Editing Antimatter (section)

===Preservation===
<!--===Antimatter trap===!-->

Antimatter cannot be stored in a container made of ordinary matter because antimatter reacts with any matter it touches, annihilating itself and an equal amount of the container. Antimatter in the form of [[charged particle]]s can be contained by a combination of [[electric field|electric]] and [[magnetic field|magnetic]] fields, in a device called a [[Penning trap]]. This device cannot, however, contain antimatter that consists of uncharged particles, for which [[atomic trap]]s are used. In particular, such a trap may use the [[dipole]] moment ([[Electric dipole moment|electric]] or [[Magnetic moment|magnetic]]) of the trapped particles. At high [[vacuum]], the matter or antimatter particles can be trapped and cooled with slightly off-resonant laser radiation using a [[magneto-optical trap]] or [[Magnetic trap (atoms)|magnetic trap]]. Small particles can also be suspended with [[optical tweezers]], using a highly focused laser beam.<ref>
{{cite journal
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 |year=2014
 |title=An experimental test of the weak equivalence principle for antihydrogen at the future FLAIR facility
 |journal=[[International Journal of Modern Physics: Conference Series]]
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In 2011, [[CERN]] scientists were able to preserve antihydrogen for approximately 17 minutes.<ref>{{cite news|date=9 June 2011|title=Antimatter of Fact|url=http://www.economist.com/node/18802932|newspaper=The Economist|archive-url=https://web.archive.org/web/20140217051839/http://www.economist.com/node/18802932|archive-date=17 February 2014}}</ref> The record for storing antiparticles is currently held by the TRAP experiment at CERN: antiprotons were kept in a Penning trap for 405 days.<ref>{{Cite journal|title=Improved limit on the directly measured antiproton lifetime|journal=New Journal of Physics|year=2017|doi=10.1088/1367-2630/aa7e73|last1=Sellner|first1=S.|last2=Besirli|first2=M.|last3=Bohman|first3=M.|last4=Borchert|first4=M. J.|last5=Harrington|first5=J.|last6=Higuchi|first6=T.|last7=Mooser|first7=A.|last8=Nagahama|first8=H.|last9=Schneider|first9=G.|last10=Smorra|first10=C.|last11=Tanaka|first11=T.|last12=Blaum|first12=K.|last13=Matsuda|first13=Y.|last14=Ospelkaus|first14=C.|last15=Quint|first15=W.|last16=Walz|first16=J.|last17=Yamazaki|first17=Y.|last18=Ulmer|first18=S.|volume=19|issue=8|page=083023|bibcode=2017NJPh...19h3023S|doi-access=free}}</ref> A proposal was made in 2018 to develop containment technology advanced enough to contain a billion anti-protons in a portable device to be driven to another lab for further experimentation.<ref>
{{cite journal|last1=Gibney |first1=E.|year=2018|title=Physicists plan antimatter's first outing – in a van|journal=[[Nature (journal)|Nature]]|volume=554 |issue=7693 |pages=412–413|bibcode=2018Natur.554..412G|doi=10.1038/d41586-018-02221-9|pmid=29469122|s2cid=4448531|doi-access=free}}</ref>