Jets with Variable R

Abstract

We introduce a new class of jet algorithms designed to return conical jets with a variable Delta R radius. A specific example, in which Delta R scales as 1/pT, proves particularly useful in capturing the kinematic features of a wide variety of hard scattering processes. We implement this Delta R scaling in a sequential recombination algorithm and test it by reconstructing resonance masses and kinematic endpoints. These test cases show 10-20% improvements in signal efficiency compared to fixed Delta R algorithms. We also comment on cuts useful in reducing continuum jet backgrounds.

20 pages, 8 figures, 7 tables

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Cited by in corpus (67)

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• Search for pair production of heavy vector-like quarks decaying into hadronic final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
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• Dedicated Strategies for Triboson Signals from Cascade Decays of Vector Resonances
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• Search for single production of vector-like $T$ quarks decaying into $Ht$ or $Zt$ in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• SHAPER: Can You Hear the Shape of a Jet?
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• The dependency of boosted tagging algorithms on the event colour structure
• Measurements of $WH$ and $ZH$ production with Higgs boson decays into bottom quarks and direct constraints on the charm Yukawa coupling in $13\mathrm{TeV}$ $pp$ collisions with the ATLAS detector
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• Dynamic Radius Jet Clustering Algorithm
• Searches for new physics with boosted top quarks in the MadAnalysis 5 and Rivet frameworks
• Tagging single Tops
• Search for singly produced vector-like top partners in multilepton final states with 139 ${\mathrm{fb}}^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV with the ATLAS detector
• Constraints on Higgs boson production with large transverse momentum using $H\to b\bar{b}$ decays in the ATLAS detector
• Constraints on simplified dark matter models involving an $s$-channel mediator with the ATLAS detector in $pp$ collisions at $\sqrt{s}=13$ TeV
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• Jet Timing
• LHC Implications of the WIMP Miracle and Grand Unification
• Search for a heavy resonance decaying into a top quark and a W boson in the lepton+jets final state at $\sqrt{s}=$13 TeV
• Search for new phenomena with top-quark pairs and large missing transverse momentum using 140 ${\mathrm{fb}}^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV with the ATLAS detector
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• Vetoed jet clustering: The mass-jump algorithm
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• Fat $b$-Jet Analyses Using Old and New Clustering Algorithms in New Higgs Boson Searches at the LHC
• Jet Substructure Probe on Scalar Leptoquark Models via Top Polarization
• Measurement of jet substructure in boosted $t\bar{t}$ events with the ATLAS detector using 140 fb${}^{-1}$ of 13 TeV $pp$ collisions
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• Inclusive production of X$\to b\bar{b}$ plus a recoil for the LHC Run-II