7,516 research outputs found
Superscaling in electron- and neutrino-nucleus scattering
The superscaling properties of electron scattering data are used to extract
model-independent predictions for neutrino-nucleus cross sections.Comment: Contibution to NuInt05, 4th international workshop on
neutrino-nucleus interaction in the few GeV region, Sept. 26 - 29 2005,
Okayama, Japa
Scale Separation Scheme for Simulating Superfluid Turbulence: Kelvin-Wave Cascade
A Kolmogorov-type cascade of Kelvin waves--the distortion waves on vortex
lines--plays a key part in the relaxation of superfluid turbulence at low
temperatures. We propose an efficient numeric scheme for simulating the Kelvin
wave cascade on a single vortex line. The idea is likely to be generalizable
for a full-scale simulation of different regimes of superfluid turbulence. With
the new scheme, we are able to unambiguously resolve the cascade spectrum
exponent, and thus to settle the controversy between recent simulations [1] and
recently developed analytic theory [2].
[1] W.F. Vinen, M. Tsubota and A. Mitani, Phys. Rev. Lett. 91, 135301 (2003).
[2] E.V. Kozik and B.V. Svistunov, Phys. Rev. Lett. 92, 035301 (2004).Comment: 4 pages, RevTe
A simple model for NN correlations in quasielastic lepton-nucleus scattering
We present a covariant extension of the relativistic Fermi gas model which
incorporates correlation effects in nuclei. Within this model, inspired by the
BCS descriptions of systems of fermions, we obtain the nuclear spectral
function and from it the superscaling function for use in treating high-energy
quasielastic electroweak processes. Interestingly, this model has the
capability to yield the asymmetric tail seen in the experimental scaling
function.Comment: 11 pages, 6 figures, Proceedings of the Twenty Seventh International
Workshop on Nuclear Theory, June 23 - 28, 2008, Rila mountains, Bulgari
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