Holographic decays of large-spin mesons
arXiv:hep-th/0511044 · doi:10.1088/1126-6708/2006/02/009
Abstract
We study the decay process of large-spin mesons in the context of the gauge/string duality, using generic properties of confining backgrounds and systems with flavour branes. In the string picture, meson decay corresponds to the quantum-mechanical process in which a string rotating on the IR "wall" fluctuates, touches a flavour brane and splits into two smaller strings. This process automatically encodes flavour conservation as well as the Zweig rule. We show that the decay width computed in the string picture is in remarkable agreement with the decay width obtained using the phenomenological Lund model.
40 pages, 16 figures; v2: some clarifications added, typos corrected; v3: references added
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