2026-01-19
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Combination of searches for heavy vector boson resonances in proton-proton collisions at $ \sqrt{s}= $ 13 TeV
A combined statistical analysis of searches for heavy vector boson resonances decaying into pairs of W, Z, or Higgs bosons, as well as into quark pairs ($ \mathrm{q}\overline{\mathrm{q}} $, $ \mathrm{b}\overline{\mathrm{b}} $, $ \mathrm{t} \overline{\mathrm{t}} $, $ \mathrm{t}\overline{\mathrm{b}} $) or lepton pairs ($ \ell^{+}\ell^{-} $, $ \ell\overline{\nu} $), with $ \ell = \mathrm{e}, \mu, \tau $, is presented. [...]
CERN-EP-2025-270 ; CMS-B2G-25-003-003.
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2026
Additional information for the analysis - CMS AuthorList - Fulltext
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2026-01-19
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2026-01-17
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2026-01-17
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2026-01-17
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A cosmologist's take on Little Red Dots
/ De Luca, Valerio ; Del Grosso, Loris ; Franciolini, Gabriele ; Kritos, Konstantinos ; Berti, Emanuele ; D'Orazio, Daniel ; Silk, Joseph
The James Webb Space Telescope (JWST) has uncovered a population of compact, high-redshift sources, the Little Red Dots (LRDs), which may host supermassive black holes (BHs) significantly heavier than their stellar content compared with local scaling relations. [...]
CERN-TH-2025-261 ; arXiv:2512.19666.
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2026-01-15
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μRWELL-PICOSEC: Precision Timing with Resistive Micro-Well Detector
/ Gnanvo, K. (Jefferson Lab) ; Aleksan, R. (IRFU, Saclay) ; Angelis, Y. (Aristotle U., Thessaloniki ; Thessaloniki U.) ; Aune, S. (IRFU, Saclay) ; Bortfeldt, J. (LMU Munich (main)) ; Brunbauer, F. (CERN) ; Brunoldi, M. (Pavia U. ; INFN, Pavia) ; Chatzianagnostou, E. (Aristotle U., Thessaloniki ; Thessaloniki U.) ; Datta, J. (SUNY, Stony Brook) ; Dehmelt, K. (Jefferson Lab) et al.
The PICOSEC detector concept uses a micro-pattern gaseous detector (MPGD) amplification structure combined with a Cerenkov radiator coated with a semi-transparent photocathode to provide below tens of picosecond-level precision timing capabilities with minimum ionizing particles. [...]
arXiv:2512.10137.
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First comments on a descoped/staged FCC-ee
/ Blondel, Alain (LPNHE, Paris) ; Grojean, Christophe (DESY ; Humboldt U., Berlin) ; Janot, Patrick (CERN) ; Wilkinson, Guy (Oxford U.)
In response to its remit, the European Strategy Group (ESG) recommended the electron-positron Future Circular Collider (FCC-ee) as the preferred option for the next flagship collider at CERN; and a descoped FCC-ee as the preferred alternative option (with reduced synchrotron radiation (SR) power, without a run at the $\rm t \bar t$ threshold, and with only two interaction regions) in the event that the preferred option turns out not to be feasible. [...]
arXiv:2601.05283.
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2026-01-15
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2026-01-15
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An Optimal Observable Machine for reinterpretable measurements in high-energy physics
/ Mohr, Torben (KIT, Karlsruhe ; Gent U.) ; Quiroga Triviño, Alejandro (KIT, Karlsruhe) ; Riemer, Fabian (KIT, Karlsruhe) ; Monsch, Artur (KIT, Karlsruhe) ; Defranchis, Matteo (CERN) ; Knolle, Joscha (KIT, Karlsruhe) ; Mehta, Ankita (CERN) ; Kieseler, Jan (KIT, Karlsruhe) ; Klute, Markus (KIT, Karlsruhe)
A machine-learning-based framework for constructing generator-level observables optimized for parameter extraction in particle physics analyses is introduced, referred to as the Optimal Observable Machine (OOM). [...]
arXiv:2601.08813.
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