Model-independent and quasi-model-independent search for new physics at CDF

Model-independent and quasi-model-independent search for new physics at CDF

Sleuth: a Quasi-model-independent Search Strategy for New Physics

How can we search for new physics when we only vaguely know what it should look like? How can we perform an unbiased yet data-driven search? If we see apparently anomalous events in our data, how can we quantify their “interestingness” a posteriori? We present an analysis strategy (sleuth) that simultaneously addresses each of these questions, and we demonstrate its application to over thirty e...

A quasi-model-independent search for new electroweak scale physics

These proceedings describe Sleuth, a quasi-model-independent search strategy targeting new electroweak scale physics, and its application to 927 pb of CDF II data. Exclusive final states are analyzed for an excess of data beyond the Standard Model prediction at large summed scalar transverse momentum ( P pT ). This analysis of highP pT data represents one of the most encompassing searches so fa...

Results of a Model-independent Global Search for New Physics at Cdf

Data collected in Run II of the Fermilab Tevatron are searched for indications of new electroweak-scale physics. Rather than focusing on particular new physics scenarios, CDF data are analyzed for discrepancies with the Standard Model prediction. A model-independent approach (Vista) considers gross features of the data, and is sensitive to new large crosssection physics. Further sensitivity to ...

Model Independent Search For New Physics At The Tevatron

The Standard Model of elementary particles can not be the final theory. There are theoretical reasons to expect the appearance of new physics, possibly at the energy scale of few TeV. Several possible theories of new physics have been proposed, each with unknown probability to be confirmed. Instead of arbitrarily choosing to examine one of those theories, this thesis is about searching for any ...