Atlas@Clermont-Ferrand

Romain Madar

Chargé de Recherche / Researcher (CNRS)
Habilité à Diriger des Recherches
Responsable adjoint de l'équipe / Deputy team leader

Bureau / office 8205
Téléphone +33 (0)4 73 40 71 57
mail

https://orcid.org/0000-0002-6875-6408

→Site web

Member of the Atlas collaboration since 2011, member of Atlas@Clermont since 2014.

Contributions in the Atlas@Clermont team

Responsable de : Mesure de précision sur le quark top et interprétation par EFT / Top quark precision measurements and EFT interpretation, as leader
Nouveau détecteur HGTD pour le HL-LHC / New HGTD detector for HL-LHC (Phase II)
Diffusion de la science / Outreach
Recherche de nouvelle physique avec deux leptons de même signe / Search for new physics with two same-sign leptons (ended, was leader)
Développement du circuit FATALIC pour le HL-LHC / The FATALIC chip for HL-LHC (Phase II) (ended, was leader)
Amélioration du TileCal pour le HL-LHC / TileCal upgrade for the HL-LHC (Phase II) (not anymore)
R&D TileCal pour le HL-LHC / TileCal R&D for the HL-LHC (Phase II) (not anymore)

List of publications →all

D. Boumediene et al, Measurement of Single Event Effect cross section induced by monoenergetic protons on a 130 nm ASIC, JINST 17 (2022) P02007 (arXiv:2112.05720)
ATLAS Collaboration, Measurement of the tt̄tt̄ production cross section in pp collisions at √s=13 TeV with the ATLAS detector, JHEP 11 (2021) 118 (arXiv:2106.11683)
J. Abdallah et al, Study of energy response and resolution of the ATLAS Tile Calorimeter to hadrons of energies from 16 to 30 GeV, EPJC 81 (2021) 549 (arXiv:2102.04088)
ATLAS Collaboration, Evidence for tt̄tt̄ production in the multilepton final state in proton-proton collisions at √s=13 TeV with the ATLAS detector, EPJC 80 (2020) 1085 (arXiv:2007.14858)
D. Abercrombie et al, Dark Matter Benchmark Models for Early LHC Run-2 Searches: Report of the ATLAS/CMS Dark Matter Forum, Phys. Dark Univ. 26 (2019) 100371 (arXiv:1507.00966)
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, JHEP 05 (2019) 142 (arXiv:1903.01400)
ATLAS Collaboration, Search for four-top-quark production in the single-lepton and opposite-sign dilepton final states in pp collisions at √s=13 TeV with the ATLAS detector, PRD 99, 052009 (2019) (arXiv:1811.02305)
S. Angelidakis et al, FATALIC: A novel CMOS front-end readout ASIC for the ATLAS Tile Calorimeter, JINST 13 P12013 (arXiv:1809.00225)
ATLAS Collaboration, Search for new phenomena in events with same-charge leptons and b-jets in pp collisions at √s=13 TeV with the ATLAS detector, JHEP 12 (2018) 039 (arXiv:1807.11883)
S. Angelidakis et al, FATALIC: A fully integrated electronics readout for the ATLAS tile calorimeter at the HL-LHC, NIM A 936 (2019) 316-318
F. Vazeille on behalf of the ATLAS Tile Calorimeter system, Performance of a remote High Voltage power supply for the Phase II upgrade of the ATLAS Tile Calorimeter, JINST 11 C02050

List of public notes →all

ATLAS Collaboration, Observation of quantum entanglement in top-quark pair production using pp collisions at 13 TeV with the ATLAS detector, ATLAS-CONF-2023-069
ATLAS Collaboration, Measurement of the tt̄tt̄ production cross section in pp collisions at √s=13 TeV with the ATLAS detector, ATLAS-CONF-2021-013
ATLAS Collaboration, Technical Design Report: A High-Granularity Timing Detector for the ATLAS Phase-II Upgrade, CERN-LHCC-2020-007
ATLAS Collaboration, Evidence for tt̄tt̄ production in the multilepton final state in proton-proton collisions at √s=13 TeV with the ATLAS detector, ATLAS-CONF-2020-013
ATLAS Collaboration, Technical Design Report for the Phase-II Upgrade of the ATLAS Tile Calorimeter, CERN-LHCC-2017-019
ATLAS Collaboration, Search for new physics using events with b-jets and a pair of same charge leptons in 3.2 fb^-1 of pp collisions at √s=13 TeV with the ATLAS detector, ATLAS-CONF-2016-032

Talks or posters in conferences →all

Top reconstruction and spin correlations, Poster,
Top LHC France 2021
Top LHC France
Distantiel, 6-7 avril 2021
BSM searches with the top quark at the LHC, Talk,
IRN Terascale 2020
IRN Terascale
online, 5-6 novembre 2020
Search for Vector-Like Quarks in ATLAS, Talk,
SUSY2018
26th International Conference on Supersymmetry and Unification of Fundamental Interactions
Barcelone, Espagne, 23-27 juillet 2018
FATALIC: a fully integrated electronics for the ATLAS tile calorimeter at the HL-LHC, Poster,
Pisa2018
14th Pisa meeting on Advanced Detectors
La Biodola, Italie, 27 mai - 2 juin 2018
, ATL-TILECAL-PROC-2018-005
Review of New Phenomena Searches in the Top Quark Sector with the ATLAS detector, Talk,
LIO2016
LIO international conference on Composite Models
Electroweak Physics and the LHC
Searches for new physics with lepton flavors and multi-lepton final states with the ATLAS detector, Talk,
ICNFP2015
4th International Conference on New Frontiers in Physics
Crète, Grèce, 23-30 août 2015
, ATL-PHYS-PROC-2015-142

List of internal notes →all

A. Tnourji, R. Madar, High-Granularity Timing Detector in ATLAS: Simulation study of T0 calibration, ATL-HGTD-INT-2022-001
L. Rustige, R. Madar, Study of noise and efficiency loss effects on calorimeter-tagged muons for HL-LHC, ATL-TILECAL-INT-2019-001
S. Angelidakis et al, Performance of FATALIC v5, ATL-TILECAL-INT-2018-003
E. Nibigira, R. Madar, Simulation of FATALIC Front-end Electronics in the ATLAS Tile Calorimeter Software, ATL-TILECAL-INT-2018-004
W. Barbe, R. Madar, S. Calvet, Simulation of FATALIC for signal reconstruction, ATL-TILECAL-INT-2018-002
S. Senkin et al, Signal Reconstruction with FATALIC, ATL-TILECAL-INT-2017-002
R. Bonnefoy et al, Performances of a Remote High Voltage Power Supply for the Phase II Upgrade of the ATLAS Tile Calorimeter, ATL-TILECAL-INT-2015-005

Responsibilities in the ATLAS collaboration

Past responsibilities →all

June 2021-June 2023: HGTD online time calibration (coordinator)
April 2021-May 2023: Higgs to tautau CP invariance analysis editorial board (member) article
February 2020-December 2021: Top quark spin correlation with run 2 data (contact)
February 2018-September 2019: Search for SM 4tops events analysis at 13 TeV (contact) article
January 2018-June 2019: TileCal upgrade steering group (member)
January 2018-June 2019: TileCal upgrade simulation and performance group (coordinator)
March 2018-November 2018: Search for SM 4tops events combination group (2015+2016 data) (editor) article
February 2016-August 2018: Same-sign dilepton analysis at 13 TeV (contact, editor) conf article
February 2018-May 2018: Search for type-III seesaw heavy leptons analysis editorial board (member) conf

Supervision of students

Ph.D. students →all

A. Tnourji, Time calibration of the High Granularity Timing Detector and measurement of top quarks spin correlation with the ATLAS detector., November 2022, directed by R. Madar
L. Rustige, First evidence of standard model pp→tt̄tt̄ production and performance studies of the ATLAS tile calorimeter for HL-LHC (co-tutelle avec Technische Universität Dortmund), October 2020, directed by R. Madar, K. Kröninger (TUD)
E. Nibigira, Recherche d'un boson massif W' se désintégrant en un quark top et un quark b avec le détecteur ATLAS au LHC
(co-financement de la Région Auvergne-Rhône-Alpes), November 2019, directed by J. Donini, R. Madar
W. Barbe, Recherche de résonances se désintégrant en paire de quarks top-antitop avec l'expérience ATLAS, September 2019, directed by S. Calvet, D. Pallin, with R. Madar

Undergraduate students →all

Lucas Llompart (M1 Physique Fondamentale et Applications, Université Paris Cité ), Spin correlation and quantum entanglement studies with spins of top quark pairs produced at the LHC, May-July 2022
Safae Nejjari (M1 Physique Fondamentale et Applications, Université Clermont Auvergne), Top quark production for different initial states, April-June 2021
Arthur Lafarge (M1 Physique Fondamentale et Applications, Université Clermont Auvergne), Constraining new phenomena with spin correlations in top-antitop events with ATLAS, April-June 2021
Mikaël Leroy (L3 Physique, Université Pierre et Marie Curie (Paris 6)), Etude préliminaire pour l'observation de la production de quatre quarks top au LHC, May-June 2017
Théo Megy (M2 Physique des particules, Université Blaise Pascal), Recherche de matière noire dans le secteur du quark top, February-June 2015

Last update on 2024-01-11


L'équipe	Nos activités
Documents	Opportunités