Exotic molecular states in Be-12

Authors
Freer, M Angelique, JC Axelsson, L Benoit, B Bergmann, U Catford, WN Chappell, SPG Clarke, NM Curtis, N D'Arrigo, A Brennard, ED Dorvaux, O Fulton, BR Giardina, G Gregori, C Grevy, S Hanappe, F Kelly, G Labiche, M Le Brun, C Leenhardt, S Lewitowicz, M Markenroth, K Marques, FM Motta, M Murgatroyd, JT Nilsson, T Ninane, A Orr, NA Piqueras, I Saint Laurent, MG Singer, SM Sorlin, O Stuttge, L Watson, DL
Citation
M. Freer et al., Exotic molecular states in Be-12, PHYS REV L, 82(7), 1999, pp. 1383-1386
Citations number
12
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
7
Year of publication
1999
Pages
1383 - 1386
Database
ISI
SICI code
0031-9007(19990215)82:7<1383:EMSIB>2.0.ZU;2-B
Abstract
The breakup of Be-12 into He-6 + He-6 and He-4 + He-8 has been studied usin g a 378 MeV Be-12 beam inelastically excited by C-12 and (CH2)(n) targets. The measurements indicate that breakup occurs from rotational states in the 10 to 25 MeV excitation energy interval, with spins in the range of 4(h) o ver bar to 8(h) over bar. The inferred moment of inertia is consistent with the cluster decay of an exotic molecular structure in Be-12, which may be associated with an alpha-4n-alpha cluster configuration. [S0031-9007(99)084 51-3].