A pr 2 00 1 Detecting top - Higgs at high energy e + e − colliders
نویسندگان
چکیده
We calculate the contributions of the top-Higgs h0t predicted by topcolor assisted technicolor(TC2) models to ee −→ tcνeνe and compare the results with the contributions of h0t to the processes e e −→ Zh0t −→ Ztc and ee −→ γh0t −→ γtc. We find that ee −→ tcνeνe is very sensitive to h0t , which can be easy detected via this process at high-energy ee collider(LC) experiments with √ s ≥ 500 GeV , as long as its mass below the tt threshold. The process ee −→ γtc also can be used to detect h0t at LC experiments. PACS number(s): 12.60Fr, 14.80.Cp, 12.60.Rc This work is supported by the National Natural Science Foundation of China(I9905004), the Excellent Youth Foundation of Henan Scientific Committee(9911); and Foundation of Henan Educational Committee. E-mail:[email protected]
منابع مشابه
Measuring the top Yukawa coupling to a heavy Higgs Boson at future e(+)e(-) linear colliders.
If the Higgs boson mass is greater than 350 GeV, the top quark Yukawa coupling can be determined using the Higgs resonant contribution to t&tmacr; production from W+W- fusion at high energy e(+)e(-) linear colliders. We have evaluated the significance with which the signal of a Higgs decaying to t&tmacr; pairs could be observed at future e(+)e(-) colliders, with center of mass energies of 800 G...
متن کاملar X iv : h ep - p h / 06 08 29 3 v 1 2 8 A ug 2 00 6 Anomalous Higgs Couplings at an e γ Collider
We examine the sensitivity of e γ colliders (based on e+ e linear colliders of c.m. energy 500 GeV) to the anomalous couplings of the Higgs to W-boson via the process e γ −→ ν W H. This has the advantage over e+ e collider in being able to dissociate WWH vertex from ZZH. We are able to construct several dynamical variables which may be used to constrain the various couplings in the WWH vertex.
متن کاملHIGGS SEARCH AT e + e − AND γγ COLLIDERS ∗
The prospects for discovering Higgs particles and studying their fundamental properties at future high–energy electron–positron and photon-photon colliders are reviewed. Both the Standard Model Higgs boson and the Higgs particles of its minimal supersymmetric extension are discussed. We also comment on a two Higgs doublet model searches at LEP 1. We update various results by taking into account...
متن کاملar X iv : 0 90 3 . 37 20 v 1 [ he p - ph ] 2 2 M ar 2 00 9 Single production of the top partners at high energy colliders
The left-right twin Higgs (LRTH) model is a concrete realization of the twin Higgs mechanism, which predicts the existence of the top partner T . In this paper, we consider production of T associated with the top quark t at the high energy linear ee collider (ILC) and the LHC experiments, and its single production in future linac-ring type ep collider experiment. To compare our results with tho...
متن کاملar X iv : h ep - p h / 06 04 19 7 v 1 2 4 A pr 2 00 6 Physics of top
I will briefly review the physics of top quark at high energy colliders. A new discovery of single-top event at the Fermilab Tevatron is expected. At the CERN Large Hadron Collider, detailed top quark properties can be measured and new physics ideas in which top quark plays a special role can be tested. I will also discuss a few phenomenological methods for analyzing experimental data to study ...
متن کامل