Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Phenomenology of Hyperbolic Large Extra Dimensions for Hadron Colliders
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.
2007 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The subject of extra dimensions has experienced a renewed interest in recent years. Arkani-Hamed, Dimopoulos, and Dvali (ADD) have pointed out that it is possiblethat there exist extra dimensions that are as large as micrometer sized, if theStandard Model fields are restricted to a four-dimensional brane. In the ADD model, only the graviton is able to probe the extra dimensions. The main motivation for this model is that it could solve the hierarchy problem between the electroweak scale and the Planck scale by lowering the Planck scale to 1 TeV. However, in the ADD model, the radius of the extra dimensions is large, giving a new hierarchy problem between this radius and the electroweak scale. In addition, there are significant constraints on the model coming from astrophysics. To improve on the ADD model, it is possible to consider a model with curved extra dimensions. An interesting scenario is provided by extra dimensions of hyperbolic geometry. In this case, it is possible to bring the Planck scale down to 1 TeV without the need of a large radius. Also, the constraints that are important for the ADD model can be completely avoided. The most efficient probe of large extra dimensions is particle physics. In particular, it is possible to study their phenomenology in high-energy particle accelerators such as the Large Hadron Collider, which will be completed in 2008. The phenomenology of the ADD model has been extensively studied. In this thesis, we consider the phenomenology of a model where the internal space is a hyperbolic disc. We obtain the Kaluza-Klein spectrum approximately and study the Kaluza-Klein modes. The results are cross sections for production of a graviton together with a photon or a hadronic jet, which are the most important reactions for LHC physics.

Place, publisher, year, edition, pages
2007. , 82 p.
Series
Trita-FYS, ISSN 0280-316X ; 2007:83
Keyword [en]
Large extra dimensions, ADD model, hyperbolic extra dimensions, LHC
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-79541ISRN: KTH/FYS/--07:83--SEOAI: oai:DiVA.org:kth-79541DiVA: diva2:495626
Educational program
Master of Science - Engineeering Physics
Uppsok
Physics, Chemistry, Mathematics
Supervisors
Examiners
Available from: 2012-05-11 Created: 2012-02-09 Last updated: 2012-05-11Bibliographically approved

Open Access in DiVA

fulltext(693 kB)226 downloads
File information
File name FULLTEXT01.pdfFile size 693 kBChecksum SHA-512
bc8b3f0d228a306fa22f7a0fc75113f849cbf0394549492b29119b960955257a259035f7cebe70dd1051415f220cbd544e4c4d88d24bdb99ccd89b1b33402c6e
Type fulltextMimetype application/pdf

By organisation
Theoretical Particle Physics
Subatomic Physics

Search outside of DiVA

GoogleGoogle Scholar
Total: 226 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 65 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf