Revisiting glueball wave functions at zero and finite temperature
| Autor: | Mushtaq Loan |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Physics
Physics and Astronomy (miscellaneous) Glueball High Energy Physics::Lattice High Energy Physics - Lattice (hep-lat) Scalar (mathematics) Monte Carlo method Extrapolation FOS: Physical sciences Classical XY model Universality (dynamical systems) High Energy Physics - Lattice Lattice (order) High Energy Physics::Experiment Wave function Engineering (miscellaneous) Mathematical physics |
| Zdroj: | The European Physical Journal C. 54:475-481 |
| ISSN: | 1434-6052 1434-6044 |
| DOI: | 10.1140/epjc/s10052-008-0536-3 |
| Popis: | We study the sizes and thermal properties of glueballs in a three dimensional compact Abelian gauge model on improved lattice. We predict the radii of $\sim 0.60$ and $\sim 1.12$ in the units of string tension, or $\sim 0.28$ and $\sim 0.52$ fm, for the scalar and tensor glueballs, respectively. We perform a well controlled extrapolation of the radii to the continuum limit and observe that our results agree with the predicted values. Using Monte Carlo simulations, we extract the pole-mass of the lowest scalar and tensor glueballs from the temporal correlators at finite temperature. We see a clear evidence of the deconfined phase, and the transition appears to be similar to that of the two-dimensional XY model as expected from universality arguments. Our results show no significant changes in the glueball wave functions and masses in the deconfined phase. Comment: 8 pages, 10 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|