Photodisintegration cross section of the reaction4He(γ,n)3He at the giant dipole resonance peak

2012 ◽  
Vol 85 (6) ◽  
Author(s):  
W. Tornow ◽  
J. H. Kelley ◽  
R. Raut ◽  
G. Rusev ◽  
A. P. Tonchev ◽  
...  
Keyword(s):  
Cross Section ◽  
Giant Dipole Resonance ◽  
Resonance Peak ◽  
Dipole Resonance

The 11B(d,γ0)13C reaction in the region of the giant dipole resonance

1981 ◽  
Vol 59 (6) ◽  
pp. 781-783 ◽  
Author(s):  
G. Kajrys ◽  
W. Del Bianco ◽  
J. Kim ◽  
S. Landsberger ◽  
R. Lecomte ◽  
...  
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Giant Dipole Resonance ◽  
Yield Curve ◽  
Plastic Scintillator ◽  
Resonant Structure ◽  
Crystal Spectrometer ◽  
Dipole Resonance ◽  
Γ Rays

The 90° differential cross section of the 11B(d,γ0)13C reaction has been measured at deuteron energies from 1.95 to 12.0 MeV in steps varying from 100 to 200 keV. The γ-rays have been detected by a 23 cm long × 23 cm diameter NaI(Tl) crystal spectrometer enclosed in a plastic scintillator anticoincidence shield. The yield curve shows a resonant structure at the energies Eexe = 20.4 ± 0.1 and 22.0 ± 0.2 MeV.

scholarly journals Constraining the in-medium nucleon-nucleon cross section from the width of nuclear giant dipole resonance

2020 ◽  
Vol 807 ◽  
pp. 135532 ◽  
Author(s):  
Rui Wang ◽  
Zhen Zhang ◽  
Lie-Wen Chen ◽  
Che Ming Ko ◽  
Yu-Gang Ma
Keyword(s):  
Cross Section ◽  
Giant Dipole Resonance ◽  
Nucleon Nucleon ◽  
Dipole Resonance

Giant dipole resonance in 4He

1980 ◽  
Vol 58 (11) ◽  
pp. 1555-1559 ◽  
Author(s):  
J. J. Bevelacqua
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Giant Dipole Resonance ◽  
Reasonable Agreement ◽  
Center Of Mass ◽  
Nucleon Nucleon ◽  
Nucleon Interaction ◽  
R Matrix ◽  
Dipole Resonance ◽  
Nucleon Nucleon Interaction

The 4He giant dipole resonance is calculated with the generalized R-matrix method of Lane and Robson. The model treats the center of mass correctly and includes noncentral components in the nucleon–nucleon interaction via the Sussex interaction. The 4He(γ,p)3H and 4He(γ,n)3He cross sections are sensitive to the 4He level spectrum, but are in reasonable agreement with the photonuclear data for level schemes which agree with the spectrum suggested by Fiarman and Meyerhof (FM). Other spectra which bracket the FM levels lead to poorer photonuclear cross sections. R-matrix model results also lead to a (γ,p)/(γ,n) cross section ratio which is about unity.

Photoproton cross section for 26Mg in the giant dipole resonance region

1974 ◽  
Vol 222 (3) ◽  
pp. 548-556 ◽  
Author(s):  
V.V. Varlamov ◽  
B.S. Ishkhanov ◽  
I.M. Kapitonov ◽  
I.M. Piskarev ◽  
V.G. Shevchenko ◽  
...  
Keyword(s):  
Cross Section ◽  
Giant Dipole Resonance ◽  
Resonance Region ◽  
Dipole Resonance ◽  
Giant Dipole Resonance Region

Absolute(γ12,p0)11B cross section and angular distributions in the giant dipole resonance region

1986 ◽  
Vol 33 (5) ◽  
pp. 1796-1798 ◽  
Author(s):  
E. Kerkhove ◽  
P. Berkvens ◽  
R. Van de Vyver ◽  
D. Ryckbosch ◽  
P. Van Otten ◽  
...  
Keyword(s):  
Cross Section ◽  
Giant Dipole Resonance ◽  
Resonance Region ◽  
Angular Distributions ◽  
Dipole Resonance ◽  
Giant Dipole Resonance Region

scholarly journals Particle?Hole Description of Dipole States in17O

1986 ◽  
Vol 39 (6) ◽  
pp. 871 ◽  
Author(s):  
JA Eden ◽  
YI Assafiri
Keyword(s):  
Cross Section ◽  
Electric Dipole ◽  
Giant Dipole Resonance ◽  
Residual Interaction ◽  
Dipole Resonance ◽  
Hole Model

The particle-hole model has been applied to the 170 nucleus to study the electric dipole states below the giant dipole resonance (GDR). Comparison is made with the most recent photonuclear data for this nucleus and an E 1 assignment for the observed strength at 15� 1 Me V in the photoproton cross section is discussed. The WMBH residual interaction used in this calculation produces more T> strength below the GDR than predicted in other calculations using the Tabakin, Soper or Kuo-Brown interactions.

Sign in / Sign up

Export Citation Format

Share Document