Light Dark Matter 2025

8 Apr 2025, 14:00 → 11 Apr 2025, 13:00 Europe/Rome

The International Workshop on Light Dark Matter @ Accelerators (LDMA) aims to bring together experts from the experimental and theoretical community, interested in the new and fast growing field of light dark matter search at accelerators. It will be the occasion to share expertise spanning from theoretical motivations to experimental techniques for future programs to pursue in mid-energy and high-intensity accelerating facilities.

The workshop will cover the following topics:
 

• Theoretical grounds and motivations for light dark matter scenarios
• Present and future experimental programs at accelerators
• Status of dark forces searches and future perspectives
• Latest updates on dark matter direct detection and results from experiments at high-energy colliders
• Constraints and limits from indirect dark matter detection
• Innovative instrumentation and new experimental techniques. 

The workshop is organized in plenary presentation sessions, followed by discussion session to review novel ideas, plans and proposal. 

 

Tuesday, 8 April

14:00 → 14:10 Saluti Istituzionali

14:00 Saluti istituzionali

Speaker: Mauro Gino Taiuti (Istituto Nazionale di Fisica Nucleare)

14:10 → 16:00 LDMA: the broad picture

14:10 Status of LDM searches at accelerators

Speaker: Fernando Arias Aragon (Istituto Nazionale di Fisica Nucleare)

14:45 Implications of cosmological and astrophysical observations on LDM searches at accelerators

Speaker: Francesca Calore (University of Amsterdam)

16:00 → 16:30 Coffe break

16:30 → 18:00 Light Dark Matter Direct Detection

16:30 Progress and challenges for the direct-detection of sub-GeV dark matter with cryogenic detectors

Speaker: Dr Margarita Kaznacheeva

16:55 Recent results from liquid-Ar detectors

Speaker: Dr Marie van Uffelen

17:20 Recent results on dark matter searches from the CCDs technology

Speaker: Prof. Alvaro Chavarria (University of Washington)

17:45 Discussion

18:00 → 19:30 Welcome aperitif

Wednesday, 9 April

09:00 → 11:00 Light dark matter searches at accelerators

09:00 Looking forward to dark matter at high-energy colliders

Speaker: Sebastian Trojanowski (National Centre for Nuclear Research (NCBJ), Poland)

09:35 Light Dark Matter with proton beams

Speaker: Maxim Pospelov (Perimeter Institute / University of Minnesota)

10:10 Effects of electron motion in positrons beam dump experiments

Speaker: Giovanni Grilli di Cortona (Istituto Nazionale di Fisica Nucleare)

10:35 Precise tests of the axion coupling to tops

Speaker: Anh Vu Phan (NIKHEF, Amsterdam (NL))

11:00 → 11:30 Coffe break

11:30 → 13:00 Light dark matter search with electron-beam, fixed target experiments

11:30 The BDX experiment at JLab

Speaker: Marco Spreafico (Istituto Nazionale di Fisica Nucleare)

11:55 The DarkMesa experiment at Mainz

Speaker: Luca Doria (Johannes Gutenberg University Mainz)

12:20 LDM searches at MAGIX

Speaker: Harald Merkel (Institut fuer Kernphysik, Johannes Gutenberg-Uniververitaet Mainz)

12:45 Discussion

13:00 → 14:30 Museum visit and lunch

14:30 → 16:00 Light dark matter search with electron-beam, fixed target experiments

14:30 Visible dark photon searches at JLab

Speaker: Rafayel Paremuzyan

14:55 The LDMX experiment

Speaker: Erik Jakob Wallin (Lund University)

15:20 The NA64 experiment at CERN

Speaker: Anna Marini (Istituto Nazionale di Fisica Nucleare)

15:45 Discussion

16:00 → 16:30 Coffee break

16:30 → 18:30 Light Dark Matter Direct Detection

16:30 Ultra-light dark matter direct detection with anti-ferromagnetic materials

Speaker: Angelo Esposito (Istituto Nazionale di Fisica Nucleare)

16:55 The migdal effect

Speaker: Christopher McCabe (King's College London)

17:20 LDM detection with SNSPDs super-conducting devices

Speakers: Giuliana Fiorillo (Istituto Nazionale di Fisica Nucleare), Roberta Calabrese (Istituto Nazionale di Fisica Nucleare)

17:45 Ultra-low energy detectors:

Dan Mc kinsey deve confermare

Thursday, 10 April

09:00 → 11:00 Searches for X17 at accelerators

09:00 The X17 boson: status and prospects

Speaker: Claudio Toni (Istituto Nazionale di Fisica Nucleare)

09:25 X17 searches at Atomki

Speaker: Attila Krasznahorkay

09:50 Recent X17 results from the MEG experiment

Speaker: Francesco Renga (Istituto Nazionale di Fisica Nucleare)

10:15 The X17 experiment at LNL

Speaker: Tommaso Marchi (INFN - LNL)

10:40 Discussion

11:00 → 11:30 Coffee break

11:30 → 12:30 LDM searches with positron beams

11:30 The PADME experiment

Speaker: Tommaso Spadaro (Istituto Nazionale di Fisica Nucleare)

11:55 Positrons@JLab

Speakers: Luca Marsicano (Istituto Nazionale di Fisica Nucleare), Pietro Bisio (Istituto Nazionale di Fisica Nucleare)

12:20 Discussion

12:30 → 14:00 Lunch break

14:00 → 15:30 Other searches at fixed target experiments

14:00 mCharge search at beam dumps

Speaker: Dr Megan McDuffie (Stony Brook University)

14:25 Overview of PBC activities

Speaker: Torben Ferber (KIT)

14:50 SensCalc: a tool to calculate sensitivities of dark sector experiments

Speaker: Maksym Ovchynnikov

15:15 Discussion

15:30 → 16:00 Coffee break

16:00 → 18:25 Light dark matter searches at proton beam, fixed-target experiments

16:00 Light dark matter searches at FASER

Speaker: Andrea Coccaro (Istituto Nazionale di Fisica Nucleare)

16:30 ALPs searches at FASER

Speaker: Noshin Tarannum (University of Geneva)

16:50 Light dark matter searches at NA62

Speaker: Jan Jerhot (Universite Catholique de Louvain (UCL) (BE))

17:15 The SHiP experiment at CERN

Speaker: Eduard Ursov (Humboldt-Universität zu Berlin)

17:40 LDM searches at Fermilab

Speaker: Matt Toups

18:05 Discussion

19:30 → 21:30 Social dinner

Friday, 11 April

09:00 → 11:00 Light dark matter searches at LHC

09:00 Dark Particles at the LHC

Speaker: Giorgio Arcadi (Istituto Nazionale di Fisica Nucleare)

09:25 Light dark matter searches at ATLAS

Speaker: Cristiano Sebastiani (ROMA1)

09:50 Light dark matter searches at CMS

Speaker: Albert De Roeck (CERN)

10:15 Light dark matter searches at LHCb

(speakers committee accepted, waiting for Andrii)

Speaker: Dr Andrii Usachov

10:40 Discussion

11:00 → 11:30 Coffee break

11:30 → 12:35 Light dark matter searches at electron/positron colliders

11:30 Dark sector searches at Belle-II

Speaker: Enrico Graziani (Istituto Nazionale di Fisica Nucleare)

11:55 Dark sector searches at BES3

Speaker: Xiaoxuan Ding

12:20 Discussion

12:35 → 13:00 Closeout