Trinucleon photo-reactions with Delta-isobar excitation: Radiative nucleon-deuteron capture and two-body photo-disintegration of the three-nucleon state.
Result description
Radiative nucleon-deuteron capture and photo-disintegration of the three-nucleon bound state with two-body final states are described. The description uses nucleon degrees of freedom extended to include the excitation of a single nucleon to a Delta-isobar. The baryonic interaction and the electromagnetic current couple nucleonic states with a Delta-isobar. Exact solutions of three-particle scattering eqations are employed for the initial or final states of the reactions. The current has one-baryon and two-baryon contributions in all considered multipoles. The role of the Delta-isobar in the description of the considered photo-reactions is discused and found to be moderate. The spin observables A(yy) and T-20 at 90degrees lab scattering angle can be calculated model-independently from the E1 Siegert term in the long-wavelength limit.
Keywords
electromagnetic form-factorsmeson-exchange currents3-nucleon forcescatteringHE-3
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
Trinucleon photo-reactions with Delta-isobar excitation: Radiative nucleon-deuteron capture and two-body photo-disintegration of the three-nucleon state.
Original language description
Radiative nucleon-deuteron capture and photo-disintegration of the three-nucleon bound state with two-body final states are described. The description uses nucleon degrees of freedom extended to include the excitation of a single nucleon to a Delta-isobar. The baryonic interaction and the electromagnetic current couple nucleonic states with a Delta-isobar. Exact solutions of three-particle scattering eqations are employed for the initial or final states of the reactions. The current has one-baryon and two-baryon contributions in all considered multipoles. The role of the Delta-isobar in the description of the considered photo-reactions is discused and found to be moderate. The spin observables A(yy) and T-20 at 90degrees lab scattering angle can be calculated model-independently from the E1 Siegert term in the long-wavelength limit.
Czech name
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Czech description
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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
KSK2067107: Applied physics as a basis of technical sciences
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Few-Body Systems
ISSN
0177-7963
e-ISSN
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Volume of the periodical
32
Issue of the periodical within the volume
1/2
Country of publishing house
AT - AUSTRIA
Number of pages
35
Pages from-to
83-117
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
2002