Ground State Structure of a Coupled 2-Fermion System in Supersymmetric Quantum Mechanics

We prove the uniqueness of the ground state for a supersymmetric quantum mechanical system of two fermions and two bosons, which is closely related to the N=1 WZ-model. The proof is constructive and gives detailed information on what the ground state looks like.Comment: 8 pages, LaTe

Quark and Gluon Orbital Angular Momentum and Spin in Hard Processes

We suggest a method of constructing gauge invariant quark and gluon distributions that describe an abstract QCD observable and apply this method to analyze angular momentum of a hadron. In addition to the known quark and gluon polarized structure functions, we obtain gauge invariant distributions for quark and gluon orbital angular momenta, and consider some basic properties of these distributions and their moments.Comment: 16 pages, no figures, RevTe

A study of the need for a Jewish Community Center of Greater Lynn extension group work program in the Swampscott-Marblehead area for children six to fourteen years old.

Thesis (M.S.)--Boston Universit

On the QCD Evolution of the Transversity Distribution

The QCD evolution of the transversity distributions is investigated and compared to that of the helicity distributions. It is shown that they differ largely in the small-$x$ region. It is also proved that the evolution preserves Soffer's inequality among the three leading-twist distribution functions.Comment: 9 pages, 1 figur

On the ξ\xi-Distribution of Inclusively Produced Particles in e+e−e^+e^- Annihilation

We discuss the momentum distributions of inclusively produced particles in $e^+e^-$ annihilation. We show that the dependence of the position of the maxima of the $\xi=\ln(1/z)$ spectra on the mass of the produced particles follows naturally from the general definition of fragmentation functions when energy-momentum conservation is correctly incorporated