Analyzing powers Ayy, Axx, Axz and Ay in the dd->3Hen reaction at 270 MeV

TL;DR

This paper presents measurements of tensor and vector analyzing powers in the dd->3Hen reaction at 270 MeV, revealing sensitivity to the 3He wave function components and highlighting discrepancies with theoretical models.

Contribution

It provides new experimental data on analyzing powers in the dd->3Hen reaction and shows that standard 3He wave functions do not fully explain the observed angular dependence.

Findings

Negative tensor analyzing powers at small angles indicate sensitivity to 3He wave function components.

Standard one-nucleon exchange models fail to reproduce the observed angular variation.

Data suggests need for improved theoretical descriptions of the 3He structure.

Abstract

The data on the tensor Ayy, Axx, Axz and vector Ay analyzing powers in the dd->3Hen obtained at Td= 270 MeV in the angular range 0 - 110 degrees in the c.m. are presented. The observed negative sign of the tensor analyzing powers Ayy, Axx and Axz at small angles clearly demonstrate the sensitivity to the ratio of the D and S wave component of the 3He wave function. However, the one-nucleon exchange calculations by using the standard 3He wave functions have failed to reproduce the strong variation of the tensor analyzing powers as a function of the angle in the c.m.