EXCESS26@IDM

Name: EXCESS26@IDM
Start: 2026-05-30T08:30:00+02:00
End: 2026-05-30T20:00:00+02:00
Location: No location set

Saturday 30 May 2026, 08:30 → 20:00 Europe/Madrid

Belina Von Krosigk (Heidelberg University (DE)), Daniel Baxter (Fermi National Accelerator Laboratory, USA), Felix Wagner (HEPHY Vienna), Florian Reindl (Vienna University of Technology (AT)), Iván Coarasa Casas (CAPA, University of Zaragoza, Spain), Margarita Kaznacheeva (Technical University of Munich), Maria Martinez, Rouven Essig (Stony Brook University)

Description

We are excited to announce the EXCESS26@IDM Workshop, taking place in Zaragoza on Saturday, May 30, 2026. This workshop will be held as a satellite event to the Identification of Dark Matter conference, offering a vibrant platform for collaborative discussions on low-energy excesses observed in low-threshold experiments.

There will be the possibility to present posters, abstract submissions for posters is already open.

Previous workshops:

Contact

excessworkshop@gmail.com

- 08:30
  
  Registration
- Talks
  
  Convener: Florian Reindl (Vienna University of Technology (AT))
  - 1
    
    Introduction
    
    Speakers: Felix Wagner (HEPHY Vienna), Margarita Kaznacheeva (Technical University of Munich)
    
    EXCESS26@IDM workshop.pdf
  - 2
    
    The low-energy excess in the detector modules of CRESST III
    
    Speakers: Anna Bertolini (Heidelberg University (DE)), Marco Maria Zanirato (Max Planck Society (DE))
    
    CRESST_LEE.pdf
  - 3
    
    New LEE findings from NUCLEUS
    
    Speaker: Giorgio Del Castello
    
    LEENucleus.pdf
  - 4
    
    Calibrating Sub-keV Nuclear Recoils with CRAB
    
    Speaker: Andreas Erhart
    
    EXCESS26_Erhart_CRAB.pdf
- 10:30
  
  Coffee Break
- Talks
  
  Convener: Florian Reindl (Vienna University of Technology (AT))
  - 5
    
    Observations of the LEE using SuperCDMS HVeV detectors operated at SNOLAB
    
    Speaker: Kyle Kennard
    
    KKennard_EXCESS2026.pdf
  - 6
    
    TESSERACT / SPICE
    
    Speaker: Matt Pyle (University of California Berkeley)
    
    EXCESS_FastNeutron.pdf
  - 7
    
    Status of RICOCHET Experiment @ ILL, LEE study and mitigation
    
    Speaker: Alex Juillard (IP2I/IN2P3)
    
    Ricochet_LEE_Excess2026_final.pdf
  - 8
    
    Spontaneous Energy Release from Defect Recombination in Si Detectors
    
    Speaker: FEDERICO LEDDA
    
    excess2026_Ledda.pdf
- 12:40
  
  Lunch
- Talks
  
  Convener: Daniel Baxter (Fermi National Accelerator Laboratory, USA)
  - 9
    
    BULLKID-DM: The road for the technical run
    
    Speaker: Matteo Folcarelli
    
    BULLKIDdm-EXCESS26.pdf
  - 10
    
    Detecting low energy events with SQUATs
    
    Speaker: Aviv Simchony
    
    Aviv_Excess_talk.pdf
  - 11
    
    Anomalous time dependence of the rate of catastrophic bursts of globally suppressed relaxation time in a 5-qubit superconducting processor
    
    Speaker: Ruggero Di Carlo
  - 12
    
    Preliminary findings on O(10) meV photon and phonon backgrounds, as probed by the QUALIPHIDE DM experiment
    
    Speaker: Karthik Ramanathan
    
    Ramanathan_EXCESS_LEE_2026.pdf
- 15:20
  
  Coffee break
- Talks
  
  Convener: Belina Von Krosigk (Heidelberg University (DE))
  - 13
    
    Preliminary low energy background of the TREX-DM experiment
    
    Speaker: Álvaro Ezquerro Sastre (Universidad de Zaragoza)
    
    TREX-DM_EXCESS26.pdf
  - 14
    
    Electronegative impurities as a cause of the low-energy excess in NEWS-G's dark matter detector
    
    Speaker: Jon Clarke
    
    2026-05-30_JClarke_EXCESS_talk_v05.pdf
  - 15
    
    Single photon and electron excess in liquid xenon TPCs
    
    Speaker: Dr Peter Sorensen (LBL / Berkeley Lab)
    
    2026-05-30-EXCESS-Sorensen.pdf
- Discussion
  
  ClosingRemarks.pdf
  
  workshop_summary.png