HEP 2021 - 38th Conference on Recent Developments in High Energy Physics and Cosmology, Thessaloniki, Greece

16 Jun 2025, 10:00 → 19 Jun 2025, 19:55 Europe/Athens

HEP 2021 - 38th Conference on Recent Developments in High Energy Physics and Cosmology, Thessaloniki, Greece

https://indico.cern.ch/event/1020541/

Conference Webinar ROOM 

https://authgr.zoom.us/j/93764778385?pwd=MUtiR1dhMW9uR21IWVZaYWJ4TlA1QT09

Parallel Session ROOM -Theory, Thursday, 17 June ONLY

https://authgr.zoom.us/j/98860831382?pwd=ejlkVllOSEZUYjhpRHpiSk12NG1wUT09

PARALLEL Theory  ZOOM meeting ROOM   https://authgr.zoom.us/j/92710084751

 

 

Monday 16 June

10:55 → 13:05 Plenary 1 Wed 16/6

Convener: Chariclia Petridou (Aristotle University of Thessaloniki (GR))

10:55 Welcome from the LOC

11:05 Highlights and perspectives from the ATLAS experiment

Speaker: Marumi Kado (Max Planck Society (DE))

11:45 CMS Highlights

Speaker: Gautier Hamel de Monchenault (IRFU, CEA, Université Paris-Saclay (FR))

12:25 Testing the Cosmological Principle

Speaker: Subir Sarkar (University of Oxford)

13:05 → 13:15 Coffee Break

13:15 → 15:15 Plenary 2, Wed 16/6: Plenary 2

Convener: Spyros Tzamarias (Aristotle University of Thessaloniki (GR))

13:15 Model-building Inflation and Dark Energy

Speaker: Konstantinos Dimopoulos

13:55 Present and Future developments of Accelerators for particle physics research and beyond

Speaker: Yannis Papaphilippou (CERN)

14:35 High Intensity Frontier Physics at the European Spallation Source

Speaker: Marcos Dracos

15:15 → 15:55 Lunch break

15:55 → 17:40 Plenary 3, Wed 16/6

Convener: Manolis Dris (National Technical Univ. of Athens (GR))

15:55 (g-2)_μ : Is the end of the Standard Model nigh?

Speaker: Thomas Teubner

16:35 g-2 and EDM measurements and their impact to the discovery of New Physics

Speaker: Yannis Semertzidis (IBS/CAPP and KAIST in Republic of Korea (South Korea))

17:15 Probing Muon g-2 in SUSY GUTs with LHC-Run3 and Dark Matter Experiments

Speaker: Cem Salih Un (Bursa Uludag University)

17:40 → 17:55 Coffee Break

17:55 → 21:55 Experiment I

Conveners: Aristoteles Kyriakis (Nat. Cent. for Sci. Res. Demokritos (GR)), Dimos Sampsonidis (Aristotle University of Thessaloniki (GR))

17:55 Development of processors for triggering high energy physics experiments

Speaker: Ioannis Bestintzanos (University of Ioannina (GR))

18:15 Hermes - A robust, low latency, optical link protocol for synchronous data transfer at commercial asynchronous line rates

Speaker: Kosmas Adamidis (University of California Los Angeles (US))

18:35 NEWS-G: Search for Light Dark Matter with a Spherical Proportional Counter

Speaker: Patrick Ryan Knights (University of Birmingham)

18:55 Characterisation and fiducialisation capabilities of an ACHINOS multi-anode sensor for NEWS-G

Speaker: Georgios Savvidis (Queen's University)

19:15 Search for physics beyond the standard model in final states with two or three soft leptons and missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Speakers: Ioanna Papavergou (National and Kapodistrian University of Athens (GR)), Manos Vourliotis (Univ. of California San Diego (US))

19:35 Measurement of the double differential dijet mass cross section at 13 TeV with CMS

Speaker: Polidamas Georgios Kosmoglou Kioseoglou (University of Ioannina (GR))

19:55 Measurement of azimuthal correlations of jets and determination of the strong coupling in pp collisions at 13 TeV with CMS

Speaker: Paris Gianneios (Université Libre de Bruxelles (BE))

20:15 Search for Supersymmetry in single-lepton events with the full RunII data from the CMS experiment

Speaker: Pantelis Kontaxakis (Universite de Geneve (CH))

20:35 Search for charged lepton flavour violation in top quark decays

Speaker: Alexios Stampekis

20:55 Process quality control of silicon sensors for the Phase-2 upgrade of the CMS Outer Tracker

Speaker: Panagiotis Assiouras (Universita e INFN, Firenze (IT))

21:15 Design of a Differential Safety Mechanism (DSM) Dedicated to the NSW Micromegas Wedges

Speakers: Ioannis Mesolongitis (University of West Attica (GR)), Stavros Maltezos (National Technical Univ. of Athens (GR))

Tuesday 17 June

10:55 → 12:55 Plenary 4, Thu 17/6

Convener: Anastasios Petkou (Aristotle University of Thessaloniki (GR))

10:55 LHCb : recent physics results and upgrades

Speaker: Marie-Helene Schune (Université Paris-Saclay (FR))

11:35 Challenges of an accelerating universe in string theory

Speaker: Ignatios Antoniadis (UPMC)

12:15 Asymptotics, holography and fluids

Speaker: Marios Petropoulos (Ecole polytechnique - CNRS)

12:55 → 13:05 Coffee Break

13:05 → 15:10 Plenary 5, Thu 17/6

Convener: Kostas Kordas (Aristotle University of Thessaloniki (GR))

13:05 Non-Parametric Data-Driven Background Modelling using Conditional Probabilities

Speaker: Konstantinos Nikolopoulos (Hamburg University (DE))

13:30 Research activities of the ATLAS NCSR Demokritos group

Speaker: Theodoros Geralis (Nat. Cent. for Sci. Res. Demokritos (GR))

13:55 Emergent fields from hidden sectors

Speaker: Pascal Anastasopoulos (University of Vienna)

14:20 SU(2,1)/(SU(2)x U(1)) B-L Higgs Inflation

Speaker: Constantinos Pallis

14:45 Observability of Higgs self-coupling at the HL-LHC and HE-LHC

Speaker: Amit Adhikary

15:10 → 15:55 Lunch break

15:55 → 17:40 Plenary 6, Thu 17/6

Convener: Dimos Sampsonidis (Aristotle University of Thessaloniki (GR))

15:55 ENUBET and the CERN neutrino programme

Speaker: Andrea Longhin (Universita e INFN, Padova (IT))

16:35 Precise Timing in HEP

Speaker: Sebastian White (University of Virginia (US))

17:15 Signal processing techniques for precise timing with novel gaseous detectors

Speaker: Ioannis Manthos (Aristotle University of Thessaloniki)

17:40 → 17:55 Coffee Break

17:55 → 22:10 Parallel: Experiment II

Conveners: Christos Lampoudis (Aristotle University of Thessaloniki (GR)), Ioannis Katsioulas (University of Birmingham)

17:55 Feasibility study of Muon Tomography application in a non-invasive representation of tumulus

Speaker: Ilia Kalaitzidou (Universite Libre de Bruxelles (BE))

18:15 Observation of ZZ production via Vector Boson Scattering in ATLAS

Speaker: Ioannis Maznas (Northern Illinois University (US))

18:35 Studies on dim-8 EFT limit setting in p-p collisions at centre-of-mass energy of 13 TeV for the EWK production of ZZjj in the four-lepton channel

Speaker: Alexandros Marantis (Hellenic Open University (GR))

18:55 Recent results in the search for resonant W± Z ->lvll production in Run-2 with the ATLAS detector

Speaker: Maria-Evanthia Tsopoulou

19:15 Extensive Air Shower Reconstruction using the timing information from the RF-system of the Astroneu array.

Speaker: Stavros Nonis (Hellenic Open University)

19:35 The microNet (μNet) project: An extended network of educational cosmic ray telescopes.

Speaker: Michael Petropoulos (Hellenic Open University)

19:55 Search for exclusive hadronic W boson decays with the ATLAS experiment

Speaker: Julia Manuela Cardoso Silva (The University of Edinburgh (GB))

20:15 DarkSPHERE: Reaching the neutrino floor with a Spherical Proportional Counter

Speaker: Jack Matthews (University of Birmingham)

20:35 Searches for Rare and Forbidden Exclusive Decays of the Higgs and Z Bosons to a Meson and a Photon with the ATLAS Experiment

Speaker: Robert James Ward (Hamburg University (DE))

17:55 → 21:55 Parallel: Theory I

Conveners: Constantinos Pallis, Vasilis Oikonomou (Aristotle University of Thessaloniki)

17:55 Effective Action for Scalar Leptoquarks

Speaker: Kostas Mantzaropoulos (University of Ioannina)

18:15 Cosmological implications of EW vacuum instability: constraints on the Higgs-curvature coupling from inflation

Speaker: Andreas Mantziris (University of Coimbra)

18:35 Autonomous dynamical system of Einstein–Gauss– Bonnet cosmologies

Speaker: Nikolaos Chatzarakis (Aristotle University of Thessaloniki)

18:55 Rescaled Einstein Hilbert Gravity: Inflation and the Swampland Criteria

Speaker: Achilles Gitsis (Aristotle University of Thessaloniki)

19:15 Primordial Black Holes And Gravitational Waves Based On No Scale Supergravity

Speaker: Ioanna Stamou (National and Kapodistrian University of Athens)

19:35 Scale-invariance, dynamically induced Planck scale and inflation in the Palatini formulation

Speaker: Ioannis Gialamas (National Institute of Chemical Physics and Biophysics)

19:55 Quantum fluctuations of baryon number density

Speaker: Rajeev Singh (West University of Timisoara, Romania)

20:15 Progress on Feynman Integrals for 2-->3 scattering at NNLO

Speaker: Nikolaos Syrrakos (NCSR DEMOKRITOS)

20:35 Progress on 2-loop Amplitude Reduction

Speaker: Dhimiter Canko (NSCR "Demokritos")

20:55 One-Loop Phenomenology in the SM EFT

Speaker: Lampros Trifyllis (University of Ioannina)

Wednesday 18 June

10:55 → 13:05 Plenary 7, Fri 18/6

Convener: Vassilis Spanos (Department of Physics National and Kapodistrian University of Athens)

10:55 ALICE: status, physics. Future

Speaker: Mateusz Ploskon (Lawrence Berkeley National Lab. (US))

11:35 Holography

Speaker: Kostas Skenderis

12:15 An EFT analysis of Vector Boson scattering at the LHC

Speaker: Athanasios Dedes (University of Ioannina)

12:40 Gravity with Perimeter Action and Gravitational Singularities

Speaker: Georgios Savvidis (Nat. Cent. for Sci. Res. Demokritos (GR))

13:05 → 13:15 Coffee Break

13:15 → 15:25 Plenary 8, Fri 18/6

Convener: Christine Kourkoumelis (National and Kapodistrian University of Athens (GR))

13:15 Co-60 Irradiation at HL_LHC levels of p-type silicon MOS capacitors and TCAD simulations

Speaker: Aristoteles Kyriakis (Nat. Cent. for Sci. Res. Demokritos (GR))

13:40 Probing new physics with nuclear and electron recoils

Speaker: Dimitrios Papoulias (University of Ioannina)

14:05 Embeddings of integrable models in supergravity and their perturbative stability

Speaker: Georgios Itsios (NKUA )

14:30 Vector Boson Scattering with the ATLAS Detector and EFT prospects

Speaker: Despoina Sampsonidou (University of Oregon (US))

14:55 A Machine Learning approach to the EFT re-interpretation of the WZjj fully leptonic EWK production

Speaker: Konstantinos Bachas (Aristotle University of Thessaloniki)

15:25 → 15:55 Lunch break

15:55 → 17:35 Plenary 9, Fri 18/6

Convener: Theodoros Geralis (Nat. Cent. for Sci. Res. Demokritos (GR))

15:55 The NSW project for the Phase I upgrade of the ATLAS Muon Spectrometer

Speaker: Dimitris Fassouliotis (National and Kapodistrian University of Athens (GR))

16:20 Surface commissioning of the Micromegas detectors for the muon spectrometer NSW of the ATLAS experiment

Speaker: Athina Kourkoumeli-Charalampidi (Pavia University and INFN (IT))

16:45 Methods used for Gas Tightness Test and percent Oxygen Monitoring of the NSW Micromegas Detectors of LHC-ATLAS Experiment

Speaker: Stavros Maltezos (National Technical Univ. of Athens (GR))

17:10 Fast neutron spectroscopy: The nitrogen-filled Spherical Proportional counter

Speaker: Ioannis Manthos (University of Birmingham (GB))

17:35 → 17:55 Coffee Break

17:55 → 22:30 Experiment III

Conveners: Anthony Leisos (Hellenic Open University), Ioannis Manthos (University of Birmingham (GB))

17:55 Construction and operation of large scale Micromegas detectors for the ATLAS Muon upgrade

Speaker: Ioannis Michail Maniatis (Weizmann Institute of Science (IL))

18:15 Performance of the final New Small Wheel Micromegas sectors for the ATLAS Muon Upgrade

Speaker: Maria Perganti (National Technical Univ. of Athens (GR))

18:35 ATLAS NSW Upgrade – sTGC Trigger and Commissioning

Speaker: Olga Zormpa (CERN)

18:55 A program to drive the ATLAS Local Trigger Interface (ALTI) at the ATLAS experiment

Speaker: Foteini Trantou (University of Pisa - INFN (IT))

19:15 The Detector Control System of the New Small Wheel for the ATLAS experiment

Speaker: Polyneikis Tzanis (CERN)

19:35 The Detector Control System for the magnetic field sensors of the sTGC detector in New Small Wheel Phase I upgrade of ATLAS detector

Speaker: Stamatios Tzanos (National Technical Univ. of Athens (GR))

19:55 Implementation of the DCS System for the validation of MM HV Boards and the DCS System of the new BIS78 Chambers for the upgrade of muon system of the ATLAS Experiment

Speaker: Ioannis Drivas-Koulouris (National Technical Univ. of Athens (GR))

20:15 Hardware Tracking for the ATLAS Trigger and the Associative Memory ASIC

Speaker: Andreas Vgenopoulos (Johannes Gutenberg Universitaet Mainz (DE))

20:35 The Fake Sector Logic for the ATLAS Muon Trigger system

Speaker: Maria Myrto Prapa (Nat. Cent. for Sci. Res. Demokritos (GR))

20:55 Fake Background estimation in WZ diboson production

Speaker: Ioannis Karkanias (Aristotle University of Thessaloniki (GR))

21:15 Preliminary investigations towards the constraint of the Higgs boson self-coupling with hh->bbtautau

Speaker: Christos Paraskevopoulos (INFN e Laboratori Nazionali di Frascati (IT))

21:35 An MC study of Dimension-6 effective field theory operators for the WZ inclusive production in ATLAS

Speaker: Christos Leonidis-Giannoulas (Aristotle University of Thessaloniki (GR))

Thursday 19 June

10:55 → 12:55 Plenary 10, Sat 19/6

Conveners: Chariclia Petridou (Aristotle University of Thessaloniki (GR)), Katerina Zachariadou (University of West Attica (GR))

10:55 PICOSEC Micromegas: Achievements in Precise Timing and Recent Advancements with Large Segmented Prototypes

Speaker: Christos Lampoudis (Aristotle University of Thessaloniki (GR))

11:20 Results and Prospects of the Hellenic Open University air shower array¶

Speaker: Apostolos Tsirigotis (Aristotle University of Thessaloniki (GR), Hellenic Open University)

11:45 The Future of Particle Physics

Speaker: Jonathan R. Ellis (King's College London)

12:55 → 13:05 Coffee Break

13:05 → 18:25 Plenary 11, Sat 19/6: FCC Physics Prospects

Conveners: Dimitris Fassouliotis (National and Kapodistrian University of Athens (GR)), Kostas Kordas (Aristotle University of Thessaloniki (GR)), Michelangelo Mangano (CERN)

13:05 Semi-leptonic Penguin Decays

Speaker: Tobias Hurth (Johannes Gutenberg Universitaet Mainz (DE))

13:45 Gravitational waves from density perturbations in the early universe

Speaker: Ioannis Dalianis (National and Kapodistrian University of Athens (GR) )

14:10 The hidden fluxes that control the stochastic closure of scalar fields

Speaker: Stam NICOLIS

14:35 String integrability of defect CFT and dynamical reflection matrices

Speaker: Georgios Linardopoulos (Asia Pacific Center for Theoretical Physics)

15:00 Latest results of the R2D2 project: a possible future neutrino double beta decay experiment

Speaker: Ioannis Katsioulas (University of Birmingham)

15:25 The ATLAS L1Calo Trigger upgrade for the HL-LHC

Speaker: Panagiotis Bellos (University of Birmingham (GB))

15:50 The REINFORCE citizen-science project and the search for new long-lived particles at the LHC

Speaker: Stylianos Angelidakis (National and Kapodistrian University of Athens (GR))

16:15 An Update on the CERN Alumni Network

Speaker: Michele Barone (Nat. Cent. for Sci. Res. Demokritos (GR))

16:40 Closing of the Conference

Speakers: Dimos Sampsonidis (Aristotle University of Thessaloniki (GR)), Katerina Zachariadou (University of West Attica (GR))