Papka, P., Brown, T.A.D., Fulton, B.R., Watson, D.L., Fox, S.P., Groombridge, D., Freer, M., Clarke, N.M., Ashwood, N.I., Curtis, N., Ziman, V., McEwan, P., Ahmed, S., Catford, W.N., Mahboub, D., Timis, C.N., Baldwin, T.D. and Weisser, D.C. (2007) Decay path measurements for the 2.429 MeV state in 9Be: Implications for the astrophysical a+a+n reaction. Physical Review C, 75 (4). 045803-1-045803-8. ISSN 1089-490X
An experiment was performed at the Australian National University to study the 9Be(6Li,6Li)9Be*++n reaction. This experiment was designed to study the breakup of 9Be, in an attempt to quantify the contribution played by the 5He+ and 8Be2++n channels for the low lying excited states. This information is required in order to resolve uncertainties in the ++n 9Be reaction rate in high-energy and neutron-rich astrophysical environments such as supernovae. Angular correlation measurements have been used to deduce that the 2.429 MeV state breaks up almost exclusively via the 8Be2+ channel. This method of identifying the break-up channel resolves the problem of distinguishing between the 8Be2+ and 5Heg.s. channels which are kinetically identical at this excitation energy.
|Institution:||The University of York|
|Academic Units:||The University of York > Physics (York)|
|Depositing User:||York RAE Import|
|Date Deposited:||26 Feb 2009 15:05|
|Last Modified:||26 Feb 2009 15:05|
|Publisher:||The American Physical Society.|