Tetraneutron

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

The tetraneutron is considered an unbound isotope with a lifetime around 10−22 seconds. The stability of this cluster of four neutrons is not supported by current models of nuclear forces. Recent empirical evidence is "consistent with a quasi-bound tetraneutron state existing for a very short time".

Excerpt from the Wikipedia article “Tetraneutron”, under the CC BY-SA 4.0 license. Read the article on Wikipedia