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We construct models with a Kaluza-Klein (KK) parity in a five- dimensional warped geometry, in an attempt to address the little hierarchy problem present in setups with bulk Standard Model fields. The lightest KK particle (LKP) is stable…

High Energy Physics - Phenomenology · Physics 2009-12-15 Kaustubh Agashe , Adam Falkowski , Ian Low , Geraldine Servant

We measure the impact of nonvanishing boundary localised terms on $\Delta B=2$ transitions in five-dimensional Universal Extra Dimensional scenario where masses and coupling strengths of several interactions of Kaluza-Klein modes are…

High Energy Physics - Phenomenology · Physics 2021-02-10 Avirup Shaw

We discuss the collider phenomenology of Universal Extra Dimension models with gravity mediated decays. We concentrate on diphoton associated with large missing transverse energy signature. At the collider, level-1 Kaluza-Klein (KK)…

High Energy Physics - Phenomenology · Physics 2015-06-04 Kirtiman Ghosh , Katri Huitu

The model of Physics resulting from a Kaluza-Klein dimensional reduction procedure offers very good dark matter candidates in the form of Light Kaluza-Klein Particles, and thus becomes relevant to Cosmology. In this work we recover a…

General Relativity and Quantum Cosmology · Physics 2018-08-15 B. C. Georgalas , Stelios Karydas , Eleftherios Papantonopoulos

We study the implications at the LHC for a recent class of non-custodial warped extra-dimensional models where the AdS_5 metric is modified near the infrared brane. Such models allow for TeV Kaluza-Klein excitations without conflict with…

High Energy Physics - Phenomenology · Physics 2013-05-30 Jorge de Blas , Antonio Delgado , Bryan Ostdiek , Alejandro de la Puente

When computing radiative corrections in models with compactified extra dimen- sions, one has to sum over the entire tower of Kaluza-Klein excitations inside the loops. The loop corrections generate a difference between the coupling strength…

High Energy Physics - Phenomenology · Physics 2018-09-26 Ayres Freitas , Daniel Wiegand

We consider Kaluza-Klein theories as candidates for the unification of gravity and the electro-weak model. In particular, we fix how to reproduce geometrically the interaction between fermions and gauge bosons, in the low energy limit.

General Relativity and Quantum Cosmology · Physics 2007-05-23 Francesco Cianfrani , Giovanni Montani

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

In this proceeding, the phenomenology of Universal Extra Dimensions (UED), in which all the Standard Model fields propagate, is explored. We focus on models with one universal extra dimension, compactified on an $S_1/Z_2$ orbifold. We…

High Energy Physics - Phenomenology · Physics 2009-10-09 Kyoungchul Kong , Konstantin T. Matchev

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

We study signals at the Large Hadron Collider (LHC) for Kaluza-Klein (KK) excitations of the electroweak gauge bosons in the framework with the Standard Model (SM) gauge and fermion fields propagating in a warped extra dimension. Such a…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kaustubh Agashe , Hooman Davoudiasl , Shrihari Gopalakrishna , Tao Han , Gui-Yu Huang , Gilad Perez , Zong-Guo Si , Amarjit Soni

We consider a warped five-dimensional model with an ultraviolet (UV) brane and, on top of the Standard Model isolated modes, continua of KK modes with different mass gaps for all particles: gauge bosons, fermions, graviton, radion and Higgs…

High Energy Physics - Phenomenology · Physics 2019-10-02 Eugenio Megias , Mariano Quiros

Previous studies have shown how the three generations of the Standard Model fermions can arise from a single generation in more than four dimensions, and how off-diagonal neutral couplings arise for gauge-boson Kaluza-Klein recurrences.…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. M. Frere , M. V. Libanov , E. Ya. Nugaev , S. V. Troitsky

We reconsider theories with low gravitational (or string) scale M_* where Newton's constant is generated via new large-volume spatial dimensions, while Standard Model states are localized to a 3-brane. Utilizing compact hyperbolic manifolds…

High Energy Physics - Phenomenology · Physics 2009-10-31 Nemanja Kaloper , John March-Russell , Glenn D. Starkman , Mark Trodden

Minimal universal extra dimensions (mUED) is often thought to predict that the lightest Kaluza-Klein particle (LKP) is the Kaluza-Klein gauge boson B^1, leading to conventional missing energy signals at colliders and WIMP dark matter. In…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jose A. R. Cembranos , Jonathan L. Feng , Louis E. Strigari

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

Applying the equations of motion together with corresponding boundary conditions of bulk profiles at infrared and ultraviolet branes, we verify some lemmas on the eigenvalues of Kaluze-Klein modes in framework of warped extra dimension with…

High Energy Physics - Phenomenology · Physics 2015-05-27 Tai-Fu Feng , Jian-Bin Chen , Tie-Jun Gao , Ke-Sheng Sun

Discovery of a Higgs boson and precise measurements of its properties open a new window to test physics beyond the standard model. Models with Universal Extra Dimensions are not exception. Kaluza-Klein excitations of the standard model…

High Energy Physics - Phenomenology · Physics 2015-06-17 Thomas Flacke , Kyoungchul Kong , Seong Chan Park

In the 'fat-brane' realization of Universal Extra Dimension (UED) models, the gravity mediated decays of Kaluza-Klein (KK) excitations of the Standard Model (SM) particles offer interesting collider signals. Colored level-1 KK-particles…

High Energy Physics - Phenomenology · Physics 2018-11-28 Kirtiman Ghosh , Durmus Karabacak , S. Nandi

Universal Extra Dimension (UED) model is one of the popular extension of the Standard Model (SM) which offers interesting phenomenology. In the minimal UED (mUED) model, Kaluza-Klein (KK) parity conservation ensures that $n=1$ KK states can…

High Energy Physics - Phenomenology · Physics 2011-02-15 Biplob Bhattacherjee , Kirtiman Ghosh
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