"Alpha decays" of Be-10(Lambda) and B-10(Lambda) hypernuclei on a nuclotron: A clue to some puzzles in nonleptonic processes
Result description
Hypemuclei are a convenient laboratory in which to study a baryon-baryon weak interaction and the associated effective lweak Hamiltonian. The strangeness changing process, in which a A hyperon in nuclear matter converts to a neutron with a release of upto 176 MeV, provides a clear signal for the conversion of an s quark to a d quark. It is shown how the nuclear structure aspects of the problem, often an unwelcome detail of calculations attempting to understand a basic two-body AN -> NN interaction, canbe used to pick out the components of the effective weak Hamiltonian. It is well known that removing one neutron from Be-9 results in Be-8* and a subsequent alpha alpha decay. Through this process, it should be possible to identify the final states of aresidual nucleus.
Keywords
nonmesonic weak decayhyperon-nucleon interactionLambda-N-interaction
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
"Alpha decays" of Be-10(Lambda) and B-10(Lambda) hypernuclei on a nuclotron: A clue to some puzzles in nonleptonic processes
Original language description
Hypemuclei are a convenient laboratory in which to study a baryon-baryon weak interaction and the associated effective lweak Hamiltonian. The strangeness changing process, in which a A hyperon in nuclear matter converts to a neutron with a release of upto 176 MeV, provides a clear signal for the conversion of an s quark to a d quark. It is shown how the nuclear structure aspects of the problem, often an unwelcome detail of calculations attempting to understand a basic two-body AN -> NN interaction, canbe used to pick out the components of the effective weak Hamiltonian. It is well known that removing one neutron from Be-9 results in Be-8* and a subsequent alpha alpha decay. Through this process, it should be possible to identify the final states of aresidual nucleus.
Czech name
?Alfa rozpad? hyperjader 10Be a 10B: Klíč k řešení některých záhad
Czech description
Hyperjádra jsou vhodnou laboratoří pro studium neleptonových slabých procesů.
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Result continuities
Project
GA202/02/0930: Electromagnetic production, structure and weak decays of hypernuclei
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics of Particles and Nuclei
ISSN
1063-7796
e-ISSN
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Volume of the periodical
36
Issue of the periodical within the volume
2
Country of publishing house
RU - RUSSIAN FEDERATION
Number of pages
22
Pages from-to
169-190
UT code for WoS article
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EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BE - Theoretical physics
Year of implementation
2005