Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-07-17
JHEP0409:057,2004
Physics
High Energy Physics
High Energy Physics - Theory
30 pages; V2: minor corrections; V3: section 3 corrected and misprints corrected to match version published in JHEP
Scientific paper
10.1088/1126-6708/2004/09/057
We obtain an analytic solution for an axionic non-supersymmetric deformation of the warped deformed conifold. This allows us to study D-strings in the infrared limit of non-supersymmetric deformations of the Klebanov-Strassler background. They are interpreted as axionic strings in the dual field theory. Following the arguments of [hep-th/0405282], the axion is a massless pseudo-scalar glueball which is present in the supergravity fluctuation spectrum and it is interpreted as the Goldstone boson of the spontaneously broken U(1) baryon number symmetry, being the gauge theory on the baryonic branch. Besides, we briefly discuss about the Pando Zayas-Tseytlin solution where the SU(2) \times SU(2) global symmetry is spontaneously broken. This background has been conjectured to be on the mesonic branch of the gauge theory.
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