Measurement of polarization transfer κ0 and tensor analyzing power T20 in the backward elastic dp scattering

Reaction mechanism and characteristics ofT20ind+3HeTanifuji1, Ishikawa2, Iseri3 et al. 1999Phys. Rev. C5010View full textAdd to dashboardCite

“…1(a)) [2] has been fundamentally successful in explaining energy dependence of observables. For example, the neutron-transfer mechanism produces the overall agreement to the experimental cross section σ of the scattering up to GeVenergy region when the empirical momentum distribution of the deuteron is employed in the relativistic framework [7] and the simple PWIA calculation by the mechanism describes qualitative features of the measured tensor analyzing power T 20 and polarization transfer coefficient K y y (d→p) at few hundreds MeV [5,9]. Further, the measured σ and T 20 of the scattering have broad resonance-like structures around E d = 1 GeV in the plot against the incident energy [5,9], which have been interpreted as the signal of excitations of the transferred neutron to ∆-states ( Fig.…”

“…For the last few decades, elastic scattering of deuterons by protons at the backward angle at intermediate energies has intensively been studied as an important source of information of nuclear interactions and reaction dynamics, by including non-nucleonic degrees of freedom in the consideration [1,2,3,4,5,6,7,8,9,10]. Since 3 He has the same spin as the proton's, the spin structure of the scattering amplitude of the d+ 3 He (d 3 He) system is similar to that of the d+p (dp) one when 3 He is considered as a single body [11].…”

Investigation of reactions using polarized and unpolarized deuteron beam at Nuclotron: current status and perspectives

“…In the one-nucleon exchange (ONE), the expression for C // is proportional to the D-state fraction in deuteron T 20 and κ 0 for dp backward elastic scattering which include S-and D-state interference term together with a squared D contribution. Thus expected that C // may be a candidate to provide an information on the deuteron structure complementary to those from T 20 and κ 0 obtained in dp-backward elastic scattering [38].…”

“…The goal of the 3 He(d, p) 4 He reaction study at Nuclotron is to understand the reasons of strange structure in the behaviour of the tensor analyzing power T 20 in dp-backward elastic scattering [38,39] 4 He reaction may be a unique probe to the D-state admixture in deuteron [40] due to the strong spin-selectivity in neutron capture process by 3 He nucleus. In the one-nucleon exchange (ONE), the expression for C // is proportional to the D-state fraction in deuteron T 20 and κ 0 for dp backward elastic scattering which include S-and D-state interference term together with a squared D contribution.…”

“…The polarization observables in the p(d, p)d [38,39] and d(d, p)t [41][42][43] reactions in the collinear geometry can be measured using liquid hydrogen or deuterium target or CH 2 and CD 2 solid targets with Carbon background subtraction. The solid nuclear target can be placed inside the pole of the 3SP40 magnet.…”