Abstract
We consider two very different models of the flux tube linking two heavy
quarks: a string linking the matter fields and a Coulombic description of two
separately gauge invariant charges. We compare how close they are to the
unknown true ground state in compact U(1) and the SU(2) Higgs model.
Simulations in compact U(1) show that the string description is better in the
confined phase but the Coulombic description is best in the deconfined phase;
the last result is shown to agree with analytical calculations. Surprisingly in
the non-abelian theory the Coulombic description is better in both the Higgs
and confined phases. This indicates a significant difference in the width of
the flux tubes in the two theories.
| Original language | English |
|---|---|
| Number of pages | 0 |
| Journal | Phys.Rev.D |
| Volume | 77 |
| Issue number | 0 |
| Publication status | Published - 21 Sept 2007 |
Keywords
- hep-lat
- hep-ph
- hep-th