# Direct capture cross section of $^{9}$Be(n,$\gamma$)$^{10}$Be

## TL;DR

This paper calculates the neutron capture cross section of beryllium-9 to beryllium-10 using a direct capture model, aligning well with recent experimental data and covering energies relevant to astrophysics.

## Contribution

The study provides a detailed direct capture calculation of the $^{9}$Be(n,$$)^{10}$Be cross section, adjusted to system properties and validated against experimental data.

## Key findings

- Cross section exhibits $1/v$ behavior at low energies.
- Cross section increases with energy, indicating $p$-wave capture.
- Excellent agreement with recent experimental data.

## Abstract

The cross section of the $^{9}$Be(n,$\gamma$)$^{10}$Be reaction was calculated in the direct capture model. All parameters of the calculations were adjusted to properties of the $^{9}$Be + n system at thermal energies. The calculated cross section at thermonuclear energies shows the expected $1/v$ behavior of $s$-wave capture at low energies, but increases towards higher energies as typical $p$-wave capture. Excellent agreement between new experimental data in the astrophysically relevant energy region and the present calculation is found.