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Radiative weak decays of charm mesons

Gustavo Burdman, Eugene Golowich, JoAnne L. Hewett, and Sandip Pakvasa

  • Fermilab, Batavia, Illinois 60510
  • Department of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts 01003
  • Stanford Linear Accelerator Center, Stanford Linear Accelerator Center, Stanford, California 94309
  • Department of Physics and Astronomy, University of Hawaii, Honolulu, Hawaii 96822

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Phys. Rev. D 52, 6383 – Published 1 December, 1995

DOI: https://doi.org/10.1103/PhysRevD.52.6383

Abstract

We address standard model predictions for flavor-changing radiative transitions of the pseudoscalar charm mesons. Short-distance contributions in D radiative transitions are contrasted with those in B decays. A full analysis is presented of the c→u+γ electromagnetic penguin amplitude with QCD radiative corrections included. Given the importance of long-range effects for the charm sector, special attention is paid to such contributions as the vector dominance and pole amplitudes. A number of two-body final states in exclusive charm radiative decays is considered and the corresponding branching ratio predictions are given.

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Phys. Rev. D 52, 6383– Published 1 December, 1995
  • Received 27 February 1995

© 1995 American Physical Society

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