The 13C(p̄, d)12C reaction at 119 MeV

Lewis, P; Shute, G.G.; Spicer, B.M.; Officer, V.C.; Andrews, P. R.; Banks, S.M.

doi:10.1016/0375-9474(87)90628-2

Cited by 8 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…used in the DWBA calculation without the spin-dependent interactions were in reasonable agreement with the values derived from the DWBA analysis of the 13 C(p, d) 12 C reaction [25,26]. However, the present coupled channel calculation predicts that the spectroscopic factor of n+ 12 C[2 + 1 ] relative to that of n+ 12 C[g.s.]…”

Section: Summary and Discussionsupporting

confidence: 82%

Tensor polarization of 12C[2+ 1] in the 16O(13C,12C)17O reaction at 50 MeV

Ikeda

Nakamura

Mizuuchi

et al. 2000

EPJ A

View full text Add to dashboard Cite

The 16 O( 13 C, 12 C) 17 O reaction at 50 MeV has been investigated using the kinematical coincidence method. Polarization tensors t20 and t40 of 12 C[2 + 1 ] for the quantization axis taken along the direction of propagation have been measured by analyzing the energy spectrum of 12 C[2 + 1 ], modulated by the effect of γ ray emission. The deduced t40 values significantly deviate from zero, contrary to the prediction of the distorted-wave Born approximation theory based on one-step p shell neutron stripping without spin-dependent interactions. The phenomenological spin-orbit interaction necessary to reproduce the magnitude of measured t40 is found to be much larger than the folding model prediction. It is shown that the experimental polarization tensors as well as the cross sections can be reproduced by introducing multi-step processes involving excitations in 12 C and 13 C without introducing spin-dependent interactions. PACS. 25.70.Hi Transfer reactions -24.70.+s Polarization phenomena in reactions -24.10.Eq Coupledchannel and distorted-wave models 492 N. Ikeda et al.: Tensor polarization of 12 C[2 + 1 ] in the 16 O( 13 C, 12 C) 17 O reaction at 50 MeV

show abstract

Section: Summary and Discussionsupporting

confidence: 82%

Tensor polarization of 12C[2+ 1] in the 16O(13C,12C)17O reaction at 50 MeV

Ikeda

Nakamura

Mizuuchi

et al. 2000

EPJ A

View full text Add to dashboard Cite

show abstract

“…For the purpose of estimating the (E1) direct-capture capture cross section, we adopt the model of Rolfs [11] which approximates the many-nucleon problem by a twobody problem in which the projectile and target are treated as inert cores and their interaction is described by a squarewell potential with the depth adjusted to reproduce the binding energy of the final state. This simple model was found to yield accurate results for the capture reaction 16 O(p, γ) to the two bound levels in 17 F, which both are well described by a simple, single-particle configurations involving only a single orbital [11].…”

Section: Direct Capturementioning

confidence: 92%

“…It was suggested in Ref. [17] that the 18.16, 2 − and 18.13, 1 + levels might be one and the same level. Indeed, a spin-parity assignment of 2 − appears compatible with the data of Ref.…”

Section: Resonant Capturementioning

confidence: 96%

“…18.16, 2 − . Evidence for the existence of this level also comes from a single study, in this case of (p, d) [17]. There are no constraints on the proton width and the spin-parity and isospin assignments are not conclusive.…”

Section: Resonant Capturementioning

confidence: 99%

“…[16] is preferred, while the level energy and width is taken from Ref. [17]. However, the very different widths reported in the two studies contradict a single-level interpretation.…”

Section: Resonant Capturementioning

confidence: 99%

See 2 more Smart Citations

Experimental study of the $^{11}\text{B}(p,3α)γ$ reaction at $E_p = 0.5-2.7$ MeV

Kirsebom,

Howard,

Munch

et al. 2020

Preprint

View full text Add to dashboard Cite

Our understanding of the low-lying resonance structure in 12 C remains incomplete. We have used the 11 B(p, 3α)γ reaction at proton energies of E p = 0.5-2.7 MeV as a selective probe of the excitation region above the 3α threshold in 12 C. Transitions to individual levels in 12 C were identified by measuring the 3α final state with a compact array of charged-particle detectors. Previously identified transitions to narrow levels were confirmed and new transitions to broader levels were observed for the first time. Here, we report cross sections, deduce partial γ-decay widths and discuss the relative importance of direct and resonant capture mechanisms.

show abstract