary-time quantum Monte Carlo data

- Phys.Rept. 269 (1996) 133-195
•
DOI:
- 10.1016/0370-1573(95)00074-7

Hadronic spectral functions in lattice QCD

- Phys.Rev.D 60 (1999) 091503
•
e-Print:
- hep-lat/9905034
•
DOI:
- 10.1103/PhysRevD.60.091503

Spectral functions of hadrons in lattice QCD

- Nucl.Phys.B Proc.Suppl. 83 (2000) 191-196
•
e-Print:
- hep-lat/9909137
•
DOI:
- 10.1016/S0920-5632(00)91620-7

Diquark masses from lattice QCD

- Phys.Rev.D 58 (1998) 111502
•
e-Print:
- hep-lat/9804023
•
DOI:
- 10.1103/PhysRevD.58.111502

Efficient hadronic operators in lattice gauge theory

UKQCD

Collaboration

•

P. Lacock
(
- Liverpool U.
)

et al.

- Phys.Rev.D 51 (1995) 6403-6410
•
e-Print:
- hep-lat/9412079
•
DOI:
- 10.1103/PhysRevD.51.6403