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LHCb's Charming Penguin Anomaly Has a Wait Day as Run Three Holds Three Times the 2018 Data

The LHCb collaboration spent Sunday doing what particle physics does most of the time — waiting for more data. [1] The four-sigma anomaly in the charming-penguin B-meson decay, reported Saturday and named in the paper as a binary between five-sigma confirmation and quiet collapse, will be resolved by the Run 3 dataset — which already contains roughly three times the integrated luminosity of the full 2018 set and is still running. [2]

That arithmetic is the contrast piece. Run 3 began in July 2022 and is scheduled through 2026; the next long shutdown follows. [2] A discovery in particle physics is an apparatus, a calibration, a paper, a pre-print, an independent reanalysis, and a five-sigma threshold that survives statistical look-elsewhere correction. None of those steps are dismissable by email.

The National Science Board, fired April 24, was. [3] Nine days later no replacements have been named. The Forest Service shuttered fifty-seven wildfire research labs the same week. The MMWR queue under the new CDC principal-deputy line authority has not moved on the unpublished Covid-vaccine report or the hep-B birth-dose operational guidance two Fridays in a row. [4]

The charming penguin is not a coincidence on the calendar; it is a different kind of clock entirely. CERN's clock ticks in fb⁻¹. Washington's, this season, ticks in inboxes.

-- KENJI NAKAMURA, Geneva

Sources & X Posts

News Sources
[1] https://phys.org/news/2026-04-lhc-decay-anomaly-reveals-standard.html
[2] https://home.cern/news/news/accelerators/lhc-run-3-progress
[3] https://www.science.org/content/article/trump-fires-nsf-s-oversight-board
[4] https://www.cdc.gov/mmwr/index2026.html
X Posts
[5] Run 3 has already collected more than three times the integrated luminosity of Run 2 at 13.6 TeV. https://x.com/LHCbExperiment/status/1917432189546782341

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