Heather E. Logan

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We show how LHC Higgs boson production and decay data can be used to extract gauge and fermion couplings of Higgs bosons. We show that very mild theoretical assumptions, which are valid in general multi-Higgs doublet models, are sufficient to allow the extraction of absolute values for the couplings rather than just ratios of the couplings. For Higgs masses(More)
The decoupling properties of the Higgs sector in the Minimal Supersymmetric Standard Model (MSSM) imply that a light CP-even Higgs boson discovered at the Tevatron or LHC may closely resemble the Standard Model (SM) Higgs boson. In this paper, we investigate how precision measurements of Higgs properties at a Linear Collider (LC) can distinguish between a(More)
We study the supersymmetric (SUSY) QCD radiative corrections, at the one-loop level, to h 0 , H ± and t quark decays, in the context of the Minimal Supersymmetric Standard Model (MSSM) and in the decoupling limit. The decoupling behaviour of the various MSSM sectors is analyzed in some special cases, where some or all of the SUSY mass parameters become(More)
BACKGROUND With the introduction, development and commercialization of Cone Beam Computerized Tomography (CBCT) technologies in the field of head and neck reconstruction, clinicians now have increased access to the technology. Given the growth of this new user group, there is an increasing concern regarding proper use, understanding, quality and patient(More)
This report reviews the properties of Higgs bosons in the Standard Model (SM) and its various extensions. We give an extensive overview about the potential of the ILC operated at centre-of-mass energies up to 1 TeV (including the γγ option) for the determination of the Higgs boson properties. This comprises the measurement of the Higgs boson mass, its(More)
We explore the radiative corrections to the process Z → b ¯ b in models with extended Higgs sectors. The observables R b and A b are sensitive to these corrections. R b is the hadronic branching fraction of Z bosons to b ¯ b, R b = Γ(Z → b ¯ b)/Γ(Z → hadrons). A b is the b quark asymmetry, A b = (g 2 L − g 2 R)/(g 2 L + g 2 R) where g L and g R are the left(More)
BACKGROUND Surgical design and simulation (SDS) is a useful tool to help surgeons visualize the anatomy of the patient and perform operative maneuvers on the computer before implementation in the operating room. While these technologies have many advantages, further evidence of their potential to improve outcomes is required. The present benchtop study was(More)
BACKGROUND It is important to understand the perceived value of surgical design and simulation (SDS) amongst surgeons, as this will influence its implementation in clinical settings. The purpose of the present study was to examine the application of the convergent interview technique in the field of surgical design and simulation and evaluate whether the(More)