Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Four-Alpha Linear-Chain States in 16O   We study 4$\alpha$ linear-chain states in 16O in comparison with 3$\alpha$
states in 12C by using the Generator Coordinate Method within a microscopic
$N\alpha$-cluster model. It is shown to be very important to solve relative
motion of $\alpha$-clusters by taking into account the orthogonality between
the linear-chain states and other low-lying states including the ground state.
For 12C, the 3$\alpha$ chain state disappears because of this orthogonality.
The $4\alpha$ chain state in 16O, on the other hand, is hardly affected by
low-lying states and persists to remain above the 4$\alpha$ threshold. The
calculated moment of inertia of the $4\alpha$ linear-chain rotational band (88
keV) reproduces the experimentally suggested value qualitatively.

16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph