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    EXCESS26@IDM

    → 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:

    EXCESS 2021

    EXCESS 2022

    EXCESS22@IDM

    EXCESS23@TAUP

    EXCESS24@IDM

    EXCESS25@LTD

     

     

    Contact
      • 08:30 → 09:00
        Registration 30m
      • 09:00 → 10:30
        Talks
        Convener: Florian Reindl (Vienna University of Technology (AT))
        • 09:00
          Introduction 15m
          Speakers: Felix Wagner (HEPHY Vienna), Margarita Kaznacheeva (Technical University of Munich)
          EXCESS26@IDM workshop.pdf
        • 09:15
          The low-energy excess in the detector modules of CRESST III 25m
          Speakers: Anna Bertolini (Heidelberg University (DE)), Marco Maria Zanirato (Max Planck Society (DE))
          CRESST_LEE.pdf
        • 09:40
          New LEE findings from NUCLEUS 25m
          Speaker: Giorgio Del Castello
          LEENucleus.pdf
        • 10:05
          Calibrating Sub-keV Nuclear Recoils with CRAB 25m
          Speaker: Andreas Erhart
          EXCESS26_Erhart_CRAB.pdf
      • 10:30 → 11:00
        Coffee Break 30m
      • 11:00 → 12:40
        Talks
        Convener: Florian Reindl (Vienna University of Technology (AT))
        • 11:00
          Observations of the LEE using SuperCDMS HVeV detectors operated at SNOLAB 25m
          Speaker: Kyle Kennard
          KKennard_EXCESS2026.pdf
        • 11:25
          TESSERACT / SPICE 25m
          Speaker: Matt Pyle (University of California Berkeley)
          EXCESS_FastNeutron.pdf
        • 11:50
          Status of RICOCHET Experiment @ ILL, LEE study and mitigation 25m
          Speaker: Alex Juillard (IP2I/IN2P3)
          Ricochet_LEE_Excess2026_final.pdf
        • 12:15
          Spontaneous Energy Release from Defect Recombination in Si Detectors 25m
          Speaker: FEDERICO LEDDA
          excess2026_Ledda.pdf
      • 12:40 → 13:40
        Lunch 1h
      • 13:40 → 15:20
        Talks
        Convener: Daniel Baxter (Fermi National Accelerator Laboratory, USA)
        • 13:40
          BULLKID-DM: The road for the technical run 25m
          Speaker: Matteo Folcarelli
          BULLKIDdm-EXCESS26.pdf
        • 14:05
          Detecting low energy events with SQUATs 25m
          Speaker: Aviv Simchony
          Aviv_Excess_talk.pdf
        • 14:30
          Anomalous time dependence of the rate of catastrophic bursts of globally suppressed relaxation time in a 5-qubit superconducting processor 25m
          Speaker: Ruggero Di Carlo
        • 14:55
          Preliminary findings on O(10) meV photon and phonon backgrounds, as probed by the QUALIPHIDE DM experiment 25m
          Speaker: Karthik Ramanathan
          Ramanathan_EXCESS_LEE_2026.pdf
      • 15:20 → 15:50
        Coffee break 30m
      • 15:50 → 17:05
        Talks
        Convener: Belina Von Krosigk (Heidelberg University (DE))
        • 15:50
          Preliminary low energy background of the TREX-DM experiment 25m
          Speaker: Álvaro Ezquerro Sastre (Universidad de Zaragoza)
          TREX-DM_EXCESS26.pdf
        • 16:15
          Electronegative impurities as a cause of the low-energy excess in NEWS-G's dark matter detector 25m
          Speaker: Jon Clarke
          2026-05-30_JClarke_EXCESS_talk_v05.pdf
        • 16:40
          Single photon and electron excess in liquid xenon TPCs 25m
          Speaker: Dr Peter Sorensen (LBL / Berkeley Lab)
          2026-05-30-EXCESS-Sorensen.pdf
      • 17:05 → 18:00
        Discussion
        ClosingRemarks.pdf
        workshop_summary.png