17.11.2016; Vortrag
Seminar: Quartic Boson Couplings: one of the last yet unexplored chapters of the Standard Model
Redner
Michael Kobel (TU Dresden)
Even after the discovery of a Higgs Boson at CERN, a few basic processes predicted by the Standard Model remain to be observed, like the scattering of two Vector Bosons VV->VV, where V=W,Z. Observing for the first time this process and measuring its behavior will give a handle on the Quartic-Gauge-Boson vertex, having so far not contributed significantly to any observed particle physics process. Moreover, for not violating basics rules of probability ("unitarity") this scattering requires in the Standard Model the regulating contribution of a Higgs-Boson exchange. It thus constitutes a crucial test of the properties of the 125 GeV Higgs Boson, discovered in 2012 at the LHC, and of the mechanism of electroweak symmetry breaking. In the talk I will describe the effort for measuring this process with the 13 TeV pp collision data at the LHC, started during my 2016 sabbatical at CERN. Also, its future sensitivity for physics beyond the Standard Model, like anomalous quartic gauge couplings or the phenomenology of an additional strong fundamental interactions, will be discussed,which could e.g. manifest itself in new VV resonances or a composite structure of the Vector Bosons and/or the Higgs Boson.
Even after the discovery of a Higgs Boson at CERN, a few basic processes predicted by the Standard Model remain to be observed, like the scattering of two Vector Bosons VV->VV, where V=W,Z. Observing for the first time this process and measuring its behavior will give a handle on the Quartic-Gauge-Boson vertex, having so far not contributed significantly to any observed particle physics process. Moreover, for not violating basics rules of probability ("unitarity") this scattering requires in the Standard Model the regulating contribution of a Higgs-Boson exchange. It thus constitutes a crucial test of the properties of the 125 GeV Higgs Boson, discovered in 2012 at the LHC, and of the mechanism of electroweak symmetry breaking. In the talk I will describe the effort for measuring this process with the 13 TeV pp collision data at the LHC, started during my 2016 sabbatical at CERN. Also, its future sensitivity for physics beyond the Standard Model, like anomalous quartic gauge couplings or the phenomenology of an additional strong fundamental interactions, will be discussed,which could e.g. manifest itself in new VV resonances or a composite structure of the Vector Bosons and/or the Higgs Boson.
Zeit
15:00
-
16:00
Uhr
Ort
Andreas-Schubert-Bau ASB/E19
Adresse
Zellescher Weg 19
D-01069 Dresden
D-01069 Dresden