We propose a surgical measurement of short-range correlations (SRC), in inelastic electron scattering via the two proton knockout reaction He(e; e0pp)nsp. Such correlations have a speci c dynamical signature, in the ground state wavefunction of the target nucleus, which bridges the gap between nucleonic and quark degrees of freedom. As such, these measurements will provide severe constraints on...

the gas separation performance of commercial ceramic titania and hybrid silica (hybsi®) membranes was assessed using the gas permeation and permporometry methods. results indicated that the hybsi® membranes have a hybrid surface containing regions covered by a polymeric matrix and others with inorganic pores. these membranes have high h2 selectivity, which increases significantly with temperatu...

We report on a detailed study of longitudinal strength in the nucleon resonance region, presenting new results from inclusive electron-proton cross sections measured at Jefferson Lab Hall C four-momentum transfer range 0.2<Q2<5.5GeV2. The data have been used to accurately perform 167 Rosenbluth-type longitudinal/transverse separations. precision R=σL/σT are presented here, along with first sepa...

The proton elastic form factor ratio shows a discrepancy between measurements using the Rosenbluth technique in unpolarized beam and target experiments polarization degrees of freedom. proposed explanation this is uncorrected hard two-photon exchange (TPE), type radiative correction that conventionally neglected. effect size agreement with theoretical predictions has been tested recently by thr...

We develop the kinetic theory of classical and quantum particles (fermions bosons) in gravitational interaction. The may have applications context dark matter. For simplicity, we consider an infinite spatially homogeneous system (or make a local approximation) neglect collective effects. This leads to Landau equation derived heuristically (Physica A 332: 89, 2004). establish its main properties...

We find a numerical self-consistent stellar model by finding the distribution function of a thin disk that satisfies simultaneously the Fokker-Planck and Poisson equations. The solution of the Fokker-Planck equation is found by a direct numerical solver using finite differences and a variation of Stone’s method. The collision term in the Fokker-Planck equation is found using the local approxima...

We study the conformational properties of heteropolymers containing two types of monomers A and B, modeled as self-attracting self-avoiding random walks on a regular lattice. Such a model can describe in particular the sequences of hydrophobic and hydrophilic residues in proteins [K. F. Lau and K. A. Dill, Macromolecules 22, 3986 (1989)] and polyampholytes with oppositely charged groups [Y. Kan...

A statistical analysis of the elastic unpolarized electron proton scattering data shows that, at large momentum transfer, the size and the ǫ dependence of the radiative corrections, as traditionally calculated and applied, may induce large correlations of the parameters of the Rosenbluth fit, which prevent a correct extraction of the electric proton form factor. Using the electron QED structure...