Describing one- and two-neutron halos in effective field theory

作者：Phillips Daniel R^*

来源：Pramana - Journal of Physics, 2014, 83(5): 661-671.

DOI：10.1007/s12043-014-0862-y

• Halo nuclei
• effective field theory
• radiative capture
• Coulomb dissociation

In this paper, the recent work our group has undertaken on effective field theory (EFT) analyses of experimental data pertaining to one- and two-neutron halo nuclei is discussed. The cases of C-19 and Li-8 (one-neutron halos) and C-22 (two-neutron halo) are considered. For C-19 and Li-8 electromagnetic processes, such as Coulomb dissociation and radiative capture are considered. In the C-22 system the way in which the measured matter radius can be used to derive constraints on the two-neutron separation energy of this very neutron-rich system is shown. In each case the %26apos;Halo EFT%26apos; ability to correlate different experimental observables with one another, in a model-independent manner, and up to an accuracy that is determined by the separation of scales in the halo system is shown.

• 出版日期2014-11