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

- Institution: CERN
- Department: TH Theoretical Seminar
- Speaker: Patrick Meade
- Year: 2014
- Language: English
- Subjects: Physics
- Source: [CERN](https://videos.cern.ch/record/3016085)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

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..

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## Lectures

1. [Modeling Soft Gluons and Fiducial Cross Sections: New Physics or Old QCD?](https://invisiblenetwork.ai/learn/cern/3016085/a290a6aa12ed), 57 min (CERN's player)