485 research outputs found
Leptophilic neutral Higgs bosons in two Higgs doublet model at a linear collider
This paper addresses the question of observability of neutral Higgs bosons
through the leptonic decay in a two Higgs doublet model (2HDM). Both scalar and
pseudoscalar Higgs bosons () are considered. The model is set to type IV
to enhance the leptonic decay. In such a scenario, a signal production process
like or would provide
a clear signal on top of the background in a di-muon invariant mass
distribution far from the boson pole mass. The analysis is based on a
-id algorithm which preselects events if they have two jets by
requiring a hadronic decay. Several benchmark points are defined for the
search, requiring a linear collider operating at 0.5 and 1 TeV. It
is shown that the signal can be observed on top of the background in all
benchmark points at an integrated luminosity of 1000
Possibility of tanbeta measurement in CMS at LHC
The achievable tanbeta determination accuracy for CMS at LHC is presented.
Using MSSM H/A->tau tau decay in the associated production process gg->bbH/A
the event rates are measured at large tanbeta and the systematic and
statistical errors are estimated. Due to sensitivity of the above event rates
to tanbeta it is shown that it is possible to determine constraints on tanbeta
for a given set of SUSY parameters and uncertainties.Comment: 5 pages, 4 figures, presented in the Rencontre de Moriond, QCD
Conference 200
Observability of Inert Scalars at the LHC
In this work we investigate the observability of Inert Doublet Model scalars
at the LHC operating at the center of mass energy of 14 TeV. The signal
production process is leading to two different
final states of and based on
the hadronic and leptonic decay channels of the W boson. All the relevant
background processes are considered and an event selection is designed to
distinguish the signal from the large Standard Model background. We found that
signals of the selected search channels are well observable at the LHC with
integrated luminosity of 300 fb.Comment: v2: 10 pages, 9 figures and 9 table
Search for heavy neutral CP-even Higgs within Type-IV 2HDM at a future linear collider
In this paper, the production process is analyzed
in the context of the type IV 2HDM and the question of observability of a
neutral CP-even Higgs boson at a linear collider operating at
TeV is addressed. The CP-odd Higgs is assumed to experience a gauge-Higgs decay
as with hadronic decay of boson as the signature of
signal events. The production chain is thus where is a or . Four
benchmark points with different mass hypotheses are assumed for the analysis.
The Higgs mass is assumed to vary within the range 150-300 GeV in
increments of 50 GeV. The anti- algorithm is used to perform the jet
reconstruction. Results indicate that the neutral CP-even Higgs is
observable through this production mechanism using the di-muon invariant mass
distribution with possibility of mass measurement. The corresponding signal
significances exceed at integrated luminosity of 3000 .Comment: 23 pages, 18 figures, 10 table
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