Mar 23 – 27, 2020
Brooklyn, NY
US/Eastern timezone

Measurements of the underlying event at ATLAS

Mar 25, 2020, 5:36 PM
22m
Brooklyn, NY

Brooklyn, NY

333 Adams Street, Brooklyn, New York 11201, USA
Contributed Talk QCD with Heavy Flavors and Hadronic Final States QCD with Heavy Flavors and Hadronic Final States

Speaker

Lennart ADAM

Description

In order to perform precise Standard Model measurements or to search for new physics phenomena at hadron colliders, it is important to have a good understanding of not only the short-distance hard scattering process, but also of the accompanying activity – collectively termed the underlying event. In this talk we present a study of the ​underlying event activity in events containing a Z-boson in √s=13 TeV data collected by the ATLAS experiment. Unfolded differential cross sections are presented for charged particle multiplicity and charged particle transverse momentum in regions of azimuth measured with respect to the Z-boson direction. If available, ​a study of the ​underlying event activity will be also presented for events where strange particles are identified in √s=13 TeV data. In both measurements, the data are compared to a wide variety of predictions from Monte Carlo event generators.

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