Search for New Phenomena in Dijet Mass and Angular Distributions from $pp$ Collisions at $\sqrt{s}$ = 13 TeV with the ATLAS Detector

Abstract

This Letter describes a model-agnostic search for pairs of jets (dijets) produced by resonant and non-resonant phenomena beyond the Standard Model in 3.6 fb${}^{-1}$ of proton-proton collisions with a centre-of-mass energy of $\sqrt{s}=13$ TeV recorded by the ATLAS detector at the Large Hadron Collider. The distribution of the invariant mass of the two leading jets is examined for local excesses above a data-derived estimate of the smoothly falling prediction of the Standard Model. The data are also compared to a Monte Carlo simulation of Standard Model angular distributions derived from the rapidity of the two jets. No evidence of anomalous phenomena is observed in the data, which are used to exclude, at 95% CL, quantum black holes with threshold masses below 8.3 TeV, 8.1 TeV, or 5.3 TeV in three different benchmark scenarios; resonance masses below 5.2 TeV for excited quarks, 2.6 TeV in a $W^{\prime }$ model, a range of masses starting from $m_{Z^{\prime }}=1.5$ TeV and couplings from $g_q=0.2$ in a $Z^{\prime }$ model; and contact interactions with a compositeness scale below 12.0 TeV and 17.5 TeV respectively for destructive and constructive interference between the new interaction and QCD processes. These results significantly extend the ATLAS limits obtained from 8 TeV data. Gaussian-shaped contributions to the mass distribution are also excluded if the effective cross-section exceeds values ranging from approximately 50-300 fb for masses below 2 TeV to 2-20 fb for masses above 4 TeV.

20 pages plus author list + cover pages (38 pages total), 6 figures, 1 table, submitted to PLB, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2015-02/

References in corpus (10)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Parton distributions for the LHC
• New parton distributions for collider physics
• Search for new phenomena in the dijet mass distribution using $p-p$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector
• Search for narrow resonances decaying to dijets in proton-proton collisions at sqrt(s) = 13 TeV
• Black Holes and Quantum Gravity at the LHC
• BlackMax: A black-hole event generator with rotation, recoil, split branes and brane tension
• Colorful quantum black holes at the LHC
• On hypothesis testing, trials factor, hypertests and the BumpHunter
• Search for New Phenomena in Dijet Angular Distributions in Proton-Proton Collisions at $\sqrt{s}=8$ TeV Measured with the ATLAS Detector

Cited by in corpus (126)

• Jet energy scale measurements and their systematic uncertainties in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for new phenomena in dijet events using 37 fb${}^{-1}$ of $pp$ collision data collected at $\sqrt{s}=$13 TeV with the ATLAS detector
• Phenomenology of a 750 GeV Singlet
• Scenarii for interpretations of the LHC diphoton excess: two Higgs doublets and vector-like quarks and leptons
• Search for narrow and broad dijet resonances in proton-proton collisions at $\sqrt{s}=$ 13 TeV and constraints on dark matter mediators and other new particles
• Phenomenology of an $SU(2)\times SU(2)\times U(1)$ model with lepton-flavour non-universality
• Search for high mass dijet resonances with a new background prediction method in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for dijet resonances in proton-proton collisions at sqrt(s) = 13 TeV and constraints on dark matter and other models
• Corrections to the thermodynamics of Schwarzschild-Tangherlini black hole and the generalized uncertainty principle
• Quantum corrections to the thermodynamics of Schwarzschild-Tangherlini black hole and the generalized uncertainty principle
• Dijet resonance search with weak supervision using $\sqrt{s}=13$ TeV $pp$ collisions in the ATLAS detector
• Search for narrow resonances in dijet final states at sqrt(s) = 8 TeV with the novel CMS technique of data scouting
• Precise predictions for dijet production at the LHC
• Snowmass 2021 whitepaper: Proton structure at the precision frontier
• Di-photon resonance around 750 GeV: shedding light on the theory underneath
• Quirky Explanations for the Diphoton Excess
• Neutrino Jets from High-Mass $W_R$ Gauge Bosons in TeV-Scale Left-Right Symmetric Models
• Search for dark matter at colliders
• How to save the WIMP: global analysis of a dark matter model with two s-channel mediators
• A resonance without resonance: scrutinizing the diphoton excess at 750 GeV
• Interpreting the 750 GeV Di-photon Resonance using photon-jets in Hidden-Valley-like models
• Searches for light sterile neutrinos with multitrack displaced vertices
• Trinification can explain the di-photon and di-boson LHC anomalies
• Majorana Higgses at colliders
• Neutrino mixing and $R_K$ anomaly in $U(1{)}_X$ models: a bottom-up approach
• Di-photon Excess Explained by a Resonant Sneutrino in R-parity Violating Supersymmetry
• LHC multijet events as a probe for anomalous dimension-six gluon interactions
• Constraining minimal anomaly free $\mathrm{U}(1)$ extensions of the Standard Model
• Search for light resonances decaying to boosted quark pairs and produced in association with a photon or a jet in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• The experimental status of direct searches for exotic physics beyond the standard model at the Large Hadron Collider
• Squarkonium, diquarkonium and octetonium at the LHC and their di-photon decays
• Constraints on Z' models from LHC dijet searches and implications for dark matter
• 750 GeV diphotons from closed string states
• Higgs bosons with large couplings to light quarks
• Search for new physics in dijet angular distributions using proton-proton collisions at $\sqrt{s}=$ 13 TeV and constraints on dark matter and other models
• Toward a coherent solution of diphoton and flavor anomalies
• Recommendations of the LHC Dark Matter Working Group: Comparing LHC searches for heavy mediators of dark matter production in visible and invisible decay channels
• Unsupervised clustering for collider physics
• Search for low-mass resonances decaying into two jets and produced in association with a photon using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Precision Probes of QCD at High Energies
• Dark matter in U(1) extensions of the MSSM with gauge kinetic mixing
• Search for resonances in the mass distribution of jet pairs with one or two jets identified as $b$-jets in proton--proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for low mass vector resonances decaying to quark-antiquark pairs in proton-proton collisions at sqrt(s) = 13 TeV
• Collider limits on new physics within micrOMEGAs4.3
• Lepton Number Violation at Colliders from Kinematically Inaccessible Gauge Bosons
• Search for dark matter in proton-proton collisions at 8 TeV with missing transverse momentum and vector boson tagged jets
• A Comprehensive Framework for Studying $W^{\prime }$ and $Z^{\prime }$ Bosons at Hadron Colliders with Automated Jet Veto Resummation
• Study of weak corrections to Drell-Yan, top-quark pair and dijet Production at high energies with MCFM
• Searching for left sneutrino LSP at the LHC
• The Diphoton and Diboson Excesses in a Left-Right Symmetric Theory of Dark Matter
• Search for narrow resonances in the b-tagged dijet mass spectrum in proton-proton collisions at $\sqrt{s}=$ 8 TeV
• Search for strong gravity in multijet final states produced in pp collisions at $\sqrt{s}=$ 13 TeV using the ATLAS detector at the LHC
• Diphoton Excess in Consistent Supersymmetric SU(5) Models with Vector-like Particles
• Search for lepton-flavor violation in different-flavor, high-mass final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Future Collider Signatures of the Possible 750 GeV State
• Photon collider search strategy for sleptons and dark matter at the LHC
• Testing the 2-TeV Resonance with Trileptons
• Dark Matter and Collider Studies in the Left-Right Symmetric Model with Vector-Like Leptons
• $Z^{\prime }$ portal to Chern-Simons Dark Matter
• Diphoton excess in phenomenological spin-2 resonance scenarios
• Search for new phenomena with photon+jet events in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for black holes and sphalerons in high-multiplicity final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Consistent Searches for SMEFT Effects in Non-Resonant Dijet Events
• Search for Mono-Higgs Signals at the LHC in the B-L Supersymmetric Standard Model
• Search for black holes and other new phenomena in high-multiplicity final states in proton-proton collisions at sqrt(s) = 13 TeV
• Search for heavy resonances decaying to a photon and a hadronically decaying $Z/W/H$ boson in $pp$ collisions at $\sqrt{s}=13$ $\mathrm{TeV}$ with the ATLAS detector
• Search for new physics with dijet angular distributions in proton-proton collisions at sqrt(s) = 13 TeV
• Search for resonances in the mass distribution of jet pairs with one or two jets identified as $b$-jets in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for new phenomena in different-flavour high-mass dilepton final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Interpreting a 750 GeV Diphoton Resonance
• Search for lepton flavour violating decays of heavy resonances and quantum black holes to an e-mu pair in proton-proton collisions at sqrt(s) = 8 TeV
• Constraining Right Handed Gauge Boson Mass from Lepton Number Violating Meson Decays in a Low Scale Left Right Model
• Model-agnostic search for dijet resonances with anomalous jet substructure in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for dijet resonances in events with an isolated charged lepton using $\sqrt{s}=13$ TeV proton-proton collision data collected by the ATLAS detector
• Electroweak symmetry breaking and collider signatures in the next-to-minimal composite Higgs model
• Collider signals of $W^{\prime }$ and $Z^{\prime }$ bosons in the gauge-Higgs unification
• Search for new phenomena in high-mass final states with a photon and a jet from $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Testing a dynamical origin of Standard Model fermion masses
• Precision searches in dijets at the HL-LHC and HE-LHC
• Collider Tests of (Composite) Diphoton Resonances
• The ATLAS Diboson Resonance in Non-Supersymmetric SO(10)
• Color-octet Companions of a 750 GeV Heavy Pion
• Scalar scattering from black holes with tidal charge
• Resonant slepton production and right sneutrino dark matter in left-right supersymmetry
• Production of exotic composite quarks at the LHC
• Unitarisation of EFT Amplitudes for Dark Matter Searches at the LHC
• Search for new physics in events with high jet multiplicity and low missing transverse momentum in proton-proton collisions at sqrt(s) = 8 TeV
• Pursuit of paired dijet resonances in the Run 2 dataset with ATLAS
• Hadron Collider Searches for Diboson Resonances
• Enhancing the hunt for new phenomena in dijet final-states using anomaly detection filters at the High-Luminosity Large Hadron Collider
• A constrained supersymmetric left-right model
• Phenomenology of dark matter in chiral U(1)${}_X$ dark sector
• Direct Constraints, Flavor Physics, and Flavor Anomalies in Composite Higgs Models
• Prospects for new physics in $\tau \to l\mu \mu$ at current and future colliders
• Combination of Run-1 Exotic Searches in Diboson Final States at the LHC
• Blind Spots for Direct Detection with Simplified DM Models and the LHC
• Search for leptophobic Z' bosons decaying into four-lepton final states in proton-proton collisions at sqrt(s) = 8 TeV
• Electromagnetic absorption, emission and scattering spectra of black holes with tidal charge
• Mono-jet Signatures of Gluphilic Scalar Dark Matter
• A Megaxion at 750 GeV as a First Hint of Low Scale String Theory
• Simplified Limits on Resonances at the LHC
• Strategy to measure tau $g-2$ via photon fusion in LHC proton collisions
• Unification and New Particles at the LHC
• Excited Quarks Production at FCC and S$pp$C $pp$ Colliders
• Lower limit on the gravitino mass in low-scale gauge mediation with $m_H\simeq 125$GeV
• Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at $\sqrt{s}=13$ TeV with the ATLAS detector
• Resurgence of $Z^{\prime }$ from the single electron-muon event at ATLAS
• Model-independent searches for new physics in multi-body invariant masses
• QCD corrections to massive color-octet vector boson pair production
• Dark Matter phenomenology : from simplified WIMP models to refined alternative solutions
• Phenomenology of an $SU(2{)}_1\times SU(2{)}_2\times U(1{)}_Y$ model at the LHC
• Signal-background interference for digluon resonances at the Large Hadron Collider
• Improving Heavy Dijet Resonance Searches Using Jet Substructure at the LHC
• Weakly supervised anomaly detection for resonant new physics in the dijet final state using proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Angular observables for spin discrimination in boosted diboson final states
• Search for new resonances decaying to pairs of merged diphotons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for quantum black hole production in lepton+jet final states using proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Light Sterile Neutrino and Low Scale Left-Right Symmetry in D-brane inspired $SU(4{)}_C\times SU(2{)}_L\times SU(2{)}_R$
• Quantum black holes in the horizon quantum mechanics model at the Large Hadron Collider
• A note on blind technique for new physics searches in particle physics
• A model for the LHC diboson excess
• OmniLearned: A Foundation Model Framework for All Tasks Involving Jet Physics
• Mass distributions of dijet resonances from excited quarks at proton-proton colliders
• Simplified Limits on New LHC Resonances
• Large Extra Dimensions at LHC Run 2
• High-$p_T$ multi-jet final states at ATLAS and CMS