Same Sign WW Scattering Process as a Probe of Higgs Boson in pp Collision at $\sqrt{s}$ = 10 TeV

Abstract

WW scattering is an important process to study electroweak symmetry breaking in the Standard Model at the LHC, in which the Higgs mechanism or other new physics processes must intervene to preserve the unitarity of the process below 1 TeV. This channel is expected to be one of the most sensitive to determine whether the Higgs boson exists. In this paper, the final state with two same sign Ws is studied, with a simulated sample corresponding to the integrated luminosity of 60 fb${}^{-1}$ in pp collision at $\sqrt{s}=$10 TeV. Two observables, the invariant mass of $\mu \mu$ from W decays and the azimuthal angle difference between the two $\mu$s, are utilized to distinguish the Higgs boson existence scenario from the Higgs boson absence scenario. A good signal significance for the two cases can be achieved. If we define the separation power of the analysis as the distance, in the log-likelihood plane, of pseudo-experiments outcomes in the two cases, with the total statistics expected from the ATLAS and CMS experiments at the nominal centre-of-mass energy of 14 TeV, the separation power will be at the level of 4 $\sigma$.

arXiv comment5 pages, 4 figures, 3 tables

References in corpus (8)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• MadEvent: Automatic Event Generation with MadGraph
• Automatic Generation of Tree Level Helicity Amplitudes
• LHC Analysis of the Strongly Interacting $WW$ System: Gold-Plated Modes
• PHANTOM: a Monte Carlo event generator for six parton final states at high energy colliders
• Boson-boson scattering and Higgs production at the LHC from a six fermion point of view: four jets + l$\nu$ processes at $Ø({\alpha }_{em}^6)$
• Electroweak Symmetry Breaking Circa 2005

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