Measurement of the 𝑡𝑡 ̅ spin correlations, top quark polarization and related angular variables

13 Jul 2021, 14:45
15m
Track I (Zoom)

Track I

Zoom

talk Top Quark Physics Top Quark

Speaker

Abraham Mathew Koshy (Purdue University (US))

Description

The ongoing CMS analysis on the measurement of the full spin density production matrix, which includes multi-differential measurements of variables sensitive to the top quark spin correlation, polarization and related angular observables, is presented. Events containing two leptons, two b-jets and additional jets, as well as missing transverse momentum produced in proton-proton collisions at a center-of-mass energy of 13 TeV are considered. The data corresponds to an integrated luminosity of 137/fb collected with the CMS detector at the LHC. Results are used to challenge Standard Model predictions and also to indirectly search for contributions of new physics.

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Primary authors

Abraham Mathew Koshy (Purdue University (US)) Andreas Jung (Professor) Giulia Negro Jason R Thiemann (PhD student)

Presentation materials