PUMA experiment - Revision history

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2026-04-07T11:03:36Z

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	~~{{Short description\|Particle physics experiment at CERN}}~~		The '''PUMA (antiProton Unstable Matter Annihilation) AD-9 experiment''', at the [[Antiproton Decelerator\|Antiproton decelerator]] (AD) facility at [[CERN]], Geneva, aims to look into the quantum interactions and annihilation processes between the antiprotons and the exotic slow-moving nuclei. PUMA's experimental goals require about one billion trapped antiprotons made by AD and ELENA to be transported to the ISOLDE-nuclear physics facility at CERN, which will supply the exotic nuclei.<ref>{{Cite journal\|title=PUMA, antiProton unstable matter annihilation: PUMA collaboration\|url=https://link.springer.com/10.1140/epja/s10050-022-00713-x\|journal=The European Physical Journal A\|date=\|issn=1434-601X\|volume=58\|issue=5\|doi=10.1140/epja/s10050-022-00713-x\|language=en\|first=T.\|last=Aumann\|first2=W.\|last2=Bartmann\|first3=O.\|last3=Boine-Frankenheim\|first4=A.\|last4=Bouvard\|first5=A.\|last5=Broche\|first6=F.\|last6=Butin\|first7=D.\|last7=Calvet\|first8=J.\|last8=Carbonell\|first9=P.\|last9=Chiggiato\|first10=H.\|last10=De Gersem\|first11=R.\|last11=De Oliveira\|first12=T.\|last12=Dobers\|first13=F.\|last13=Ehm\|first14=J. Ferreira\|last14=Somoza\|first15=J.\|last15=Fischer\|arxiv=2208.11604}}</ref><ref name="Obertelli 2018">{{Cite book\|last=Obertelli\|first=Alexandre\|url=https://cds.cern.ch/record/2622466?ln=en\|title=PUMA: antiprotons and radioactive nuclei\|date=2018\|others=CERN. Geneva. ISOLDE and neutron Time-of-Flight Experiments Committee, INTC\|series=Memorandum}}</ref> Antimatter has never been transported out of the AD facility before. Designing and building a trap for this transportation is the most challenging aspect for the PUMA collaboration.<ref>{{Cite web\|title=The PUMA project: Antimatter goes nomad\|url=https://home.cern/news/news/physics/puma-project-antimatter-goes-nomad\|access-date=2021-07-11\|website=CERN\|language=en}}</ref><ref name=":0">{{Cite book\|last1=Aumann\|first1=T.\|url=https://cds.cern.ch/record/2691045?ln=en\|title=PUMA: antiprotons and radioactive nuclei\|last2=Bartmann\|first2=W.\|last3=Bouvard\|first3=A.\|last4=Boine-Frankenheim\|first4=O.\|last5=Broche\|first5=A.\|last6=Butin\|first6=F.\|last7=Calvet\|first7=D.\|last8=Carbonell\|first8=J.\|last9=Chiggiato\|first9=P.\|year=2019\|others=CERN. Geneva. SPS and PS Experiments Committee, SPSC\|series=Proposal}}</ref>
	~~{{Primary sources\|date=November 2021}}~~
	~~{{Antiproton Decelerator}}~~
	~~[[File:PUMA_experiment.jpg\|thumb\|First elements of the PUMA experiment installed in the AD facility at CERN]]~~
	The '''PUMA (antiProton Unstable Matter Annihilation) AD-9 experiment''', at the [[Antiproton Decelerator\|Antiproton decelerator]] (AD) facility at [[CERN]], Geneva, aims to look into the quantum interactions and [[annihilation]] processes between the antiprotons and the ~~[[Exotic atom\|~~exotic]] slow-moving ~~[[Atomic nucleus\|~~nuclei]]. PUMA's experimental goals require about one billion trapped antiprotons made by AD and ELENA to be transported to the ~~[[On-Line Isotope Mass Separator\|~~ISOLDE]]-nuclear physics facility at CERN, which will supply the exotic nuclei.<ref>{{Cite journal\|title=PUMA, antiProton unstable matter annihilation: PUMA collaboration\|url=https://link.springer.com/10.1140/epja/s10050-022-00713-x\|journal=The European Physical Journal A\|date=\|issn=1434-601X\|volume=58\|issue=5\|doi=10.1140/epja/s10050-022-00713-x\|language=en\|first=T.\|last=Aumann\|first2=W.\|last2=Bartmann\|first3=O.\|last3=Boine-Frankenheim\|first4=A.\|last4=Bouvard\|first5=A.\|last5=Broche\|first6=F.\|last6=Butin\|first7=D.\|last7=Calvet\|first8=J.\|last8=Carbonell\|first9=P.\|last9=Chiggiato\|first10=H.\|last10=De Gersem\|first11=R.\|last11=De Oliveira\|first12=T.\|last12=Dobers\|first13=F.\|last13=Ehm\|first14=J. Ferreira\|last14=Somoza\|first15=J.\|last15=Fischer\|arxiv=2208.11604}}</ref><ref name="Obertelli 2018">{{Cite book\|last=Obertelli\|first=Alexandre\|url=https://cds.cern.ch/record/2622466?ln=en\|title=PUMA: antiprotons and radioactive nuclei\|date=2018\|others=CERN. Geneva. ISOLDE and neutron Time-of-Flight Experiments Committee, INTC\|series=Memorandum}}</ref> Antimatter has never been transported out of the AD facility before. Designing and building a trap for this transportation is the most challenging aspect for the PUMA collaboration.<ref>{{Cite web\|title=The PUMA project: Antimatter goes nomad\|url=https://home.cern/news/news/physics/puma-project-antimatter-goes-nomad\|access-date=2021-07-11\|website=CERN\|language=en}}</ref><ref name=":0">{{Cite book\|last1=Aumann\|first1=T.\|url=https://cds.cern.ch/record/2691045?ln=en\|title=PUMA: antiprotons and radioactive nuclei\|last2=Bartmann\|first2=W.\|last3=Bouvard\|first3=A.\|last4=Boine-Frankenheim\|first4=O.\|last5=Broche\|first5=A.\|last6=Butin\|first6=F.\|last7=Calvet\|first7=D.\|last8=Carbonell\|first8=J.\|last9=Chiggiato\|first9=P.\|year=2019\|others=CERN. Geneva. SPS and PS Experiments Committee, SPSC\|series=Proposal}}</ref>

	== Physics goals ==		== Physics goals ==
	The main goal of the PUMA experiment is to study the [[neutron]] and [[proton]] densities at the annihilation sites in the ~~[[Radionuclide\|~~unstable nuclei]]. These sites are formed at the tail of the nuclear densities and can be probed with low-energy ~~[[Antiproton\|~~antiprotons]].<ref>{{Cite web\|title=PUMA: antiprotons to probe the surface of radioactive nuclei\|url=https://ep-news.web.cern.ch/puma-antiprotons-probe-surface-radioactive-nuclei\|access-date=2021-08-17\|website=EP News\|language=en}}</ref> Such experiments by the PUMA collaboration will study the evolution of neutron skins with [[isospin]], and study the proton and neutron halos in exotic nuclei at the ISOLDE facility.<ref name="Obertelli 2018" /><ref name=":0" /> The idea was first proposed by Wada and Yamazaki in 2001.<ref name=":0" /> And now PUMA experiment will be the unique facility using antiprotons as probes for unstable nuclei.		The main goal of the PUMA experiment is to study the neutron and proton densities at the annihilation sites in the unstable nuclei. These sites are formed at the tail of the nuclear densities and can be probed with low-energy antiprotons.<ref>{{Cite web\|title=PUMA: antiprotons to probe the surface of radioactive nuclei\|url=https://ep-news.web.cern.ch/puma-antiprotons-probe-surface-radioactive-nuclei\|access-date=2021-08-17\|website=EP News\|language=en}}</ref> Such experiments by the PUMA collaboration will study the evolution of neutron skins with isospin, and study the proton and neutron halos in exotic nuclei at the ISOLDE facility.<ref name="Obertelli 2018" /><ref name=":0" /> The idea was first proposed by Wada and Yamazaki in 2001.<ref name=":0" /> And now PUMA experiment will be the unique facility using antiprotons as probes for unstable nuclei.

	== See also ==		== See also ==
Line 13:		Line 9:
	* [[On-Line Isotope Mass Separator\|ISOLDE]]		* [[On-Line Isotope Mass Separator\|ISOLDE]]

			For more information, see [[wikipedia:PUMA experiment\|Wikipedia]].
	== References ==		== References ==
	{{Reflist}}		{{Reflist}}
			[[Category:AD experiments]]
	[[Category:~~CERN~~ experiments]]		[[Category:Pages linking to Wikipedia]]
	[[Category:~~Particle experiments~~]]

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{{Short description|Particle physics experiment at CERN}}
{{Primary sources|date=November 2021}}
{{Antiproton Decelerator}}
[[File:PUMA_experiment.jpg|thumb|First elements of the PUMA experiment installed in the AD facility at CERN]]
The '''PUMA (antiProton Unstable Matter Annihilation) AD-9 experiment''', at the [[Antiproton Decelerator|Antiproton decelerator]] (AD) facility at [[CERN]], Geneva, aims to look into the quantum interactions and [[annihilation]] processes between the antiprotons and the [[Exotic atom|exotic]] slow-moving [[Atomic nucleus|nuclei]]. PUMA's experimental goals require about one billion trapped antiprotons made by AD and ELENA to be transported to the [[On-Line Isotope Mass Separator|ISOLDE]]-nuclear physics facility at CERN, which will supply the exotic nuclei.<ref>{{Cite journal|title=PUMA, antiProton unstable matter annihilation: PUMA collaboration|url=https://link.springer.com/10.1140/epja/s10050-022-00713-x|journal=The European Physical Journal A|date=|issn=1434-601X|volume=58|issue=5|doi=10.1140/epja/s10050-022-00713-x|language=en|first=T.|last=Aumann|first2=W.|last2=Bartmann|first3=O.|last3=Boine-Frankenheim|first4=A.|last4=Bouvard|first5=A.|last5=Broche|first6=F.|last6=Butin|first7=D.|last7=Calvet|first8=J.|last8=Carbonell|first9=P.|last9=Chiggiato|first10=H.|last10=De Gersem|first11=R.|last11=De Oliveira|first12=T.|last12=Dobers|first13=F.|last13=Ehm|first14=J. Ferreira|last14=Somoza|first15=J.|last15=Fischer|arxiv=2208.11604}}</ref><ref name="Obertelli 2018">{{Cite book|last=Obertelli|first=Alexandre|url=https://cds.cern.ch/record/2622466?ln=en|title=PUMA: antiprotons and radioactive nuclei|date=2018|others=CERN. Geneva. ISOLDE and neutron Time-of-Flight Experiments Committee, INTC|series=Memorandum}}</ref> Antimatter has never been transported out of the AD facility before. Designing and building a trap for this transportation is the most challenging aspect for the PUMA collaboration.<ref>{{Cite web|title=The PUMA project: Antimatter goes nomad|url=https://home.cern/news/news/physics/puma-project-antimatter-goes-nomad|access-date=2021-07-11|website=CERN|language=en}}</ref><ref name=":0">{{Cite book|last1=Aumann|first1=T.|url=https://cds.cern.ch/record/2691045?ln=en|title=PUMA: antiprotons and radioactive nuclei|last2=Bartmann|first2=W.|last3=Bouvard|first3=A.|last4=Boine-Frankenheim|first4=O.|last5=Broche|first5=A.|last6=Butin|first6=F.|last7=Calvet|first7=D.|last8=Carbonell|first8=J.|last9=Chiggiato|first9=P.|year=2019|others=CERN. Geneva. SPS and PS Experiments Committee, SPSC|series=Proposal}}</ref>

== Physics goals ==
The main goal of the PUMA experiment is to study the [[neutron]] and [[proton]] densities at the annihilation sites in the [[Radionuclide|unstable nuclei]]. These sites are formed at the tail of the nuclear densities and can be probed with low-energy [[Antiproton|antiprotons]].<ref>{{Cite web|title=PUMA: antiprotons to probe the surface of radioactive nuclei|url=https://ep-news.web.cern.ch/puma-antiprotons-probe-surface-radioactive-nuclei|access-date=2021-08-17|website=EP News|language=en}}</ref> Such experiments by the PUMA collaboration will study the evolution of neutron skins with [[isospin]], and study the proton and neutron halos in exotic nuclei at the ISOLDE facility.<ref name="Obertelli 2018" /><ref name=":0" /> The idea was first proposed by Wada and Yamazaki in 2001.<ref name=":0" /> And now PUMA experiment will be the unique facility using antiprotons as probes for unstable nuclei.

== See also ==

* [[Antiproton Decelerator|Antiproton decelerator]]
* [[On-Line Isotope Mass Separator|ISOLDE]]

== References ==
{{Reflist}}

[[Category:CERN experiments]]
[[Category:Particle experiments]]