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

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

1992-09-15

arxiv.org/abs/hep-ph/9209241v1

Phys.Lett.B296:415-419,1992

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages plus 3 pages of figures in POSTSCRIPT file appended to TeX file (uses harvmac.tex and tables.tex), UCSD/PTH 92-31, CAL

Scientific paper

10.1016/0370-2693(92)91341-6

The implications of chiral $SU(3)_L \times SU(3)_R$ symmetry and heavy quark
symmetry for the radiative decays $D^{*0}\to D^0\gamma$, $D^{*+}\to D^+\gamma$,
and $D_s^*\to D_s\gamma$ 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 $D^* D\pi$ coupling.

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