Münster 2017 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 54: Suche nach neuen Teilchen 3

T 54.1: Vortrag

Dienstag, 28. März 2017, 16:45–17:00, JUR 2

Model Unspecific Search in CMS - Introduction — •Tobias Pook, Deborah Duchardt, Thomas Hebbeker, Simon Knutzen, Jonas Lieb, Arnd Meyer, and Jonas Roemer — III. Physikalisches Institut A, RWTH Aachen University

The CMS Detector recorded a dataset of about 39fb⁻¹ during 2015 and 2016 at a center of mass energy of 13 TeV. This dataset presents a unique opportunity to find new phenomena. However no clear signs of physics beyond the Standard Model were detected yet and a broader view might be necessary to detect signals from not yet searched for or even thought of theories.

The majority of searches for new physics are optimized for an established signal hypothesis in one or few decay channels. These searches cover only a fraction of all observed final states with model dependent analysis strategies. The Model Unspecific Search in CMS (MUSiC) provides a unique procedure to prevent the CMS collaboration from missing new physics. This is ensured by an automated search for deviations between the measurement and standard model (SM) expectation after a complete detector simulation within every observed final state. Each event is categorized based on its object content (leptons, jets, etc.) in so called event classes. Distributions for three kinematic variables and their differential uncertainties are calculated and compared with the standard model expectation. This talk presents the motivation and methods used for the MUSiC analysis and gives an introduction to the interpretation of a global comparison of simulation and data.