Mesons From String Theory

Details Mesons From String Theory Mesons From String Theory

2009-09-30

arxiv.org/abs/0909.5681v2

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, 4 figures. Corrected acknowledgments. To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C

Scientific paper

A brief historical synopsis of the connection between gauge theories and string theory is given. Meson configurations known as k-strings are examined from string theory via the gauge/gravity correspondence. Backgrounds dual to k-strings in both 2+1 and 3+1 are discussed. The energy of k-strings to lowest order consists of a tension term, proportional to the length, L, of the k-string, i.e., the size of the mesons in the configuration. The first quantum correction is a Coulombic 1/L correction, known as a Luscher term, plus a constant. Acquiring tensions and Luscher terms via the gauge/gravity correspondence is discussed.

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