Theory of hadron-deuteron elastic scattering in the GeV region

Forwardp¯delastic scattering and total spin-dependentp¯dUzikov1, Haidenbauer2 2009Phys. Rev. C228421View full textAdd to dashboardCite

“…In principle, the double-scattering corrections to the spin-dependent cross sections could be worked out by adopting the formalism described in Refs. [25,26,53]. But we expect that the doublescattering effects on those quantities are roughly of the same [25].…”

“…Therefore, we do not consider the double-scattering effects on the spin-dependent cross sections in the present investigation, which anyway has an exploratory character. Note that an accurate evaluation of the contribution of double-scattering effects to polarized cross sections requires to consider the D-wave component of the deuteron as well as the angular dependence of all (ten)pN helicity amplitudes [26] and is therefore rather tedious.…”

Erratum: Refined Glauber model versus Faddeev calculations and experimental data for pd spin observables [Phys. Rev. C 81 , 014004 (2010)]

“…In preceding years, some papers have been published that considered the following contributions separately: (i) spin dependence of NN amplitudes [14,15], (ii) D wave of the deuteron [16,17], (iii) isospin dependence of NN amplitudes, i.e., double charge-exchange contribution to pd elastic scattering [18,19]. All these items were included later in the so-called relativistic multiple-scattering theory [5,6] which went beyond the Glauber framework by accounting for corrections to the eikonal and fixed-scatterer approximations and some relativistic effects as well. It is well known, at least qualitatively, that different corrections to the Glauber model tend to cancel each other substantially [7], so it is hard to improve the Glauber model essentially.…”

“…On the other hand, the charge-exchange process which is responsible for the rising of np helicity amplitudes at large angles can contribute to pd elastic scattering already at rather forward angles through the double charge exchange, and thus, the latter mechanism is included to our formalism explicitly. 5 In explicit calculations we explored two different relations (and two sets of parameters C, A) for each helicity amplitude, i.e., one for its real part and one for the imaginary part. Here just the general forms which fit both real and imaginary parts of the amplitudes are given for simplicity.…”

“…The last (in time) substantial steps taken in this direction can be found in Refs. [3][4][5][6]. However, the comprehensive analysis of various corrections to the Glauber model has revealed [7] that many important corrections to the initial model seems tend to compensate strongly each other, so that an incorporation of only one of them can even worsen the results of the initial simple model.…”