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ID: 293678.0, MPI für Gravitationsphysik / Quantum Gravity and Unified Theories
Glueballs vs. Gluinoballs: Fluctuation Spectra in Non-AdS/Non-CFT
Authors:Berg, Marcus; Haack, Michael; Mück, Wolfgang
Date of Publication (YYYY-MM-DD):2008-01
Title of Journal:Nuclear Physics B
Volume:789
Issue / Number:1-2
Start Page:1
End Page:44
Review Status:not specified
Audience:Not Specified
Abstract / Description:Building on earlier results on holographic bulk dynamics in confining gauge theories, we compute the spin-0 and spin-2 spectra of the Maldacena–Nuñez and Klebanov–Strassler theories, that have non-singular supergravity duals. We construct and apply a numerical recipe for computing mass spectra from certain determinants. In the Klebanov–Strassler case, the spectra of states containing the glueball and gluinoball are universal and quadratic in the supergravity approximation, i.e., their mass-squareds depend on consecutive number as m2not, vert, similarn2 for large n, with a universal proportionality constant. The hardwall approximation appears to work poorly when compared to the unique spectra we find in the full theory with a smooth cap-off in the infrared.
External Publication Status:published
Document Type:Article
Communicated by:Hermann Nicolai
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
Identifiers:ISSN:0550-3213
DOI:10.1016/j.nuclphysb.2007.07.012
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