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arXiv · hep-th/9907205

Ultraviolet and Infrared freedom from string amplitudes

Enrique Alvarez·Cesar Gomez
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Abstract

The infinite tension limit of string amplitudes is examined with some care, identifying the part responsible of diamagnetic behaviour as well as a peculiar paramagnetic {\em tachyon magnifying} responsible of asymptotic freedom. The way string theory represents abelian gauge theories is connected with the non-planar reggeon/pomeron amplitude and a nontrivial beta function is found in the low energy limit of a single D-brane.

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Enrique Alvarez, Cesar Gomez. 1999-07-30. Ultraviolet and Infrared freedom from string amplitudes. https://doi.org/10.1088/1126-6708%2F1999%2F10%2F018

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