_________________________________________________________________________________________________ *Correspondence: Ralph Dornburg, The Dorrance H. Hamilton Laboratories, and Center for Human Virology, Division of Infectious Diseases, Jefferson Medical College. Thomas Jefferson University, Jefferson Alumni Hall, 1020 Locust Street, Room 329, Philadelphia, PA 19107. phone: 215-503-3117; fax: 215-...

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We review the compelling case for establishing a capability to accelerate positrons at Jefferson Lab. The potential appplications range from the study of two-photon exchange and deeplyvirtual Compton scattering to exploiting the charge current weak interaction to probe the flavor structure of hadrons and nuclei. There are also fascinating ideas for using such a capability to discover new physic...

From the $Department of Biochemistry and Molecular Biology, Jefferson Institute of Molecular Medicine, Jefferson Medical College, Thomas Jefferson University, Philndelphia, Pennsylvania 19107, the §Department of Pathology, New York State College of Veterinary Medicine, Cornell University, Zthaca, New York 14853, and the (Genetique Medicale et Teratologie, Universite Catholique De Louvain, Bruxe...