Abstract
We study the discovery prospects of the charged Higgs boson in the context of multi Higgs models in certain BSM scenarios. We classify models into three categories based on the charged Higgs coupling properties: gaugophobic, fermiophobic, and chromophobic. In each case, we identify viable modes of discovery, and present LHC analysis for discovery. We find that extensions of the Standard Model in which the charged Higgs does not couple to colored particles offer the best possible avenues for discovery.
Highlights
The Standard Model (SM) [1] of particle physics has been a phenomenal success in describing three of the four fundamental forces, and myriad experiments have firmly established its particle content and, to a large extent, the couplings involved
We present the cut flow chart for the 2j þ 2b þ lν channel for both the chromophobic and leptophobic scenarios choosing mHÆ 1⁄4 500 GeV in Table III imposing the cuts discussed in the preceding paragraphs—we see that the progressive kinematic cuts have done a good job in Initial Nj ≥ 2 Nl 1⁄4 1 Nb 1⁄4 3 HT ≥ 400 GeV pTðj1Þ ≥ 75 GeV pTðb1Þ ≥ 75 GeV ðmHÆ − 100Þ GeV ≤ mbbjj ≤ ðmHÆ þ 100Þ GeV
While the branching ratios for each case need to be calculated separately, for the purposes of efficient organization of the results, it is useful to note that the charged Higgs boson in both classes of signals is produced either via associated production or as the decay product of a heavier scalar H
Summary
The Standard Model (SM) [1] of particle physics has been a phenomenal success in describing three of the four fundamental forces, and myriad experiments have firmly established its particle content and, to a large extent, the couplings involved. A attractive avenue along the latter lines is one that involves enlarging the scalar sector of the SM—this can be done in a variety of ways introducing additional Higgs fields that transform under the electroweak gauge group. The simplest of such models involves introducing an additional Higgs doublet, with both Higgs fields participating in EWSB. One could look for enlarged spectra with the Higgs field in representations other than the doublet under SUð2ÞL While such theories are typically constrained by a variety of theoretical and experimental factors [17], there are many nonminimal representations that are phenomenologically interesting.
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