Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scaling laws, transient times and shell effects in helium induced
  nuclear fission   Fission excitation functions of He-3 and He-4 induced compound nuclei are
shown to scale exactly according to the Bohr-Wheeler transition state
prediction once the shell effects are accounted for. The presented method
furthermore allows one to model-independently extract values for the shell
effects which are in good agreement to those obtained from liquid-drop model
calculations. The fact that no deviations from the transition state method have
been observed within the experimentally investigated excitation energy regime
allows one to assign an upper limit for the transient time of 10 zs.

8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin