Splitting of macroscopic fundamental strings in flat space and holographic hadron decays

Details Splitting of macroscopic fundamental strings in flat space and holographic hadron decays Splitting of macroscopic fundamental strings in flat space and holographic hadron decays

2007-03-30

arxiv.org/abs/hep-th/0703284v1

Mod.Phys.Lett.A22:1057-1074,2007

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 3 figures. Invited review for Modern Physics Letters A

Scientific paper

10.1142/S0217732307023626

In this review article we present the calculation of the splitting rate in flat space of a macroscopic fundamental string either intersecting at a generic angle a Dp-brane or lying on it. The result is then applied, in the context of the string/gauge theory correspondence, to the study of exclusive decay rates of large spin mesons into mesons. As examples, we discuss the cases of N=4 SYM with a small number of flavors, and of QCD-like theories in the quenched approximation. In the latter context, explicit analytic formulas are given for decay rates of mesons formed either by heavy quarks or by massless quarks.

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