Editing Hypernucleus (section)

== History ==
The first was discovered by [[Marian Danysz]] and [[Jerzy Pniewski]] in 1952 using a [[nuclear emulsion]] plate exposed to [[cosmic ray]]s, based on their energetic but delayed decay. This event was inferred to be due to a nuclear fragment containing a Λ baryon.<ref>{{cite journal |last1=Danysz |first1=M. |last2=Pniewski |first2=J. |title=Delayed disintegration of a heavy nuclear fragment: I |journal=The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science |date=March 1953 |volume=44 |issue=350 |pages=348–350 |doi=10.1080/14786440308520318}}</ref> Experiments until the 1970s would continue to study hypernuclei produced in emulsions using cosmic rays, and later using [[pion]] (π) and [[kaon]] (K) beams from [[particle accelerator]]s.{{sfn|Gal|Hungerford|Millener|2016|p=2}}

Since the 1980s, more efficient production methods using pion and kaon beams have allowed further investigation at various accelerator facilities, including [[CERN]], [[Brookhaven National Laboratory]], [[KEK]], [[DAφNE]], and [[JPARC]].{{sfn|Gal|Hungerford|Millener|2016|p=4}}{{sfn|Tolos|Fabbietti|2020|p=29}} In the 2010s, [[heavy ion]] experiments such as [[ALICE experiment|ALICE]] and [[STAR experiment|STAR]] first allowed the production and measurement of light hypernuclei formed through [[hadronization]] from [[quark–gluon plasma]].{{sfn|Tolos|Fabbietti|2020|pp=53–54}}