Measurement of polarization transfer and the tensor analyzing power in polarized deuteron break-up with deuteron momenta up to 9 GeV/c

Reactions p(d, p)d and p(d, p)pn as a tool for studying the short-range internal structure of the deuteron

“…Recent measurements of tensor analyzing power T 20 for deuteron inclusive breakup at 0 0 performed in Saclay [7] and in Dubna [14,15,16] at different energies and for different targets have shown the strong deviation from the IA predictions at k ≥ 0.2 GeV/c. The behaviour of the polarization transfer coefficient from vector polarized deuteron to proton κ 0 [17,18,19] also disagrees with the calculations using conventional DWFs at k ≥ 0.2 GeV/c. On the other hand, both T 20 and κ 0 data demonstrate a weak dependence on A value of the target, as well as an approximate energy independence, i.e.…”

Measurement of the Tensor Analyzing PowerT20ford↑+Aono1, Chernykh2, Dzikowski3 et al. 1995Phys. Rev. Lett.Self Cite28060View full textAdd to dashboardCite

“…Our data in the high internal momentum region, k ) 0.85 GeV/c, have shown a tendency to approach the QCD motivated asymptotic prediction (T2o [5] and [6], respectively. Open squares are data from [3].…”

“…The first measurements of T20 performed at Dubna by the Alpha group [5] contained rather large errors at k higher than 0.70 GeV/c. Recently, new measurements of T2p have been performed by the Anomalon group at Dubna, with the smaller errors [6]. Tzo up to k = 0.82 GeV/c was found to be still negative and more similar to the QCD prediction [18]than to the calculations with conventional wave functions.…”

Polarization observables in A(d,p) breakup and quark degrees of freedom in the deuteron

“…During last 15 years detailed data on A(d, p) differential cross section (DCS) [1]- [2], tensor analizing power, T 20 [3]- [9], and coefficient of polarization transfer, κ 0 [7], [10]- [12], have been obtained. These data together with data obtained from electromagnetic probe, give important information about the deuteron structure in a wide region, including that of a smooth transition from nucleon-meson to quark-gluon picture.…”