## New Directions in Antimatter Chemistry and PhysicsClifford M. Surko, Franco A. Gianturco This volume is the outgrowth of a workshop held in October, 2000 at the Institute for Theoretical Atomic and Molecular Physics at the Harvard- Smithsonian Center for Astrophysics in Cambridge, MA. The aim of this book (similar in theme to the workshop) is to present an overview of new directions in antimatter physics and chemistry research. The emphasis is on positron and positronium interactions both with themselves and with ordinary matter. The timeliness of this subject comes from several considerations. New concepts for intense positron sources and the development of positron accumulators and trap-based positron beams provide qualitatively new experimental capabilities. On the theoretical side, the ability to model complex systems and complex processes has increased dramatically in recent years, due in part to progress in computational physics. There are presently an intriguing variety of phenomena that await theoretical explanation. It is virtually assured that the new experimental capabilities in this area will lead to a rapid expansion of this list. This book is organized into four sections: The first section discusses potential new experimental capabilities and the uses and the progress that might be made with them. The second section discusses topics involving antihydrogen and many-body phenomena, including Bose condensation of positronium atoms and positron interactions with materials. The final two sections treat a range of topics involving positron and positronium interactions with atoms and molecules. |

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A. P. Mills annihilation rate antihydrogen Antimatter antiproton approximation atoms and molecules basis functions basis set binding energy Born-Oppenheimer approximation bound C. M. Surko calculations Chem collisions computed correlation D. M. Schrader density dipole distribution effect elastic scattering electron-positron equation experimental experiments Feshbach resonances Figure Gianturco Hartree hydrogen inelastic interaction ionization potential Laricchia Lett lifetime low energy magnetic field measurements method Mitroy molecular momentum Nucl obtained parameters particles Penning trap Phys Physics plasma polarization pore positron and electron positron annihilation positron beam positron binding positron energies positron impact positron scattering positron-molecule positronium formation potential predicted projectile proton protonium pulse quantum quantum Monte Carlo R. G. Greaves ratio resonances scattering cross sections singlet spin Sueoka surface target technique temperature theoretical thermal total cross section trap valence electrons values wave function wavefunction Zeff