Dipole excitation of alpha clusters in (6)Li and (7)Li

Dipole excitation of alpha clusters in (6)Li and (7)Li

Dipole excitations in highly excited energy regions of (6)He and (7)He nuclei were investigated via the ((7)Li,(7)Be) reaction with an incident energy of 65A MeV at forward scattering angles. The resonances at Q approximately equal to -30 MeV observed commonly for both (6)Li and (7)Li targets were f...

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Veröffentlicht in:Physical review letters 2001-09, Vol.87 (12), p.122502-122502
Hauptverfasser: Nakayama, S, Yamagata, T, Akimune, H, Daito, I, Fujimura, H, Fujita, Y, Fujiwara, M, Fushimi, K, Greenfield, M B, Kohri, H, Koori, N, Takahisa, K, Tamii, A, Tanaka, M, Toyokawa, H
Format: Artikel
Sprache:eng
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Zusammenfassung:Dipole excitations in highly excited energy regions of (6)He and (7)He nuclei were investigated via the ((7)Li,(7)Be) reaction with an incident energy of 65A MeV at forward scattering angles. The resonances at Q approximately equal to -30 MeV observed commonly for both (6)Li and (7)Li targets were found to be excited via both spin-flip and spin-nonflip transitions with DeltaL = 1. Based on the observed excitation energy, width, and cross section of each resonance, the relevant resonances are inferred to be analogs of the dipole resonances of alpha clusters in the (6)Li and (7)Li nuclei.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.87.122502