Conveners
Parallel Session - Light Dark Matter
- Laura Molina Bueno (IFIC (CSIC/UV))
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Richard Jacobsson (CERN)04/06/2026, 11:30Light Dark MatterOral presentation
The SHiP/NA67 experiment is a general-purpose intensity-frontier experiment for the search for feebly interacting and long-lived GeV-scale particles and to perform neutrino physics measurements at the HI-ECN3 (high-intensity) beam facility at the CERN SPS, operated in beam-dump mode, taking full advantage of the available $4\times 10^{19}$ protons per year at 400 GeV. The Collaboration is now...
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Ansh Desai (University of Oregon)04/06/2026, 11:50Light Dark MatterOral presentation
The FASER experiment at the LHC is designed to search for light, weakly-coupled new particles as probes of dark sector physics. The experiment has been running since 2022, and has collected nearly 200/fb of pp collision data. FASER has new results from a search for long-lived dark photons and long-lived axion-like-particles (also interpreted in several other scenarios). This talk will present...
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Youngjoon Kwon (Yonsei University)04/06/2026, 12:10Light Dark MatterOral presentation
The Belle and Belle II experiment have collected samples of $e^+e^-$ collision data at center-of-mass energies near the $\Upsilon(nS)$ resonances. These data have constrained kinematics and low multiplicity, which allow searches for dark sector particles in the mass range from a few MeV to 10 GeV. We present new searches in a $600~\mathrm{fb}^{-1}$ sample collected by Belle II, including...
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Craig Group (University of Virginia)04/06/2026, 12:30Light Dark MatterOral presentation
The constituents of dark matter are still unknown, and the viable possibilities span a very large mass range. Specific scenarios for the origin of dark matter sharpen the focus on a narrower range of masses: the natural scenario where dark matter originates from thermal contact with familiar matter in the early Universe requires the DM mass to lie within about an MeV to 100 TeV. Considerable...
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Angus Macdonald (University of Nottingham)04/06/2026, 12:50Light Dark MatterOral presentation
Ultra-light scalar fields may explain the nature of the dark matter in our universe. If such scalars couple quadratically to particles of the Standard Model the scalar acquires an effective mass which depends on the local matter energy density. The changing mass causes the field to deviate from its cosmological value in experimental environments. We show that the presence of a local...
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David Alonso-González (IFT (UAM-CSIC))04/06/2026, 13:10Light Dark MatterOral presentation
Core-collapse supernovae can produce light, weakly interacting particles with MeV-scale masses, such as light dark matter or axion-like particles. After escaping the supernova core with semi-relativistic velocities, these particles propagate through the Galaxy and may reach Earth long after the explosion. Since they propagate with a spread in velocities, the particles from a single supernova...
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