Updated evidences of the Trojan Horse particle invariance for $^2$H(d,p)$^3$H reaction

TL;DR

This study tests the invariance of the Trojan Horse method for the d(d,p)t reaction using different break-up schemes, confirming the method's robustness and nucleus independence in extracting astrophysical S-factors.

Contribution

It demonstrates the invariance of the Trojan Horse method across different break-up schemes for the d(d,p)t reaction, validating the approach's nucleus independence.

Findings

Good agreement with direct data and previous studies

Supports the applicability of the Plane Wave Approximation

Confirms nucleus invariance in the Trojan Horse method

Abstract

The Trojan Horse nucleus invariance for the binary d(d,p)t reaction was tested using the quasi free $^2$H($^6$Li, pt)$^4$He and $^2$H($^3$He,pt)H reactions after $^6$Li and $^3$He break-up, respectively. The astrophysical S(E)-factor for the d(d,p)t binary process was then extracted in the framework of the Plane Wave Approximation applied to the two different break-up schemes. The obtained results are compared with direct data as well as with previous indirect investigations. The very good agreement confirms the applicability of the Plane Wave Approximation and suggests the independence of binary indirect cross section on the chosen Trojan Horse nucleus also for the present case.