Differential cross sections and analyzing powers for pd elastic scattering below 1.0 MeV

Huttel, E.; Arnold, W.; Berg, Hermann; Krause, Helmut; Ulbricht, J.; Clausnitzer, G.

doi:10.1016/0375-9474(83)90368-8

Cited by 26 publications

(18 citation statements)

References 23 publications

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“…Precise calculations for p-d scattering [2,3] below the deuteron breakup threshold including the Coulomb potential rigorously have recently become possible to perform. These calculations find [3,4] that a similar underprediction exists here for A y and also iT 11 . The agreement for other observables, including cross sections, T 20 , T 21 , T 22 , and n-d scattering lengths [5] is generally excellent.…”

supporting

confidence: 70%

Possible three-nucleon force effects in D–P scattering at low energies

et al. 1998

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We present measurements of the analyzing powers A y and iT 11 for proton-deuteron scattering at E c.m. = 432 keV. Calculations using a realistic nucleon-nucleon potential (Argonne V18) are found to underpredict both analyzing powers by ≈ 40%. The inclusion of the Urbana three-nucleon interaction does not significantly modify the calculated analyzing powers. Due to its short range, it is difficult for this three-nucleon interaction to affect A y and iT 11 at this low energy. The origin of the discrepancy remains an open question.

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supporting

confidence: 70%

Possible three-nucleon force effects in D–P scattering at low energies

et al. 1998

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“…We used p-d elastic scattering for which multiple absolute measurements of differential cross sections exist at energies near the range of interest for our measurements [17,18,19]. The data of Brune et al [18] was taken with the explicit purpose of normalizing relative differential cross-section data taken with the same equipment as the present work.…”

Section: A Normalization Techniquementioning

confidence: 99%

Precision measurements ofH2(d,p)
Leonard
¹
,
Karwowski
²
,
Brune
³

et al. 2006
Phys. Rev. C

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Recent Wilkinson Microwave Anisotropy Probe (WMAP) measurements have determined the baryon density of the Universe Ω b with a precision of about 4%. With Ω b tightly constrained, comparisons of Big Bang Nucleosynthesis (BBN) abundance predictions to primordial abundance observations can be made and used to test BBN models and/or to further constrain abundances of isotopes with weak observational limits. To push the limits and improve constraints on BBN models, uncertainties in key nuclear reaction rates must be minimized. To this end, we made new precise measurements of theHe total cross sections at lab energies from 110 keV to 650 keV. A complete fit was performed in energy and angle to both angular distribution and normalization data for both reactions simultaneously. By including parameters for experimental variables in the fit, error correlations between detectors, reactions, and reaction energies were accurately tabulated by computational methods. With uncertainties around 2% ± 1% scale error, these new measurements significantly improve on the existing data set. At relevant temperatures, using the data of the present work, both reaction rates are found to be about 7% higher than those in the widely used Nuclear Astrophysics Compilation of Reaction Rates (NACRE). These data will thus lead not only to reduced uncertainties, but also to modifications in the BBN abundance predictions.

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“…The data are taken from Refs. [29,30,31,32,33,34], as indicated in detail in the figure captions. By inspection of the figures, we can observe that: (i) theory and experiment are in disagreement for the A y and iT 11 Exp.…”

Section: Resultsmentioning

confidence: 99%

“…On the contrary, the Data are from Ref. [29] at E cm = 0.266 MeV, from Ref. [30] at E cm = 0.431 MeV, from Refs.…”

Section: Resultsmentioning

confidence: 99%

N−delastic scattering using the hyperspherical harmonics approach with realistic local and nonlocal interactions

et al. 2009

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The application of the hyperspherical harmonic approach to the case of the N − d scattering problem below deuteron breakup threshold is described. The nuclear Hamiltonian includes twoand three-nucleon interactions, in particular the Argonne v 18 , the N3LO-Idaho, and the V low−k two-nucleon, and the Urbana IX and N2LO three-nucleon interactions. Some of these models are local, some are non-local. Also electromagnetic effects are included. Accurate calculations for many scattering observables at various center-of-mass energies are performed and the results are compared with the available experimental data. Furthermore, a χ 2 analysis of some of the Hamiltonian models has been performed to compare their capability to describe the scattering process.

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Differential cross sections and analyzing powers for pd elastic scattering below 1.0 MeV

Cited by 26 publications

References 23 publications

Possible three-nucleon force effects in D–P scattering at low energies

Possible three-nucleon force effects in D–P scattering at low energies

Precision measurements ofH2(d,p)
Leonard
¹
,
Karwowski
²
,
Brune
³

et al. 2006
Phys. Rev. C

N−delastic scattering using the hyperspherical harmonics approach with realistic local and nonlocal interactions

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Differential cross sections and analyzing powers for pd elastic scattering below 1.0 MeV

Cited by 26 publications

References 23 publications

Possible three-nucleon force effects in D–P scattering at low energies

Possible three-nucleon force effects in D–P scattering at low energies

Precision measurements ofH2(d,p)Leonard1, Karwowski2, Brune3 et al. 2006Phys. Rev. C

N−delastic scattering using the hyperspherical harmonics approach with realistic local and nonlocal interactions

Contact Info

Product

Resources

About

Precision measurements ofH2(d,p)
Leonard
¹
,
Karwowski
²
,
Brune
³

et al. 2006
Phys. Rev. C