First observation of the splittings of the E1 p-wave amplitudes in low energy deuteron photodisintegration and its implications for the Gerasimov-Drell-Hearn Sum Rule integrand

Angular distributions of the cross section and linear analyzing powers have been measured for the d({gamma}-vector,n)p reaction at the High Intensity {gamma}-ray Source with linearly polarized beams of 14 and 16 MeV. The outgoing neutrons were detected using the Blowfish detector array, consisting o...

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Bibliographic Details
Published in:Physical review. C, Nuclear physics Nuclear physics, 2008-09, Vol.78 (3)
Main Authors: Blackston, M. A., Ahmed, M. A., Perdue, B. A., Weller, H. R., Bewer, B., Pywell, R. E., Wurtz, W. A., Igarashi, R., Kucuker, S., Norum, B., Wang, K., Li, J., Mikhailov, S. F., Popov, V. G., Wu, Y. K., Sawatzky, B. D., Physics Department, University of Saskatchewan, Canadian Light Source, Physics Department, University of Virginia, Duke Free Electron Laser Laboratory, Physics Department, Duke University, Temple University, Thomas Jefferson National Accelerator Facility
Format: Article
Language:English
Subjects:
ANGULAR DISTRIBUTION
CROSS SECTIONS
DEUTERIUM TARGET
DEUTERONS
GAMMA RADIATION
GAMMA SOURCES
LIQUID SCINTILLATORS
MATRIX ELEMENTS
MEV RANGE 10-100
NEUTRONS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR REACTIONS
P WAVES
PHOTONUCLEAR REACTIONS
POLARIZATION-ASYMMETRY RATIO
POLARIZED BEAMS
PROTONS
SOLIDS
SUM RULES
TRIPLETS
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Summary:Angular distributions of the cross section and linear analyzing powers have been measured for the d({gamma}-vector,n)p reaction at the High Intensity {gamma}-ray Source with linearly polarized beams of 14 and 16 MeV. The outgoing neutrons were detected using the Blowfish detector array, consisting of 88 liquid scintillator detectors with large solid angle coverage. The amplitudes of the reduced transition matrix elements were extracted by means of fits to the data and good agreement was found with a recent potential model calculation of the splittings of the triplet p-wave amplitudes. The extracted amplitudes are used to reconstruct the Gerasimov-Drell-Hearn sum rule integrand for the deuteron and are compared to theory.
ISSN:0556-2813
1089-490X
DOI:10.1103/PHYSREVC.78.034003