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The effect of anomalous gauge couplings on polarized $e^- e^-$ scattering cross sections is examined. It turns out that different combinations of beam polarizations provide constraints that are complementary to each other and to those…

High Energy Physics - Phenomenology · Physics 2009-10-28 Debajyoti Choudhury , Frank Cuypers

If no light Higgs boson exist, the interaction among the gauge bosons becomes strong at high energies (~1TeV). The effects of strong electroweak symmetry breaking (SEWSB) could manifest themselves as anomalous couplings before they give…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Krstonosic , K. Moenig , M. Beyer , E. Schmidt , H. Schroeder

We consider the possibility of observing deviations from the Standard Model gauge-boson self-couplings at a future $500$~GeV $e^+ e^-$ linear collider. We concentrate on the case in which the electroweak symmetry breaking sector is strongly…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. A. Likhoded , T. Han , G. Valencia

We analyze the influence of anomalous gauge couplings in the reaction $e^- \: e^- \longrightarrow e^- \: W^- \: \nu_e$ at a 500 GeV linear collider. The limits imposed by this process on deviations from the standard model of electro-weak…

High Energy Physics - Phenomenology · Physics 2009-10-22 Debajyoti Choudhury , Frank Cuypers

I describe theories of a strongly-interacting electroweak symmetry breaking sector and discuss the expected size of anomalous weak-boson couplings in these models.

High Energy Physics - Phenomenology · Physics 2009-10-28 R. Sekhar Chivukula

The study of the scattering at high energy of the gauge bosons W and Z, in particular longitudinally polarized W and Z, can clarify the mechanism of spontaneous symmetry breaking in the Standard Model of the electroweak interactions.…

High Energy Physics - Phenomenology · Physics 2017-08-23 Daniele Dominici

The session on precision studies of electroweak interactions is summarized. The contributions address the bilinear, trilinear, quartic as well as heavy-quark interactions of the electroweak gauge bosons. This makes up a picture of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 W. Kilian

We extend our previous analysis of the sensitivity of the energy dependence of the polarization asymmetry in $\gamma e \to W\nu$ to the possible existence of anomalous trilinear gauge couplings to the $\gamma e \to Ze$ case. We find that by…

High Energy Physics - Phenomenology · Physics 2009-12-30 Thomas G. Rizzo

Measurements of the cross section for $\bar \nu_e e^-$ elastic scattering with unprecedented precision have recently been proposed. The impact of these experiments for detecting possible deviations from the standard electroweak theory is…

High Energy Physics - Phenomenology · Physics 2009-11-10 Jonathan L. Rosner

We analyze the pair-production of top quarks in polarized $e^+e^-$ scattering in the presence of electroweak dipole moments. For this, we consider two $CP$-odd observables which probe both the real and the imaginary parts of these moments.…

High Energy Physics - Phenomenology · Physics 2009-09-25 Frank Cuypers

We study the possible experimental signatures resulting from a strongly-interacting electroweak sector at $e^-e^-$ colliders, emphasizing the signal enhancement by high beam polarization. We also discuss the unique role for operating the…

High Energy Physics - Phenomenology · Physics 2011-04-15 Tao Han

The effect of perturbative QCD interactions on the high energy scattering of electroweak vector bosons, when the exchanged channel has pion quantum numbers, is considered. The chiral anomaly is shown to appear in the couplings of particular…

High Energy Physics - Phenomenology · Physics 2009-11-10 Alan R. White

One loop electroweak radiative corrections to left-right parity violating M{\o}ller scattering ($e^-e^-\to e^-e^-$) asymmetries are presented. They reduce the standard model (tree level) prediction by 40$\pm 3$ \% where the main shift and…

High Energy Physics - Phenomenology · Physics 2016-08-24 Andrzej Czarnecki , William J. Marciano

In the standard model with electroweak symmetry breaking through the Higgs mechanism, electroweak gauge-boson scattering amplitudes are large if the Higgs boson is heavy, and electroweak gauge interactions become strong. In theories with…

High Energy Physics - Phenomenology · Physics 2015-05-14 Saurabh D. Rindani

The capability of the NLC in the $\gamma e$ collider mode to probe the CP-conserving $\gamma WW$ and $\gamma ZZ$ anomalous couplings through the use of the polarization asymmetry is examined. When combined with other measurements, very…

High Energy Physics - Phenomenology · Physics 2011-04-15 Thomas G. Rizzo

We review models of electroweak symmetry breaking due to new strong interactions at the TeV energy scale and discuss the prospects for their experimental tests. We emphasize the direct observation of the new interactions through high-energy…

High Energy Physics - Phenomenology · Physics 2011-01-13 T. L. Barklow , G. Burdman , R. S. Chivukula , B. A. Dobrescu , P. S. Drell , N. Hadley , W. B. Kilgore , M. E. Peskin , J. Terning , D. R. Wood

The problem of electroweak symmetry breaking is reviewed with discussion of future relevant experimentation at LHC and $e^+e^-$ linear colliders. The possibility of strong electroweak symmetry breaking is examined in more detail, using the…

High Energy Physics - Phenomenology · Physics 2016-11-03 N. Di Bartolomeo , R. Gatto

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from protons. Significant contributions to this asymmetry could arise from the contributions of strange form factors in the…

Nuclear Experiment · Physics 2012-08-27 HAPPEX Collaboration

We study the process $W^+ W^- \to t \bar t$ in several models of strong interaction electroweak symmetry breaking. We calculate the signals that can be expected by observing the reaction $e^+ e^- \to \nu \bar\nu t \bar t$ at an $e^+ e^-$…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Ruiz Morales , M. E. Peskin

We calculate the production rate of gauge-boson pairs at $e^+e^-$ colliders in a model with a ``hidden'' electroweak symmetry breaking sector - i.e. one in which there are a large number of particles in the symmetry breaking sector other…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. V. Ramana
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