• Pixel-art Sigmarel, the Five-Sigma Gatekeeper, on a black mug with the slogan "1 IN 3.5 MILLION OR IT DIDN'T HAPPEN."

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Sigmarel, the Five-Sigma Gatekeeper Mug

\[Z = \Phi^{-1}(1 - p)\]
$21.99 USD
$21.99 USD
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The particle-physics discovery convention is 5σ, a one-sided p-value of about 2.9 × 10⁻⁷, roughly 1 in 3.5 million.

The joke: The bar is absurdly high because of systematics and the trials factor. The slogan on the mug reads 1 IN 3.5 MILLION OR IT DIDN'T HAPPEN.

Source: Particle Data Group, R. L. Workman et al., Prog. Theor. Exp. Phys. 2022, 083C01, 'Statistics' review.

Shipping calculated at checkout by destinationMade to order, ships in ~10 days

Details

Size & material11oz · 15oz

Black glossy ceramic mug with a C-handle. Lead- and BPA-free.

  • 11oz: 0.33 l
  • 15oz: 0.44 l
CareDishwasher & microwave safe

Dishwasher safe (top rack) or hand wash. Microwave safe.

ShippingBy destination

Shipping calculated at checkout by destination.

Made to order: about 10 days of production and handling before it ships.

Delivery times & where we ship

Returns & replacements21 days

Every item is printed to order, so we can’t accept returns or exchanges for change of mind, or if you ordered the wrong size or colour.

Print defect, misprint, damage or the wrong item? We’ll send a free replacement, or a refund if you prefer. Report it within 21 days of delivery with a photo; no need to send it back.

Full refund & replacement policy

The physics

The particle-physics discovery convention is 5σ, a one-sided p-value of about 2.9 × 10⁻⁷, roughly 1 in 3.5 million.

The joke: The bar is absurdly high because of systematics and the trials factor. The slogan on the mug reads 1 IN 3.5 MILLION OR IT DIDN'T HAPPEN.

Source: Particle Data Group, R. L. Workman et al., Prog. Theor. Exp. Phys. 2022, 083C01, 'Statistics' review.

Equations

\[Z = \Phi^{-1}(1 - p)\]
\[Z = 5 \;\Rightarrow\; p \approx 2.87 \times 10^{-7}\]
SymbolMeaningUnit
\(Z\) significance (number of σ) —
\(p\) one-sided p-value —
\(\Phi\) standard Gaussian cumulative distribution —

Sources

  1. Particle Data Group, R. L. Workman et al., Prog. Theor. Exp. Phys. 2022, 083C01, 'Statistics' review

Field notes

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