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Humboldt-Universität zu Berlin - Faculty of Mathematics and Natural Sciences - Department of Physics

Humboldt-Universität zu Berlin | Faculty of Mathematics and Natural Sciences | Department of Physics | Colloquium | Colloquia | Department Colloquium: Prof. Cigdem Issever (Department of Physics, University of Oxford, United Kingdom)

Department Colloquium: Prof. Cigdem Issever (Department of Physics, University of Oxford, United Kingdom)

Lecture on: "Die Selbstgespräche des Higgs Bosons - Higgs Self-Coupling Measurement at the Large Hadron Collider"
When Jun 27, 2017 from 03:15 to 05:00 (Europe/Berlin / UTC200) iCal
Where Lise-Meitner-Haus, Christian-Gerthsen-Hörsaal, Newtonstraße 15, 12489 Berlin

Prof. Cigdem Issever (Department of Physics, University of Oxford, United Kingdom) will speak about "Die Selbstgespräche des Higgs Bosons - Higgs Self-Coupling Measurement at the Large Hadron Collider".

Abstract

The Standard Model of particle physics describes the elementary constituents of matter and their interactions. In 2012, its last ingredient, the Higgs boson, was discovered at the Large Hadron Collider (LHC). The exploration of the Higgs boson is now one of the most exciting avenues to explore for New Physics beyond the Standard Model and allows some of the most pressing problems in theoretical physics to be addressed, such as the origins of the electroweak symmetry breaking mechanism. This important mechanism gives elementary particles their masses but the nature of this mechanism remains a mystery.

An extensive program is now being carried out at the LHC to characterize the properties of the Higgs boson. A particularly crucial measurement is the production cross-section of Higgs boson pairs, which provides unique information on the Higgs self-coupling and on the underlying nature of the electroweak symmetry breaking mechanism. Furthermore the di-Higgs production rate can be dramatically modified by the presence of new physics and discoveries can be made early on. The small SM rate also makes this final state ideal for such searches for new physics. I will give an introduction to the Higgs mechanism and explain the importance of the Higgs self-coupling parameter. The presentation will conclude with an overview of the di-Higgs searches for new physics at the LHC and the future prospects to measure the Higgs self-coupling. If time allows I will also focus on advanced experimental techniques to identify Higgs bosons which decay into b-quark pairs.