HIPARCOS Emmy Noether Independent Junior Research Group
The Higgs boson as a bridge between Particle Physics and Cosmology
Journal publications
[9] Spyros Argyropoulos, Ulrich Haisch, Ilia Kalaitzidou, "Novel collider signatures in the type-I 2HDM+a model", [arXiv:2404.05704]
[8] Rikkert Frederix, Tetiana Moskalets, "Five-flavour scheme predictions for ttbb at next-to-leading order accuracy", [arXiv:2403.14419]
[7] ATLAS Collaboration, "Search for a CP-odd Higgs boson decaying into a CP-even Higgs boson and a Z boson in the lltt and vvbb final states using 140/fb of data collected with the ATLAS detector", JHEP 02 (2024) 197 [arXiv:2311.04033]
[6] ATLAS Collaboration, "Combination and summary of ATLAS dark matter searches interpreted in a 2HDM with a pseudoscalar mediator using 139/fb of 13 TeV pp collision data" [arXiv:2306.00641]
[5] Spyros Argyropoulos, Clare Burrage, Christoph Englert, "Environmentally aware displaced vertices" [arXiv:2304.08118]
[4] Spyros Argyropoulos, Ulrich Haisch, "Benchmarking LHC searches for light 2HDM+a pseudoscalars", SciPost Phys. 13, 007 (2022) [arXiv:2202.12631]
[3] Spyros Argyropoulos, Oleg Brandt, Ulrich Haisch, "Collider searches for dark matter through the Higgs lens", Symmetry 2021 13 (12) 2406 [arXiv:2109.13597]
[2] ATLAS Collaboration, "Search for dark matter produced in association with a Standard Model Higgs boson decaying into b-quarks using the full Run 2 dataset from the ATLAS detector", JHEP 11 (2021) 209 [arXiv:2108:13391]
[1] ATLAS Collaboration, "Measurements of WH and ZH production in the H→bb decay channel in pp collisions at 13 TeV with the ATLAS detector", Eur. Phys. J. C 81 (2021) 178 [arXiv:2007.02873]
ATLAS notes
[C6] ATLAS Collaboration, "Dark matter summary plots for s-channel, 2HDM+a Higgs portal and Dark Higgs models", ATL-PHYS-PUB-2023-018
[C4] ATLAS Collaboration, "Reweighting heavy flavor production fractions to reduce flavor modelling uncertainties for ATLAS", ATL-PHYS-PUB-2022-035
[C5s] ATLAS Collaboration, "Search for a CP-odd Higgs boson decaying to a heavy CP-even Higgs boson and a Z boson in the lltt and vvbb final states using 140 fb-1 of data collected with the ATLAS detector", ATLAS-CONF-2023-034 - superseded by [7]
[C3s] ATLAS Collaboration, "Dark matter summary plots for s-channel, 2HDM+a and Dark Higgs models", ATL-PHYS-PUB-2022-036 - superseded by [C6]
[C2s] ATLAS Collaboration, "Combination and summary of ATLAS dark matter searches using 139 fb-1 of 13 TeV pp collision data and interpreted in a two-Higgs-doublet model with a pseudoscalar mediator", ATLAS-CONF-2021-036 - superseded by [6]
[C1s] ATLAS Collaboration, “Search for Dark Matter produced in association with a Standard Model Higgs boson decaying to b-quarks using the full Run 2 collision data with the ATLAS detector", ATLAS-CONF-2021-006 - superseded by [2]
Presentations at international conferences
[IC6] Spyros Argyropoulos, "Constraining electroweak baryogenesis models with searches for cascade decays of heavy Higgs bosons in ATLAS", (Invited talk) Corfu 2023, 29/8/2023
[IC5] Spyros Argyropoulos, "Recent results and future prospects for Dark Matter searches at the LHC. A view from the LHCDMWG", (Invited talk) DM 2023, 30/5/2023
[IC4] Spyros Argyropoulos, "Searches for Dark Matter in extended Higgs sectors", (Invited talk, video) Corfu 2022, 28/8/2022
[IC3] Ilia Kalaitzidou, "The heavy flavour production fraction reweighting procedure in ATLAS", 41st International Conference on High Energy Physics, Bologna, ATL-PHYS-SLIDE-2022-318 (Poster)
[IC2] Tetiana Moskalets, "Top properties (including mass) at ATLAS and CMS", 56th Rencontres de Moriond, Electroweak Interactions & Unified Theories, 14/3/2022
[IC1] Spyros Argyropoulos, "Probing the dark sector with b-quarks with the ATLAS detector", 55th Rencontres de Moriond, Electroweak Interactions & Unified Theories, 25/3/2021
Presentations at national conferences/workshops
[ΒΟΝ1] Spyros Argyropoulos, "Searches for Dark Matter at the LHC", (Invited talk) University of Bonn, Particle Physics seminars, Bonn, 11/4/2024
[DPG3] Ilia Kalaitzidou, "Unravelling dark matter with novel collider signatures in Type I 2HDM+a", DPG spring meeting 2024, Karlsruhe, 6/3/2024
[WEB1] Spyros Argyropoulos, "Collider searches for dark matter through the Higgs lens", (Invited talk) Symmetry webinar, 5/10/2023 [video]
[LLP1] Spyros Argyropoulos, "Environmentally aware displaced vertices as a probe of the dark sector", LPP13, CERN, 23/6/2023
[GRK3] Ilia Kalaitzidou, "The heavy-flavour production fraction reweighting procedure in ATLAS", Graduiertenkolleg 2044 Fall workshop, Freiburg, 30/9/2021 (Poster)
[GRK2] Roman Küsters, "Search for A→ZH→lltt with the ATLAS detector", Graduiertenkolleg 2044 Fall workshop, Freiburg, 28/9/2022
[HEP2] Ilia Kalaitzidou, "Search for A→ZH→vvbb/lltt at 13 TeV with the ATLAS detector", HEP2022, Thessaloniki, 16/6/2022
[HEP1] Spyros Argyropoulos, "Searches for Dark Matter in extended Higgs sectors", HEP2022, Thessaloniki, 15/6/2022
[DPG2] Ilia Kalaitzidou, "Search for A→ZH→vvbb with the ATLAS detector", DPG spring meeting 2022, Heidelberg, 23/3/2022
[DPG1] Roman Küsters, "Search for A→ZH→lltt with the ATLAS detector", DPG spring meeting 2022, Heidelberg, 23/3/2022
[GRK1] Roman Küsters, "Search for A→ZH→lltt with the ATLAS detector", Graduiertenkolleg 2044 Fall workshop, Freiburg, 28/9/2021 (Poster)
Previous publications related to the project
[P1] ATLAS Collaboration, “Constraints on mediator-based dark matter and scalar dark energy models using √s = 13 TeV pp collision data collected by the ATLAS detector”, [arXiv:1903.01400] JHEP 05 (2019) 142
[P2] ATLAS Collaboration, “Observation of H → bb and VH production with the ATLAS detector”, Phys. Lett. B786 (2018) 59, [arXiv:1808.08238]
[P3] ATLAS Collaboration, “Search for heavy resonances decaying to a W or Z boson and a Higgs boson in final states with leptons and b-jets in 36.1 fb−1 of pp collision data at √s=13 TeV with the ATLAS detector. [arXiv:1712.06518] JHEP 03 (2018) 174
[P4] ATLAS Collaboration, “Evidence for the H → bb decay with the ATLAS detector”, JHEP12(2017)024 [arXiv:1708.03299]
[P5] ATLAS Collaboration, “Search for a CP-odd Higgs boson decaying to Zh in pp collisions at √s=13 TeV with the ATLAS detector”, ATLAS-CONF-2016-015, http://cds.cern.ch/record/2141003
[P6] Spyros Argyropoulos, Torbjörn Sjöstrand, “Effects of color reconnection on tt final states at the LHC”, [arXiv:1407.6653] JHEP 11 (2014) 043