A dark photon is a massive dark-sector force mediator. This dark-sector could be weakly-interacting with the regular matter, whereas the dark photon, even if, in the minimal model, not coupling directly to the Standard Model particles, could kinetically mix to the regular photon via a suppression factor.

LHCb is a spectrometer in the forward region. It was originally designed as a heavy-flavor detector although it has been shown for long now its potential as a general purpose experiment. Specifically, LHCb has been able to show its sensitivity to dark sectors in pp collisions in a complementary way with respect to, for instance, ATLAS and CMS. LHCb has conducted a search for a massive dark photon decaying to two muons in the mass range [211 MeV, 70 GeV] using the full Run 2 data delivered by the LHC. Right now, LHCb is collecting the Run 3 data with the upgraded detector and trigger system. The removal of the hardware trigger and the incorporation of a triggerless readout and a GPU based software trigger in the first selection layer, allows to implement neural metwork based electron and muon identification algorithms. This not only optimizes the sensitivity to the dimuon final state but also enables a more challenging dielectron search, below the dimuon threshold. 

Director: Christoph Adam

In this talk I will present a systematic procedure to compute the effective action that governs the dynamics of Goldstone degrees of freedom associated to the breaking of spacetime symmetries in the formation of domain wall and string defects, as well as their couplings to other massive modes such as bound states. I will show how the predictions of such effective action compare to the true, field theoretical evolution for collapsing domain walls, and argue that no curvature corrections should appear in the case of collapsing strings, as opposed to previous claims in the literature.

O IGFAE e o CITMAga (Centro de Investigación e Tecnoloxía Matemática de Galicia) unen forzas para organizar un encontro co que se pretende promover a internacionalización das e dos estudantes nas primeiras etapas da carreira investigadora. Oito relatores con experiencia investia compartirán as súas propias experiencias durante a xornada. O rexistro é gratuíto, e pode formalizarse ata o venres 13 de decembro nesta ligazón.

Directores: Diego González Díaz (IGFAE) and Justo Martín Albo Simón (IFIC)

Directores: Abraham Gallas Torreira, Ricardo Vázquez Gómez

Directores: Diego González Díaz e Justo Martín-Albo Simón.

A sede do IGFAE acolle unha nova edición do ciclo Transfronteirizas: conversas de arte e ciencia. Nesta ocasión, o investigador Héctor Álvarez e a artista Paula Quintas compartirán co público asistente o proceso de creación do seu proxecto Mundo Quark. Danza Cuántica. Esta iniciativa artística parte do Modelo Estándar para representar as partículas elementais e as interaccións entre elas a través da danza e o movemento corporal, explorando as interseccións entre ambas disciplinas.