1999/08/18 by A. J. Schwartz, Schwartz, A. J.
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Superconducting Materials and Applications #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/9908054
8 pages, 2 figures, contribution to XXXIVth Rencontres de Moriond, Electroweak Interactions and Unified Theories, March, 1999
arxiv created 1999/08/18 · openalex publication_date 1999/08/18 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Fermilab experiment E791 studied weak decays of D+, Ds, and D0 mesons produced in collisions of 500 GeV/c negative pions with Pt and C targets. The experiment collected over 200,000 fully reconstructed charm decays. Four recent results are discussed here: (a) measurement of the form factor ratios V/A1, A2/A1, and A3/A1 in D->K*-l-nu and Ds->phi-l-nu decays; (b) measurement of the difference in decay widths ΔΓ between the two D0/D0-bar mass eigenstates; (c) search for rare and forbidden D decays to dilepton final states; and (d) search for a ``Pentaquark,'' a bound state of c-bar-suud.