Deuteron elastic scattering and the (d, p) reaction with a polarized 3 He target

Hardy, D.M.; Baker, Stephen; McSherry, Diana Hartridge; Spiger, R. J.

doi:10.1016/0375-9474(70)90179-x

Cited by 16 publications

(1 citation statement)

References 14 publications

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“…Results are given at lab energies between 3.30 MeV and 6.86 MeV. The data at 71.6 • and 120.0 • are actual experimentally measured values while the data at 87.0 • are extrapolated values from reference [50]. The Boykin A y data however do not include possible systematic uncertainties at all.…”

Section: Datamentioning

confidence: 99%

Effective field theory analysis of ³He–α scattering data

Poudel

Phillips

2022

J. Phys. G: Nucl. Part. Phys.

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We treat low-energy 3He-α elastic scattering in an Effective Field Theory (EFT) that exploits the separation of scales in this reaction. We compute the amplitude up to Next-to-Next-to-Leading Order (NNLO), developing a hierarchy of the effective-range parameters that contribute at various orders. We use the resulting formalism to analyze data for recent measurements at center-of-mass energies of 0.38-3.12 MeV using the SONIK gas target at TRIUMF as well as older data in this energy regime. We employ a likelihood function that incorporates the theoretical uncertainty due to truncation of the EFT and use Markov Chain Monte Carlo sampling to obtain the resulting posterior probability distribution. We find that the inclusion of a small amount of data on the analyzing power A y is crucial to determine the sign of the p-wave splitting in such an analysis. The combination of A y and SONIK data constrains all effective-range parameters up to p 4 in both s- and p-waves quite well. The ANCs and s-wave scattering length are consistent with a recent EFT analysis of the capture reaction 3He(α, γ)7Be.

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Section: Datamentioning

confidence: 99%