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Measurement of cross sections for production of a Z boson in association with a flavor-inclusive or doubly b-tagged large-radius jet in proton-proton collisions at Formula Presented with the ATLAS experiment

Jackson P.
•
Kong A. X. Y.
•
Oliver J. L.
altro
Tipton P.
2023
  • journal article

Periodico
PHYSICAL REVIEW D
Abstract
We present measurements of cross sections for production of a leptonically decaying Z boson in association with a large-radius jet in 13 TeV proton-proton collisions at the LHC, using 36 fb - 1 of data from the ATLAS detector. Integrated and differential cross sections are measured at particle level in both a flavor inclusive and a doubly b -tagged fiducial phase space. The large-radius jet mass and transverse momentum, its kinematic relationship to the Z boson, and the angular separation of b -tagged small-radius track jets within the large-radius jet are measured. This measurement constitutes an important test of perturbative quantum chromodynamics in kinematic and flavor configurations relevant to several Higgs boson and beyond-Standard-Model physics analyses. The results highlight issues with modeling of additional hadronic activity in the flavor-inclusive selection, and a distinction between flavor-number schemes in the b -tagged phase space.
DOI
10.1103/PhysRevD.108.012022
WOS
WOS:001055270000001
Archivio
https://hdl.handle.net/11390/1265784
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85173651854
https://ricerca.unityfvg.it/handle/11390/1265784
Diritti
open access
google-scholar
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