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RG running in a minimal UED model in light of recent LHC Higgs mass bounds
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.ORCID iD: 0000-0002-3525-8349
2012 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 712, no 4-5, 419-424 p.Article in journal (Refereed) Published
Abstract [en]

We study how the recent ATLAS and CMS Higgs mass bounds affect the renormalization group running of the physical parameters in universal extra dimensions. Using the running of the Higgs self-coupling constant, we derive bounds on the cutoff scale of the extra-dimensional theory itself. We show that the running of physical parameters, such as the fermion masses and the CKM mixing matrix, is significantly restricted by these bounds. In particular, we find that the running of the gauge couplings cannot be sufficient to allow gauge unification at the cutoff scale.

Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 712, no 4-5, 419-424 p.
National Category
Subatomic Physics
URN: urn:nbn:se:kth:diva-79444DOI: 10.1016/j.physletb.2012.05.029ISI: 000305378200016ScopusID: 2-s2.0-84861481123OAI: diva2:495506
Swedish Research Council, 621-2008-4210Swedish Research Council, 621-2011-3985

Updated from manuscript to article in journal.

Previous manuscript title: RG running in UEDs in light of recent LHC Higgs mass bounds

QC 20120223

Available from: 2012-02-23 Created: 2012-02-09 Last updated: 2013-02-20Bibliographically approved
In thesis
1. Particle Phenomenology of Compact Extra Dimensions
Open this publication in new window or tab >>Particle Phenomenology of Compact Extra Dimensions
2012 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis is an investigation of the subject of extra dimensions in particle physics. In recent years, there has been a large interest in this subject. In particular, a number of models have been suggested that provide solutions to some of the problem with the current Standard Model of particle physics. These models typically give rise to experimental signatures around the TeV energy scale, which means that they could be tested in the next generation of high-energy experiments, such as the LHC. Among the most important of these models are the universal extra dimensions model, the large extra dimensions model by Arkani-Hamed, Dimopolous, and Dvali, and models where right-handed neutrinos propagate in the extra dimensions.

In the thesis, we study phenomenological aspects of these models, or simple modifications of them. In particular, we focus on Kaluza–Klein dark matter in universal extra dimensions models, different aspects of neutrino physics in higher dimensions, and collider phenomenology of extra dimensions. In addition, we consider consequences of the enhanced renormalization group running of physical parameters in higher-dimensional models.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2012. xiv, 98 p.
Trita-FYS, ISSN 0280-316X ; 2012:16
Higher-dimensional quantum field theories, universal extra dimensions, Arkani-Hamed–Dimopolous–Dvali (ADD) model, hierarchy problem, Kaluza– Klein dark matter, neutrino mass, seesaw mechanism, leptonic mixing, renormalization group running, collider phenomenology, Large Hadron Collider
National Category
Subatomic Physics
urn:nbn:se:kth:diva-93749 (URN)978-91-7501-305-3 (ISBN)
Public defence
2012-05-11, Sal FB53, Albanova, Roslagstullsbacken 21, Stockholm, 10:00 (English)
QC 20120427Available from: 2012-04-27 Created: 2012-04-25 Last updated: 2012-04-27Bibliographically approved

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