Now showing items 11631-11640 of 12458
Autoionization of very-high-n strontium Rydberg atoms
The autoionization of high n, n~280-430, strontium Rydberg states through excitation of the 5s 2S1/2→5p 2P1/2 transition in the core ion is investigated. The autoionization rates decrease rapidly as L is increased paving ...
Searches for new physics using the t t invariant mass distribution in pp collisions at √s=8TeV
Searches for anomalous top quark-antiquark production are presented, based on pp collisions at s√=8 TeV. The data, corresponding to an integrated luminosity of 19.7 fb−1, were collected with the CMS detector at the LHC. ...
Balancing supply and demand under bilateral constraints
In a moneyless market, a nondisposable homogeneous commodity is reallocated between agents with single-peaked preferences. Agents are either suppliers or demanders. Transfers between a supplier and a demander are feasible ...
Mirror, Mask and Anti-self: Forces of Literary Creation in Dion Fortune and W.B. Yeats
In what follows, we will explore some of the links between self-creation and artistic creation in the works of two early twentieth century occultists who were also responsible for works of fiction and poetry: the novelist ...
Number-conserving interacting fermion models with exact topological superconducting ground states
We present a method to construct number-conserving Hamiltonians whose ground states exactly reproduce an arbitrarily chosen BCS-type mean-field state. Such parent Hamiltonians can be constructed not only for the usual ...
Effective Computation of Picard Groups and Brauer-Manin Obstructions of Degree Two K3 Surfaces Over Number Fields
Using the Kuga-Satake correspondence we provide an effective algorithm for the computation of the Picard and Brauer groups of K3 surfaces of degree 2 over number fields.
Observation of Forbidden Exciton Transitions Mediated by Coulomb Interactions in Photoexcited Semiconductor Quantum Wells
We use terahertz pulses to induce resonant transitions between the eigenstates of optically generated exciton populations in a high-quality semiconductor quantum well sample. Monitoring the excitonic photoluminescence, we ...
Simulation-based estimation: a case study in oncology (SIMEST) and a case study in portfolio selection (SIMUGRAM)
Since the time of Poisson, stochastic processes have been axiomatized in the temporally forward direction. Yet for nearly a century, estimation of parameters and even forecasts have been based on likelihood approaches that ...
Spin susceptibility of the topological superconductor UPt3 from polarized neutron diffraction
Experiment and theory indicate that UPt 3 is a topological superconductor in an odd-parity state, based in part from the temperature independence of the NMR Knight shift. However, quasiparticle spin-flip scattering ...