Radiative $D^*$ Decay Using Heavy Quark and Chiral Symmetry

Amundson, J. F.; Boyd, C. G.; Jenkins, E.; Luke, M.; Manohar, A. V.; Rosner, J. L.; Savage, M. J.; Wise, M. B.

Radiative $D^*$ Decay Using Heavy Quark and Chiral Symmetry

Authors

Description

The implications of chiral $SU(3)_L \times SU(3)_R$ symmetry and heavy quark symmetry for the radiative decays $D^{*0}\to D^0γ$, $D^{*+}\to D^+γ$, and $D_s^*\to D_sγ$ are discussed. Particular attention is paid to $SU(3)$ violating contributions of order $m_q^{1/2}$. Experimental data on these radiative decays provide constraints on the $D^* Dπ$ coupling.
9 pages plus 3 pages of figures in POSTSCRIPT file appended to TeX file (uses harvmac.tex and tables.tex), UCSD/PTH 92-31, CALT-68-1816, EFI-92-45, CERN-TH.6650/92