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Related papers: Unbroken $SU(2)$ at a 100 TeV collider

200 papers

We have examined how a Standard Model or Supersymmetric Higgs boson h might be detected at possible hadron colliders. The channels W(to ell nu)h(to b b~), Z(to ell ell~)h(to b b~) and W/Z(to jets)h(to tau+ tau-) are most useful. The results…

High Energy Physics - Phenomenology · Physics 2016-09-01 Stephen Mrenna , G. L. Kane

A summary of results obtained from e^+e^- annihilations at LEP is given. The precision measurements around the Z resonance, the results from charged gauge boson production and searches for new particles are reviewed. Particular emphasis is…

High Energy Physics - Experiment · Physics 2009-09-29 Wolfgang Lohmann

We discuss the parameterization for electroweak gauge boson interactions without a light Higgs boson. We present the constraints on the anomalous gauge-boson couplings from the current experiments. We emphasize that the four-point couplings…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tao Han

It is shown that in a large class of E(6) models, either an e+e- collider operating at $\rs \geq 1.5$ TeV must find a signal for the production of exotic leptons, or a collider operating at $\rs \geq 300$ GeV must find at least one light…

High Energy Physics - Phenomenology · Physics 2007-05-23 Manuel Drees , Madison

We describe the anticipated experimental program of an e+e- linear collider in the energy range 500 GeV -- 1.5 TeV. We begin with a description of current collider designs and the expected experimental environment. We then discuss precision…

High Energy Physics - Experiment · Physics 2009-09-29 Hitoshi Murayama , Michael E. Peskin

The prospects for discovery of the five Higgs bosons of the minimal supersymmetric standard model are assessed for existing and planned future colliders, including LEP\,I, LEP\,II, LHC and SSC. As a benchmark for comparisons, we take a…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , Kingman Cheung , R. J. N. Phillips , A. L. Stange

We describe the physics potential of $e^+e^-$ linear colliders in this report. These machines are planned to operate in the first phase at a center-of --mass energy of 500 GeV, before being scaled up to about 1 TeV. In the second phase of…

High Energy Physics - Phenomenology · Physics 2009-09-25 E. Accomando

High precision measurements of electroweak observables at $e^\pm$ colliders indicate the existence of a light Higgs boson below the $W^\pm$ threshold. If such a fundamental scalar should be found in the near future it is important to fully…

High Energy Physics - Phenomenology · Physics 2008-11-26 Michael Melles

We investigate the potential of future TeV linear e^+e^- colliders to observe singly-charged Higgs bosons ($H^\pm$) via the coupling $H^\pm W^\mp Z$, which would signal the existence of exotic Higgs representations. In the context of a…

High Energy Physics - Phenomenology · Physics 2009-10-28 Kingman Cheung , Roger J. N. Phillips , Apostolos Pilaftsis

The discovery of the Higgs boson at the LHC exposes some of the most profound mysteries fundamental physics has encountered in decades, opening the door to the next phase of experimental exploration. More than ever, this will necessitate…

High Energy Physics - Phenomenology · Physics 2016-10-12 Nima Arkani-Hamed , Tao Han , Michelangelo Mangano , Lian-Tao Wang

I argue that TeV neutrino physics might become an exciting frontier of particle physics in the era of the Large Hadron Collider (LHC). The origin of non-zero but tiny masses of three known neutrinos is probably related to the existence of…

High Energy Physics - Phenomenology · Physics 2009-08-20 Zhi-zhong Xing

The electroweak symmetry breaking (EWSB) mechanism is still an undecided question in particle physics. We propose to utilize the single top quark and Higgs associated production ($th$), $Zh$ production via gluon fusion at the LHC to probe…

High Energy Physics - Phenomenology · Physics 2021-07-19 Ke-Pan Xie , Bin Yan

Measurements of supersymmetric particle couplings provide important verification of supersymmetry. If some of the superpartners are at the multi-TeV scale, they will escape direct detection at planned future colliders. However, such…

High Energy Physics - Phenomenology · Physics 2008-11-26 Hsin-Chia Cheng

The $U(1)_{B-L}$ gauge symmetry is a promising extension of the standard model of particle physics, which is supposed to be broken at some high energy scale. Associated with the $U(1)_{B-L}$ gauge symmetry breaking, right-handed neutrinos…

High Energy Physics - Phenomenology · Physics 2018-09-28 Nobuchika Okada , Osamu Seto

The framework of a warped extra dimension with the Standard Model (SM) fields propagating in it is a very well-motivated extension of the SM since it can address both the Planck-weak and flavor hierarchy problems of the SM. Within this…

High Energy Physics - Phenomenology · Physics 2015-03-13 Kaustubh Agashe , Aleksandr Azatov , Tao Han , Yingchuan Li , Zong-Guo Si , Lijun Zhu

We point out that the ratio of $W^+ W^- \to W^+ W^-$ and $W^+W^- \to ZZ$ cross sections is a sensitive probe of the dynamics of electroweak symmetry breaking, in the CM energy region $\sqrt {s_{\rm ww}^{}} \agt 1$~TeV where vector boson…

High Energy Physics - Phenomenology · Physics 2016-09-01 V. Barger , Kingman Cheung , T. Han , R. J. N. Phillips

In this review, we discuss methods of parsing direct and indirect information from collider experiments regarding the Higgs boson and describe simple ways in which experimental likelihoods can be consistently reconstructed and interfaced…

High Energy Physics - Phenomenology · Physics 2013-03-20 Aleksandr Azatov , Jamison Galloway

If the Standard Model is embedded in a left-right symmetric gauge theory at the TeV scale, the pair production of light W-bosons in e^+e^- collisions, e^+e^- -> W^+W^-, will be affected by mixings in the gauge and neutrino sectors, and by…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Raidal

The Z-pole data from e+e- colliders and results from the NuTeV experiment at Fermilab can be brought into agreement if (1) the neutrino-Z couplings were suppressed relative to the Standard Model (SM), and (2) the Higgs boson were much…

High Energy Physics - Phenomenology · Physics 2017-08-23 Tatsu Takeuchi , Will Loinaz , Naotoshi Okamura , L. C. R. Wijewardhana

In this report I surveyed physics potential of the gamma-gamma option of a Linear e+e- Collider with the following questions in mind: What new discovery can be expected at a gamma-gamma collider in addition to what will be learned at its…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kaoru Hagiwara