Branching Ratios for Higgs Boson Decays

This Demonstration describes the variation of the Higgs boson branching ratios , for eight different decay modes, as a function of the Higgs boson mass . The results are obtained using first-order perturbation theory. Curves are shown for Higgs decay into pairs of gauge bosons (γ, g, Z, and W) and some fermion/anti-fermion pairs (τ, c, b, t), for different values of the coupling constants , , and . This is, in fact, a simple simulation of what the world might look like if and . The effects of the coupling strengths on particle masses are not considered. You can display any one or combination of decay modes by marking the corresponding checkboxes.


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[1] M. E. Peskin and D. V. Schroeder, An Introduction to Quantum Field Theory, Boulder, CO: Westview Press, 2005.
[2] V. D. Barger and R. J. N. Phillips, Collider Physics, updated ed., Reading, MA: Addison-Wesley, 1997.
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