355 research outputs found
Research on Staff loyalty of Creative Industries Enterprise from the Perspective of stakeholder
Abstract: This article from the perspective of stakeholders, learned theory of stakeholders, creative industries, staff loyalty and staff loyalty level; established index system for evaluating employees loyalty of creative industries; through the fuzzy comprehensive evaluation method and examples of Wuxi enterprises of the creative industries, did quantification and applied research to index system.
Key words: Stakeholder; Creative Industries; Staff loyalt
Right-handed Dirac and Majorana neutrinos at Belle II
We assess the ability of the Belle II experiment to probe the Dirac or
Majorana nature of a massive right-handed neutrino (RHN) in the MeV to GeV
mass range. We consider the production and decay of RHNs to proceed via new
interactions described by the standard model effective field theory (SMEFT)
extended with right-handed neutrino fields (SMNEFT), and not via mass mixing
with active neutrinos. We find that Belle II has the potential to discover
if kinematically accessible. We perform detailed simulations of the angular
distributions of lepton pairs from the decay of produced in two-body and
three-body decays of mesons. We show that for above 100 MeV, Belle II
can distinguish between Dirac and Majorana neutrinos at more than the 5
CL for most operators, and the combination of the production and decay
operators can be identified from the subsequent decay of the heavy neutrino.
Also, the production operators can be identified using three-body meson
decay independently of .Comment: 27 pages, 13 figures, 12 table
Extending the unified subhalo model to warm dark matter
Using a set of high-resolution N-body simulations, we extend the unified
distribution model of cold dark matter (CDM) subhaloes to the warm dark
matter(WDM) case. The same model framework combining the unevolved mass
function, unevolved radial distribution, and tidal stripping can predict the
mass function and spatial distribution of subhaloes in both CDM and WDM
simulations. The dependence of the model on the DM particle property is
universally parameterized through the half-mode mass of the initial power
spectrum. Compared with the CDM model, the WDM model differs most notably in
two aspects. 1) In contrast to the power-law form in CDM, the unevolved subhalo
mass function for WDM is scale-dependent at the low mass end due to the cut-off
in the initial power spectrum. 2) WDM subhaloes are more vulnerable to tidal
stripping and disruption due to their lower concentrations at accretion time.
Their survival rate is also found to depend on the infall mass. Accounting for
these differences, the model predicts a final WDM subhalo mass function that is
also proportional to the unevolved subhalo mass function. The radial
distribution of WDM subhaloes is predicted to be mass-dependent. For low mass
subhaloes, the radial distribution is flatter in the inner halo and steeper in
the outer halo compared to the CDM counterpart, due to the scale-dependent
unevolved mass function and the enhanced tidal stripping. The code for sampling
subhaloes according to our generalized model is available at
https://github.com/fhtouma/subgen2 .Comment: 15 pages, 14 figure
Nonequilibrium Mean-Field Theory of Resistive Phase Transitions
We investigate the quantum mechanical origin of resistive phase transitions
in solids driven by a constant electric field in the vicinity of a
metal-insulator transition. We perform a nonequilibrium mean-field analysis of
a driven-dissipative anti-ferromagnet, which we solve analytically for the most
part. We find that the insulator-to-metal transition (IMT) and the
metal-to-insulator transition (MIT) proceed by two distinct electronic
mechanisms: Landau-Zener processes, and the destabilization of metallic state
by Joule heating, respectively. However, we show that both regimes can be
unified in a common effective thermal description, where the effective
temperature depends on the state of the system. This explains
recent experimental measurements in which the hot-electron temperature at the
IMT was found to match the equilibrium transition temperature. Our analytic
approach enables us to formulate testable predictions on the non-analytic
behavior of - relation near the insulator-to-metal transition. Building
on these successes, we propose an effective Ginzburg-Landau theory which paves
the way to incorporating spatial fluctuations, and to bringing the theory
closer to a realistic description of the resistive switchings in correlated
materials.Comment: 18 pages, 9 figure
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