Excitation of the electric pygmy dipole resonance by inelastic electron scattering⋆
نویسندگان
چکیده
منابع مشابه
Spectral structure of the pygmy dipole resonance.
High-sensitivity studies of E1 and M1 transitions observed in the reaction 138Ba(gamma,gamma{'}) at energies below the one-neutron separation energy have been performed using the nearly monoenergetic and 100% linearly polarized photon beams of the HIgammaS facility. The electric dipole character of the so-called "pygmy" dipole resonance was experimentally verified for excitations from 4.0 to 8....
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The properties of pygmy dipole states in 208Pb were investigated using the 208Pb(17O, 17O'γ) reaction at 340 MeV and measuring the γ decay with high resolution with the AGATA demonstrator array. Cross sections and angular distributions of the emitted γ rays and of the scattered particles were measured. The results are compared with (γ, γ') and (p, p') data. The data analysis with the distorted ...
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High energy g rays from the decay of the giant resonance in hot Sn nuclei were measured in the excitation energy range of 30–130 MeV. The excited nuclei were populated by inelastic scattering of a particles at 40 and 50 MeVynucleon. The resonance width was observed to increase monotonically with increasing excitation energy, from 5 MeV at the ground state to ,12 MeV at the largest excitation en...
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2019
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2019-12784-4