Título:
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Cross sections for production of closed superstrings at high energy colliders in brane world models
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Autor/a:
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Chialva, Diego; Iengo, Roberto; Russo, J. G. (Jorge Guillermo)
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Otros autores:
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Universitat de Barcelona |
Abstract:
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In brane world string models with large extra dimensions, there are processes where fermion and antifermion (or two gluons) can annihilate producing a light particle (e.g. gluon) carrying transverse momentum and a Kaluza-Klein graviton or an excited closed string that propagates in the extra dimensions. In high energy colliders, this process gives a missing-momentum signature. We compute the total cross section for this process within the context of type II superstring theory in the presence of a D-brane. This includes all missing-energy sources for this string-theory model up to s=8M{sub s}{sup 2}, and it can be used to put new limits on the string scale M{sub s}. |
Materia(s):
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-Teoria de camps (Física) -Partícules (Física nuclear) -Models de corda -Relativitat general (Física) -Gravitació -Field theory (Physics) -Particles (Nuclear physics) -String models -General relativity (Physics) -Gravitation |
Derechos:
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(c) The American Physical Society, 2005
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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The American Physical Society
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