Measurements of differential cross sections fore-Ar, Kr, Xe scattering atE = 0.05 − 2 eV

Weyhreter, M.; Barzick, B.; Mann, A.K.; Linder, F.

doi:10.1007/bf01439803

Cited by 91 publications

(98 citation statements)

References 33 publications

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“…On the basis of this comparative study, it is also concluded that the value of scattering length, (−6.51 ± 0.05)a 0 , derived from time of flight data by Ferch et al [30] is the most probable. This result is in very good agreement with the value of −6.527a 0 obtained using original MERT analysis applied to very-low-energy elastic DCSs by Weyhreter et al [13]. Moreover, it is also consistent with A = −6.5a 0 determined by O'Malley [11] from very old TCS by Ramsauer and Kollath [35].…”

Section: Total Cross Sectionssupporting

confidence: 91%

“…The present results are compared at 1, 5, 7.9, and 10 eV with the experimental DCS of Register et al [46], Weyhreter et al [13], Gibson et al [47], and Linert et al [48] DCS ( [30]. The present results are compared at 30, 60, and 90 • with the experimental DCS of Weyhreter et al [13] and Gibson et al [47] experimental DCS data [13,[46][47][48] in Figs. 4 and 5.…”

Section: Differential Cross Sectionsmentioning

confidence: 59%

“…To the best of our knowledge, only O'Malley [11], Guskov et al [12], Weyhreter et al [13], and Kurokawa et al [14,15] used the original approach to MERT in order to extrapolate some low-energy e − −Xe experimental data down to zero energy. However, except the last paper, these analysis were done long time ago, when few datasets were available.…”

Section: Introductionmentioning

confidence: 99%

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Markov Chain Monte Carlo Effective Range Analysis of Low-Energy Electron Elastic Scattering from Xenon

Fedus

2015

Braz J Phys

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Modified effective range theory formulated as a Bayesian statistical model through the combination with Markov Chain Monte Carlo integration and fitting techniques is used to check the compatibility of different e − −Xe scattering data such as the total cross-sections, the momentum transfer cross-sections, and the differential cross-sections that were determined experimentally in the region of Ramsauer-Townsend minimum. On the basis of this predictive approach, the most probable value of the scattering length, (−6.51 ± 0.05)a 0 , is proposed. The present analysis suggests that the non-relativistic spinless effective range theory is suitable for the description of angular and energy dependencies of e − −Xe elastic scattering cross-sections below the threshold for first inelastic process.

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Section: Total Cross Sectionssupporting

confidence: 91%

Section: Differential Cross Sectionsmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

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Markov Chain Monte Carlo Effective Range Analysis of Low-Energy Electron Elastic Scattering from Xenon

Fedus

2015

Braz J Phys

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“…In particular, the lower minimum is predicted to shift dramatically, from about 40 • at 1 eV to about 90 • at 0.5 eV. The experiment suggests that the lower minimum shifts slightly more than predicted, to about 100 • , so that the two minima are even closer together than predicted by theory and coalesce into a nearly flat section between 100 • [23]. The line with the shallower minima represents the calculation after convoluting the results with an angular resolution of 5 • (FWHM).…”

Section: Resultsmentioning

confidence: 75%

High-resolution experiments andB-splineR-matrix calculations for elastic electron scattering from krypton

2011

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In a joint experimental and theoretical effort, we carried out a detailed study of elastic electron scattering from Kr atoms. Absolute angle-differential cross sections for elastic electron scattering were measured over the energy range 0.3−9.8 eV with an energy width of about 13 meV at scattering angles between 0 • and 180 • . Excellent agreement is obtained between our experimental data and predictions from a fully relativistic Dirac B-spline R-matrix (close-coupling) model that accounts for the atomic dipole polarizability through a specially designed pseudostate.

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“…By focusing the attention on the curve of the lowest density in Figure 1, we note that N is nearly constant at small fields. Then, it shows a maximum for a reduced field (E/N) max [30,31]. The RT minimum is located at an electron energy of RT ≈230-240 meV.…”

Section: Resultsmentioning

confidence: 99%

Electron mobility in dense Argon gas at several temperatures

Borghesani

Lamp²

Proceedings of 2002 IEEE 14th International Conference on Dielectric Liquids. ICDL 2002 (Cat. No.02CH37319)

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The mobility of excess electrons in dense Argon gas has been measured as a function of the applied electric field E and of the gas density N at several temperatures in the range 142.6T c and the small negative effect previously observed for T 90 K. In any case, the data at all temperatures confirm the interpretation of the anomalous density effect as being essentially due by the density-dependent quantum shift of the electron ground state kinetic energy in a disordered medium as a result of multiple scattering (MS) processes, although other MS processes do influence the outcome of the experiment.

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Measurements of differential cross sections fore-Ar, Kr, Xe scattering atE = 0.05 − 2 eV

Cited by 91 publications

References 33 publications

Markov Chain Monte Carlo Effective Range Analysis of Low-Energy Electron Elastic Scattering from Xenon

Markov Chain Monte Carlo Effective Range Analysis of Low-Energy Electron Elastic Scattering from Xenon

High-resolution experiments andB-splineR-matrix calculations for elastic electron scattering from krypton

Electron mobility in dense Argon gas at several temperatures

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