Measurement of sigma(e+e- -->psi(3770)-->hadrons) at Ec.m.=3773 MeV. Academic Article uri icon

abstract

  • We measure the cross section for e+e- -->psi(3770) -->hadrons at Ec.m.=3773 MeV to be (6.38+/-0.08(+0.41)(-0.30) nb using the CLEO detector at the CESR e+e- collider. The difference between this and the e+e- -->psi(3770) -->DD cross section at the same energy is found to be (-0.01+/-0.08(+0.41)(-0.30) nb. With the observed total cross section, we extract Gamma(ee)(psi(3770))=(0.204+/-0.003(+0.041)(-0.027) keV. Uncertainties shown are statistical and systematic, respectively.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., Hietala, J., ... CLOE collaboration.

publication date

  • January 1, 2006 11:11 AM