Naslov
Alpha:2n:alpha Molecular Band in 10Be

Autori
Freer, M. ; Casarejos, E. ; Achouri, L. ; Angulo, C. ; Ashwood, N. I. ; Curtis, N. ; Demaret, P. ; Harlin, C. ; Laurent, B. ; Milin, Matko ; Orr, N. A. ; Price, D. ; Raabe, R. ; Soić, Neven ; Ziman, V. A.

Izvornik
Physical Review Letters (0031-9007) 96 (2006), 4;

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
resonant elastic scattering; alpha-cluster spectroscopic factor; rotational band; molecular structure; 10Be

Sažetak
The 10.15 MeV resonance in 10Be has been probed via resonant 6He+4He elastic scattering. It is demonstrated that it is the Jpi=4+ member of a rotational band built on the 6.18 MeV 0+ state. A Gamma (alpha) of 0.10– 0.13 MeV and Gamma (alpha)/Gamma=0.35– 0.46 were deduced. The corresponding reduced alpha width, gamma (alpha)², indicates one of the largest alpha-cluster spectroscopic factors known. The deformation of the band, including the 7.54 MeV, 2+ member, is large ([h-bar]2/2I=200 keV). Such a deformation and the significant degree of clusterization signals a well-developed alpha:2n:alpha molecular structure.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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