Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-12-28
JHEP0806:070,2008
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX, 29 pages, 4 eps figures
Scientific paper
10.1088/1126-6708/2008/06/070
As shown in arXiv:hep-th/0405282, the warped deformed conifold has two bosonic massless modes, a pseudoscalar and a scalar, that are dual to the phase and the modulus of the baryonic condensates in the cascading gauge theory. We reconsider the scalar mode sector, mixing fluctuations of the NS-NS 2-form and the metric, and include non-zero 4-d momentum $k_\mu$. The resulting pair of coupled equations produce a discrete spectrum of $m_4^2=- k_\mu^2$ which is interpreted as the spectrum of $J^{PC}= 0^{+-}$ glueballs in the gauge theory. Similarly, we derive the spectrum of certain pseudoscalar glueballs with $J^{PC}= 0^{--}$, which originate from the decoupled fluctuations of the RR 2-form. We argue that each of the massive scalar or pseudoscalar modes we find belongs to a 4-d massive axial vector or vector supermultiplet. We also discuss our results in the context of a finite length throat embedded into a type IIB flux compactification.
Benna Marcus K.
Dymarsky Anatoly
Klebanov Igor R.
Solovyov Alexander
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