Jornada inaugural del Máster en Física del Universo, curso 2025/2026, y seminario CAPA: “Searching for sub-GeV particle dark matter with Spherical Proportional Counters”.- Viernes 5 de septiembre
El viernes 5 de septiembre de 2025 se celebrará la Jornada Inaugural del Máster Universitario en Física del Universo: Cosmología, Astrofísica, Partículas y Astropartículas.
En ella, el CAPA (Centro de Astropartículas y Física de Altas Energías) ha organizado el seminario de título “Searching for sub-GeV particle dark matter with Spherical Proportional Counters” que será impartido por Konstantinos Nikolopoulos (University of Hamburg / University of Birmingham) a las 10:00 h.
Además, se presentarán los distintos grupos de investigación del CAPA:
12:00 h: Astroparticle Physics and Instrumentation.
12:30 h: The Standard Model and Beyond: Symmetry, Gravity and Dark Matter.
13:00 h: Cosmology and Astrophysics at UNIZAR.
La jornada tendrá lugar en el Seminario de Física Nuclear (planta calle del Edificio A, Físicas) y podrá seguirse también en remoto a través del enlace https://meet.google.com/xak-ucgt-qqu.
Resumen del seminario (en inglés):
The NEWS-G collaboration is searching for light dark matter using spherical proportional counters. Access to 50 MeV to 10 GeV mass range is enabled by the combination of single electron threshold, light gaseous targets (H, He, Ne), and highly radio-pure detector construction. Most recently, new constraints on spin-dependent interactions of dark matter with protons were obtained with the commissioning data of a 140 cm in diameter spherical proportional counter, S140, constructed at LSM using 4N copper with 500 μm electroplated inner layer. The detector currently operates in SNOLAB, with the first physics data-taking campaign recently completed. The latest physics results will be presented along with the recent developments on the detector instrumentation, namely individual read-out of the multi-anode sensor and electroformation techniques. The path towards DarkSPHERE, a large-scale spherical proportional counter fully electroformed underground at the Boulby Underground Laboratory will be discussed.
