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(s)(2), and it can be used to put new limits on the string scale M-s.

Cross sections for production of closed superstrings at high energy colliders in brane world models / Chialva, D.; Iengo, R.; Russo, J. G.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 71:10(2005), pp. 1-11. [10.1103/PhysRevD.71.106009]

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

Iengo, R.;
2005-01-01

Abstract

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(s)(2), and it can be used to put new limits on the string scale M-s.
2005
71
10
1
11
106009
https://arxiv.org/abs/hep-ph/0503125
Chialva, D.; Iengo, R.; Russo, J. G.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/30120
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