Proton halos in exotic light nuclei

Abstract

The Current Study oil proton halos in exotic light nuclei is reviewed and discussed. We place emphasis oil the newly discovered proton halo in Al-23. A measurement of the reaction cross section of N = 10 isotones and Z = 13 isotopes is performed at Lanzhou in China. An abnormal increase in the reaction cross section is observed for Al-23. This abnormal increase, combined with other data, strongly suggests that there is a proton halo in Al-23. The possible cause for a proton halo ill Al-23 is analyzed, and it is found that deformation can be important for it. Other candidates for proton halos are predicted. (C) 2003 MAIK "Nauka/Interperiodica".