نتایج جستجو برای: spin asymmetry
تعداد نتایج: 156923 فیلتر نتایج به سال:
We propose the new approach for taking into account the Q 2 dependence of measured asymmetry A 1. This approach is based on the similarity of the Q 2 behaviour and the shape of the spin-dependent structure function g 1 (x, Q 2) and spin averaged structure function F 3 (x, Q 2). The analysis is applied on the SMC and E154 experimental data. An experimental study of the nucleon spin structure is ...
We propose the new approach for taking into account the Q 2 dependence of measured asymmetry A 1. This approach is based on the similarity of the Q 2 behaviour and the shape of the spin-dependent structure function g 1 (x, Q 2) and spin averaged structure function F 3 (x, Q 2). The analysis is applied on the SMC and E154 experimental data. An experimental study of the nucleon spin structure is ...
We investigated spin-dependent transport properties from a viewpoint of spin detection and injection using a ferromagnetic metal / insulator (Al2O3)/ semiconductor tunnel junction with homogeneous and flat interfaces. For spin detection from the semiconductor, spin-polarized electrons were excited in the GaAs layer by circularly polarized light and injected into the permalloy layer. The energy ...
A next-to-leading order QCD analysis of spin asymmetries and structure functions in polarized deep inelastic lepton nucleon scattering is presented within the framework of the radiative parton model. The Q-dependence of the spin asymmetry Ap1(x,Q ) is shown to be nonnegligible for x-values relevant for the analysis of the present data. In the second part of the paper we present LO results for r...
We propose that with ultracold Fermi gases one can realize a spin-asymmetric Josephson effect in which the two spin components of a Cooper pair are driven asymmetrically--corresponding to driving a Josephson junction of two superconductors with different voltages V(↑) and V(↓) for spin up and down electrons, respectively. We predict that the spin up and down components oscillate at the same fre...
We consider the spin and pseudospin (charge) response functions of the exactly soluble Anderson atom model. We demonstrate, in particular, that a deviation from the magnetic Curie-law behaviour, appropriate for a free spin one-half, increases with increasing asymmetry and temperature. In general, oscillator strength is transferred from the spin degrees of freedom to the pseudospin modes. We als...
In this Letter, we report the first experimental realization and investigation of a spin-orbit coupled Fermi gas. Both spin dephasing in spin dynamics and momentum distribution asymmetry of the equilibrium state are observed as hallmarks of spin-orbit coupling in a Fermi gas. The single particle dispersion is mapped out by using momentum-resolved radio-frequency spectroscopy. From momentum dist...
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