Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
Volume 15, Issue 1, Pages 57-67Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218271806007651
Keywords
gauge/gravity correspondence; extra dimensions; meson spectra; dilatons
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Meson spectra given as fluctuations of a D7-brane are studied under the background driven by the dilaton. This leads to a dual gauge theory with quark confinement due to the gauge condensate. We find that the effect of the gauge condensate on the meson spectrum is essential in order to make a realistic hadron spectrum in the non-supersymmetric case. In the supersymmetric case, however, only the spectra of the scalars are affected, but they are changed in an opposite way compared to the non-supersymmetric case.
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