Using the CLEO-III detector at CESR we study collisions in the center-of-mass energy close to, or above, production threshold. We search for evidence of resonance production and set upper limits based on inclusive hadron production as a barometer of production.
DOI:https://doi.org/10.1103/PhysRevD.71.012004
©2005 American Physical Society
6 June 2007
(a) above threshold data (triangle), five-flavor continuum MC (solid) and simulated two-photon events (circles). (b) distribution for (dashed) and non- (solid) type events.
Reuse & PermissionsThe distribution above threshold compared with below- data (a) and on-resonance data compared with below- data (b). Circles show the subtracted distributions.
Reuse & PermissionsDistribution at one energy point above threshold compared with below- after the boost (data).
Reuse & Permissions(a) Relative yield of the (lower), (middle) and (upper) visible cross section for the inclusive selection of , and assuming a 7.9% increase of the total cross section above threshold. (b) for different analysis strategies and cross sections.
Reuse & PermissionsThe estimated cross section in units of R. The error bars on the data points represent both the statistical and the systematic errors summed in quadrature. (a) The solid line shows a fit to a horizontal line. (b) The solid line shows a fit to Eq. (3). The fits are described in the text.
Reuse & PermissionsThe cross section for events with at least one antiproton normalized by . (The data have not been corrected for hadronic event efficiencies.) The solid lines show fits to Eq. (3). The errors are statistical only.
Reuse & PermissionsThe cross section for events with at least one normalized by . (The data have not been corrected for hadronic event efficiencies.) The solid lines show fits to Eq. (3). The errors are statistical only.
Reuse & PermissionsThe fractional upper limits at 95% C.L. for production obtained using (solid line), antiproton (dashed line) and the (dotted line) yields set by using the BES function. For the case only, systematic errors have been included.
Reuse & PermissionsUpper limits at 95% C.L. for production obtained using (solid line), antiproton (dashed line) and the (dotted line) yields. (a) The upper limits have been set in six MeV center-of-mass energy intervals in the scan region. (b) Upper limits in 18 MeV wide intervals. For the case only, systematic errors have been included.
Reuse & Permissions
