Decay of low-lying 12C resonances within a 3alpha cluster model

Details Decay of low-lying 12C resonances within a 3alpha cluster model Decay of low-lying 12C resonances within a 3alpha cluster model

2007-10-31

arxiv.org/abs/0710.5829v1

J.Phys.Conf.Ser.111:012017,2008

Physics

Nuclear Physics

Nuclear Theory

5 pages, 3 figures. Proceedings of the Clusters '07 conference held in Stratford-upon-Avon in September 2007

Scientific paper

10.1088/1742-6596/111/1/012017

We compute energy distributions of three $\alpha$-particles emerging from the decay of $^{12}$C resonances by means of the hyperspherical adiabatic expansion method combined with complex scaling. The large distance continuum properties of the wave functions are crucial and must be accurately calculated. The substantial changes from small to large distances determine the decay mechanisms. We illustrate by computing the energy distributions from decays of the $1^{+}$ and $3^-$-resonances in $^{12}$C. These states are dominated by direct and sequential decays into the three-body continuum respectively.

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