Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Three-body calculations of triple-alpha reaction   Recently, the triple-\alpha (3\alpha) process, by which three 4He nuclei are
fused into a 12C nucleus in stars, was studied by different methods in solving
the quantum mechanical three-body problem. Their results of the thermonuclear
reaction rate for the process differ by several orders at low stellar
temperatures of 10^7 - 10^8 K. In this paper, we will present calculations of
the 3\alpha process by a modified Faddeev three-body formalism in which the
long-range effects of Coulomb interactions are accommodated. The reaction rate
of the process is calculated via an inverse process, three-alpha (3-\alpha)
photodisintegration of a 12C nucleus. Calculated reaction rate is about 10
times larger than that of the Nuclear Astrophysics Compilation of Reaction
Rates (NACRE) at 10^7 K, and is remarkably smaller than the results of the
recent three-body calculations. We will discuss a possible reason of the
difference.

17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin