String splitting and strong coupling meson decay.
We study the decay of high spin mesons using the gauge-string theory correspondence. The rate of the process is calculated by studying the splitting of a macroscopic string intersecting a D-brane. The result is applied to the decay of mesons in N=4 super Yang-Mills theory with a small number of flavors and in a gravity dual of large N QCD. In QCD the decay of high spin mesons is found to be heavily suppressed in the regime of validity of the supergravity description.
Cotrone
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AL
Departament Estructura i Constituents de la Materia, Universitat de Barcelona and IFAE, Diagonal 647, E-08028 Barcelona, Spain.
Martucci
L
L
Troost
W
W