Testing Electroweak Symmetry Breaking Mechanism On High Energy Colliders

Although the standard model (SM) has passed a lot of precision experiemntal tests, its electroweak symmetry breaking (EWSB) sector is still not clear. The EWSB sector is a very interesting and importnat topic in current particle physics. And, it's also the main research topic on future high energy experiments. We studied some topic about the EWSB mechanism on the future experiment equipments.1. Testing anomalous Higgs-gauge boson couplings on the Large Hadron Col-lider(LHC). The unitarity of S-matrix in WW scattering is broken for the exist of Higgs anomalous couplings in low energy effective Langrangian . Then, the cross sections of anomalous WW scatterings bias from SM. For the sensitive of WW scatterings, LHC can give the Higgs anomalous couplings a strict bound if no bias is found either in non-linear realized or linear realized effective Langrangian .2. Testing anomalous Higgs-gauge boson couplings on 77 colliders. We studied the γγ→WWZZ and γγ→ WWWW procedures with anomalous Higgs-gauge boson couplings. We also look into the kinematics distributions of the signal, and suggested some acceptance cuts in order to improve sensitivity. For the simple background on photon colliders, the testing is rather sensitive.3. Distinguishing technicolor models via tt productions at polarized photon colliders. We studied the radiate corrections of PGBs in different technicolor models to γγ→ -tt procedure . The PGBs-top quark couplings are different in those models , so we can distinguish them via different corrections. We used a special polarization 2λPc = -1 to enhance the effective luminosity and energy of photons. We found the 500 GeV TESLA can distinguish three typical models with one year integrate luminosity .