15th International Workshop on Boosted Object Phenomenology, Reconstruction, Measurements, and Searches at Colliders

Session

Advanced Taggers

3 Aug 2023, 15:20

Auditorium (50)

Conveners

Advanced Taggers

• Johan Sebastian Bonilla
• Gregor Kasiescka

107. PAIReD jet: A calibratable, Lorentz-boost independent, multi-pronged resonance tagger

Dr Spandan Mondal (Brown University (US))

03/08/2023, 15:20

Several jet flavor identification strategies have been employed to identify jets originating from heavy-flavor quarks and from the decay of heavy Lorentz-boosted objects. Often, separate tagging strategies are utilized for different Lorentz-boost regimes of the target physics object. For instance, in searches for the Higgs boson decaying into a pair of heavy-flavor quarks, a division is made...

133. Techniques for hadronic decays of ultra-heavy resonances decaying to vector-like quark pairs

Ethan Cannaert

03/08/2023, 15:40

Decays of ultra-heavy resonances of masses up to 8 TeV represent some of the heaviest particles that could be produced at the Run II LHC. Many such models describe these heavy resonances decaying to pairs of vector-like quarks (VLQs) with the fully-hadronic channels generally having the largest branching fraction. While giving the largest event yield, the extreme level of jet collimation and...

81. Jet SIFT-ing: a new scale-invariant jet clustering algorithm for the substructure era

Prof. Joel Walker (Sam Houston State University)

03/08/2023, 16:00

We describe a new jet clustering algorithm named SIFT (Scale-Invariant Filtered Tree) that maintains the resolution of substructure for collimated decay products at large boosts. The scale-invariant measure combines properties of kT and anti-kT by preferring early association of soft radiation with a resilient hard axis, while avoiding the specification of a fixed cone size. Integrated...

105. Mass aware jet clustering with Variable-R and a soft drop veto

Anna Benecke (UC Louvain)

03/08/2023, 16:20

We present results using an optimized jet clustering with variable $R$, where the jet distance parameter $R$ depends on the mass and transverse momentum $p_T$ of the jet. The jet size decreases with increasing $p_T$, and increases with increasing mass. This choice is motivated by the kinematics of hadronic decays of highly Lorentz boosted top quarks, W, Z, and H bosons. The jet clustering...

103. Study for jet flavor tagging with recent Neural Network

Masahiro Morinaga (The University of Tokyo, International Center for Elementary Particle Physics.)

03/08/2023, 16:40

Jets are the most familiar and complex physical objects in high-energy physics experiments.
Since jets invariably appear in critical elementary particle processes, identifying their origin has become an essential technique for physical analysis, including new particle searches and precision measurements.
Many particles are produced in jets, detected by particle detectors, and reconstructed...