Searching for diboson resonances in the boosted all-hadronic final state at $\sqrt{\mathrm{s}}=13$ TeV with CMS

Abstract

This article summarises three searches for diboson resonances in the all-hadronic final state using data collected at a center-of-mass energy of $\sqrt{\mathrm{s}}=13$ TeV with the CMS experiment at the CERN LHC. The boson decay products are contained in one large-radius jet, resulting in dijet final states which are resolved using jet substructure techniques. The analyses presented use 2.3, 35.9 and 77.3 inverse femtobarns of data collected between 2015 and 2017. These include the first search for diboson resonances using data collected at a 13 TeV collision energy, the introduction of a new algorithm to tag vector bosons in the context of analyzing the data collected in 2016, and the development of a novel multidimensional fit improving on the sensitivity of the previous search method with up to $30\%$. The results presented here are the most sensitive to date of diboson resonance searches in the dijet final state. An emphasis on improvements in technique for vector boson tagging is made.

arXiv comment23 pages, 16 figures. Preprint, final version published in MPLA, 17 July 2020

References in corpus (25)

• A Large Mass Hierarchy from a Small Extra Dimension
• The anti-k_t jet clustering algorithm
• Asymptotic formulae for likelihood-based tests of new physics
• Better Jet Clustering Algorithms
• Identifying Boosted Objects with N-subjettiness
• Soft Drop
• Kernel Estimation in High-Energy Physics
• Towards an understanding of jet substructure
• Composite Higgses
• Techniques for improved heavy particle searches with jet substructure
• Warped Gravitons at the LHC and Beyond
• On the effect of resonances in composite Higgs phenomenology
• Searching for the Kaluza-Klein Graviton in Bulk RS Models
• Thinking outside the ROCs: Designing Decorrelated Taggers (DDT) for jet substructure
• Search for production of $WW/WZ$ resonances decaying to a lepton, neutrino and jets in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Searches for Dijet Resonances at Hadron Colliders
• Search for resonant diboson production in the $\ell \ell q\bar{q}$ final state in pp collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Search for WZ resonances in the fully leptonic channel using pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• Search for new resonances decaying via WZ to leptons in proton-proton collisions at sqrt(s) = 8 TeV
• Search for diboson resonances with boson-tagged jets in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for massive resonances decaying into WW, WZ, ZZ, qW, and qZ with dijet final states at $\sqrt{s}=$ 13 TeV
• Search for heavy resonances decaying to a $W$ or $Z$ boson and a Higgs boson in the $q{\bar{q}}^{(\prime )}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• A multi-dimensional search for new heavy resonances decaying to boosted WW, WZ, or ZZ boson pairs in the dijet final state at 13 TeV
• Search for heavy resonances in the W/Z-tagged dijet mass spectrum in pp collisions at 7 TeV
• Combination of CMS searches for heavy resonances decaying to pairs of bosons or leptons