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Art installation inside IdeaSquare
No full textAn artist, architects, an experimental physicist, and Master’s students in environmental design and architecture, ideate the design of an interdisciplinary collaborative project to create an installation inside IdeaSquare. The simple idea raised complex questions, one of which was: what does “the future” mean? Based on the concepts of Japanese Gardens, which integrate the past and future into the present, as well as concepts from physics, the team led by Yuri Tanaka elaborated on these ideas into their space design. For more information: https://yuritanaka.net/projects/garden
Untersuchung von korreliertem Rauschen in 2S-Siliziumstreifenmodulen fuer das CMS Phase-2 Tracker Upgrade
No full textThe Spectroscopic Stage-5 Experiment
No full textThe existence, properties, and dynamics of the dark sectors of our universe pose fundamental challenges to our current model of physics, and large-scale astronomical surveys may be our only hope to unravel these long-standing mysteries. In this white paper, we describe the science motivation, instrumentation, and survey plan for the next-generation spectroscopic observatory, the Stage-5 Spectroscopic Experiment (Spec-S5). Spec-S5 is a new all-sky spectroscopic instrument optimized to efficiently carry out cosmological surveys of unprecedented scale and precision. The baseline plan for Spec-S5 involves upgrading two existing 4-m telescopes to new 6-m wide-field facilities, each with a highly multiplexed spectroscopic instrument capable of simultaneously measuring the spectra of 13,000 astronomical targets. Spec-S5, which builds and improves on the hardware used for previous cosmology experiments, represents a cost-effective and rapid approach to realizing a more than 10 gain in spectroscopic capability compared to the current state-of-the-art represented by the Dark Energy Spectroscopic Instrument project (DESI). Spec-S5 will provide a critical scientific capability in the post-Rubin and post-DESI era for advancing cosmology, fundamental physics, and astrophysics in the 2030s
LumiDays 25
No full text• DOROS BPMs: improvements since the start of Run III,
performance, known limitations & issues
• Brief comments about Arc BPMS in the context of orbit-drift
monitoring
March 2025 CMS Public Newsletter
No full textThe March 2025 issue of the CMS Newsletter for public audiences. Point Cin
FASER2: Detector Design and Performance
No full textFASER2 is a proposed upgrade to the FASER experiment, and could be hosted in the Forward Physics Facility (FPF) suggested to be 620m to the west of the ATLAS interaction point, in the far-forward region of the LHC collisions. The upgrade involves a significantly enlarged volume compared to FASER, resulting in an increase in reach for various BSM signals of several orders of magnitude and allows sensitivity to models that were previously out of reach, such as Dark Higgs and Heavy Neutral Leptons. The experiment is specifically designed to have sensitivity to long-lived particles (LLPs) produced by rare meson decays that are candidates for light dark matter. Additionally, FASER2 will play an important role in the FPF neutrino physics program and will serve as a muon spectrometer for FLArE and FASER2. This document will present different possible designs and technologies for the FASER2 detector and compare their performances for momentum resolution, physics reach and geometrical acceptance to optimise the FASER2 detector both in physics performance and cost efficiency
Searches for Dark Matter and other exotic particles from ATLAS and CMS
No full textMany theories beyond the Standard Model (SM) have been proposed to address several of the SM shortcomings: explaining the presence of a non-baryonic Dark Matter (DM) component in the Universe, why the Higgs boson is so light, the origin of neutrino masses, or the observed pattern of masses and mixing angles in the quark and lepton sectors. Many of these beyond-the-SM extensions predict new particles or interactions directly accessible at the LHC, including various DM candidates and supersymmetrical particles. This talk will present recent searches by the ATLAS detector at the LHC, their interplay, and interpretation