Heavy neutral scalar decays into electroweak gauge bosons in the Littlest Higgs Model

2017/01/18 by J. I. Aranda, I. Cortes-Maldonado, S. Montejo-Montejo +2
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1088/1361-6471/aa5be0

12 pages and 8 figures. arXiv admin note: text overlap with arXiv:1501.04988

arxiv created 2017/01/18 · arxiv updated 2017/04/05

Abstract

We study the heavy neutral scalar decays into standard model electroweak gauge bosons in the context of the Littlest Higgs model. We focus our attention on the Φ⁰ → WW, γV processes induced at the one-loop level, with V=γ, Z. Since the branching ratios of the Φ⁰ → γV decays result very suppressed, only the Φ⁰ → WW process is analyzed in the framework of possible experimental scenarios by using heavy scalar masses between 1.6 TeV until 3.3 TeV. The branching ratio for the Φ⁰ → WW decay is of the order of 10^-3 throughout the interval 2 TeV < f < 4 TeV, which represent the global symmetry breaking scale of the theory. Thus, it is estimated the associated production cross section for the pp→ Φ⁰ X→ WW, finding around ten events for m_Φ⁰≈ 1.6 TeV at best.

Citations

• The Z_H → γH decay in the Littlest Higgs Model