Searching for 4$\alpha$ linearchain structure in excited states of $^{16}$O with a covariant density functional theory
Abstract
A study of 4$\alpha$ linearchain structure in highlying collective excitation states of $^{16}$O with a covariant density functional theory is presented. The lowspin states are obtained by configuration mixing of particlenumber and angularmomentum projected quadrupole deformed meanfield states with generator coordinate method. The highspin states are determined by cranking calculations. These two calculations are based on the same energy density functional PCPK1. We have found a rotational band at lowspin with the dominated intrinsic configuration considered to be the one that 4$\alpha$ clusters stay along a common axis. The strongly deformed rod shape also appears in the highspin region with the angular momentum $1318\hbar$; however whether the state is pure $4\alpha$ linear chain or not is less obvious than that in the lowspin states.
 Publication:

arXiv eprints
 Pub Date:
 March 2014
 arXiv:
 arXiv:1403.7940
 Bibcode:
 2014arXiv1403.7940Y
 Keywords:

 Nuclear Theory;
 Nuclear Experiment
 EPrint:
 10 pages with 11 figures and 3 tables