Axions in Japan

Session

Parallel session - Experiments II

14 Nov 2025, 13:40

Lecture Hall (Kavli IPMU)

Conveners

Parallel session - Experiments II

• Chair: Baptiste Jost

37. Search for ALPs with mass near 2.3 eV via stimulated resonant photon scattering in a three-laser collision at a large crossing angle eV-mass

Takumi Hasada

14/11/2025, 13:40

Axion-like particles(ALPs) are attractive candidates that could explain reported excesses in the cosmic optical and infrared background. We aim to search for ALPs via stimulated resonant photon scattering by colliding three short-pulse lasers. By changing angle of incidence of the three beams, the center-of-mass-system collision energy can be varied and the eV mass range can be continuously...

38. Precision Atomic Response Functions for Probing Dark Matter–Electron Scattering in Xenon and Germanium Detectors

Mukesh Kumar Pandey

14/11/2025, 14:00

This work presents a comprehensive theoretical investigation of dark matter (DM)–electron interactions using atomic response functions (ARFs), with a focus on Germanium and Xenon—two widely employed detectors in direct detection experiments. Accurately modeling these interactions is essential for interpreting and guiding searches for light dark matter candidates, particularly in scenarios...

39. Axion searches at Belle/Belle II

Tomoyuki Shimasaki

14/11/2025, 14:20

The Belle and Belle II experiments have collected samples of e+e− collision data at and near the centre-of-mass energies near the Υ(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. Using samples of up to 711 fb−1 collected by Belle and 365 fb−1 collected by Belle II at the...

40. Search for dark-matter axions beyond the quantum limit: the Cosmological Axion Sarov Haloscope (CASH) proposal and status

Petr Satunin

14/11/2025, 14:40

Firmly established in astrophysical observations, dark matter evades direct detection in experiments. Axions and axion-like particles are among the leading dark-matter candidates, and numerous attempts to detect them in laboratories have been performed. Here, we propose to advance these efforts substantially, extending the sensitivity for dark-matter axions in the mass range 38-54 mu-eV down...