Motti Intermediate Physics - HAL: CU-1 - Coupling the Standard Model to HAL - Post I-prime, the Higgs Portal, and the Complete Lₜotal

Key Points

• The aim is to couple the Standard Model to HAL without introducing new free parameters.
• Three-step embedding of U(1)_C within U(1)_Y and appending SM Yang-Mills.
• Inclusion of the Higgs portal with a specific coupling constant kappa.
• Sustaining the unchanged sin^2(theta_W) in the overall model.
• Predicted Higgs mass m_H^HAL = 125.706 GeV (+456 MeV) based on the model.
• Branching ratio for invisible Higgs decay BR(H->invisible) = 0, indicating significant mass disparity.
• No free parameters introduced during the coupling process.