Numerical study of the Nambu-Goto string model at finite length and temperature
- Instituto de Fisica, Universidad Nacional Autonoma de Mexico, Apartado Postal 139-B, 62191 Cuernavaca, Morelos (Mexico)
We study the Nambu-Goto model numerically for a string of finite length at an arbitrary temperature. The static quark-antiquark potential is investigated and it is found that the deconfinement radius [ital r][sub dec] (the distance between quarks for which the potential vanishes) is independent of the temperature. For [tau]=[tau][sub dec] (the temperature for which the string tension vanishes), the potential becomes a constant for large [ital r], thus losing its confining'' property. This is clearly a consistent result with the interpretation of [tau][sub dec] as a deconfinement temperature. For [tau][gt][tau][sub dec], solutions to the gap equations exist which allow us to have a well-defined quark potential although only for unconfining'' strings of a certain length. The string tension at finite temperature for a string of various lengths is also calculated as well as [tau][sub dec][sup max] (the maximum temperature for which a tension exists) which might signal a first-order transition to a deconfined phase.
- OSTI ID:
- 6612922
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Vol. 47:10; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
QUARK-ANTIQUARK INTERACTIONS
POTENTIALS
STRING MODELS
NUMERICAL ANALYSIS
MONTE CARLO METHOD
QUANTUM CHROMODYNAMICS
TEMPERATURE DEPENDENCE
CALCULATION METHODS
COMPOSITE MODELS
EXTENDED PARTICLE MODEL
FIELD THEORIES
INTERACTIONS
MATHEMATICAL MODELS
MATHEMATICS
PARTICLE INTERACTIONS
PARTICLE MODELS
QUANTUM FIELD THEORY
QUARK MODEL
662240* - Models for Strong Interactions- (1992-)