IFAE participated in the [ETpathfinder](https://www.etpathfinder.eu/) meeting in Maastricht n Fed 22 – 23.

Recent studies have revealed that the bending of light around massive galaxies is significantly smaller than what our theories predict. Now, a team of scientists from Spanish institutions has found that the mismatch between theory and observations is actually caused by imprecise modeling of astrophysical processes.

On March 6, the LST Collaboration published its first scientific paper in the Astronomy & Astrophysics journal. The paper focuses on a multi-wavelength study of the unidentified ultra-high-energy gamma-ray source known as LHAASO J2108+5157.

“[Cosmic muon flux attenuation methods for superconducting qubit experiments](https://arxiv.org/abs/2303.04938)” by members of the QCT group at IFAE has been uploaded to arXiv.

The paper titled ‘A novel MCT focal plane array thermally stressed at low temperatures’ authored by Jorge Jiménez and co-authored by Cristobal Padilla has been published in the ‘IEEE Transactions on Instrumentation and Measurement’ magazine.

The ATLAS and CMS collaborations have observed the simultaneous production of four top quarks, the heaviest elementary particle, in collisions at the world’s largest particle accelerator, located at CERN. The Institut de Física d’Altes Energies (IFAE) plays a prominent role in the observation of this rare phenomenon that could be key to searching for new particles beyond the Standard Model.

The ALBA Synchrotron hosted on Friday, 14 April 2023, the workshop “InCAEM-Planes Complementarios for the Catalan scientific community”, where several research institutions from different areas of Catalonia took part.

Prof. Harald Kornmayer from the DHBW Mannheim university is visiting IFAE-PIC until January 2024.

At CERN, the first cosmic tracks with the first of the final TPC field cages have been recorded. An important milestone towards shipping the first TPC to Japan this summer.

[Searches for mass-asymmetric compact binary coalescence events using neural networks in the LIGO/Virgo third observation period](https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.082003) by M. Andrés-Carcasona, A. Menéndez-Vázquez, M. Martínez, and Ll. M. Mir has been published by Phys.Rev.D

The ET-PP (Einstein Telescope Preparatory Phase) project held its Annual Meeting from June 12th to 13th, 2023. The event, hosted by the Institut de Física d’Altes Energies (IFAE), as the coordinator of the european project, took place at the UPF Barcelona School of Management Campus in the city center of Barcelona.

A stunning documentary film featuring recent discoveries from the Dark Energy Spectroscopic Instrument (DESI) has been released to planetariums worldwide. A catalan version of this new documentary has been produced by the ERC COSMO-LYA project in collaboration with the UAB.