Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Novel technique for constraining r-process (n,$\gamma$) reaction rates   A novel technique has been developed, which will open exciting new
opportunities for studying the very neutron-rich nuclei involved in the
r-process. As a proof-of-principle, the $\gamma$-spectra from the $\beta$-decay
of $^{76}$Ga have been measured with the SuN detector at the National
Superconducting Cyclotron Laboratory. The nuclear level density and
$\gamma$-ray strength function are extracted and used as input to
Hauser-Feshbach calculations. The present technique is shown to strongly
constrain the $^{75}$Ge($n,\gamma$)$^{76}$Ge cross section and reaction rate.

14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin