Tensor effects in6Li→+12C scattering

Abstract

A complete set of analyzing powers (iT», Tzo, Tz, , and Tzz) are reported for the elastic scattering of 50 MeV Li by ' C. They are as large as or larger than those measured earlier for 30 MeV Li. A combined optical model analysis of both energies shows Tz& to arise from the tensor interaction, Tzo to involve a combination of tensor and J-dependent interactions, and iT» to be the most complicated, arising from an explicit spin-orbit, as well as tensor and J-dependent interactions. A coordinate transformation of the data and calculations, suggested in the earlier work of Hooton and Johnson, provides the clearest evidence for the need of a tensor interaction to describe Li scattering. Examining the optical model calculations in terms of transferred angular momentum amplitudes provides further insight into the role played by each interaction. Also presented are the analyzing powers for the "He( Li, He) polarimeter reaction at this higher bombarding energy.PACS number(s): 24.70.+s, 24. 10.Ht, 25.70.Bc, 21.30.+y

Nonresonant breakup effects in→6+58Rusek1, Clarke2, Tungate3 et al. 1995Phys. Rev. C10010View full textAdd to dashboardCite

“…A similar conclusion has also been reported by Kerr et al [28]. The present calculations did not confirm these findings.…”

Cross-section, vector and tensor analyzing powers of the 6Li + 12C elastic scattering at 30 and 50 MeV: a non-monotonic potential description

“…The experimental CS, iT 11 , T 20 , T 21 and T 22 data for the 6 Li + 12 C elastic scattering are taken from [22,23,31]. The CS data are normalized to the Rutherford cross-sections, and a systematic error of 15% is assumed for the CS points without any experimental error-bar.…”

“…The study examines for the first time the NM potential, embodying a repulsive core, on the tensor analyzing powers in the framework of simple OM potential. The T R tensor potential, originally proposed Satchler [24] and tried on the 6 Li + 12 C scattering by Reber et al [22,37] and Kerr et al [23,38], in conjunction with the NM central real, effective SO and imaginary parts of the interaction potential U(R) in equation ( 9), are able to reproduce features in the angular distributions of CS and analyzing power data. In particular, iT 11 , T 21 , T 22 data are well accounted for in OM using normal J-independent imaginary potential.…”

“…The various successes enjoyed by the NM potentials have stimulated us to undertake the present investigation. Reber et al [22] and Kerr et al [23] applied successfully a J-dependent absorption in the framework of OM to describe their experimental data of VAP (iT 11 ) and tensor analyzing powers (TAPs), T 20 , T 21 and T 22 at 30 and 50 MeV after introducing the Thomas spin-orbit SO and complex tensor T R of [24][25][26].…”

Applying Crystal model on different nuclear systems; deuteron, alpha and 6Li as projectiles

“…The previous sections of this research paper were concerned with light-light nuclei whereas this section is connected to light-intermediate nuclei. 6 Li elastically scattered by 12 C has been reanalyzed at energies (36, 50.6, 90, 99, 123.5, 156, 168.6, 210, 318 and 600) [64][65][66][67][68][69][70][71][72][73][74] by two different potentials namely CM+DWBA and CM+DWBA+DPP. The position of 6 Li in the middle between light and heavy nuclei gives it the interest to study.…”