Name: 3rd General Meeting of COST Action COSMIC WISPers (CA21106)
Start: 2025-09-09T08:15:00+03:00
End: 2025-09-12T23:20:00+03:00
Location: Sofia, Bulgaria

3rd General Meeting of COST Action COSMIC WISPers (CA21106)

from Tuesday, 9 September 2025 (08:15) to Friday, 12 September 2025 (23:20)

Monday, 8 September 2025
Tuesday, 9 September 2025

08:15 Registration

08:15 - 09:00
Room: Main lobby

09:00 Welcome to CA21106 General Meeting

09:00 - 09:20
Room: Aula
09:20 WG1 (Theory)
09:20 - 10:40
Room: Aula
Contributions

09:20 CP, or not CP, that is the question - Andreas Ringwald (DESY)

10:00 Open string axiverse - Giovanni Villadoro
10:40 Coffee break
Coffee break
10:40 - 11:00
Room: Main lobby
11:00 WG1 (Theory)
11:00 - 13:00
Room: Aula
Contributions

11:00 Testing interactions in a scalar dark sector - Elsa Teixeira

11:40 The Thorium-229 revolution: nuclear clocks as quintessometers - Cedric Delaunay (LAPTh)

12:20 Axion Quality: Challenges and Pathways to Improvement - Federico Mescia
14:30 Round Table
14:30 - 15:30
Room: Aula
Contributions

14:30 WG1 Report - Michele Cicoli (Istituto Nazionale di Fisica Nucleare)

15:00 Discussion
15:30 WG1 (Theory)
15:30 - 16:30
Room: Hall 2
Contributions

15:30 Topological Portals to the Dark Sector - Nudzeim Selimovic (INFN Padova)

16:00 Cosmic superstrings in large volume compactifications - Gonzalo Villa (DAMTP - University of Cambridge)
WG2 (Dark matter & Cosmology)
15:30 - 16:30
Room: Aula
Contributions

15:30 Scalar Fields with Quadratic Couplings to Matter around Cavities - Angus Macdonald (University of Nottingham)

15:50 Dark Matter Freeze-In and Small-Scale Observables: Novel Mass Bounds and Viable Particle Candidates - Alessandro Lenoci (The Hebrew University of Jerusalem)

16:10 Constraining ALPs with Cosmic Microwave Background Polarization Birefringence - Matteo Galaverni (Vatican Observatory & INAF/OAS Bologna)
16:30 Coffee Break
Coffee Break
16:30 - 16:50
Room: Main lobby
16:50 WG1 (Theory)
16:50 - 18:10
Room: Hall 2
Contributions

16:50 Growth of cosmic strings with field-dependent tension - Luca Brunelli (Istituto Nazionale di Fisica Nucleare)

17:20 Cosmic strings and domain walls of the QCD quark condensate with and without a hidden axion - Anja Stuhlfauth (Max Planck Institute for Physics)
WG2 (Dark matter & Cosmology)
16:50 - 18:20
Room: Aula
Contributions

17:10 Dark matter production from axion portal - Tommaso Sassi (INFN Sezione di Firenze, Università degli Studi di Firenze)

17:30 Emission of spin-2 Particles from the Sun - Camilo Garcia Cely (IFIC (CSIC-University of Valencia))

17:50 WISP Dark Matter: What's Missing? - María Benito (Tartu Observatory, University of Tartu)
18:30 Welcome reception
Welcome reception
18:30 - 20:00
Room: Main lobby
Wednesday, 10 September 2025
09:30 WG3 (Astrophysics)
09:30 - 10:50
Room: Aula
Contributions

09:30 X-ray observations and their applications to the physics of axions (or other WISPs) - Jaime Ruz

10:10 Axion superradiance - Francesca Chadha-Day (IPPP, Durham University)
10:50 Coffee break
Coffee break
10:50 - 11:20
Room: Main lobby
11:20 WG3 (Astrophysics)
11:20 - 12:40
Room: Sofia University Main Building
Contributions

11:20 Radio observations and their applications to the physics of axions (or other WISPs) - Marco Regis (Istituto Nazionale di Fisica Nucleare)

12:00 Theoretical progress on SN axions. - Konstantin Springmann (TU Munich)
14:30 Round Table
14:30 - 15:30
Room: Aula
Contributions

14:30 WG3 Report - Giuseppe Lucente (SLAC) Maurizio Giannotti

15:00 Discussion
15:30 WG3 (Astrophysics)
15:30 - 16:30
Room: Aula
Contributions

15:30 X-ray Searches for Axions: The M82 and Betelgeuse Case Studies - Francisco Candon

15:50 Probing axion-like particles with multimessenger observations of neutron star mergers - Francesca Lecce

16:10 Axion production and conversion in astrophysical transients - Ángel Gil Muyor
WG4 (Experiments)
15:30 - 16:30
Room: Hall 2
Contributions

15:30 ARCHIMEDES experiment - Domenico D’Urso

15:50 Recent Developments in Axion Detection with MADMAX - Anton Ivanov

16:10 Bridging nuclear physics and neutron stars at the LHC - Dimitar Mihaylov
16:30 Coffee break
Coffee break
16:30 - 17:00
Room: Main lobby
17:00 WG3 (Astrophysics)
17:00 - 18:20
Room: Aula
Contributions

17:00 Relaxing supernova constraints: how nucleophobic axions survive finite-density corrections. - Vincenzo Fiorentino

17:20 Probing axion-like particles with very-high-energy gamma rays: Insights from MAGIC and LST-1 - Ivana Batkovic

17:40 Sensitivity of CTAO to axion-like particles from blazars: a machine learning approach - Francesco Schiavone

18:00 Probing Ultralight Scalars through Compact Stars and Precision Tests of Gravity - Tanmoy Poddar
WG4 (Experiments)
17:00 - 18:20
Room: Hall 2
Contributions

17:00 Precision test of fundamental physics with matter wave interferometers - Nicola Poli (Istituto Nazionale di Fisica Nucleare)

17:20 Hunting for Dark Matter using Levitated Superconductors - Jackson Fowler
Thursday, 11 September 2025
09:30 WG2 (Dark matter & Cosmology)
09:30 - 10:50
Room: Aula
Contributions

09:30 New Opportunities for Ultralight DM Search with Stochastic Fluctuations - Hyungjin Kim

10:10 Cosmological tests of the nature of dark matter - Keir Rogers
10:50 Coffee break
Coffee break
10:50 - 11:20
Room: Main lobby
11:20 WG2 (Dark matter & Cosmology)
11:20 - 12:40
Room: Aula
Contributions

11:20 Cracks in the Standard Cosmological Model: Anomalies, Tensions, and Hints of New Physics - Eleonora Di Valentino (University of Sheffield)

12:00 Gravitational probes of ultralight dark matter - Kfir Blum
14:30 Round Table
14:30 - 15:30
Room: Aula
Contributions

14:30 WG2 Report - María Benito (Tartu Observatory, University of Tartu) Mathieu Kaltschmidt (CAPA, Universidad de Zaragoza)

15:00 Discussion
15:30 Technology Forum
15:30 - 17:00
Room: Aula
Contributions

15:30 Advances in optomechanics - Nenad Kralj

16:00 Satellites & Space Missions - Lubomir Toshev (EnduroSat) Viktor Danchev (CTO EnduroSat)

16:30 Magnetometry: from single measurements to network of magnetometers - Boyan Benev (Benev Science & Technology Ltd)
17:00 Coffee break
Coffee break
17:00 - 17:30
Room: Main lobby
18:00 WG5 (Dissemination and Outreach): Public talk
Public talk
18:00 - 19:30
Room: A205
Contributions

18:00 Public talk: COSMIC WISPers in the Dark Universe - Kalina Dimitrova Venelin Kozhuharov
20:00 Official dinner

20:00 - 22:00
Room: Restaurant "Stariyat Chinar"
Friday, 12 September 2025
09:00 WG4 (Experiments)
09:00 - 10:20
Room: Aula
Contributions

09:00 Preliminary ALPs sensitivity projections for the RES-NOVA Observatory - Nahuel Ferreiro Iachellini

09:40 Probing new physics with slow and trapped molecules - Steven Hoekstra (University of Groningen, and Nikhef, The Netherlands)
10:20 Coffee break
Coffee break
10:20 - 10:40
Room: Main lobby
10:40 WG4 (Experiments)
10:40 - 12:00
Room: Aula
Contributions

10:40 WISPFI experiment - Marios Maroudas

11:20 PADME Experiment - Elisa Di Meco
12:00 Round Table
12:00 - 12:40
Room: Aula
Contributions

12:00 WG4 report - Marin Karuza (Istituto Nazionale di Fisica Nucleare)
12:40 Concluding talk
12:40 - 13:20
Room: Aula
Contributions

12:40 Axions explain the formation of supermassive black holes at cosmic dawn - Pierre Sikivie
13:20 Conclusions

13:20 - 13:30
Room: Aula
15:00 Management Committee Meeting
15:00 - 17:00
Room: Aula
Contributions

15:00 CA21106 Introduction - Alessandro Mirizzi (Istituto Nazionale di Fisica Nucleare)

15:20 WG1 report - Michele Cicoli (Istituto Nazionale di Fisica Nucleare)

15:40 WG2 Report - María Benito (Tartu Observatory, University of Tartu) Mathieu Kaltschmidt (CAPA, Universidad de Zaragoza)

16:00 WG3 Report - Maurizio Giannotti

16:20 WG4 report - Marin Karuza (Istituto Nazionale di Fisica Nucleare)

16:40 WG5 report - Loredana gastaldo (Kirchhoff Institute for Physics, Heidelberg University) Olga Requejo
17:00 Coffee break
Coffee break
17:00 - 17:20
Room: Main lobby
17:20 Management Committee Meeting
17:20 - 19:30
Room: Aula
Contributions

17:20 Grant awarding coordinator report - Venelin Kozhuharov (Univerity of Sofia "St. Kl. Ohridski" & LNF-INFN)

17:40 ECI Committee Report - Marta Fuentes Zamoro

18:00 Report from Gender and Diversity Advisor - Deniz Sunar Cerci

18:20 Draft of W&B Plan 2026 - Alessandro Mirizzi (Istituto Nazionale di Fisica Nucleare)

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