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In this letter, we present LHC limits on the minimal universal extra dimension (MUED) model from LHC Run 1 data and current limits from searches of the ongoing Run 2. Typical collider signals of the Kaluza-Klein (KK) states mimic generic…

High Energy Physics - Phenomenology · Physics 2017-06-19 Nicolas Deutschmann , Thomas Flacke , Jong Soo Kim

We discuss the collider signals of large extra dimensions in which gravity as well as the SM particles propagate into the extra dimensions. These signals arise either from the production of Kaluza-Klein excitations of the SM particles and…

High Energy Physics - Phenomenology · Physics 2009-11-07 C. Macesanu , C. D. McMullen , S. Nandi

We show the bounds on five- and six-dimensional Universal Extra Dimension models from the result of the Higgs boson searches at the Large Hadron Collider and electroweak precision measurement. The latest data released by the ATLAS and the…

High Energy Physics - Phenomenology · Physics 2013-05-09 Takuya Kakuda , Kenji Nishiwaki , Kin-ya Oda , Ryoutaro Watanabe

We review the main results of the study of the Standard model propagating in two universal extra dimensions. Gauge bosons give rise to heavy spin-1 and spin-0 particles. The latter constitute the lightest Kaluza-Klein (KK) particle in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gustavo Burdman

Universal extra dimensions and supersymmetry have rather similar experimental signatures at hadron colliders. The proper interpretation of an LHC discovery in either case may therefore require further data from a lepton collider. In this…

High Energy Physics - Phenomenology · Physics 2009-11-11 Marco Battaglia , AseshKrishna Datta , Albert De Roeck , Kyoungchul Kong , Konstantin T. Matchev

We study the signature of dilepton and a hard jet ($\ell^+\ell^-j$) via heavy new gauge boson production in split universal extra dimension scenario where the Kaluza-Klein parity is conserved but the Kaluza-Klein number is not. A hard cut…

High Energy Physics - Phenomenology · Physics 2013-01-29 Swarup Kumar Majee , Seong Chan Park

Models for extra dimensions and some of the most promising ensuing signals for experimental discovery at the LHC are briefly reviewed. The emphasis will be put on the production of Kaluza Klein states from both flat and warped…

High Energy Physics - Phenomenology · Physics 2015-03-17 Marc Besancon

In models with universal extra dimensions (i.e. in which all Standard Model fields, including fermions, propagate into compact extra dimensions) momentum conservation in the extra dimensions leads to the conservation of Kaluza--Klein (KK)…

High Energy Physics - Phenomenology · Physics 2008-11-26 Geraldine Servant , Tim M. P. Tait

Standard model gauge bosons propagating in two universal extra dimensions give rise to heavy spin-1 and spin-0 particles. The lightest of these, carrying Kaluza-Klein numbers (1,0), may be produced only in pairs at colliders, whereas the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gustavo Burdman , Bogdan A. Dobrescu , Eduardo Ponton

We study production of Kaluza-Klein gluons (KKG) at the Large Hadron Collider (LHC) in the framework of a warped extra dimension with the Standard Model (SM) fields propagating in the bulk. We show that the detection of KK gluon is…

High Energy Physics - Phenomenology · Physics 2010-04-06 Kaustubh Agashe , Alexander Belyaev , Tadas Krupovnickas , Gilad Perez , Joseph Virzi

Within warped extra dimension models that explain flavor through geometry, flavor changing neutral current constraints generally force the Kaluza-Klein scale to be above many TeV. This creates tension with a natural electroweak scale. On…

High Energy Physics - Phenomenology · Physics 2010-11-08 Sunghoon Jung , James D. Wells

Although they do not address the hierarchy problem, models with Universal Extra Dimensions have attracted a lot of attention as simple benchmark models characterized by small mass splittings and a dark matter WIMP played by the Lightest…

High Energy Physics - Phenomenology · Physics 2015-06-11 Geraldine Servant

Universal extra dimensions, presumably observable at some high-energy scale, would modify low-energy observables, being particularly relevant for physical processes forbidden at tree level by the Standard Model. We address the Kaluza-Klein…

High Energy Physics - Phenomenology · Physics 2020-01-12 Javier Montaño , Héctor Novales-Sánchez , J. Jesús Toscano

We discuss the signatures, at the LHC, of the (1,0)-th Kaluza-Klein (KK) gluon and quarks in the framework of the two universal extra dimensional (2UED) model. Once produced, these particles typically suffer a cascade of decays terminating…

High Energy Physics - Phenomenology · Physics 2015-05-30 Debajyoti Choudhury , Anindya Datta , Dilip Kumar Ghosh , Kirtiman Ghosh

We contrast the experimental signatures of low energy supersymmetry and the model of Universal Extra Dimensions and discuss various methods for their discrimination at hadron and lepton colliders. We study the discovery reach of hadron…

High Energy Physics - Phenomenology · Physics 2009-10-09 Marco Battaglia , Asesh K. Datta , Albert De Roeck , Kyoungchul Kong , Konstantin T. Matchev

Universal extra dimension models with Kaluza-Klein parity provide us excellent candidates for dark matter. We consider phenomenological universal extra dimension models where the Kaluza-Klein (KK) mass spectrum is different from that of the…

High Energy Physics - Phenomenology · Physics 2016-11-22 Yoshiaki Ishigure , Mitsuru Kakizaki , Akiteru Santa

A brief review of the recent developments in the physics from extra dimensions is given with a focus on the effects of Kaluza-Klein excitations in the Standard Model sector. It is shown that the current accurate data on the Fermi constant…

High Energy Physics - Phenomenology · Physics 2014-11-17 Pran Nath

We study constraints on models with a flat "Universal'' Extra Dimension in which all Standard Model fields propagate in the bulk. A significantly improved constraint on the compactification scale is obtained from the extended set of…

High Energy Physics - Phenomenology · Physics 2014-11-18 Thomas Flacke , Dan Hooper , John March-Russell

We study the ILC phenomenology of (1,0) Kaluza-Klein (KK) modes along two universal extra dimensions compactified on the chiral square. We compute production cross sections of various (1,0) particles at the ILC with sqrt(s)=1 TeV, focusing…

High Energy Physics - Phenomenology · Physics 2009-09-17 Ayres Freitas , Kyoungchul Kong

Universal Extra Dimensions (UEDs) with compactification radius near the TeV scale provide interesting phenomenology at future colliders. The collider signals of the first Kaluza-Klein (KK) level are very similar to those of a supersymmetric…

High Energy Physics - Phenomenology · Physics 2011-03-23 Hsin-Chia Cheng