Karlsruhe 2011 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 18: Beyond the Standard Model (Theorie) III

T 18.2: Vortrag

Donnerstag, 31. März 2011, 17:00–17:15, 30.23: 6-1

The Production of Heavy Spin-1 Resonances at the LHC — •Franziska Schissler and Dieter Zeppenfeld — IThP, Karlsruhe Institute of Technology, 76128 Karlsruhe, Germany

Without a Higgs boson, weak-boson scattering amplitudes grow with the center-of-mass energy, eventually violating unitarity. A possibility to delay this problem, besides a Higgs boson, is the exchange of heavy spin-1 resonances (m≲ 1 TeV). In the fermiophobic limit, they can only be detected via vector-boson fusion. If one permits non-vanishing couplings to the (light) fermions, Drell-Yan and vector-boson-pair production via heavy spin-1 resonances become important discovery channels.

We study the sensitivity of the individual channels as function of the couplings of these new resonances to SM-matter. A model-independent approach, based on sum-rules, allows us to find the most promising production channel. For a parton-level analysis, we have implemented these processes in the Monte Carlo program VBFNLO.