Using holographic QCD based on D4-branes and D8-anti-D8-branes, we have computed couplings of glueballs to light mesons. We describe glueball decay by explicitly calculating its decay widths and branching ratios. Interestingly, while glueballs remain less well understood both theoretically and experimentally, our results are found to be consistent with the experimental data for the scalar glueb...

In this work, we first derive the corrections to instanton configuration of flavored gauge field in D4--D8 model with generic flavor numbers. Then, as on D8-branes represents equivalently baryon model, keeping our hand, systemically study spectrum baryon, heavy-light or meson and find it is possible fit experimental data model. We also briefly outline how include interaction glueball correction...

The D8 jet transport configuration is presented. Focus is on the aerodynamic characteristics of its distinguishing features: the wide “double-bubble” fuselage with beneficial pitching moment and carryover lift characteristics, the nearly-unswept wing and reduced cruise Mach number, and the boundary layer ingesting rear engine installation together with the twin “pi-tail” configuration. The meri...

A theoretical analysis of a series imidazole-based Y-shaped chromophores, D1–D8, is performed in order to investigate their non(linear) optical, fluorescence, and charge-transport properties. The calculations have been carried out employing DFT TD-DFT methods at CAM-B3LYP M06-2X levels theory. FMO reveals that ground state, the highest occupied molecular orbital localized on 4,5-dimethylanilino...

Starting from an already known solution in the literature, we study dynamical cobordism induced by backreaction of a non-supersymmetric, positive tension domain wall string theory. This could e.g. be non-BPS D8-brane type I or $\overline{D8}/O8$ stack non-supersymmetric IIA orientifold. The singularities which typically appear indicate either inherent inconsistency this background required pres...

We consider a D4 − D8 − D8 brane construction which gives rise to a large N QCD at sufficiently small energies. Using the gravity dual of this system, we study chiral phase transition at finite chemical potential and temperature and find a line of first order phase transitions in the phase plane. We compute the spectral function and the photon emission rate. The trace of the spectral function i...