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SUMMARY:Higgs boson physics and LHC phenomenology in an inverted-hierarchy
  flavor symmetry model
DTSTART;VALUE=DATE-TIME:20140705T084500Z
DTEND;VALUE=DATE-TIME:20140705T090000Z
DTSTAMP;VALUE=DATE-TIME:20260820T001534Z
UID:indico-contribution-823@indico.ific.uv.es
DESCRIPTION:Speakers: Edmond BERGER (Argonne National Laboratory\, USA)\n\
 \begin{abstract}\nThe LHC phenomenology of a low-scale gauged flavor symme
 try model with inverted hierarchy is studied. A new scalar (a flavon) emer
 ges with mass in the TeV range along with a new heavy fermion associated w
 ith the standard model top quark.  After verifying the constraints from el
 ectroweak precision observables\,  we investigate the influence of the mod
 el on Higgs boson physics notably its production cross section and decay b
 ranching fractions.  Limits on the flavon $s$ from heavy Higgs boson searc
 hes at the LHC at 7 and 8 TeV are presented.  The branching fractions of t
 he flavon are computed as a function of the flavon mass and the Higgs-flav
 on mixing angle. We also explore possible discovery \nof the flavon at 14 
 TeV\, particularly the $s \\rightarrow Z^0Z^0$ decay channel in the $2\\el
 l2\\ell'$ final state\, and standard model \nHiggs boson pair production $
 s \\rightarrow hh$ in the $b\\bar{b}\\gamma\\gamma$ final state.   We conc
 lude that the flavon mass range up to $500$ GeV could probed down to quite
  small values of the Higgs-flavon \nmixing angle with 300 fb$^{-1}$ of int
 egrated luminosity at 14 TeV. \n\\end{abstract}\n\nhttps://indico.ific.uv.
 es/event/2025/contributions/823/
LOCATION: Auditorium 1
URL:https://indico.ific.uv.es/event/2025/contributions/823/
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