TY - JOUR
T1 - Neutron angular distribution in (γ, n) reactions with linearly polarized γ-ray beam generated by laser Compton scattering
AU - Horikawa, K.
AU - Miyamoto, S.
AU - Mochizuki, T.
AU - Amano, S.
AU - Li, D.
AU - Imasaki, K.
AU - Izawa, Y.
AU - Ogata, K.
AU - Chiba, S.
AU - Hayakawa, T.
N1 - Funding Information:
This work has been supported in part by Grants-in-Aid for Scientific Research ( 25610061 , 24340060 , 22740169 , 23654204 ) of the Japan Society for the Promotion of Science .
PY - 2014/10/7
Y1 - 2014/10/7
N2 - In 1957, Agodi predicted that the neutron angular distribution in (γ, n) reactions with a 100% linearly polarized γ-ray beam for dipole excitation should be anisotropic and universally described by the simple function of a + b {dot operator} cos (2φ) at the polar angle θ = 90°, where φ is the azimuthal angle. However, this prediction has not been experimentally confirmed in over half a century. We have verified experimentally this angular distribution in the (γ, n) reaction for 197Au, 127I, and natural Cu targets using linearly polarized laser Compton scattering γ-rays. The result suggests that the (γ→, n) reaction is a novel tool to study nuclear physics in the giant dipole resonance region.
AB - In 1957, Agodi predicted that the neutron angular distribution in (γ, n) reactions with a 100% linearly polarized γ-ray beam for dipole excitation should be anisotropic and universally described by the simple function of a + b {dot operator} cos (2φ) at the polar angle θ = 90°, where φ is the azimuthal angle. However, this prediction has not been experimentally confirmed in over half a century. We have verified experimentally this angular distribution in the (γ, n) reaction for 197Au, 127I, and natural Cu targets using linearly polarized laser Compton scattering γ-rays. The result suggests that the (γ→, n) reaction is a novel tool to study nuclear physics in the giant dipole resonance region.
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U2 - 10.1016/j.physletb.2014.08.024
DO - 10.1016/j.physletb.2014.08.024
M3 - Article
AN - SCOPUS:84906688355
SN - 0370-2693
VL - 737
SP - 109
EP - 113
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -