Measurement of the vector and tensor analyzing powers for dp- elastic scattering at 880 MeV

TL;DR

This paper reports measurements of vector and tensor analyzing powers in deuteron-proton elastic scattering at 880 MeV, revealing discrepancies with theoretical models that suggest the need for additional mechanisms beyond nucleon-nucleon forces.

Contribution

First measurement of analyzing powers at this energy and angular range, highlighting the limitations of current nucleon-nucleon force models.

Findings

Measured analyzing powers show discrepancies with theoretical predictions.

Results indicate the necessity to include additional mechanisms in models.

Data covers a wide angular range at 880 MeV.

Abstract

The vector Ay and tensor analyzing powers Ayy and Axx for dp- elastic scattering were measured at Td = 880 MeV over the c.m. angular range from 60 to 140 degrees at the JINR Nuclotron. The data are compared with predictions of different theoretical models based on the use of nucleon-nucleon forces only. The observed discrepancies of the measured analyzing powers from the calculations require the consideration of additional mechanisms.