Higgs Decays to Muons in Weak Boson Fusion

We investigate the muonic decay of a light Higgs boson, produced in weak boson fusion at future hadron colliders. We find that this decay mode would be observable at the CERN LHC only with an unreasonably large amount of data, while at a 200 TeV vLHC this process could be used to extract the muon Yukawa coupling to about the 10% level, or better if significant improvements in detector design can be achieved.Comment: 8 pages, Latex2e, Revtex, 8 figure

Charged Higgs production with a top in MC@NLO

The production in association with a top quark is the most promising search channel for charged Higgs bosons at the LHC. We review its theoretical description including next-to-leading order corrections and the combination with a parton shower. The latter allows us to for the first time answer questions about the kinematics of all jets in the process. We then describe the consistent subtraction of intermediate states and present new results about the bottom mass uncertainty impacting the parton densisities.Comment: Proceedings `Prospects for Charged Higgs Discovery at Colliders', including new results on bottom mass induced uncertainty, on-shell subtraction, and reference cross section

Next-to-leading order QCD corrections to Higgs production at a future lepton-proton collider

Crucial information on the coupling of the Higgs boson to bottom quarks is expected from Higgs production in association with a forward tagging jet at a future high-energy lepton-proton collider. In order to control the theoretical uncertainties of the signal process, the impact of radiative corrections has to be quantified. We present the full next-to-leading order QCD corrections to e- p -> e- j H and e- p -> nu_e j H in the form of a flexible Monte-Carlo program allowing for the calculation of cross sections and kinematic distributions within experimentally feasible selection cuts. QCD corrections are found to be very small for cross sections, while the shape distortion of distributions can be as large as 20%. Residual scale uncertainties at next-to-leading order are at the permille level.Comment: 15 pages, 14 figure

Innovation, Firm Size, and R&D Search

We present evidence that small firms perform two to four times more innovations per dollar of R&D than large firms. We propose a search theory of R&D that accounts for the evidence. A firm incurs R&D expenses until it has discovered a level of R&D productivity that is sufficiently great to warrant stopping the search. We show that because the large number of R&D projects run by a large firm becomes a substitute for enhanced R&D productivity, the average R&D productivity of a firm is decreasing in firm size.

SUSY parameter determination

The impact of the LHC, SLHC and the ILC on the precision of the determination of supersymmetric parameters is investigated. In particular, in the point SPS1a the measurements performed at the ILC will improve by an order of magnitude the precision obtained by the LHC alone. The SLHC with respect to the LHC has the potential to reduce the errors by a factor two.Comment: Invited talk at 2005 International Linear Collider Physics and Detector Workshop and Second ILC Accelerator Workshop, Snowmass, CO(Snowmass05) 3 pages, LaTe