首页|Phenomenology of heavy neutral gauge boson at muon collider
Phenomenology of heavy neutral gauge boson at muon collider
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Heavy neutral gauge boson Z'is proposed in many new physics models.It has rich phenomena at the future muon collider.We study the properties of Z'boson with the process ofμ+μ-→ q(q),μ+μ-→ l+l-,μ+μ-→ ZH andμ+μ-→ W+W-.The discrepancy of Z'coupling to different types of particles can be shown in the cross section distributions around the resonance peak of various decay modes.Angular distributions of the final quark or lepton in µ+µ-→ q(q)/l+l-process are sensitive to the parameters such as mass of Z'and the Z-Z'mixing angle.The interaction of new gauge boson coupling to the standard model gauge particles and Higgs boson are also studied throughμ+μ-→ ZH → l+l-b(b)and μ+μ-→ W+W-→ l+l-vl(v)l.The cross section and the final particles'angular distributions with the contribution of Z'boson differ from those processes with only standard model par-ticles.A forward-backward asymmetry defined by the angular distribution is provided to show the potential of searching for new physics at the muon collider.Especially,the beam polarization with certain value can effectively enlarge the forward-backward asymmetry.
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