✉news SciencePhysics first seen 2 d ago, last 2 d ago, peak #25
LHCb's 3.2-sigma decay: a discovery or not yet?
Original: Is the zeptoverse result a discovery? Not yet: the 40-year hunt behind LHCb's 3.2-sigma decay
The LHCb experiment's observation of a rare decay at 3.2-sigma significance is drawing scrutiny, with physicists asking whether the long-sought result can be called a discovery. Researchers note the finding caps a roughly 40-year experimental hunt, but 3.2 sigma falls short of the five-sigma standard conventionally required in particle physics, so the result is being treated as promising evidence rather than a confirmed discovery pending more data and independent verification.
Why now: New results from the LHCb experiment touch on a rare decay pursued for decades, prompting debate over whether the statistical evidence is strong enough to count as a discovery.
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Evidence
- Is the zeptoverse result a discovery? Not yet: the 40-year hunt behind LHCb's 3.2-sigma decay · Nacionale
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