First observation and Dalitz analysis of the D0-->K(0)Setapi(0) decay. Academic Article uri icon


  • Using 9.0 fb(-1) of integrated luminosity in e(+)e(-) collisions near the Upsilon(4S) mass collected with the CLEO II.V detector we report the first observation of the decay D0-->K(0)(S)etapi(0). We measure the ratio of branching fractions, BR(D0-->K(0)(S)etapi(0))BR / (D0-->K(0)(S)pi(0))=0.46+/-0.07+/-0.06. We perform a Dalitz analysis of 155 selected D0-->K(0)(S)etapi(0) candidates and find leading contributions from a(0)(980)K(0)(S) and K(*)(892)eta intermediate states.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Rubin, P., Eisenstein, B. I., Gollin, G. D., Karliner, I., Lowrey, N., Naik, P., ... CLEO Collaboration.

publication date

  • January 1, 2004 11:11 AM