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Ultraviolet and infrared freedom from string amplitudes
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 aysmptotic freedom. The way string theory represents abelian gauge theories is connected wi...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1999
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/1999/10/018 http://cds.cern.ch/record/394831 |
| Sumario: | 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 aysmptotic 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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