Theory Colloquia

Modeling Soft Gluons and Fiducial Cross Sections: New Physics or Old QCD?

by Patrick Meade (Stony Brook University)

Europe/Zurich
4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110
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Description
In this talk I will describe some of the consequences of the consistently discrepant WW cross section measured at ATLAS and CMS. I will describe models where stops can be as light as 200 GeV satisfying naturalness constraints. I will also discuss the current states of the art modeling of QCD effects in the measurement of the cross section using p_T resummation. I will show that there is a sizable effect caused by a jet veto in extrapolating to the total cross section, but ultimately not enough to explain the current discrepancy.
Slides
Video in CDS