Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 76: Higgs-Zerfälle in Bosonen

T 76.6: Vortrag

Donnerstag, 28. März 2019, 17:15–17:30, H04

Measurement of CP properties in the gluon fusion production of the Higgs boson with the CMS detector — •Jordy Degens, Günter Flügge, Olena Hlushchenko, Wolfgang Lohmann, Thomas Müller, Dennis Roy, Hale Sert, Achim Stahl, and Alexander Zotz — III. Physikalisches Institut B, RWTH Aachen University

After the discovery of the Higgs boson a measurement of its quantum numbers is of crucial interest. One of the quantum numbers to be measured is the CP state of the Higgs boson. Although recent measurements disfavor a CP odd coupling, a CP odd admixture is not excluded. Measuring a CP odd admixture would result in CP violation in the Higgs sector. In this talk a search for CP odd couplings in the gluon fusion production of the Higgs boson is presented using the correlation of radiated jets. The decay of the Higgs boson into two tau leptons, where the di-tau pair decays semileptonically, is used to select Higgs signal events. A statistical analysis using data collected by the CMS detector in 2017 with an integrated luminosity of 41.5 fb−1 is performed.

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