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SUMMARY:Overview of ATLAS jet measurements - Jennifer Roloff (BNL)
DTSTART:20200204T160000Z
DTEND:20200204T170000Z
UID:TALK137194@talks.cam.ac.uk
CONTACT:William Fawcett
DESCRIPTION:The inner structure of jets is sensitive to QCD across a wide 
 range of scales\, from the perturbative parton shower down to non-perturba
 tive hadronization effects. This information has been used in many searche
 s for distinguishing between different types of jets\, but it has been cha
 llenging to produce theoretical predictions for these substructure observa
 bles due to the presence of non-global logarithms. Recent advances in jet 
 grooming algorithms have made it possible to produce calculations beyond l
 eading logarithmic accuracy for jet substructure observables for the first
  time at a hadron collider. I will discuss the measurement of the Soft Dro
 p jet mass using data from the ATLAS experiment\, which was the first meas
 urement of a substructure observable which could be compared to theoretica
 l predictions beyond leading logarithmic accuracy. I will then discuss the
  implications of this work\, including the possibilities for Monte Carlo t
 uning as well as measurements of Standard Model parameters.
LOCATION:Ryle Seminar Room (Rutherford 930) 
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