Summary of new ATLAS results for ICHEP 2020
27 July 2020 | By
Since the 1950s, one conference has stayed circled in red on every physicist's calendar: the International Conference on High-Energy Physics (ICHEP). The fortieth edition of ICHEP kicks off today, bringing together particle physicists, astrophysicists and accelerator scientists to share the latest news in their fields. Originally planned as an in-person event in Prague, ICHEP2020 will instead be the very first all-virtual edition of the conference.
This year, the ATLAS Collaboration will unveil a wealth of new results using the full dataset recorded during Run 2 of the LHC (2015–2018). Look forward to exciting observations of new processes, high-precision measurements of the Higgs boson, record-breaking searches for new physics, and much more.
While several of these key results will explored in physics briefings, many more will be presented throughout the conference. Explore them all in the papers linked below, updated throughout the conference.
Latest ICHEP2020 News and Physics Briefings
- ATLAS highlights presented at the world's largest particle-physics conference, ATLAS News, 8 August 2020
- Rare phenomenon observed by ATLAS features the LHC as a high-energy photon collider, Press Statement, 5 August 2020
- ATLAS observes W-boson pair production from light colliding with light, Physics Briefing, 5 August 2020
- CERN experiments announce first indications of a rare Higgs boson process, Press Statement, 3 August 2020
- New ATLAS result marks milestone in the test of Standard Model properties, Physics Briefing, 3 August 2020
- New measurements of the Higgs boson find strength in unity, Physics Briefing, 31 July 2020
- Looking forward: ATLAS measures proton scattering when light turns into matter, Physics Briefing, 30 July 2020
- ATLAS probes interactions between heavyweights of the Standard Model, Physics Briefing, 30 July 2020
- Jetting into the dark side: a precision search for dark matter, Physics Briefing, 28 July 2020
- ATLAS one step closer in the search for rare Higgs boson decays to muons, Physics Briefing, 23 July 2020
For all news and physics briefings, follow the ICHEP2020 tag.
New results presented at ICHEP2020
Standard Model
- Observation of photon-induced W+ W– production in proton–proton collisions at 13 TeV using the ATLAS detector (ATLAS-CONF-2020-038)
- Observation and measurement of forward proton scattering in association with lepton pairs produced via the photon fusion mechanism at ATLAS (ATLAS-CONF-2020-041)
- Measurements of differential cross-sections in four-lepton events in 13 TeV proton-proton collisions with the ATLAS detector (ATLAS-CONF-2020-042)
- Measurement of the production cross-section of isolated photon pairs in proton-proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-024)
- Determination of the strong coupling constant and test of asymptotic freedom from Transverse Energy-Energy Correlations in multijet events at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-025)
- Differential cross-section measurements for the electroweak production of dijets in association with a Z boson in proton-proton collisions at ATLAS (arXiv:2006.15458, see figures)
- Measurement of hadronic event shapes in multijet final states at 13 TeV with the ATLAS detector (arXiv:2007.12600, see figures)
Higgs boson
- A search for the dimuon decay of the Standard Model Higgs boson with the ATLAS detector (arXiv: 2007.07830, see figures)
- Measurement of the properties of Higgs boson production at 13 TeV in the H → γγ channel using 139 fb-1 of proton–proton collision data with the ATLAS experiment (ATLAS-CONF-2020-026)
- Observation of vector-boson-fusion production of Higgs bosons in the H→WW→eνμν decay channel in proton–proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-045)
- Search for Higgs boson production in association with a high-energy photon via vector boson fusion with decay to bottom quark pairs at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-044)
- A combination of measurements of Higgs boson production and decay using up to 139 fb−1 of proton–proton collision data at 13 TeV collected with the ATLAS experiment (ATLAS-CONF-2020-027)
Top and bottom quarks
- Measurement of the tt production cross-section in the lepton+jets channel at 13 TeV with the ATLAS experiment (arXiv: 2006.13076, see figures)
- Measurements of top-quark pair single- and double-differential cross-sections in the all-hadronic channel in proton–proton collisions at 13 TeV using the ATLAS detector (arXiv: 2006.09274, see figures)
- Measurements of inclusive and differential cross-sections of combined ttγ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector (arXiv: 2007.06946, see figures)
- Measurements of the inclusive and differential production cross sections of a top-quark-antiquark pair in association with a Z boson at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-028)
- Combination of the ATLAS, CMS and LHCb results on the B0(s) → μμ decays (ATLAS-CONF-2020-049)
Exotic New Physics
- Search for pairs of scalar leptoquarks decaying into quarks and electrons or muons in 13 TeV proton–proton collisions with the ATLAS detector (arXiv: 2006.05872, see figures)
- Search for dark matter in association with an energetic photon in proton–proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-020)
- Search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ-lepton in proton–proton collisions 13 TeV with the ATLAS detector (ATLAS-CONF-2020-029)
- Search for pair production of scalar leptoquarks decaying to first or second generation leptons and boosted hadronically decaying top quarks in proton–proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-033)
- Search for dark matter produced in association with a dark Higgs boson decaying to W±W∓ or ZZ in fully hadronic final states using proton–proton collisions at 13 TeV recorded with the ATLAS detector (ATLAS-CONF-2020-036)
- Lepton Flavour Violation at the LHC: a search for Z→eτ and Z→μτ decays with the ATLAS detector (ATLAS-CONF-2020-035)
- Search for new phenomena in events with jets and missing transverse momentum in proton-proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-048)
- Search for type-III seesaw heavy leptons in dilepton final states in proton–proton collisions at 13 TeV with the ATLAS detector (EXOT-2018-33)
- Search for dark matter associated production with a single top quark in 13 TeV (proton–proton) collisions with the ATLAS detector (ATLAS-CONF-2020-034)
Supersymmetry
- Search for squarks and gluinos in final states with an isolated lepton, jets, and missing transverse momentum at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-047)
- Search for new phenomena in events with two oproton–protonosite-charge leptons, jets and missing transverse momentum in proton–proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-046)
- Search for bottom-squark pair production in proton–proton collision events at 13 TeV with hadronically decaying tau leptons, b-jets and missing transverse momentum using the ATLAS detector (ATLAS-CONF-2020-031)
- Search for supersymmetry in events with four or more leptons in 139fb−1 13 TeV proton–proton collisions with the ATLAS detector (ATLAS-CONF-2020-040)
Scalar boson and diboson searches
- Search for resonances decaying to photon pairs in 139 fb-1 of proton–proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-037)
- Search for heavy resonances decaying into a pair of Z bosons in the llll and llνν final states using 139 fb-1 of proton-proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-032)
- Search for heavy resonances decaying to a photon and a hadronically decaying Higgs boson in proton–proton collisions at 13 TeV with the ATLAS detector (HDBS-2018-17)
- Search for heavy resonances decaying into a Z boson and a Higgs boson in final states with leptons and b-jets in 139 fb−1of proton–proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2020-043)
- Search for a charged Higgs boson decaying into a top and a bottom quarks at 13 TeV in the ATLAS detector (ATLAS-CONF-2020-039)
Luminosity and Performance
- Luminosity determination for low-pileup datasets at 5 and 13 TeV using the ATLAS detector at the LHC (ATLAS-CONF-2020-023)
- Muon reconstruction and identification efficiency in ATLAS using the full Run-2 pp collision data set at 13 TeV (ATLAS-CONF-2020-030)
