Meson spectroscopy from holomorphic probes on the warped deformed conifold

Abstract

We study D7 brane probes holomorphically embedded in the Klebanov-Strassler model. Analyzing the κ-symmetry condition for D7 branes wrapping a 4-cycle of a deformed conifold we find configurations that do not break N = 1 supersymmetry of the background. We compute the fluctuations of the probe around one of these configurations and obtain the spectrum of vector and scalar flavored mesons in the dual gauge theory. The spectrum is discrete and exhibits a mass gap.

Inflation and String Theory

“…In fact, to date only a single explicit embedding is known in which inflation can occur [218,637]. This is the so-called Kuperstein embedding [639] …”

Mesons in gauge/gravity duals

“…The meson spectrum was computed and displays a mass gap for the vector, scalar and pseudo-scalar mesons (see also [112,113]). A more complete set of probe embeddings were found in [114].…”

Update of D3/D7-brane inflation on

“…To compare this with the torus case, where one has a stack of D7-branes, filling the z 2 and z 3 directions and being located at the complex point µ inside the first (complex) direction, one should take an embedding function of the (Kuperstein) form [75]:…”