We provide a comprehensive analysis of the power of including top quark-polarisation information to kinematically challenging top pair resonance searches, for which ATLAS and CMS start losing sensitivity. Following the general modelling and analysis strategies pursued by the experiments, we analyse the semi-leptonic and the di-lepton channels and show that including polarisation information can...

Abstract Spin current is a very important tensor quantity in spintronics. However, the well-known spin-Hall effect (SHE) can only generate few of its components whose propagating and polarization directions are perpendicular with each other to an applied charge current. It highly desirable applications spin currents be any possible direction. Here anomalous SHE inverse (ISHE) magnetic systems p...

The production of J = 1++, 0−+ and 2−+ mesons in double tagged e+e− → e+e−R is calculated and found to have the same polarisation and dynamical characteristics as observed in pp → ppR. Implications for the spin structure of the Pomeron are considered. Production of 0++, 2++ mesons in these two processes may enable the dynamical nature of these mesons to be determined. 1 e-mail: [email protected]

The time-window for processing electron spin information (spintronics) in solid-state quantum electronic devices is determined by the spin-lattice and spin-spin relaxation times of electrons. Minimizing the effects of spin-orbit coupling and the local magnetic contributions of neighbouring atoms on spin-lattice and spin-spin relaxation times at room temperature remain substantial challenges to ...

New high-precision measurements of the isotropic as well as of three directional Compton spectra of lithium hydride have been carried out using 2 4 ' A m as a y-ray source. In order to account for the extreme sensitivity of LiH powder to atmospheric moisture, the final data (i.e. the reciprocal form factor) were corrected for the LiOH content determined by titrimetric analysis. For the interpre...

The ability to control and exploit quantum coherence and entanglement drives research across many fields ranging from ultra-cold quantum gases to spin systems in condensed matter. Transcending different physical systems, optical approaches have proven themselves to be particularly powerful, since they profit from the established toolbox of quantum optical techniques, are state-selective, contac...

A microscopic picture of electron-electron pair scattering in single mode quantum wires is introduced which includes electron spin. A new source of ‘excess’ noise for hot carriers is presented. We show that zero magnetic field ‘spin’ splitting in quantum wires can lead to a dramatic ‘spin’-subband dependence of electron–electron scattering, including the possibility of strong suppression. As a ...

During the data taking years from 1996 to 2000 the LEP2 program has delivered ee interactions at centre of mass energies ranging from 161 to 207 GeV. In this period the four LEP experiments (ALEPH, DELPHI, L3, OPAL) have collected a total integrated luminosity of almost 3 fb. The LEP2 data yielded about 40,000 W pair events, reconstructed in all their decay channels. Event rates allowed measure...