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  A Diffusion Model for SU(N) QCD Screening

Arcioni, G., de Haro, S., & Gao, P. (2006). A Diffusion Model for SU(N) QCD Screening. Physical Review D, 73(7): 074508.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4B72-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4B73-2
Genre: Journal Article

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0511213.pdf (Preprint), 284KB
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 Creators:
Arcioni, Giovanni, Author
de Haro, Sebastian1, Author
Gao, Peng, Author
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24014              

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 Abstract: We consider a phenomenological model for the dynamics of Wilson loops in pure SU(N) QCD where the expectation value of the loop is the average over an interacting diffusion process on the group manifold SU(N). The interaction is provided by an arbitrary potential that generates the transition from the Casimir scaling regime into the screening phase of the four-dimensional gauge theory. The potential is required to respect the underlying center symmetry of the gauge theory, and this predicts screening of arbitrary SU(N) representations to the corresponding antisymmetric representations of the same N-ality. The stable strings before the onset of screening are therefore the k-strings. In the process we find a non-trivial but solvable modification of the QCD_2 matrix model that involves an arbitrary potential.

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Language(s): eng - English
 Dates: 2006
 Publication Status: Published in print
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 Identifiers: eDoc: 246583
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 73 (7) Sequence Number: 074508 Start / End Page: - Identifier: -