Separation of Quark and Gluon Jets using Angularities

14 Jan 2022, 15:30
10m
IFJ PAN

IFJ PAN

Henryk Niewodniczański Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN), 152 Radzikowskiego Street, Cracow, Poland

Speaker

Petr Baron (IFJ Pan Krakow)

Description

As a result of hadronization, the partons (quarks and gluons) are being observed via objects called jets which represent energy deposits in clustered calorimeters with associated jet reconstruction algorithm. This study investigates the determination of the initial parton from which the jet evolved based on five variables called angularities. Having a discriminant on an event-by-event basis could enhance the reach for Beyond Standard Model since most of the signal regions are being dominated by quarks and on the other hand in the Standard Model signal regions are populated mostly by gluons. The results provide an evaluation of the most suitable angularity with respect to the jet radius, beam energy, and trimming techniques, which can be the starting point for novel measurement at the Large Hadron Collider at CERN.

Primary author

Petr Baron (IFJ Pan Krakow)

Presentation materials