Restoration of isospin symmetry in highly excited compound nuclei

We have deduced compound nuclear isospin mixing in [sup 28]Si[sup *] and [sup 26]Al[sup *] at excitation energies between 33 and 65 MeV. The [gamma]-ray yield from the decay of giant dipole resonances built on excited states is found to be suppressed, implying that isospin mixing is small. By compar...

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Published in:Physical review letters 1993-05, Vol.70 (21), p.3201-3204
Main Authors: Behr, JA, Snover, KA, Gossett, CA, Kicinska-Habior, M, Gundlach, JH, Drebi, ZM, Kaplan, MS, Wells, DP
Format: Article
Language:English
Subjects:
ALKALINE EARTH ISOTOPES
ALUMINIUM 26
ALUMINIUM 28
ALUMINIUM ISOTOPES
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BORON 11 TARGET
CARBON 12
CARBON 12 TARGET
CARBON 13 REACTIONS
CARBON 13 TARGET
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
CROSS SECTIONS
DECAY
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXCITED STATES
GIANT RESONANCE
HADRON REACTIONS
HEAVY ION REACTIONS
ISOSPIN
ISOTOPES
LIGHT NUCLEI
MAGNESIUM 26
MAGNESIUM ISOTOPES
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
MIXING
NITROGEN 14 REACTIONS
NITROGEN 15 REACTIONS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-ODD NUCLEI
OXYGEN 16 REACTIONS
OXYGEN 18 REACTIONS
PARTICLE DECAY
PARTICLE PROPERTIES
PROTON REACTIONS
RADIATIVE DECAY
RADIOISOTOPES
RESONANCE
SECONDS LIVING RADIOISOTOPES
SILICON 28
SILICON 30
SILICON ISOTOPES
STABLE ISOTOPES
SYMMETRY BREAKING
TARGETS
YEARS LIVING RADIOISOTOPES 663300 > Nuclear Reactions & Scattering, General-- (1992-)
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cited_by cdi_FETCH-LOGICAL-c330t-c50e3a476a6826bd51a40b8186b8436fe1ed55233a70ff9c30d702876f700d843
cites cdi_FETCH-LOGICAL-c330t-c50e3a476a6826bd51a40b8186b8436fe1ed55233a70ff9c30d702876f700d843
container_end_page 3204
container_issue 21
container_start_page 3201
container_title Physical review letters
container_volume 70
creator Behr, JA
Snover, KA
Gossett, CA
Kicinska-Habior, M
Gundlach, JH
Drebi, ZM
Kaplan, MS
Wells, DP
description We have deduced compound nuclear isospin mixing in [sup 28]Si[sup *] and [sup 26]Al[sup *] at excitation energies between 33 and 65 MeV. The [gamma]-ray yield from the decay of giant dipole resonances built on excited states is found to be suppressed, implying that isospin mixing is small. By comparison with data from the literature at lower excitation energy, we conclude that isospin is a better symmetry in these compound nuclei at high excitation energy.
doi_str_mv 10.1103/PhysRevLett.70.3201
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The [gamma]-ray yield from the decay of giant dipole resonances built on excited states is found to be suppressed, implying that isospin mixing is small. By comparison with data from the literature at lower excitation energy, we conclude that isospin is a better symmetry in these compound nuclei at high excitation energy.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.70.3201</identifier><identifier>PMID: 10053808</identifier><language>eng</language><publisher>United States</publisher><subject>ALKALINE EARTH ISOTOPES ; ALUMINIUM 26 ; ALUMINIUM 28 ; ALUMINIUM ISOTOPES ; BARYON REACTIONS ; BETA DECAY RADIOISOTOPES ; BETA-MINUS DECAY RADIOISOTOPES ; BETA-PLUS DECAY RADIOISOTOPES ; BORON 11 TARGET ; CARBON 12 ; CARBON 12 TARGET ; CARBON 13 REACTIONS ; CARBON 13 TARGET ; CARBON ISOTOPES ; CHARGED-PARTICLE REACTIONS ; COMPOUND NUCLEI ; CROSS SECTIONS ; DECAY ; ENERGY LEVELS ; ENERGY RANGE ; EVEN-EVEN NUCLEI ; EXCITED STATES ; GIANT RESONANCE ; HADRON REACTIONS ; HEAVY ION REACTIONS ; ISOSPIN ; ISOTOPES ; LIGHT NUCLEI ; MAGNESIUM 26 ; MAGNESIUM ISOTOPES ; MEV RANGE ; MEV RANGE 10-100 ; MEV RANGE 100-1000 ; MINUTES LIVING RADIOISOTOPES ; MIXING ; NITROGEN 14 REACTIONS ; NITROGEN 15 REACTIONS ; NUCLEAR PHYSICS AND RADIATION PHYSICS ; NUCLEAR REACTIONS ; NUCLEI ; NUCLEON REACTIONS ; ODD-ODD NUCLEI ; OXYGEN 16 REACTIONS ; OXYGEN 18 REACTIONS ; PARTICLE DECAY ; PARTICLE PROPERTIES ; PROTON REACTIONS ; RADIATIVE DECAY ; RADIOISOTOPES ; RESONANCE ; SECONDS LIVING RADIOISOTOPES ; SILICON 28 ; SILICON 30 ; SILICON ISOTOPES ; STABLE ISOTOPES ; SYMMETRY BREAKING ; TARGETS ; YEARS LIVING RADIOISOTOPES 663300 -- Nuclear Reactions &amp; Scattering, General-- (1992-)</subject><ispartof>Physical review letters, 1993-05, Vol.70 (21), p.3201-3204</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c330t-c50e3a476a6826bd51a40b8186b8436fe1ed55233a70ff9c30d702876f700d843</citedby><cites>FETCH-LOGICAL-c330t-c50e3a476a6826bd51a40b8186b8436fe1ed55233a70ff9c30d702876f700d843</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/10053808$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/6770844$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Behr, JA</creatorcontrib><creatorcontrib>Snover, KA</creatorcontrib><creatorcontrib>Gossett, CA</creatorcontrib><creatorcontrib>Kicinska-Habior, M</creatorcontrib><creatorcontrib>Gundlach, JH</creatorcontrib><creatorcontrib>Drebi, ZM</creatorcontrib><creatorcontrib>Kaplan, MS</creatorcontrib><creatorcontrib>Wells, DP</creatorcontrib><title>Restoration of isospin symmetry in highly excited compound nuclei</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>We have deduced compound nuclear isospin mixing in [sup 28]Si[sup *] and [sup 26]Al[sup *] at excitation energies between 33 and 65 MeV. The [gamma]-ray yield from the decay of giant dipole resonances built on excited states is found to be suppressed, implying that isospin mixing is small. By comparison with data from the literature at lower excitation energy, we conclude that isospin is a better symmetry in these compound nuclei at high excitation energy.</description><subject>ALKALINE EARTH ISOTOPES</subject><subject>ALUMINIUM 26</subject><subject>ALUMINIUM 28</subject><subject>ALUMINIUM ISOTOPES</subject><subject>BARYON REACTIONS</subject><subject>BETA DECAY RADIOISOTOPES</subject><subject>BETA-MINUS DECAY RADIOISOTOPES</subject><subject>BETA-PLUS DECAY RADIOISOTOPES</subject><subject>BORON 11 TARGET</subject><subject>CARBON 12</subject><subject>CARBON 12 TARGET</subject><subject>CARBON 13 REACTIONS</subject><subject>CARBON 13 TARGET</subject><subject>CARBON ISOTOPES</subject><subject>CHARGED-PARTICLE REACTIONS</subject><subject>COMPOUND NUCLEI</subject><subject>CROSS SECTIONS</subject><subject>DECAY</subject><subject>ENERGY LEVELS</subject><subject>ENERGY RANGE</subject><subject>EVEN-EVEN NUCLEI</subject><subject>EXCITED STATES</subject><subject>GIANT RESONANCE</subject><subject>HADRON REACTIONS</subject><subject>HEAVY ION REACTIONS</subject><subject>ISOSPIN</subject><subject>ISOTOPES</subject><subject>LIGHT NUCLEI</subject><subject>MAGNESIUM 26</subject><subject>MAGNESIUM ISOTOPES</subject><subject>MEV RANGE</subject><subject>MEV RANGE 10-100</subject><subject>MEV RANGE 100-1000</subject><subject>MINUTES LIVING RADIOISOTOPES</subject><subject>MIXING</subject><subject>NITROGEN 14 REACTIONS</subject><subject>NITROGEN 15 REACTIONS</subject><subject>NUCLEAR PHYSICS AND RADIATION PHYSICS</subject><subject>NUCLEAR REACTIONS</subject><subject>NUCLEI</subject><subject>NUCLEON REACTIONS</subject><subject>ODD-ODD NUCLEI</subject><subject>OXYGEN 16 REACTIONS</subject><subject>OXYGEN 18 REACTIONS</subject><subject>PARTICLE DECAY</subject><subject>PARTICLE PROPERTIES</subject><subject>PROTON REACTIONS</subject><subject>RADIATIVE DECAY</subject><subject>RADIOISOTOPES</subject><subject>RESONANCE</subject><subject>SECONDS LIVING RADIOISOTOPES</subject><subject>SILICON 28</subject><subject>SILICON 30</subject><subject>SILICON ISOTOPES</subject><subject>STABLE ISOTOPES</subject><subject>SYMMETRY BREAKING</subject><subject>TARGETS</subject><subject>YEARS LIVING RADIOISOTOPES 663300 -- Nuclear Reactions &amp; 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Snover, KA ; Gossett, CA ; Kicinska-Habior, M ; Gundlach, JH ; Drebi, ZM ; Kaplan, MS ; Wells, DP</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c330t-c50e3a476a6826bd51a40b8186b8436fe1ed55233a70ff9c30d702876f700d843</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>ALKALINE EARTH ISOTOPES</topic><topic>ALUMINIUM 26</topic><topic>ALUMINIUM 28</topic><topic>ALUMINIUM ISOTOPES</topic><topic>BARYON REACTIONS</topic><topic>BETA DECAY RADIOISOTOPES</topic><topic>BETA-MINUS DECAY RADIOISOTOPES</topic><topic>BETA-PLUS DECAY RADIOISOTOPES</topic><topic>BORON 11 TARGET</topic><topic>CARBON 12</topic><topic>CARBON 12 TARGET</topic><topic>CARBON 13 REACTIONS</topic><topic>CARBON 13 TARGET</topic><topic>CARBON ISOTOPES</topic><topic>CHARGED-PARTICLE REACTIONS</topic><topic>COMPOUND NUCLEI</topic><topic>CROSS SECTIONS</topic><topic>DECAY</topic><topic>ENERGY LEVELS</topic><topic>ENERGY RANGE</topic><topic>EVEN-EVEN NUCLEI</topic><topic>EXCITED STATES</topic><topic>GIANT RESONANCE</topic><topic>HADRON REACTIONS</topic><topic>HEAVY ION REACTIONS</topic><topic>ISOSPIN</topic><topic>ISOTOPES</topic><topic>LIGHT NUCLEI</topic><topic>MAGNESIUM 26</topic><topic>MAGNESIUM ISOTOPES</topic><topic>MEV RANGE</topic><topic>MEV RANGE 10-100</topic><topic>MEV RANGE 100-1000</topic><topic>MINUTES LIVING RADIOISOTOPES</topic><topic>MIXING</topic><topic>NITROGEN 14 REACTIONS</topic><topic>NITROGEN 15 REACTIONS</topic><topic>NUCLEAR PHYSICS AND RADIATION PHYSICS</topic><topic>NUCLEAR REACTIONS</topic><topic>NUCLEI</topic><topic>NUCLEON REACTIONS</topic><topic>ODD-ODD NUCLEI</topic><topic>OXYGEN 16 REACTIONS</topic><topic>OXYGEN 18 REACTIONS</topic><topic>PARTICLE DECAY</topic><topic>PARTICLE PROPERTIES</topic><topic>PROTON REACTIONS</topic><topic>RADIATIVE DECAY</topic><topic>RADIOISOTOPES</topic><topic>RESONANCE</topic><topic>SECONDS LIVING RADIOISOTOPES</topic><topic>SILICON 28</topic><topic>SILICON 30</topic><topic>SILICON ISOTOPES</topic><topic>STABLE ISOTOPES</topic><topic>SYMMETRY BREAKING</topic><topic>TARGETS</topic><topic>YEARS LIVING RADIOISOTOPES 663300 -- Nuclear Reactions &amp; Scattering, General-- (1992-)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Behr, JA</creatorcontrib><creatorcontrib>Snover, KA</creatorcontrib><creatorcontrib>Gossett, CA</creatorcontrib><creatorcontrib>Kicinska-Habior, M</creatorcontrib><creatorcontrib>Gundlach, JH</creatorcontrib><creatorcontrib>Drebi, ZM</creatorcontrib><creatorcontrib>Kaplan, MS</creatorcontrib><creatorcontrib>Wells, DP</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Behr, JA</au><au>Snover, KA</au><au>Gossett, CA</au><au>Kicinska-Habior, M</au><au>Gundlach, JH</au><au>Drebi, ZM</au><au>Kaplan, MS</au><au>Wells, DP</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Restoration of isospin symmetry in highly excited compound nuclei</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>1993-05-24</date><risdate>1993</risdate><volume>70</volume><issue>21</issue><spage>3201</spage><epage>3204</epage><pages>3201-3204</pages><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>We have deduced compound nuclear isospin mixing in [sup 28]Si[sup *] and [sup 26]Al[sup *] at excitation energies between 33 and 65 MeV. The [gamma]-ray yield from the decay of giant dipole resonances built on excited states is found to be suppressed, implying that isospin mixing is small. By comparison with data from the literature at lower excitation energy, we conclude that isospin is a better symmetry in these compound nuclei at high excitation energy.</abstract><cop>United States</cop><pmid>10053808</pmid><doi>10.1103/PhysRevLett.70.3201</doi><tpages>4</tpages></addata></record>
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identifier ISSN: 0031-9007
ispartof Physical review letters, 1993-05, Vol.70 (21), p.3201-3204
issn 0031-9007
1079-7114
language eng
recordid cdi_osti_scitechconnect_6770844
source American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)
subjects ALKALINE EARTH ISOTOPES
ALUMINIUM 26
ALUMINIUM 28
ALUMINIUM ISOTOPES
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BORON 11 TARGET
CARBON 12
CARBON 12 TARGET
CARBON 13 REACTIONS
CARBON 13 TARGET
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
CROSS SECTIONS
DECAY
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXCITED STATES
GIANT RESONANCE
HADRON REACTIONS
HEAVY ION REACTIONS
ISOSPIN
ISOTOPES
LIGHT NUCLEI
MAGNESIUM 26
MAGNESIUM ISOTOPES
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
MIXING
NITROGEN 14 REACTIONS
NITROGEN 15 REACTIONS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-ODD NUCLEI
OXYGEN 16 REACTIONS
OXYGEN 18 REACTIONS
PARTICLE DECAY
PARTICLE PROPERTIES
PROTON REACTIONS
RADIATIVE DECAY
RADIOISOTOPES
RESONANCE
SECONDS LIVING RADIOISOTOPES
SILICON 28
SILICON 30
SILICON ISOTOPES
STABLE ISOTOPES
SYMMETRY BREAKING
TARGETS
YEARS LIVING RADIOISOTOPES 663300 -- Nuclear Reactions & Scattering, General-- (1992-)
title Restoration of isospin symmetry in highly excited compound nuclei
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