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Cross sections for production of closed superstrings at high energy colliders in brane world models

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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}.

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CHIALVA, Diego, IENGO, Roberto, RUSSO, J. g. (jorge guillermo). Cross sections for production of closed superstrings at high energy colliders in brane world models. _Physical Review D_. 2005. Vol. 71, núm. 10, pàgs. 106009-1-106009-11. [consulta: 25 de febrer de 2026]. ISSN: 0556-2821. [Disponible a: https://hdl.handle.net/2445/12484]

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