SUSY07

Session

Alternatives 4

Alt4

27 Jul 2007, 16:30

Physics Building (Karlsruhe University)

219. Is the Higgs boson elementary or composite?

Vyacheslav Rychkov (Scuola Normale Superiore)

27/07/2007, 16:30

Alternatives

Parallel Talk

As a way to extend the naturalness domain of the Standard Model, we enlarge the symmetry of the top-Higgs sector to a softly broken SO(5). Depending on its parameters, the model can either be viewed as describing a perturbatively coupled Higgs boson or as the low energy description of a strongly coupled theory at the naturalness cutoff. We perform the ElectroWeak Precision Test (EWPT)...

247. The S-parameter in Holographic Technicolor Models

Mr Matthew Reece (Cornell University, Laboratory for Elementary Particle Physics)

27/07/2007, 16:50

Alternatives

Parallel Talk

We study the S parameter, considering especially its sign, in models of electroweak symmetry breaking (EWSB) in extra dimensions, with fermions localized near the UV brane. Such models are conjectured to be dual to 4D strong dynamics triggering EWSB. The motivation for such a study is that a negative value of S can significantly ameliorate the constraints from electroweak precision data on...

375. Minimal Walking Technicolor for Colliders

Mads Toudal Frandsen (University of Kopenhagen)

27/07/2007, 17:10

Alternatives

Parallel Talk

I will present recent models of dynamical breaking of the electroweak theory, i.e. Minimal Walking Technicolor. I will focus on relevant collider phenomenology.

348. Collider Phenomenology of Higgsless models

Dr Alexander Belyaev (Southampton University - Rutherford Lab)

27/07/2007, 17:30

Alternatives

Parallel Talk

We study the LHC signatures of new gauge bosons in the minimal deconstruction Higgsless model with 3 lattice sites (TSM). It predicts an extra pair of W' and Z' bosons which can be as light as 400 GeV while consistent with all existing precision data. We analyze the W' and Z' signals at the LHC including the complete electroweak and QCD backgrounds and that LHC can essentially cover...

226. Electroweak Symmetry Breaking without Higgs Bosons at LHC

Pierre-Antoine Delsart (Physique experimentale des particules)

27/07/2007, 17:50

Alternatives

Parallel Talk

While the Brout-Englert-Higgs model of electroweak symmetry breaking is the best studied scenario, a number of alternative models exist, predicting new signatures. The ATLAS experiment will start data taking at the LHC in 2007 and will search for evidence for such models. This includes studies of vector boson scattering and searches for the production of particles predicted in...

392. Black Holes and ADD gravitons at the LHC

Sezen Sekmen (Physics Department - Middle East Technical University (METU))

27/07/2007, 18:10

Alternatives

Parallel Talk

One of the consequences of large extra dimensions is the production of microscopic black holes at LHC energies. If the effective Planck sclae is at the TeV scale the black hole production cross section is in the picobarn range. We present results of a multiobject BH analysis at CMS: for effective Planck scale up to 3 TeV a 5-sigma reach can be obtained with up to 100 pb-1. We...