Peer-to-Peer, Phish-to-Pod: Lateral Learning at the Dekko Foundation

Read how the Dekko Foundation empowers their youth philanthropy leadership board, phish (Philanthropy Ideas Strategy Heart), to make youth philanthropy more effective

The Before and After of Grantmaking: Fundraising and Engagement

This case study explores the Teen Grantmaking Initiative (TGI), a program of the Center for Arab-American Philanthropy (CAAP), which is itself a program of ACCESS, a nonprofit dedicated to the advancement of a just society for Arab-Americans

Nuclei as Laboratories: Nuclear Tests of Fundamental Symmetries

The prospect of a rare isosotope accelerator facility opens up possibilities for a new generation of nuclear tests of fundamental symmetries. In this talk, I survey the current landscape of such tests and discuss future opportunities that a new facility might present.Comment: To appear in proceedings of 3rd ANL/MSU/INT/JINA Theory Workshop, Argonne National Laboratory (April, 2006); 13 page

Searching for T-Violating, P-Conserving New Physics with Neutrons

The observance of parity conserving time reversal violation in light quark systems could signal the presence of physics beyond the Standard Model. I discuss the implications of low-energy time reversal tests for the existence of such T-violating, P-conserving (TVPC) interactions. I argue that searches for permanent electric dipole moments (EDM's) and direct TVPC searches provide complementary information on P-conserving T-violation. EDM searches yield constraints only under the assumption that parity symmetry is restored at the scale Lambda associated with new TVPC physics. If parity remains broken at short distances, direct searches yield the least ambiguous bounds. In the latter case, improving the experimental precision of direct TVPC searches in neutron beta-decay and polarized epithermal neutron transmission at the Spallation Neutron Source could yield tighter bounds.Comment: To appear in proceedings of Workshop on Fundamental Physics with Pulsed Neutron Beams, held at the Research Triangle Park, North Carolina, June 1 -- 3, 2000. Nine page

Electrons, New Physics, and the Future of Parity-Violation

The study of parity-violation in semi-leptonic processes has yielded important insights into the structure of the Standard Model and the substructure of the nucleon. I discuss the future of semi-leptonic parity-violation and the role it might play in uncovering physics beyond the Standard Model.Comment: To apperar in the Proceedings of the Bates25 Symposium. 18pgs. Uses aipproc.sty (included

Meson-Exchange Currents and the Strangeness Radius of 4he

Meson-exchange current contributions to the strangeness radius of $^4$He are computed in the one-boson exchange approximation. It is found that these contributions introduce a \lapp10\% correction to the one-body contribution. They should not, therefore, hamper the extraction of the nucleon strangeness radius from the parity-violating electron-$^4$He asymmetry.Comment: 9 tex pages and 2 figures (not included, available from authors on request), CEBAF Preprint #TH-93-16 and MIT Preprint CTP#223

Weak Interactions in Atoms and Nuclei: The Standard Model and Beyond

Studies in nuclear and atomic physics have played an important role in developing our understanding of the Standard Model of electroweak interactions. We review the basic ingredients of the Standard Model, and discuss some key nuclear and atomic physics experiments used in testing these ideas. We also summarize the conceptual issues of the Standard Model that motivate the search for new physics.Comment: 51 pages, 25 figure

Low Energy Tests of the Weak Interaction

The study of low energy weak interactions of light quarks and leptons continues to provide important insights into both the Standard Model as well as the physics that may lie beyond it. We review the status and future prospects for low energy electroweak physics. Recent important experimental and theoretical developments are discussed and open theoretical issues are highlighted. Particular attention is paid to neutrino physics, searches for permanent electric dipole moments, neutral current tests of the running of the weak mixing angle, weak decays, and muon physics. We argue that the broad range of such studies provides an important complement to high energy collider searches for physics beyond the Standard Model. The use of low energy weak interactions to probe novel aspects of hadron structure is also discussed.Comment: 82 pages, 6 figures: published version (with some additional references and a typographical error fixed