Physics

Dr. Saranya Ghosh
RWTH Aachen University)

Abstract: The Standard Model (SM) of particle physics is the established theory describing fundamental particles and their interactions; however the shortcomings of the SM, such as its inability to explain gravitational interactions, dark matter, matter-antimatter asymmetry in the universe etc., have motivated theories of beyond the Standard Model (BSM) physics and their experimental search.
Such experimental searches are typically developed around specific BSM predictions, with the investigated final states and kinematic selections being chosen based on the sensitivity to a few limited models. The limitations on such dedicated search analyses due to experimental resources & person-power, the sizeable number & variety of proposed BSM physics models, and the large datasets collected by the experiments at the LHC motivate the  development of generalised model independent approaches to search for BSM physics. Furthermore, a model independent search is potentially sensitive to unforeseen physics phenomena that have not been included in the currently theorised models. This talk will discuss the Model Unspecific Search in CMS (MUSiC) analysis that searches hundreds of different final states for anomalies in data that can be probed for new physics phenomena based purely on the comparison of the recorded data to the expectation according to the SM, obtained from simulations. The search strategy and the results of the MUSiC analysis using 35.9fb−1 of data recorded by the CMS detector at the CERN LHC during proton-proton collisions at a centre-of-mass energy of 13 TeV will be presented.

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