In prospect of the simplest composite Higgs mechanism

• Julius Kuti

Room: 132:028 New lattice results for two massless fermions in the sextet representation of the SU(3) color gauge group are presented. Chiral symmetry breaking in the model is consistent with the simplest realization of the composite Higgs mechanism. The composite spectrum and the anomalous dimension of the fermion mass are discussed with outlook for phenomenological LHC analysis. For developing conformal tests, twelve fermion flavors in the fundamental SU(3) representation will be discussed.

Running, Walking and Jumping Dynamics

• Francesco Sannino

Room: 132:028

Light Asymmetric Dark Matter on the Lattice: SU(2) Technicolor with Two Fundamental Flavors

• Randy Lewis

Room: 132:028 The SU(2) gauge theory with two massless Dirac flavors constitutes the building block of several models of Technicolor. Furthermore it has also been used as a template for the construction of a natural light asymmetric, or mixed type, dark matter candidate. We use explicit lattice simulations to confirm the pattern of chiral symmetry breaking by determining the Goldstone spectrum and therefore show that the dark matter candidate can, de facto, be constituted by a complex Goldstone boson. We also determine the phenomenologically relevant spin-one and spin-zero isovector spectrum and demonstrate that it is well separated from the Goldstone spectrum.

Reduced staggered fermions: four fermion operators and beyond

• Simon Catterall

Room: 132:028 I will describe how reduced staggered fermions can be used to study candidate theories for dynamical electroweak symmetry breaking based on new strongly coupled dynamics. Two examples will be discussed; the construction and simulation of chirally invariant four fermion terms in a lattice verson of the gauged NJL model and a proposal for a lattice model that should generate a condensate which breaks both chiral symmetry and gauge invariance.

Flavors and Cosmology from Extra Dimensions

• Elisabetta Pallante

Room: 132:028

SU(2) with two adjoint fermions, Minimal Walking Technicolor

• Antonio Rago

Room: 132:028 SU(2) with two Dirac flavors in the adjoint representation is believed to be an IR conformal theory. As a result, if perturbed with a mass for the fermions, the theory develops a mass gap and the entire mass spectrum scales with a fixed exponent of the perturbing mass. In this talk I will collect all the evidence for the IR behaviour of the theory that have been proposed by our group during the years. I will discuss the reliability of our findings, and the latest development to investigate the most phenomenologically relevant quantities.

The top quark forward-backward asymmetry and new strong interactions

• Alex Kagan

Room: 132:028

Axigluons from the top-down

• Paul Langacker

Room: 132:028 Axigluons have been suggested as a possible explanation of the Tevatron top asymmetry. I discuss a number of theoretical issues that one encounters in trying to embed an axigluon in U(3) X U(3) or U(3)^n groups descending from classes of string constructions, such as type IIA. These include anomaly cancellation, the difficulty of generating Yukawa couplings using the most likely quantum numbers (they must be induced by higher-dimensional operators), possible family-nonuniversal magnitudes of couplings, the role of anomalous U(1) factors, the axigluon width, the decay modes and signatures of exotics needed for anomaly cancellation, and FCNC effects.

Technicolor at the LHC: an update

• Sekhar Chivukula

Room: 132:028 The LHC accelerator and the ATLAS and CMS detectors have performed spectacularly well. In this talk I will outline the current limits on various particles predicted in models of dynamical electroweak symmetry breaking, and the prospect for searches at 8 TeV this year.

Astrophysical uncertainties in dark matter direct detection

• Subir Sarkar

Room: 132:028

Collider limits on dark matter and asymmetric dark matter phenomenology

• Mads Frandsen

Room: 132:028

Topcolor: An Update

• Elizabeth Simmons

Room: 132:028 In dynamical models of electroweak symmetry breaking, one key challenge is providing the large mass of the top quark without causing large flavor-changing neutral currents or excessive weak isospin violation. Adding new strong dynamics that couples preferentially to the top quark is an interesting solution. This talk reviews the basic ideas of topcolor, topcolor-assisted technicolor, and top seesaw models and introduces the "top triangle moose" model as a low-energy effective theory that can interpolate between various models of this kind. Recent data from the Tevatron and the LHC is used to constrain the various new states (colorons, top-pions, composite higgs bosons, top partners) present in these models and suggest which model-building directions are the most promising.

Composite conformal dynamics

• Francesco Sannino

Room: 132:028

Cornering Technicolor through unitarity, LEP, and LHC

• Roshan Foadi

Room: 132:028 Technicolor with near conformal dynamics is a viable candidate for electroweak symmetry breaking. Based on the old LEP results, the most recent observations from ATLAS and CMS, and unitarity arguments, I will discuss the bounds on the lightest spin-one resonances

TBC

• Estia EICHTEN

Room: 132:028

Meson spectrum of a model field theory with walking gauge coupling

• Rohana Wijewardhana

Room: 132:028

Holography and Walking technicolor

• Deog-Ki Hong

Room: 132:028 We construct the holographic dual of walking technicolor (WTC). We then estimate the S parameter of WTC and analyze its spectrum, especially that of techni-dilaton, using the holographic dual.

TBC

• Jay Wacker

Room: 132:028

Sizing the Conformal Window

• Thomas Ryttov

Room: 132:028

Unitary Higgsless and Higgsful Standard Models from Spontaneous Dimensional Reduction and WW Scattering at LHC

• Hong-Jian He

Room: 132:028 Theories of quantum gravity predict spacetime dimensions to become reduced at high energies, a striking phenomenon known as spontaneous dimensional reduction (SDR). We construct an effective electroweak theory based on the minimal Higgsless standard model (SM) and incorporate the TeV-scale SDR, which is renormalizable and unitary. We further study an extension to the Higgsful SM under the TeV- scale SDR and with induced anomalous Higgs couplings to weak gauge bosons, which provides a natural solution to the hierarchy problem. We demonstrate that both the Higgsless and Higgsful SMs predict unitary longitudinal WW scattering, and can be discriminated from the conventional 4d SM by the WW scattering experiments at the CERN LHC.