Probing lepton flavor triality with Higgs boson decay

Journal Article · Sun May 01 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.093012· OSTI ID:21541585

Qinghong, Cao ^[1]; Damanik, Asan ^[2]; Ma, Ernest; Wegman, Daniel ^[3]

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1. High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Department of Physics, Sanata Dharma University, Yogyakarta (Indonesia)
3. Department of Physics and Astronomy, University of California, Riverside, California 92521 (United States)

If neutrino tribimaximal mixing is explained by a non-Abelian discrete symmetry such as A{sub 4}, T{sub 7}, {Delta}(27), etc., the charged-lepton Higgs sector has a Z{sub 3} residual symmetry (lepton flavor triality), which may be observed directly in the decay chain H{sup 0}{yields}{psi}{sub 2}{sup 0}{psi}{sub 2}{sup 0}, then {psi}{sub 2}{sup 0}({psi}{sub 2}{sup 0}){yields}l{sub i}{sup +}l{sub j}{sup -}(i{ne}j), where H{sup 0} is a standard-model-like Higgs boson and {psi}{sub 2}{sup 0} is a scalar particle needed for realizing the original discrete symmetry. If kinematically allowed, this unusual and easily detectable decay is observable at the LHC with 1 fb{sup -1} for E{sub cm}=7 TeV.

• OSTI ID: 21541585
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 9; Other Information: DOI: 10.1103/PhysRevD.83.093012; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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