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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
Radiative corrections to Kaluza-Klein masses
Extra-dimensional theories contain a number of almost degenerate states at each Kaluza-Klein level. If extra dimensional momentum is at least approximately conserved then the phenomenology of suchExpand
Ghost condensation and a consistent infrared modification of gravity
We propose a theoretically consistent modification of gravity in the infrared, which is compatible with all current experimental observations. This is an analog of the Higgs mechanism in generalExpand
Minimal kinematic constraints and m T2
We clarify the relation between the variable mT2 and the method of kinematic constraints, both of which can be used for mass determination in events with two missing (dark matter) particles at hadronExpand
TeV symmetry and the little hierarchy problem
Constraints from precision electroweak measurements reveal no evidence for new physics up to 5–7 TeV, whereas naturalness requires new particles at around 1 TeV to address the stability of theExpand
Bosonic supersymmetry? Getting fooled at the CERN LHC
We define a minimal model with universal extra dimensions, and begin to study its phenomenology. The collider signals of the first Kaluza-Klein (KK) level are surprisingly similar to those of aExpand
Simplified Models for LHC New Physics Searches
This document proposes a collection of simplified models relevant to the design of new-physics searches at the Large Hadron Collider (LHC) and the characterization of their results. Both ATLAS andExpand
Kaluza-Klein dark matter.
We propose that cold dark matter is made of Kaluza-Klein particles and explore avenues for its detection. The lightest Kaluza-Klein state is an excellent dark matter candidate if standard modelExpand
Little hierarchy, little higgses, and a little symmetry
Little Higgs theories are an attempt to address the ``little hierarchy problem,'' i.e., the tension between the naturalness of the electroweak scale and the precision electroweak measurements showingExpand
Pseudonatural Inflation
We study how to obtain a sufficiently flat inflaton potential that is natural from the particle physics point of view. Supersymmetry, which is broken during inflation, cannot protect the potentialExpand