View source for Template:Decay modes

{| class="wikitable collapsible uncollapsed sortable" style="font-size:90%; text-align:left;"
|-
! colspan=4 | {{navbar-collapsible|Decay modes in NUBASE 2020<ref>{{NUBASE2020}}</ref>|Template:Decay modes}}
|- style="background:#eee0e0; white-space:nowrap;"
! Mode
! Name
! style="max-width:30%;" | Action
! Nucleus changes<!-- A, Z daughter nucleus effect -->
|-
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{{Decay modes/row-publish
| sort=10 |mode=α
| name=[[Alpha decay|Alpha emission]]
| action=An [[alpha particle]] (''A''&nbsp;=&nbsp;4, ''Z''&nbsp;=&nbsp;2) emitted from nucleus
| AZ= (''A''&nbsp;−&nbsp;4,&nbsp;''Z''&nbsp;−&nbsp;2)
| note= | note2020=
| status= }}
{{Decay modes/row-publish
| sort=20 |mode=p
| name=[[Proton emission]]
| action=A [[proton]] ejected from nucleus
| AZ= (''A''&nbsp;−&nbsp;1,&nbsp;''Z''&nbsp;−&nbsp;1)
| note= | note2020=
| status= }}
{{Decay modes/row-publish
| sort=30 |mode=2p
| nameR=[[Proton emission]]<br/>lbl:2-proton emission
| name=[[Proton emission|2-proton emission]]
| action=Two protons ejected from nucleus simultaneously
| AZ= (''A''&nbsp;−&nbsp;2,&nbsp;''Z''&nbsp;−&nbsp;2)
| note= | note2020=
| status= }}
{{Decay modes/row-publish
| sort=40 |mode=n
| name=[[Neutron emission]]
| action=A [[neutron]] ejected from nucleus
| AZ= (''A''&nbsp;−&nbsp;1,&nbsp;''Z'')
| note= | note2020=
| status= }}
{{Decay modes/row-publish
| sort=50 |mode=2n
| nameR=[[Neutron emission]]<br/>lbl:2-neutron emission
| name=[[Neutron emission|2-neutron emission]]
| action=Two neutrons ejected from nucleus simultaneously
| AZ= (''A''&nbsp;−&nbsp;2,&nbsp;''Z'')
| note= | note2020=
| status= }}
{{Decay modes/row-publish
| sort=60 |mode=ε
| name=[[Electron capture]]
| action= A nucleus captures an orbiting electron and emits a neutrino; the daughter nucleus is left in an excited unstable state
| AZ= (''A'',&nbsp;''Z''&nbsp;−&nbsp;1)
| note enwiki="EC" not in table; see 62
| status= }}
{{Decay modes/row-publish
| sort=70 |mode=e<sup>+</sup>
| name=[[Positron emission]]
| action= A nuclear proton converts to a neutron by emitting a positron and an electron neutrino
| AZ= (''A'',&nbsp;''Z''&nbsp;−&nbsp;1)
| note= | note2020=new
| status= }}
{{Decay modes/row-publish
| sort=80 |mode=β<sup>+</sup>
| nameR= ''{{noredirect|Beta plus decay|β plus decay}}''&rarr;
| name= [[Positron emission]]
| action= In NUBASE2020, β<sup>+</sup> refers to the ''combined'' rate of electron capture (ε) and positron emission (e<sup>+</sup>): {{nowrap|1=(β<sup>+</sup> = ε + e<sup>+</sup>)}}
| AZ= (''A'',&nbsp;''Z''&nbsp;−&nbsp;1)
| note= | note2020=
| status= }}
{{Decay modes/row-publish
| sort=90 |mode=β<sup>−</sup>
| nameR= ''{{noredirect|Beta minus decay|β minus decay}}''&rarr;
| name= [[Beta decay|β<sup>&minus;</sup> decay]]
| action=A nucleus emits an [[electron]] and an [[electron antineutrino]]
| AZ= (''A'',&nbsp;''Z''&nbsp;+&nbsp;1)
| note= | note2020=
| status= }}
{{Decay modes/row-publish
| sort=100 |mode=2β<sup>−</sup>
| nameR=[[Double beta decay]]<br/>lbl:Double β decay
| name=[[Double beta decay|Double β decay]]
| action=A nucleus emits two electrons and two antineutrinos
| AZ= (''A'',&nbsp;''Z''&nbsp;+&nbsp;2)
| note= | note2020=
| status= }}
{{Decay modes/row-publish
| sort=110 |mode=2β<sup>+</sup>
| nameR=''{{noredirect|Double positron decay}}''&rarr;
| name=[[Double beta decay|Double β decay]]
| action=A nucleus emits two positrons and two neutrinos
| AZ= (''A'',&nbsp;''Z''&nbsp;−&nbsp;2)
| note enwiki=''in enwiki noted as β<sup>+</sup>β<sup>+</sup>'' 
| note2020=
| status= }}
{{Decay modes/row-publish
| sort=120 |mode=β<sup>−</sup>n
|name= [[Delayed neutron|β<sup>−</sup>-delayed]] neutron emission
|action=  A nucleus decays by &beta;<sup>&minus;</sup> emission to an excited state, which then emits a neutron
|AZ= (''A''&nbsp;−&nbsp;1,&nbsp;''Z''&nbsp;+&nbsp;1)
|note=(already in NUBASE2016 table) |note enwiki=new for enwiki
| status= }}
{{Decay modes/row-publish
| sort=130 |mode=β<sup>−</sup>2n
|name= β<sup>−</sup>-delayed 2-neutron emission
|action=  A nucleus decays by &beta;<sup>&minus;</sup> emission to an excited state, which then emits two neutrons
|AZ= (''A''&nbsp;−&nbsp;2,&nbsp;''Z''&nbsp;+&nbsp;1)
|note=(already in NUBASE2016 table) |note enwiki=new for enwiki
| status= }}
{{Decay modes/row-publish
| sort=140 |mode=β<sup>−</sup>3n
|name= β<sup>−</sup>-delayed 3-neutron emission
|action=  A nucleus decays by &beta;<sup>&minus;</sup> emission to an excited state, which then emits three neutrons
|AZ= (''A''&nbsp;−&nbsp;3,&nbsp;''Z''&nbsp;+&nbsp;1)
|note= |note2020=new in 2020
| status= }}
{{Decay modes/row-publish
| sort=150 |mode=β<sup>+</sup>p
|name= β<sup>+</sup>-delayed proton emission
|action= A nucleus decays by &beta;<sup>+</sup> emission to an excited state, which then emits a proton
|AZ= (''A''&nbsp;−&nbsp;1,&nbsp;''Z''&nbsp;−&nbsp;2)
|note=(already in NUBASE2016 table) |note enwiki=new for enwiki
| status= }}
{{Decay modes/row-publish
| sort=160 |mode=β<sup>+</sup>2p
|name= β<sup>+</sup>-delayed 2-proton emission
|action= A nucleus decays by &beta;<sup>+</sup> emission to an excited state, which then emits two protons
|AZ= (''A''&nbsp;−&nbsp;2,&nbsp;''Z''&nbsp;−&nbsp;3)
|note=(already in NUBASE2016 table)  |note enwiki=new for enwiki
| status= }}
{{Decay modes/row-publish
| sort=170 |mode=β<sup>+</sup>3p
|name= β<sup>+</sup>-delayed 3-proton emission
|action= A nucleus decays by &beta;<sup>+</sup> emission to an excited state, which then emits three protons
|AZ= (''A''&nbsp;−&nbsp;3,&nbsp;''Z''&nbsp;−&nbsp;4)
|note= |note2020=new in 2020
| status= }}
{{Decay modes/row-publish
| sort=180 |mode=β<sup>−</sup>α
|name= β<sup>−</sup>-delayed alpha emission
|action= A nucleus decays by &beta;<sup>&minus;</sup> emission to an excited state, which then emits an α particle
|AZ= (''A''&nbsp;−&nbsp;4,&nbsp;''Z''&nbsp;−&nbsp;1)
|note=(already in NUBASE2016 table) |note enwiki=new for enwiki
| status= }}
{{Decay modes/row-publish
| sort=190 |mode=β<sup>+</sup>α
|name= β<sup>+</sup>-delayed alpha emission
|action= A nucleus decays by &beta;<sup>+</sup> emission to an excited state, which then emits an α particle
|AZ= (''A''&nbsp;−&nbsp;4,&nbsp;''Z''&nbsp;−&nbsp;3)
|note=(already in NUBASE2016 table) |note enwiki=new for enwiki
| status= }}
{{Decay modes/row-publish
| sort=200 |mode=β<sup>−</sup>d
|name= β<sup>−</sup>-delayed deuteron emission
|action= A nucleus decays by &beta;<sup>&minus;</sup> emission to an excited state, which then emits a deuteron
|AZ= (''A''&nbsp;−&nbsp;2,&nbsp;''Z'')
|note=(already in NUBASE2016 table) |note enwiki=new for enwiki
| status= }}
{{Decay modes/row-publish
| sort=210 |mode=β<sup>&minus;</sup>t
|name= β<sup>−</sup>-delayed triton emission
|action= A nucleus decays by &beta;<sup>&minus;</sup> emission to an excited state, which then emits a triton
|AZ= (''A''&nbsp;−&nbsp;3,&nbsp;''Z'')
|note= |note2020=new in 2020
| status= }}
{{Decay modes/row-publish
| sort=262 |mode=CD
| name=[[Cluster decay]]
| action=A nucleus emits a specific type of smaller nucleus (''A''<sub>1</sub>, ''Z''<sub>1</sub>) which is larger than an alpha particle
| AZ= (''A''&nbsp;−&nbsp;''A''<sub>1</sub>,&nbsp;''Z''&nbsp;−&nbsp;''Z''<sub>1</sub>) &amp; (''A''<sub>1</sub>, ''Z''<sub>1</sub>)
| note= | note2020 |note enwiki=not in 2020; same as 260?
| status= }}
|-
{{Decay modes/row-publish
| sort=305 |mode=IT
| nameR={{slink|Nuclear_isomer|Decay_processes}} lbl:Internal (isomeric) transition
| name=[[Nuclear_isomer#Decay_processes|Internal (isomeric) transition]]
| action=A nucleus in a metastable state drops to a lower energy state by emitting a photon or ejecting an electron
| AZ= (''A'',&nbsp;''Z'')
|
| status= }}
{{Decay modes/row-publish
| sort=310 |mode=SF
| name=[[Spontaneous fission]]
| action=A nucleus disintegrates into two or more smaller nuclei and other particles, all of which may vary with each decay
| AZ= variable
|
| status= }}
{{Decay modes/row-publish
| sort=320 |mode=&beta;<sup>+</sup>SF
| name= &beta;<sup>+</sup>-delayed fission
| action= A nucleus decays by &beta;<sup>+</sup> emission to an excited state, which then undergoes spontaneous fission
| AZ= &beta;<sup>+</sup> &amp; variable
|
| status= }}
{{Decay modes/row-publish
| sort=330 |mode=&beta;<sup>&minus;</sup>SF
| name= &beta;<sup>&minus;</sup>-delayed fission
| action= A nucleus decays by &beta;<sup>&minus;</sup> emission to an excited state, which then undergoes spontaneous fission
| AZ= &beta;<sup>&minus;</sup> &amp; variable
|
| status= }}

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