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Showing 1 to 6 of 6 for “"Jet substructure"”.
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Photon isolation and jet substructure
… a new photon isolation criterion inspired by jet substructure techniques. Soft drop isolation is collinear-safe and is equivalent to Frixione isolation at leading order in the small R limit. However, soft drop isolation has the interesting feature of being democratic, meaning that photons can …
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Jet substructure at the Large Hadron Collider
… we use the CMS Open Data to study the 2-prong substructure of jets. We use CMS's particle flow reconstruction algorithm to obtain jet constituents, which we then use to perform various jet substructure studies. After validating our basic kinematics and substructure results through a comparison …
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Particles Inside Particles: The Flow of Energy in Quarks, Gluons, and Jets
… in developing probes of the inner structure of jets in high-energy particle collisions. We begin by introducing QCD and the scattering of partons (quarks and gluons), discussing jets as theoretical and experimental proxies for partonic physics, and presenting the partonic cascade model of jet …
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Exclusive cone jet algorithms for high energy particle colliders
In this thesis, I develop an exclusive cone jet algorithm based on the principles of jet substructure and demonstrate its use for physics analyses at the Large Hadron Collider. Based on the event shape N-jettiness, this algorithm, called "XCone," partitions the event into a fixed number of conical …
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New Tools In The Search For Supersymmetry
… conserving supersymmetry. Then we use other jet substructure techniques to look for signals of Rparity violating supersymmetry. Lastly, we use the SUSY-Yukawa sum rule to look beyond the phenomenology and probe the crucial cancellation of divergences at the heart of supersymmetric theories.
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Search for new hadronically decaying resonances with masses down to 20 GeV in pp collisions using the ATLAS Detector at the Large Hadron Collider
… lowest-mass resonances to produce overlapping jets that are best reconstructed as a single large-radius jet. Precise large-radius jet reconstruction down to very low masses is thus a crucial requirement of the search. However, the standard Run 2 large-radius jet definition is only calibrated …