# Resolving the 11B(p, ${\alpha_0}$) Cross Section Discrepancies between 0.5 and 3.5 MeV

## TL;DR

This paper presents new measurements of the 11B(p, α0) reaction cross section to resolve existing discrepancies in previous data, using advanced silicon detectors and low beam current for improved accuracy.

## Contribution

It provides the first precise measurement of the 11B(p, α0) cross section with modern detection technology to address prior inconsistencies.

## Key findings

- Resolved normalization discrepancies in cross-section data
- Achieved more accurate energy scale calibration
- Provided reliable data for applications in nuclear physics

## Abstract

The reaction 11B(p, 3${\alpha}$) is relevant for fields as diverse as material science, nuclear structure, nuclear astrophysics, and fusion science. However, for the channel proceeding via the ground state of 8Be, the available cross-section data shows large discrepancies of both normalization and energy scale. The present paper reports on a measurement of the 11B(p, ${\alpha_0}$) cross section using an array of modern large area segmented silicon detectors and low beam current on an enriched thin target with the aim of resolving the discrepancies amongst previous measurements.