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Searches for hyperbolic extra dimensions at the LHC
KTH, School of Engineering Sciences (SCI), Theoretical Physics.
2008 (English)In: Proc. Sci., 2008Conference paper (Refereed)
Abstract [en]

In this poster, we present a model of large extra dimensions where the internal space has the geometry of a hyperbolic disc. Compared with the ADD model, this model provides a more satisfactory solution to the hierarchy problem between the electroweak scale and the Planck scale, and it also avoids constraints from astrophysics. Since there is no known analytic form of the Kaluza-Klein spectrum for our choice of geometry, we obtain a spectrum based on a combination of approximations and numerical computations. We study the possible signatures of our model for hadron colliders, especially the LHC, where the most important processes are the production of a graviton together with a hadronic jet or a photon. We find that for the case of hadronic jet production, it is possible to obtain relatively strong signals, while for the case of photon production, this is much more difficult.

Place, publisher, year, edition, pages
, Proceedings of Science, ISSN 1824-8039
Keyword [en]
Electroweak scale, Extra dimensions, Hadron colliders, Hierarchy problem, Jet productions, Numerical computations, Photon production, Satisfactory solutions, Astrophysics, Photons, Galaxies
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:kth:diva-152181ScopusID: 2-s2.0-84882366082OAI: diva2:750782
Identification of Dark Matter 2008, IDM 2008, 18-22 August 2008, Stockholm, Sweden

QC 20140930

Available from: 2014-09-30 Created: 2014-09-23 Last updated: 2014-09-30Bibliographically approved

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Melbéus, Henrik
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