Strong decay amplitudes using the Talmi-Moshinsky transformation and the suppressed production of the 1−+1^{-+} hybrid

The Talmi-Moshinsky transformation is applied to the strong decay and production of mesons. Amplitudes for conventional mesons are obtained in a simple way and are generalised to encompass the production and decay of hybrid states. The selection rule disfavouring hybrid decay into pairs of identical S-wave mesons has a natural explanation and a new class of selection rules is uncovered with implications for production of the exotic $1^{-+}$ hybrid in $e^+e^-$ experiments, charmonia decays and the lattice.Comment: 15 pages; some significant changes in revised version including additional phenomenolog

P-wave spin-spin splitting and meson loops

In quark potential models the hyperfine splitting of P-wave mesons is zero in the nonrelativistic limit, a prediction strikingly confirmed by experiment in both charmonia and bottomonia. The result, however, ignores the coupling of bare quarkonia to meson-meson pairs. This coupling causes mass shifts among the states and so could potentially spoil the quark model prediction. This turns out not to be the case: in a variety of models the hyperfine splitting remains small despite large mass shifts. This is shown to be a generic feature of models in which the coupling involves the creation of a light quark pair with spin-one and the quark spin wavefunctions are conserved. This talk reports on the results of Phys. Rev. D84, 034021 (2011).Comment: 4 pages, typo corrected. Contribution to the Proceedings of the XIV International Conference on Hadron Spectroscopy (Hadron 2011), 13-17 June 2011, Munich, German

A comparison of the fluency of oral and written recall of children in the fourth grade.

Thesis (Ed.M.)--Boston Universit

Freedom, Finality, and Federal Preemption: Seeking Expanded Judicial Review of Arbitration Awards Under State Law After Hall Street

When the U.S. Supreme Court decided Hall Street Associates, L.L.C. v. Mattel, Inc. in March 2008, the Court held that under the Federal Arbitration Act (FAA), parties to an arbitration agreement may not contractually expand the grounds for judicial review of an arbitration award beyond the grounds enumerated in the FAA. In dicta, however, the Court expressly left open the possibility that parties nonetheless may obtain expanded review by relying on state arbitration law, rather than the FAA. This Note examines the availability of contractually expanded review under state law and addresses the question of whether, in light of Hall Street’s holding and despite its dicta, the FAA preempts state laws that otherwise would permit expanded review of arbitration awards. This Note looks at the history and development of the FAA and examines its preemptive effect on state laws. It then analyzes the arguments for and against the proposition that the FAA preempts state laws that permit expanded review. Finally, this Note argues that the FAA should preempt state laws that permit expanded review, unless the parties have expressly agreed that state arbitration law will apply to the exclusion of the FAA

Hybrid meson properties in Lattice QCD and Flux Tube Models

Flux tube model predictions for hybrid meson decays are beginning to be confronted by Lattice QCD. We compare the two approaches for the $S$-wave decay of the exotic $1^{-+}$, and find excellent agreement. Results suggest that in Strong QCD, \qq~ creation occurs with S=1.Comment: 6 pages, 1 figure, v2: discussion of parameters and lattice uncertainties adde

Propulsion sizing program

Computer program was written to evaluate and define optimum design parameters of low pressure auxiliary propulsion system. APS will provide attitude and translational control of space shuttle vehicles. Program evaluates subsystem design parameters such as engine chamber pressure, mixture ratio, expansion ratio, and subsystem component weight and size

The low frequency cutoff of ELF emissions

Extremely low and very low frequency radio noises observed by satellites in ionospher