Elastische Elektronenstreuung an4He zwischen 30 und 59 MeV

Erich, U.; Frank, H.; Haas, D.; Prange, H.

doi:10.1007/bf01395278

Cited by 41 publications

(10 citation statements)

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“…Experiments at low momentum transfers have been carried out by vonGunten [66] and Erich et al [74] at Darmstadt, and by Ottermann et al [67] at Mainz, the latter reaching Q ∼2 fm −1 . The data at medium momentum transfers come from two experiments performed at the Stanford HEPL machine by Frosch et al [75] and McCarthy et al [70].…”

Section: Experiments On 4 Hementioning

confidence: 99%

Electromagnetic structure of few-nucleon ground states

Marcucci

Gross

Peña

et al. 2016

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

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Abstract. Experimental form factors of the hydrogen and helium isotopes, extracted from an up-to-date global analysis of cross sections and polarization observables measured in elastic electron scattering from these systems, are compared to predictions obtained in three different theoretical approaches: the first is based on realistic interactions and currents, including relativistic corrections (labeled as the conventional approach); the second relies on a chiral effective field theory description of the strong and electromagnetic interactions in nuclei (labeled χEFT); the third utilizes a fully relativistic treatment of nuclear dynamics as implemented in the covariant spectator theory (labeled CST). For momentum transfers below Q 5 fm −1 there is satisfactory agreement between experimental data and theoretical results in all three approaches. However, at Q 5 fm −1 , particularly in the case of the deuteron, a relativistic treatment of the dynamics, as is done in the CST, is necessary. The experimental data on the deuteron A structure function extend to Q ≃ 12 fm −1 , and the close agreement between these data and the CST results suggests that, even in this extreme kinematical regime, there is no evidence for new effects coming from quark and gluon degrees of freedom at short distances.

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Section: Experiments On 4 Hementioning

confidence: 99%

Electromagnetic structure of few-nucleon ground states

Marcucci

Gross

Peña

et al. 2016

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

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“…The uncertainty bands include the statistical GFMC uncertainties added in quadrature (for the N 2 LO results) to the uncertainty from the truncation of the chiral expansion as described in the text. The data are from an unpublished compilation by Sick based on Refs [74][75][76][77][78]…”

mentioning

confidence: 99%

Quantum Monte Carlo calculations of light nuclei with local chiral two- and three-nucleon interactions

et al. 2017

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Local chiral effective field theory interactions have recently been developed and used in the context of quantum Monte Carlo few-and many-body methods for nuclear physics. In this work, we go over detailed features of local chiral nucleon-nucleon interactions and examine their effect on properties of the deuteron, paying special attention to the perturbativeness of the expansion. We then turn to three-nucleon interactions, focusing on operator ambiguities and their interplay with regulator effects. We then discuss the nuclear Green's function Monte Carlo method, going over both wave-function correlations and approximations for the two-and three-body propagators. Following this, we present a range of results on light nuclei: Binding energies and distribution functions are contrasted and compared, starting from several different microscopic interactions.

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“…There were many groups that have measured the electromagnetic form factor of alpha at low four momentum transfers [23][24][25][26]. The experimental data are parameterized as 2with a  0.316 fm and b  0.675 fm [26].…”

Section: Form Factor Of Alphamentioning

confidence: 99%

Variation in rms charge radii of deuteron and helium nuclei with s\sqrt s

et al. 2020

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By considering energy-dependent form factors extracted from generalized Chou–Yang model, root mean square (rms) charge radii of deuteron and helium nuclei (alpha) are predicted at different values of center of mass energy which are in good agreement with theoretical predictions and experimental results. The rms radius is inversely proportional to mass of nuclei. Besides, the relationship between radii and energy are also derived.

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Elastische Elektronenstreuung an4He zwischen 30 und 59 MeV

Cited by 41 publications

References 0 publications

Electromagnetic structure of few-nucleon ground states

Electromagnetic structure of few-nucleon ground states

Quantum Monte Carlo calculations of light nuclei with local chiral two- and three-nucleon interactions

Variation in rms charge radii of deuteron and helium nuclei with s\sqrt s

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