2020/12/17 by Aoife Bharucha, Bharucha, A., Giacomo Cacciapaglia +11
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.2012.09470
openalex publication_date 2020/12/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The next generation electron-positron colliders are designed for precision\nstudies of the Standard Model and its extensions, in particular in the Higgs\nsector. We consider the potential for discovery of composite Higgs models in\nHiggs pair production through photon collisions. This process is\nloop-generated, thus it provides access to all Higgs couplings and can show new\nphysics effects in polarized and unpolarized cross-sections starting at\nrelatively low collider energies. It is, therefore, relevant for all\nelectron-positron colliders planned or in preparation. Sizeable deviations from\nthe Standard Model predictions are present in a general class of composite\nHiggs models, as couplings of one or more Higgs bosons to fermions, or\nfermionic and scalar resonances, modify the destructive interference present in\nthe Standard Model. In particular, large effects are due to the new quartic\ncoupling of the Higgs to tops and to the presence of a light scalar resonance.\n