Abstract
It is shown that the ratio of the deuteron and proton analyzing powers in proton-deuteron elastic scattering at small angles is sensitive to subtle effects in a theoretical description. These include the transverse spin-spin term in the elementary nucleon-nucleon amplitudes and double-scattering corrections. On the other hand there is far less sensitivity to the spin-orbit amplitude and to binding or other kinematic effects associated with the use of the deuteron, as either target or projectile. The available data are in agreement with the results of a refined Glauber theory model.
Highlights
It is shown that the ratio of the deuteron and proton analysing powers in proton-deuteron elastic scattering at small angles is sensitive to subtle effects in a theoretical description
At 796 MeV, in addition to the Apy data given in [1], there are measurements from COSY-ANKE [2]. These are complemented by measurements of the deuteron analysing power in dp elastic scattering in the 800 MeV per nucleon region [3, 4, 5]
The error bars are statistical and do not take into account the systematic uncertainties associated with the beam polarisations in the various experiments
Summary
It is shown that the ratio of the deuteron and proton analysing powers in proton-deuteron elastic scattering at small angles is sensitive to subtle effects in a theoretical description. These are complemented by measurements of the deuteron analysing power in dp elastic scattering in the 800 MeV per nucleon region [3, 4, 5].
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