Universal Extra Dimensions at the e- e- Colliders

  title={Universal Extra Dimensions at the e- e- Colliders},
  author={Hsin-Chia Cheng},
  journal={International Journal of Modern Physics A},
  • Hsin-Chia Cheng
  • Published 2002
  • Physics
  • International Journal of Modern Physics A
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 model with a nearly degenerate superpartner spectrum. The heavier first level KK states cascade decay to the lightest KK particles (LKP), which is neutral and stable because of KK-parity. The signatures involve missing energy and relatively soft jets and… Expand

Figures from this paper

Probing universal extra dimension at the International Linear Collider
Abstract In the context of an universal extra-dimensional scenario, we consider production of the first Kaluza–Klein electron positron pair in an e + e − collider as a case-study for the futureExpand
Discrimination of Supersymmetry and Universal Extra Dimensions at Hadron Colliders
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 colliders. We study theExpand
Deciphering universal extra dimension from the top quark signals at the CERN LHC
Models based on Universal Extra Dimensions predict Kaluza-Klein (KK) excitations of all Standard Model (SM) particles. We examine the pair production of KK excitations of top- and bottom-quarks atExpand
Contrasting Supersymmetry and Universal Extra Dimensions at the CLIC Multi-TeV e+e- Collider
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 requireExpand
Discrimination of supersymmetry and universal extra dimensions at hadron colliders
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 colliders. We study theExpand
Dark matter and collider phenomenology of universal extra dimensions
Abstract We review the phenomenology of models with flat, compactified extra dimensions where all of the Standard Model fields are allowed to propagate in the bulk, known as Universal ExtraExpand
Universal Extra-Dimensional Models with Boundary Localized Kinetic Terms: Probing at the LHC
In universal extra-dimensional models a conserved $Z_2$ parity ensures the stability of the lightest Kaluza-Klein particle, a potential dark-matter candidate. We show here that boundary-localizedExpand
KK-parity non-conservation in UED confronts LHC data
Kaluza–Klein (KK) parity can be violated in a five-dimensional universal extra-dimensional model with boundary-localised (kinetic or mass) terms (BLTs) at the fixed points of $$S^1/Z_2$$S1/Z2Expand
Exploring the universal extra dimension at the LHC
Besides supersymmetry, the other prime candidate of physics beyond the Standard Model (SM), crying out for verification at the CERN Large Hadron Collider (LHC), is extra-dimension. To hunt forExpand
Constraints on universal extra dimension models with gravity mediated decays from ATLAS diphoton search
A bstractWe discuss the collider phenomenology of Universal Extra Dimension models with gravity mediated decays. We concentrate on diphoton associated with large missing transverse energy signature.Expand


Probes of universal extra dimensions at colliders
In the Universal Extra Dimensions model of Appelquist, Cheng and Dobrescu, all of the Standard Model fields are placed in the bulk and thus have Kaluza-Klein (KK) excitations. These KK states canExpand
Search for SUSY at LHC in jets + EmissT final states for the case of nonuniversal gaugino masses
Abstract We investigate squark and gluino pair production at LHC (CMS) with subsequent decays into quarks and LSP for the case of nonuniversal gaugino masses. Visibility of signal by an excess overExpand
Universal extra dimensions and b→sγ
Abstract We analyze the effect of flat universal extra dimensions (i.e., extra dimensions accessible to all SM fields) on the process b → sγ . With one Higgs doublet, the dominant contribution atExpand
Universal extra dimensions and the muon magnetic moment
Abstract We analyze the muon anomalous magnetic moment in the context of universal extra dimensions. Our computation shows that the bound from electroweak data on the size of these dimensions allowsExpand
Self-breaking of the standard model Gauge Symmetry
If the gauge fields of the standard model propagate in TeV-size extra dimensions, they rapidly become strongly coupled and can form scalar bound states of quarks and leptons. If the quarks andExpand
Bounds on Universal Extra Dimensions
We show that the bound from the electroweak data on the size of extra dimensions accessible to all the standard model elds is rather loose. These \universal" extra dimensions could have aExpand
Collider implications of Kaluza-Klein excitations of the gluons
We consider an asymmetric string compactification scenario in which the SM gauge bosons can propagate into one TeV$^{-1}$-size extra compact dimension. These gauge bosons have associated KKExpand
Precision study of supersymmetry at future linear e+e- colliders.
A detailed study on the first superparticle alone gives an upper bound on the next superparticles and the basic mass relations assumed in grand unified models or supergravity, such as the gaugino mass relations or the universal scalar mass assumption are tested in a variety of ways. Expand
Proton Stability in Six Dimensions
We show that Lorentz and gauge invariance explain the long proton lifetime within the standard model in six dimensions. The baryon-number violating operators have mass dimension 15 or higher. UponExpand
Number of fermion generations derived from anomaly cancellation.
We prove that global anomaly cancellation requires more than one generation of quarks and leptons, provided that the standard model fields propagate in two universal extra dimensions. Furthermore, ifExpand