The analyzing power Ay[(θ) for 12C(n, n0,1)12C between 8.9 and] 14.9 MeV neutron energy

Woye, E.; Tornow, W.; Mack, G.; Floyd, Carey E.; Guss, Paul; Murphy, K.; Byrd, R.C.; Wender, S.A.; Walter, R.L.; Clegg, T.B.; Wylie, W.R.

doi:10.1016/0375-9474(83)90167-7

Cited by 28 publications

(2 citation statements)

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“…Although we did not include the polarization data in the fitting procedure, our model makes reasonable theoretical predictions for the analyzing power A y (θ) as can be seen in Figure 4. At the energies of 11.9 and 13.9 MeV the experimental results are given in reference [35] and at14.2 MeV they are given by [36]. Since the evaluated nuclear data file did not have angular distributions data of A y (θ) at the aforementioned elastic scattering energies, we calculated the predicted polarization asymmetry corresponding to 11.9 MeV using our fit parameter values for the elastic angular distribution obtained at 12 MeV.…”

Section: Velocity-dependent Optical Potential Fitsmentioning

confidence: 99%

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Novel source of nonlocality in the optical model

2011

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In this work we fit neutron -12 C elastic scattering angular distributions in the energy range 12 to 20 MeV, by adding a velocity dependent term to the optical potential. This term introduces a wave function gradient, whose coefficient is real and position dependent, and which represents a nonlocality. We pay special attention to the prominent backscattering minima which depend sensitively on the incident energies, and which are a tell-tale of nonlocalities. Reasonable fits to the analyzing power data are also obtained as a by-product. All our potentials have the form of conventional Woods -Saxon shapes or their derivatives. The number of our parameters (12) is smaller than the number for other local optical potentials, and they vary monotically with energy, while the strengths of the real and imaginary parts of the central potential are nearly constants. Our nonlocality is in contrast to other forms of nonlocalities introduced previously.

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Section: Velocity-dependent Optical Potential Fitsmentioning

confidence: 99%

“…The experimental data for 11.9 (a) and 13.9 (b) MeV energies are taken from Ref. [35] while for the 14.2 MeV (c) the data is taken from Ref. [36].…”

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confidence: 99%